oryza sativa morphological characters

Based on twelve characters, the genotypes were grouped into five clusters. 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64. ex Watt and Oryza sativa L. f. spontanea Roshev.) Environmental influence was meagre on expression of characters as evidenced by narrow gap between GCV and PCV for most of the characters. Kaase bai and Champakali which are genetically variable and high yielders over local check varieties could be utilized in crop This study examines the effects of climate change (e.g., maximum temperature, minimum temperature, rainfall, relative humidity, and the sunshine) on the major crops of Pakistan (e.g., wheat, rice, maize, and sugarcane). Shannon and Simpson’s indices were calculated for 18 qualitative traits. Weed Research 52, 60–69. Summary. Direct selection of characters of these traits based on phenotypic expression by a simple selection method would be more reliable for yield improvement. distinguishable rice landraces. Agro-morphic characterization of these twenty landraces was done during 2011-12 & 2012-13 kharif session at the Village of Ranbahal, PO-Amarkanan of this District. L-12, 13, 14, 15, 16, 17, 23, 24, 25, 30, 39 and L-, 35, 36, 36, 38, 42, 43, 44, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 49, 50, 51, 52, 53, 54, 55, 60, 61, 62, 63 and 64. All rights reserved. The landraces were grouped into six clusters where 12 landraces were grouped into cluster I. The characters viz., days to 50% flowering, leaf length, leaf width exhibited high heritability and panicle per plant, canopy temperature, spikelet per plant, no. Sixty-two agro-morphological characteristics are conventionally used in the DUS test for varietal identification from paddy field crops, DUS characterization for farmer varieties of IOSR. distinctiveness, uniformity and stability. The unfortunate aspect is that out of over fifty land races none is being cultivated in organized way. Although we have such a huge diversity in rice, foreign germplasm is commonly used as the parents in rice breeding programs, and Nepal is about 95% dependent on foreign rice germplasm for varietal development (Joshi 2017). Agro-morphological, Oryza sativa f. spontanea , salient trends, Weedy rice. for single plant yield improvement will effective for these trait. Distance between cluster centroids of 30 rice landraces from Lamjung and Tanahun district. land and present productivity is about 120.6 million tons per year. panicle. These characters were predominantly governed by additive gene action. As most of the land races are in informal agriculture sectors, our information about them is incomplete. us, the result from this study along with the result of Pokhrel et al. L-5, 29, 48, 52, 53, 54, 55, 56, 57 and 64. Analysis of variance indicated the existence of significant differences among genotypes for all the characters studied except leaf width and harvest index. The qualitative characters viz basal leaf sheath color, culm attitude, curvature of panicle, panicle weight and leaf senescence were highly distinct across the genotypes. Department of Plant Breeding and Genetics, University of Agriculture and Horticultural Science, *University of Agricultural Sciences, Dharwad, the rice growing farmers across the Southern transitional, like Rajaboga, Rajamudi and Ratnachudi have fine, Sixty four traditional rice genotypes were considered, Table 1 List of traditional rice genotypes, anthocynin color whereas, 78.12% of genotypes had leaf, The density of pubescence on leaf w. weak 9.37% and strong in 46.87% of genotypes. timate leaf length showed positively significant, also showed positively significant corr, panicle (TGP), Panicle length (cm) (PL), Grain Length Breadth ratio (LBR), Flag leaf length (cm) (FLL), **. distinct across the genotypes. evaluation for crop improvement program and can be used for assessing genetic diversity among morphologically Wide variation among the grain morphological. India is an inland to vast varieties of rice cultivars, landraces and many lesser known varieties that landraces of rice cultivars of Bankura District of West Bengal. 49, 50, 51, 52, 57, 58, 59, 60, 61 and 62. Path coefficient analysis revealed highest direct effect on grain yield for number of grains per panicles and 1000 grains weight. The most prominent production problems as perceived by the farmers are lack of technical know-how, lack of irrigation, lack of organized credit facilities, and lack of quality inputs at the time of need. An experiment was conducted at the National Bureau of Plant Genetic Resources station at Ranchi and a rice research farm, also at Ranchi, during 1989-94 using 6 rice cultivars (NIC 40484, NIC 10514, CR 3001, AC 1225, Blackgora and Browngora) to evaluate the inheritance and linkage relationship of some morphological traits. Based on D statistics, all the 64 cultivars were grouped into fourteen clusters. Julino B O. Therefore, these characters could be used as criteria for selection of genotypes with high seed yield. Fifty five traditional rice varieties of West Bengal, mostly from the lateritic region, were investigated for grain morphological characters. 