scholarly journals Component traits influencing seed yield in recombinant inbred lines of lentil (Lens culinaris Medik.)

2017 ◽  
Vol 9 (2) ◽  
pp. 992-997
Author(s):  
Alok Kumar ◽  
R. K. Gill ◽  
Sarvjeet Singh
Keyword(s):  
Seed Yield ◽  
Recombinant Inbred ◽  
Harvest Index ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Yield Improvement ◽  
Component Traits ◽  
Biological Yield ◽  
Positive Direct ◽  
Selection Of

One hundred and thirty five RILs (Recombinant Inbred Lines) developed from a cross between an indigenous and exotic line of lentil (Lens culinarisMedik.)were evaluated for seed yield and component traits during rabi 2012-13 and 2013-14. Pooled analysis of variance revealed significant differences among the RILsfor all the traits studied. This suggested that there was ample scope for selection of promising RILs for yield improvement in lentil. Phenotypic and genotypic coefficients of variation were high for pods per plant(32.49% and 26.75%) followed by biological yield per plot(24.38% and 21.28%). Genetic advance was highest for 100-seed weight(47.75%)followed by pods per plant(45.39%). Estimation of phenotypic correlation coefficients indicated that seed yield per plot expressed highly significant and positive correlation with biological yield per plot(0.634), harvest index(0.300) and seeds per pod(0.156). Path coefficient analysis revealed that the traits; biological yield per plot , harvest index, number of pods per plant, days to 50% flowering, days to maturity , plant height and primary branches per plant had positive direct effect on seed yield per plot. The selection of these traits would be helpful for further yield improvement in lentil.

scholarly journals Selection for yield and its component traits in interspecific recombinant inbred lines of tef

2020 ◽  
pp. 77-82
Author(s):  
Fisseha Worede ◽  
Hailu Tefera
Keyword(s):  
Grain Yield ◽  
Recombinant Inbred ◽  
Harvest Index ◽  
Biomass Yield ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Kernel Weight ◽  
Panicle Length ◽  
Days To Heading ◽  
Positive Direct

Forty recombinant inbred lines (RILs) of interspecific cross of Eragrostis tef x E. pilosa were evaluated to study variability and interrelationships among agronomic traits using randomized complete block design. The RILs were evaluated for 17 traits. The result showed panicle length, rind penetrometer resistance of the first and the second basal internodes, 100-kernel weight, kernel weight per panicle, plant height and grain yield per plant had high estimates of genetic coefficient of variation, broad sense heritability and genetic advance. Thus, improvement of these traits could be attained through direct selection without the masking effect of the environment. The correlation study showed positive and significant (p<0.01) phenotypic and genotypic associations of grain yield per plant with days to heading and maturity, panicle length, 100-kernel weight, kernel weight per panicle, biomass yield per plant and harvest index. Genotypic path coefficient analysis revealed that panicle length, biomass yield per plant, crushing strength of the second basal internode, harvest index, days to heading and kernel weight per panicle exerted appreciable positive direct effect on grain yield per plant. These traits could, therefore, be considered as indirect selection criteria while selecting lines in order to improve grain yield of the interspecific population.

scholarly journals Seed yield and its components of indeterminate and determinate lines in recombinant inbred lines of soybean

2015 ◽  
Vol 65 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Shin Kato ◽  
Kenichiro Fujii ◽  
Setsuzo Yumoto ◽  
Masao Ishimoto ◽  
Tatsuhiko Shiraiwa ◽  
...  
Keyword(s):  
Seed Yield ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals Relationships between seed yield and yield components in narbon bean (Vicia narbonensis L.) by path analysis

1970 ◽  
Vol 37 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Mevlüt Türk ◽  
Necmettin Çelik ◽  
Gamze Bayram ◽  
Emine Budakli
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Harvest Index ◽  
Stepwise Multiple Regression ◽  
Path Coefficient ◽  
Vicia Narbonensis ◽  
Biological Yield ◽  
Primary Selection ◽  
Positive Direct ◽  
Weight Number

Results of correlation analysis indicated that seed yield in narbon bean (Vicia narbonensis L.) was correlated positively with harvest index, biological yield, weight, number of seed and number of pod per plant and also plant height and number of plant per m2. Path coefficient analyses revealed that harvest index and biological yield had higher positive direct effects on seed yield than other variables. Stepwise multiple regression analysis showed that 95.1% of total variation in seed yield could be explained by the variation in harvest index, biological yield and plant height. Results suggest that harvest index and biological yield are primary selection criteria for improving seed yield in narbon bean.   

Evaluation of genetic variability, heritability and genetic advance in blackgram [Vigna mungo (L.) Hepper]

2018 ◽  
Author(s):  
Shilpa Chauhan ◽  
Raj Kumar Mittal ◽  
A. Lohar ◽  
Vinod Kumar Sood ◽  
Ranjana Patial
Keyword(s):  
Experimental Study ◽  
Seed Yield ◽  
Harvest Index ◽  
Block Design ◽  
Genetic Advance ◽  
Biological Yield ◽  
High Heritability ◽  
Superior Genotypes ◽  
Transgressive Segregants ◽  
Selection Of

An attempt was made to study blackgram germplasm with an objective to develop genetically diverse genotypes accompanied with high heritable components of yield contributing traits. The experimental material comprised of 21 blackgram genotypes, was examined during kharif 2015 and 2016. Experimental study conducted during kharif 2015, was mainly relied on selection of transgressive segregants, which were further analyzed in Compact Family Block Design during kharif 2016. The results depicted that families and progenies within families were significantly different for majority of the traits and found to be highly variable for biological yield, harvest index and seed yield. High heritability coupled with high genetic advance were recorded for plant height (74.15%, 33.12%), branches per plant (84.34%, 40.55%), biological yield (83.51%, 69.11%) and seed yield (84.50%, 66.11%). Thus, the present findings could be beneficial to develop superior genotypes through selection in blackgram breeding program.

scholarly journals Correlation and path analysis in recombinant inbred lines (RILs) of wheat (Trticum aestivum L.)

