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Background: Lentil is one of the most significant pulse crops, frequently referred to as "poor man's meat" because of its high protein content and inexpensive price. The present study was assessed for eleven morphological and yield variables to determine genetic variability, correlation and path co-efficients. Methods: The experiment was conducted in a randomized complete block design using 56 different homogeneous progenies of a spontaneous mutant of lentil variety DPL 62 and four control varieties in triple replica during rabi 2017-18. Result: Significant amount of variability was observed for all the traits. High phenotypic coefficients of variance and genotypic coefficients of variance coupled with high heritability and genetic advance were observed for peduncle length, number of pods per plant, seed width, seed yield per plant suggesting that these traits are genetically controlled by additive gene action. Seed yield per plant exhibited significant positive association with number of branches/plant and number of pods/plant while number of pods/plant revealed highest positive direct effect on seed yield per plant followed by 100-seed weight, number of branches per plant, days to maturity and leaflet breadth. Therefore, selection for these characters will directly lead to improvement in the yielding ability of lentil genotypes. [ABSTRACT FROM AUTHOR]

In a study carried out with 71 genotypes of Indian mustard under sub-Himalayan condition during rabi 2017-18, it was found that all the genotypes differed significantly for yield and its attributing traits. Both GCV and PCV were found to be higher for height up to first fruiting branch, aphid count and penetration force indicating high variability in the genotypes. High heritability along with high genetic advance was observed for height up to first fruiting branch, primary branches per plant, secondary branches per plant, siliquae per plant and 1000 seed weight. The trait association study revealed that secondary branches per plant and siliquae per plant had positive significant association with seed yield per plant. Path coefficient analysis indicated that penetration force exhibited the highest direct effect on seed yield. Siliquae per plant and secondary branches per plant exhibited high direct positive effect and positive association with seed yield per plant. On the basis of all the eleven traits taken together, the genotype PRD-2013-9 (rank-1) was the best. [ABSTRACT FROM AUTHOR]

The present investigation was conducted to explore the genetic variability, character association and path analysis for yield and yield component traits in maize. One hundred maize inbred lines obtained from Department of millets,TNAU were raised along with five checks in Augmented block design II and observations were recorded on twenty morphological traits. Analysis of variance showed significant genotypic variance for all the characters. High PCV, GCV heritability and genetic advance as percentage of mean were recorded for anthesis silking interval, number of tassel branches, number of kernels per row, grain yield per plant, cob weight, ear height and number kernel rows per cob. This indicated the effectiveness of selection towards these traits. Critical analysis of results obtained from character association indicated that grain yield per plant had positive significant association with cob weight, cob girth, number of kernels per row plant height, cob length, ear height, 100 kernel weight, tassel length and chlorophyll index. Thus selection for these traits could bring about an improvement in yield attributes of maize. Path analysis for the attributed traits revealed the direct influence of cob girth followed by number of kernels per row, shelling percentage, days to 50 percent silking and ear height on grain yield. Hence these traits could be used as an effective selection indicator to identify the elite genotypes from a population. [ABSTRACT FROM AUTHOR]

The critical assessment of the nature and magnitude of variability in the available germplasm and finding out associations among yield and its contributing characters are the pre-requisites to any breeding program. Keeping these points in view, genetic variability and interrelationship among 10 quantitative characters were studied in a set of 27 lentil genotypes during two growing seasons 2010-2011 and 2011-2012. The field experiments were laid out in a randomized complete block design and conducted at the research farm, Scientific Agricultural Research Center of Dara'a, GCSAR, Syria. The results showed that sufficient variability was present among the genotypes for all the characters studied. The component of genotypic variance of characters like number of primary branches per plant, number of pods per plant, 100-seed weight, biological yield, harvest index, and seed yield was higher than the environmental variance component; indicating that the genotypic component was the major contributor to total or phenotypic variance. Generally, the values of PCV were higher than the corresponding ones of GCV for all the characters, but in many cases, both values differed only slightly. Characters like number of primary branches per plant, number of pods per plant, biological yield and seed yield have recorded accompanied high estimates of GCV, heritability and genetic advance over character mean. The seed yield showed positive and highly significant associations with number of primary branches per plant and biological yield at the both genotypic and phenotypic levels. The highest positive direct effects have belonged to number of primary branches per plant followed by plant height and days to 50 % flowering; suggesting the importance of these characters and necessity of adoption them as selection criteria for seed yield improvement. [ABSTRACT FROM AUTHOR]