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63 and 64. Email: profantonio7@uniben.edu.ng Accepted 17 … O. sativa, as they often lack clear distinguishing morphological characteristics (Vaughan & Morishima 2003). The experiments were laid out in a Randomized Complete Block Design (RCBD) with three replications. Annually approximate 120.6 million tons of rice is being produced and on the basis of production it occupies second position in the world (Food and Agriculture Statistics, 2010). © 2008-2020 ResearchGate GmbH. Access scientific knowledge from anywhere. L-4, 11, 13, 18, 24, 27, 29, 45, 48, 51, 59, 60, 61, 62 and 63. Correlation is significant at the 0.01 Level (2-tailed); *. In 2008, seeds of 149 weedy rice populations were collected from the major Italian rice cultivation area. Agro-morphological characters were analyzed using Multivariate statistical analysis. A Biometric Approach. The first three principal components explained about 79.05% of the total variation Inheritance of botanical traits in rice (O. sativa x O.rufipogon F1 and F2 showed 89cm and 83.38cm for plant height, where as … PC1 included the traits that were L-2, 3, 37, 40, 42, 56, 57, 58, 59 and 63. Needless to mention, the land races are valuable as they possess treasure of genetic material which may prove valuable in future crop development and improvement programs. High heritability along with moderate genetic advance was observed in the character plant height. Int. Mohiuddin 1*, Shahanaz Sultana 2 and Jannatul Ferdous 2 1Department of Biotechnology and Genetic Engineering, Mawlana Bhashani Science … India is centre of origin of this important food grain and all together the country proudly possesses 88,681 different variety of rice, out of that 55,265 are land races, 1,171 are wild races and 32,245 are other varieties. The principle morphological characteristics of the genus include rudimentary sterile lemmas, bisexual spikelets, and narrow, linear, herbaceous leaves with scabrous margins. February 2020 Annals of Plant Sciences 9(2):3731-3741 L-1, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 20, 21, 26, 34, 35, 36, 37, 43, 46, 47, 48, 50, 51, 52, 53, 54, 61, 62, 63, 64 and L-, L-1, 4, 8, 18, 19, 20, 21, 24, 25, 32, 54, 55, 56 and 64. Zaman MR, Paul DN, Kabir MS, Mahbub MA, and Bhuiya MA. agro-morphological characters. With average landholding of 1.6 ha/household, 64.6% of the respondents were growing rice under 1 ha of land on an average. L-12, 15, 34, 40, 46, 44, 31, 35, 42, 47, 8, 41, 19, 9, 54, 55, 56 and 57. According to the magnitude of the direct effects on grain yield. Superior characters possessed by rice landraces can be further assessed for the breeding programs so that the cultivation of these cherished rice landraces can be enhanced. To produce a new variety that is superior in terms of production and benefits, one of the information needed is agronomic and morphological character knowledge, which is very necessary to determine the kinship between varieties used as a basis for determining the parent in plant breeding. The results of PCA suggested that characters such as leaf length and width ratio, plant In the two years, correlation coefficients showed that number of grains per panicle (r = 0.95, 0.59), panicle weight (r = 0.57, 0.97) had positive and significant correlation with grain yield, while in 2014, grain yield was positive and significantly correlated with number of panicles/plant (r = 0.99) and grain yield was also positive and significantly correlated with 1000-grain weight (r = 0.77) in 2014 respectively. The maximum value, minimum value, coefficient of variation and Pearson correlation were analyzed to study quantitative characters. 