2016 ◽  
Vol 8 (2) ◽  
pp. 826-832
Author(s):  
Ramesh Ramesh ◽  
Shailesh Marker ◽  
S. Muniswamy ◽  
Yamanura Yamanura
Keyword(s):  
Grain Yield ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Flag Leaf ◽  
Correlation Coefficients ◽  
Grain Filling ◽  
Inbred Lines ◽  
Spike Length ◽  
Grain Filling Period ◽  
Selection Of

Correlation and path coefficient analysis were studied in 22 heat tolerant Recombinant Inbred Lines (RILs) of wheat. Analysis of variance revealed the significant difference among genotypes for all the characters. Suggested that there was ample scope for selection of promising RILs for yield improvement. A wide range of variability was exhibited by most of the traits. The results of correlation studies indicated that genotypic correlation coefficients were higher in magnitude than their corresponding phenotypic correlation coefficients for all the traits which indicated that association among these characters was under genetic control and indicating the preponderance of genetic variance in expression of characters. Grain yield per plant had high, significant and positive association with number of grains per spike, spike weight, spike length, canopy temperature depression, tillers per plant, grain filling period and chlorophyll content both at genotypic and phenotypic levels indicating that these traits were main yield attributing traits. Path analysis revealed that grains per spike, tillers per plant, spike length, had the highest positive direct effect on grain yield followed by flag leaf length, flag leaf width, days 50% heading, plant height, grain filling period, membrane stability and days to maturity at genotypic level. The selection of characters such as grains per spike, tillers per plant, spike length and spike weight would be helpful for further improvement in RILs of wheat.

scholarly journals Genetic variabiity and character association for quality traits in recombinant inbred lines derived from inter sub-specific crosses of rice (Oryza sativa L.)

2014 ◽  
Vol 43 (1) ◽  
pp. 97-99
Author(s):  
AH Madakemohekar ◽  
SS Bornare ◽  
AS Chavan
Keyword(s):  
Grain Yield ◽  
Recombinant Inbred ◽  
Amylose Content ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
High Yield ◽  
Gelatinization Temperature ◽  
Kernel Length ◽  
Seed Width ◽  
Positive Direct

The investigation was carried out to study the genetic parameters for quality and nutritional characters in 60 recombinant inbred lines (RIL’s) of rice. Analysis of variance revealed significant differences for all the traits. It was observed that grain yield per plant was positively significant associated with seed width, milling per cent, gelatinization temperature, amylose content and kernel breadth before cooking. Kernel length after cooking, seed width, milling per cent, amylose content and gelatinization temperature had positive direct effect on grain yield. Comprehensive examination of result revealed that the recombinant inbred lines tested for high yield in rice viz., RIL-77, 08, 99, 75, 10 and 13 were identified as superior. DOI: http://dx.doi.org/10.3329/bjb.v43i1.19756 Bangladesh J. Bot. 43(1): 97-99, 2014 (June)

Genetic Relationships and Principal Component Analysis in Elite Chickpea (Cicer arietinum L.) Genotypes for Seed Yield and Its Component Traits

2020 ◽  
Author(s):  
D. K. Janghel ◽  
Krishan Kumar ◽  
S. S. Verma ◽  
A. K. Chhabra
Keyword(s):  
Genetic Diversity ◽  
Cicer Arietinum ◽  
Seed Yield ◽  
Genetic Relationships ◽  
Component Analysis ◽  
Yield Improvement ◽  
Cicer Arietinum L ◽  
Effective Selection ◽  
Component Traits ◽  
Selection Of

Background: Chickpea (Cicer arietinum L.) is the important Rabi season food legume crop ranked third after common bean and field pea. The degree and extent of trait variability, genetic relationship and genetic diversity in promising chickpea genotypes should be known for possible yield improvement. Realizing the importance of genetic relationships and genetic diversity in key economic traits, the present investigation envisaged to measure the genetic relationships in the yield component traits to make effective selection for yield improvement in chickpea breeding programme. Methods: The experimental material comprised of 60 chickpea genotypes (both Desi and Kabuli types), grown in RBD with three replications at Pulses Section of Department of Genetics and Plant Breeding, CCSHAU, Hisar during Rabi 2014-15. The data on 11 quantitative traits was analysed for ANOVA, correlation coefficient, path coefficient, regression and principle component analysis. Result: The present study has led the understanding of many inter-related traits involved in the genetic variation of chickpea seed yield. This would certainly provide guidelines for selection of parents as well as effective selection of promising chickpea genotypes, and also have paramount importance in formulating plant model for selection of segregating generations in chickpea breeding programmes for development of high yielding varieties.

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