Background: The production of rice needs to grow as this is one of the major objective in plant improvement program to fulfill the requirement of the rapidly growing population. Objective and Methods: The field experiment was conducted to study character association among yield and its attributes among 58 rice genotypes at Indira Gandhi Krishi Vishwavidyalaya, College of Agriculture, Raipur (C.G.) to know the relationship among characters. Results: it is found out that Traits like panicle weight per plant, filled spikelets per panicle, harvest index, and biological yield per plant are having a high direct effect and significant correlation with grain yield per plant, and traits like milled grain length-width ratio, hulling %, and alkali spreading value are having a high direct effect and significant correlation with head rice recovery. Conclusions: Direct selection based on these traits for improvement of rice grain yield and grain quality can be effective.
Aims: To study morphological and genetic diversity among 100 Linseed (Linseed usitassimum L.) germplasm accessions. Study Design: Augmented RBD Design in five blocks with four checks. Place and Duration of Study: College of Agriculture, IGKV, Raipur, Chhattisgarh. During rabi 2020-2021 and rabi 2021-2022. Methodology: A total of 100 linseed germplasm accessions and four standard checks were studied by examining 10 quantitative traits which contribute to yield and its attributing traits. And observations recorded. Results: Outcome of the study revealed that analysis of variance for 10 quantitative characters showed differences for various characters. Results from genetic variability analysis state that the highest GCV/PCV was recorded for the traits 50% flowering, secondary branches plant-1, no. of capsules plant-1, and seed yield plant-1. Highest heritability was observed for all the traits under study. Highest heritability coupled with the highest genetic advance as percent was reported for 50% flowering, followed by secondary branches plant-1, no. of capsules plant-1, 1000 seed weight (g), and seed yield plant-1. Seven accessions such as LCK-9406, NL-126, Sumerpur Local, SJKO-8, L-103, EC-397752, R.S.-6 were recorded as having the highest oil content (%) greater than >42%. The highest seed yield plant-1 along with the highest oil content (%) was recorded in four accessions such as Sumerpur Local, EC-397752, LCK-9406, SJKO-8. Conclusion: The linseed accessions used in the current study showed significant variability for most of the characters. Observed accessions having the highest seed yield (g) and oil content (%) can be further utilized in the breeding programs based on breeder requirement.
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