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47. Twenty rice landraces collected from different ecological regions of Bangladesh were studied to assess the nature and magnitude of genetic divergence among them. contributing traits of 30 landraces of rice. varieties of IOSR. Codes of cultivars are showed in Table 1. Flag leaf, landraces had erect, 30% semi erect and 17%, landraces showed low shattering followed by, characters among 30 landraces from Lamjung. Regression and Correlation Analysis of Some Morphological and Agronomic Characters in F2 Generation of Rice (Oryza sativa L.) Afifuddin Latif Adiredjo, Damanhuri … 197) > 1000-grain weight (0.165 and 0.136). Biswajit Mondal. quantitative morphological characters with 82 agro-morphic descriptors was carried out. Indonesian Journal of Agricultural Science. Genotypes such as Sanna mundaga, The situation is fast eroding indigenous cultivars of rice. Rice is the staple food grain of West Bengal and Bankura district of this state is major producer of this grain. Hence, indirect selection for grain yield could be effectively done through direct selection of yield component characters as indicated above, “Identifying suitable rice genotypes under salinity situations through farmers participatory program me”, University of Agricultural Sciences, Dharwad, Automated Paddy Variety Recognition from Color-Related Plant Agro-Morphological Characteristics, AGRO-MORPHOLOGICAL CHARACTERIZATION AND MORPHOLOGY BASED GENETIC DIVERSITY ANALYSIS OF LANDRACES OF RICE VARIETY (Oryza sativa L.) OF BANKURA DISTRICT OF WEST BENGAL, AGRONOMIC EVALUTION OF LANDRACES OF RICE (ORYZA SATIVA) OF BANKURA DISTRICT OF WEST BENGAL, A Simplified Assay for Milled-Rice Amylose, Agro-morphological characterization of rice landraces variety (Oryza sativa L.) of Bankura district of West Bengal, Multivariate Analysis of Phenotypic Diversity of Landraces of Rice of West Bengal, The morphology and varietal characteristics of the rice plant, Principles and Procedures of Statistics. Large numbers of rice landraces are grown by only a few farmers in small plots. 39, 40, 42, 43, 44, 46, 48, 49. The principal component analysis revealed that five among the thirteen principal components were significant (eigenvalue >1) and contributed to 29.96%, 20.26%, 13.56%, 11.68%, and 9.22% of the total variance, respectively. The accessions PKSLGR-16, PKSLGR-23, PKSLGR-43 and PKSLGR-45 are found to be most promising for yield and two to four of its component traits. Keywords. L-1, 2, 3, 6, 7, 8, 14, 20, 23, 26, 33, 36, 40, 44, 45, 46, 47, 48, 50, 51, 52, 58. It is therefore urgent to collect agronomic and other characters of land races. The first and second principal components were mostly related with the physical and chemical characteristics while the third and fourth principal components were concerned with cooking characters. 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64. Exploration and understanding diversity and variability in landraces determines the success of rice improvement programs. For this purpose, 80 breeding lines derived from 11 different cross populations in the F6 generation and their 10 parents were tested in a randomised complete block experiment design with two replications at the Thrace Agricultural Research Institute in 1995. 2. Sterility percentage, effective branch tiller per hill and panicle length had high coheritability with grain yield suggesting that selection for these characters would improve grain yield. For Cluster analysis of qualitative traits the cultivars were grouped into five clusters based on similarity 46, 47, 48, 49, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64. Distribution of 544 varieties along the first axis of a principal component analysis of the variation for 9 morphological characters. But in present situation rice cultivation is restricted to 5-10 high yielding variety and few landraces varieties. The filled-grain per panicle exhibited a high estimate of PCV and GCV, followed by the effective tiller and filled grain percentage. In this study, we assessed and evaluated milled rice of 30 rice landraces on their physicochemical and cooking characteristics which aim to promote the revival of old landraces. The variability existing in the rice landraces is the source of variation and offers a substantial opportunity for the development of new varieties. All the yield attributing traits were high heritability and it could be suggested that the characters were governed predominantly by additive gene actions and grain yield was positively correlated with flag leaf area and high density seed indicating the importance of these traits as selection criterion in yield enhancement programmes. Significant variations (p < 0:05) were found in all the properties that were evaluated. 1. DUS Characterization of Rice (Oryza Sativa L.) Using Morphological Descriptors and Quality Parameters Show all authors. In this study characterization of twenty landraces of rice presently available in this district was performed using DUS testing protocol. © 2008-2020 ResearchGate GmbH. The preference, choice, and the economy of rice (Oryza sativa L.) largely depend on its physicochemical and cooking properties, which are found to be superior for landraces than modern varieties. indica Kato) were collected from different ecological niches. ermplasm lines using PVC pipes under saline and normal soil condition. The objective of the study was to assess diversity, genetic variability, heritability, genetic advance for the yield, and yield contributing traits of 30 landraces of rice. Institute of Agriculture and Animal Science, Multivariate Analysis of Phenotypic Diversity of Rice (Oryza sativa L.) Landraces from Lamjung and Tanahun Districts, Nepal, Evaluation of Physicochemical and Cooking Characteristics of Rice ( Oryza sativa L.) Landraces of Lamjung and Tanahun Districts, Nepal, Variability And Heritability Estimate of 30 Rice Landraces of Lamjung and Tanahun Districts, Nepal, Evaluation of Qualitative and Quantitative Traits and Correlation Coefficient Analysis of Six Upland Rice Varieties, Climate Change and Its Impact on the Yield of Major Food Crops: Evidence from Pakistan, Genetic Divergence in Landraces of Bangladesh Rice (Oryza sativa L.), Genetic variability and correlation of some morphometric traits with grain yield in bold grained rice (Oryza sativa L.) gene pool of Barak valley, Characterization and assessment of variability in upland rice collections, Production Economics of Rice in Different Development Regions of Nepal, ASSESSMENT OF GENETIC VARIABILITY CHARACTER ASSOCIATION AND PATH COEFFICIENT FOR YIELD AND ITS COMPONENT CHARACTERS IN RICE, Potential loss of rice landraces from a Terai community in Nepal: A case study from Kachorwa, Bara, Morphologybased multivariate analysis of phenotypic diversity of landraces of rice (Oryza sativa L.) of Bankura district of West Bengal, Correlation and path coefficient analysis for some yield-related traits in rice (Oryza Sativa L.) under thrace conditions, Undergraduate Practicum Assessment (Maize Breeding). The objective of the study was to characterize thirty landraces of rice (Oryza sativa L.) of Lamjung and Tanahun district based on 30 qualitative and 8 quantitative characters, recorded as per descriptor established by IRRI, Bioversity International and WARDA. International Journal of Conservation Science. Morphological Characterization of Traditional Rice (Oryza sativa L.) Genotypes of Southern Transitional Zone, Karnataka, According to DUS Test Guidelines March 2016 Pakistan is vulnerable to climate change, and extreme climatic conditions are threatening food security. 20, issue 1 - 2 (2018) 9 to the taxon No. The present study revealed that varieties (NERICA 1, 4 and 8) with the highest number of grains per panicle, highest grain weight, more number of panicles per plant and large panicle size, increase rice yield in upland ecology. 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64. Professors Amit Khanal, Mahesh Jaishi, Kapil, us with valuable landraces as research materia, urce/statistical-information-nepalese-agricul-, Characterization and assessment of variabil, ... e intracluster distance is due to the heterogeneous nature of the landrace within a cluster. List of 30 landraces collected from Lamjung and Tanahun District. In addition, the yield components had positive direct effects on grain yield. However, both high biological yield and high harvest index should be taken into account together in this selection due to their negative correlations and indirect effects each other. improvement. High heritability, along with a high genetic advance was found in 10 traits, including 1000 grain weight, grain length, and filled grain per panicle indicated the presence of additive gene action. Campus, during June–November 2018 to determine relation among individuals, estimate the relative contribution of various traits of rice using principal component analysis, and identify the potential parents for hybridization using Mahalanobis distance (D2). The quantum of production has increased from 0.3 million ton in 1966 to nearly 1.1million ton at present. Pusa Sugandha one of the most promising one showed maximum plant height at maturity, no. The work finds application in developing a tool for assisting botanists, Rice scientists, plant breeders, and certification agencies. Weedy rice (Oryza sativa) is one of the most widespread and problematic weeds in rice cultivation; it spans the globe and can cause high yield losses. L-7, 20, 25, 34, 35, 37, 38, 41, 43, 50, 51, 52 and 53. High heritability, along with a high genetic advance was found in 10 traits, including 1000 grain weight, grain length, and filled grain per panicle indicated the presence of additive gene action. Some of the landraces like Rato Masino, Thakali Lahare Marsi, Biramful, and Lekali Marsi from Lamjung and Tanahun districts were found to be promising landraces for yield and yield attributing traits, The aim of this project is to characterize the local landraces of rice from Lamjung and Tanahun districts of Nepal. All landraces showed significant variations (p <0.001) for all 13 qualitative traits studied. The maximum intercluster distance was obtained between clusters V and VI (D2 = 40.18) followed by clusters III and VI (D2 = 36.17) and clusters IV and VI (D2 = 35.74). 1 identi ed as Oryza sativa L-1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18. enticing characters such as, Rice landraces of hilly zone of Karnataka were characterized for distinctness and uniformity according to DUS test guidelines of PPV & FR authority. L-4, 20, 28, 40, 43, 34, 32, 47, 50, 51, 53, 55, 59, 61 and 63. for improvement of agronomic, nutritional, Table 3 Mean values of yield and its component characters, would be suitable for registration as farmers variet.  Study of root related traits of selected rice g, Sixty four traditional rice genotypes collected from the different places of Southern Transitional Zone of Karnataka, were characterized according to DUS test guidelines of PPV&FR ac 2001, at University of Agricultural and Horticultural Sciences, Shivamogga. L-1, 2, 5, 6, 17, 18, 28, 34, 36, 42, 50, 51, 52, 53, 54, 55, 61, 62, 63 and 64. 34, 43, 55, 56, 58, 59, 60, 61, 62, 63, 64 and L-, L-7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 22, 26, 28, 2, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63, 64 and L-. The adoption of MV is based on higher yield potential, better market demand, better pricing and reduced lodging compared with local landraces. 27, 28, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48. The first three principal components explained about 86.9% of the total variation among the 12 characters. L-12, 19, 27, 58, 59, 60, 61, 62, 63 and 64. The set of six combined agro-morphological characteristics recorded during maturity growth stage has given the highest average paddy plant variety recognition accuracies of 91.20% and 86.33% using the BPNN and SVM classifiers respectively. coefficient of Jaccard. At various times, more than 100 names have been proposed for the Oryza species, including 19 for O. sativa alone (Oka 1988; Lu 2004). Fig. Sumer Pal Singh. The areas to the east and northeast are low lying alluvial plains, similar to predominating rice lands of Bengal. 49, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64. Characterization has confirmed the existence of Distinctness, Uniqueness and Stability The k-means color clustering method has been used to segment the target regions in the paddy plant images. Character association studies revealed significant and positive association of grain yield per plant with tillers per plant, panicle per plant, no. These problems need to be addressed to improve the production situation and efficiency of rice production in the country. Forty eight upland rice germplasm accessions were evaluated and characterized for fourteen quantitative and fifteen qualitative traits. The basic nomenclature of Oryza species has changed little since the 1960s (for review see [4 ••]). Based on this research highly distinguish rice genotypes would be opt for This information was supplemented by the information obtained from group discussions, observations and other secondary sources. resistance. 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63 and 64. Path coefficient analysis revealed that days to 50% flowering had highest positive direct effect on grain yield plant-1 followed by test weight and high density seed thus selection L-1, 2, 4, 5, 6, 12, 13, 17, 20, 21, 22, 36, 37, 47 and 51. 36, 40, 43, 44, 45, 46, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 62, 63 and 64. Whereas, maximum intra cluster distance was observed in cluster III (225.63) indicating, hybridization involving genotypes within the same cluster may result in good cross combinations. Although most of them were of medium grain type, their 1000 kernel weight varied between 12.62 g and 25.65 g. From the observed chemical properties, Pahelo Anadi (9:73 ± 0:55mm) showed the highest gel consistency and lowest apparent amylose content (7:23 ± 0:36%). polymorphic except coleoptiles colour, present of leaf collar, shape of ligule and present of secondary branching in Plant height (0.1977*) and test weight The changes in basic nomenclature of Oryza species occurred in slow pace since the 1960s ( Vaughan and Morishima, 2003 ). Pearson Correlation matrix among eight quantitative characters for 30 rice landraces of Lamjung and Tanahun district. Although most of them were of medium grain type, their 1000 kernel weight varied between 12.62 g and 25.65 g. From the observed chemical properties, Pahelo Anadi (9:73 ± 0:55mm) showed the highest gel consistency and lowest apparent amylose content (7:23 ± 0:36%). But most of the modern high yielding varieties are medium and fine grained. Mean values of effective tiller and kernel width were found maximum in clusters V and VI, respectively. Phenotypic divergence for agro-morphological traits among landrace genotypes of rice (Oryza sativa L.) from Pakistan. Farmers’ plots were monitored during 3 years and changes in varietal choice were re- corded. width (64.06%), medium days to heading (62.50%), Table 2 Morphological characterization of traditional rice, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63 and 64, L-1, 3, 6, 22, 25, 33, 34, 35, 41, 43, 46, 49, 50 and 51. An investigation was conducted in Agronomy farm of Institute of Agriculture and Animal Science, Lamjung Campus in alpha-lattice design with two replications. Obviously land races are disappeared fast. National guidelines for the conduct of tests for distinctiveness, uniformity and stability. Field experiments were conducted in 2014 and 2015 seasons at the Teaching and Research Farm, Federal University Oye, (Ikole campus) Ekiti State, Nigeria, to determine genetic variability for phenotypic traits (qualitative and quantitative) among six upland rice varieties through estimating heritability of yield and yield components, genetic advance, correlation coefficients of grain yield and yield contributing traits. Another serious factor is changing climatic condition of this region. All figure content in this area was uploaded by Shishir Sharma, All content in this area was uploaded by Shishir Sharma on Feb 28, 2020. science, Tribhuvan University, Lamjung Campus, information for plant breeding programs. Most traits were The phenotypic correlations among the traits and their path coefficient were estimated in both years. Agro-morphological, Oryza sativa Biswajit Mondal. L-5, 10, 11, 12, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 62. Also, 13% of landraces possessed strong aroma while noble cooking properties were showed by Thakali Lahare Marsi with the highest elongation ratio (2:41 ± 0:05) and by Chiniya with the lowest gruel solid loss (0:033 ± 0:03%) and minimum optimum cooking time (23:45 ± 0:03 min). Sixty four traditional rice genotypes collected from the different places of Southern Transitional Zone of Karnataka, were characterized according to DUS test guidelines of PPV&FR ac 2001, at University of Agricultural and Horticultural Sciences, Shivamogga. awned characters were apomorphic in WR eco-type populations in Sri Lanka. Rice landraces, An investigation on divergence, variability and associations among yield related traits were studied using sixty four traditional rice cultivars. 37, 38, 40, 41, 42, 44, 45, 47, 48, 51, 52, 53, 54, 56, 57, 58, 60, 61, 63, 64. These cultivars were refined through selection depend on All rights reserved. 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 41, 42, 44, 45, 46, 47 and 48. Path coefficient analysis revealed that biological yield (0.748 and 0.481) and harvest index (0.413 and 0.704) had the highest positive direct effects on grain yield in both years. Morphological characterization of traditional rice genotypes according to DUS test guidelines, All figure content in this area was uploaded by B. M. DUSHYANTHA Kumar, All content in this area was uploaded by B. M. DUSHYANTHA Kumar on Aug 16, 2016, Research Journal of Agricultural Sciences, Morphological Characterization of Traditional R, T C Sridhar, B M Dushyantha Kumar, B R Mani* and G K Nishanth. Cheng, K.S. The value of the Shannon and Simpson index ranged 0.15–1.41 and 0.07–0.75, respectively. Characterization has confirmed the existence of Distinctness, uniqueness and stability for the traits studied as given in the guidelines. The morphological characterization of plant is the basic criteria in order to provide fundamental information for plant breeding programme. The principle morphological characteristics of the genus include rudimentary sterile lemmas, bisexual spikelets, and narrow, linear, herbaceous leaves with scabrous margins. West Bengal is great reservoir of rice. Mean values of effective tiller and kernel width were found maximum in clusters V and VI, respectively. The preference, choice, and the economy of rice (Oryza sativa L.) largely depend on its physicochemical and cooking properties, which are found to be superior for landraces than modern varieties. Among the qualitative traits variation was found to be high for leaf blade colour, leaf blade pubescence, ligule shape, panicle shattering, leaf senescence and sterile lemma colour. twenty-nine morphological and eight agronomical traits. 30 rice landraces on their physicochemical and cooking characteristics which aim to promote the revival of old landraces. The climatic condition adversely affects maturation and reproductive cycle of plants. Pearson correlation matrix, Principal Component Analysis (Pearson –n type), the unweighted Assessment of character contribution to the divergence for some rice varieties. Clustering analysis led to the grouping of lines in to 2 major groups. L-2, 5, 7, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 21, 23, 24, 26, 27, 28, L-4, 6, 8, 20, 22, 25, 29, 35, 36, 37, 43, 45, 47, 52 and 54, L-1, 9, 15, 18, 21, 22, 25, 26, 29, 34, 37, 50, 52 and. The result showed that the highest milling recovery was found in Indrabeli (75.55%) whereas the lowest was found in Kalo Masino (66.98%) and bulk density ranged from 0.81 g/cm3 to 0.88 g/cm3 showing not much variability. The study further revealed that the varieties selected are adaptable and can thrive well in the study area. for the traits studied as given in the guidelines. tonnes all over the world. Indonesia has a high level of rice germplasm, both black rice and aromatic rice. Lastly, high heritability with low genetic advance was recorded for the character days to 50% flowering. References. A significant amount of variation was displayed for most of the agronomical traits examined.  Screening of 200 rice germplams under saline farmers field. 38, 43, 48, 4, 10, 25, 20, 28, 33, 37, 39, 45 49,50, 51, 52, 53, 58, 59, 60, 61. L-2, 9, 10, 12, 14, 15, 16, 19, 22, 23, 24, 25, 27, 30, 31, 32, 39, 40, 41, 42, 44, 55, 56, 57, 58, 59, 60 and L-. 2003. However, the, landraces are disappearing at fast rate (Sinha, provide basic information to facilitate the choice.  Collection of 200 Rice germplasms from Mudigere and CRRI, Cuttack Analysis of variance showed significant difference among the genotypes to all the characters under both control and low-moisture stress condition. The first and second principal components were mostly related with the physical and chemical characteristics while the third and fourth principal components were concerned with cooking characters. analyzed quantitative data. Table 2. The associations among yield components, and their direct and indirect influence on the grain yield of rice were investigated. Days to maturity contributed maximum (36.41%) towards divergence, followed by straw yield per plant (19.54%). Variation for 9 morphological characters and constitution of axis 1 of its principal component analysis. A simplified assay for milled rice amylase. The maximum distance was observed between CAUS122 and CAUS110 and minimum distance was observed between CAUS120 AND CAUS106. 'e magnitude and nature of genetic divergence play a vital role in the selection of the desirable landraces for its utilization in the breeding program. Phenotypic path coefficient analysis had revealed the highest positive and direct effect of days to maturity (0.5107) followed by harvest index (0.3110) on grain yield. The study suggests the existence of the diversity and estimated genetic parameters among landraces of rice that can be exploited in future breeding programs. L-2, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25, 26. of grains per plant, spikelet fertility, harvest index, and yield per hectare exhibited medium heritability. Frequency distribution of thirty qualitative traits of collected thirty rice landraces from Tanahun and Lamjung District. among the 13 characters. The study suggests the existence of the diversity and estimated genetic parameters among landraces of rice that can be exploited in future breeding programs. forwarding this to further generation and registration as farmers variety. Flag leaf length showed positive significant correlation with penultimate leaf length (r=0.674**), total tillers (r=0.437**), effective tillers (r=0.356**) and Grain Length: Breadth ratio (r=0.430**). High level of inter-cluster distance was found between cluster II and V and between cluster I and III. Very small difference between GCV and PCV was observed for the characters like days to 50% flowering and flag leaf breadth. Subbarao L V, Shivaprasad G V, Chiranjivi M, Chaitanya U and Surendhar S. 2013. In the present investigation, high heritability associated with high genetic advance was found in the characters grain yield per hill and sterility percentage. A study was carried out with 30 rice landraces at the Institute of Agriculture and Animal Science, Lamjung

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