Analysis of Genetic Variability, Heritability and Genetic Advance for Yield and Yield Associated Traits in Rice (Oryza Sativa L.)

Kumar, Rajneesh; Ram, Mukh; Heera, Prashanth Kumar; Murali, S.; kumar, Arun Sai

doi:10.21203/rs.3.rs-3251636/v1

2023

DOI: 10.21203/rs.3.rs-3251636/v1

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Analysis of Genetic Variability, Heritability and Genetic Advance for Yield and Yield Associated Traits in Rice (Oryza Sativa L.)

Rajneesh Kumar,

Mukh Ram,

Prashanth Kumar Heera

et al.

Abstract: The present investigation was conducted using 27-rice germplasm for the thirteen traits studied at the agriculture research farm, Department of Genetics and Plant Breeding, School of Agriculture, Lovely Professional University, Punjab during the kharif season 2022. A Randomized Block Design (RBD) with three replications were used to study genotypic and phenotypic variances, heritability, GCV, PCV, genetic advance, and genetic advance as a percentage of the mean (GAM %) for all the yield contributing traits. Ha… Show more

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2024

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Cited by 2 publications

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Evaluation of Newly Bred Zinc and Iron Enriched Rice Genotypes for Cultivation Under Aerobic Condition Using Genetic Parameters: Implication on Drought Management

H. P,

Vinutha,

Shashidhar

et al. 2024

Curr Agri Res Jour

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This research focused on the evaluation of twelve newly bred rice genotypes with diverse morphological traits under aerobic cultivation to develop strategies for water conservation while maintaining grain productivity and quality. The experiment was conducted during the summer season of 2016, employing a Randomized Complete Block Design (RCBD) with wetland cultivation as a control. For analysis, various vegetative and reproductive traits namely, Plant height, Number of Tillers, Shoot Weight, Days to 50% flowering, Days to Maturity, Number of Productive Tillers, Panicle Length, Grain Weight, Length of the seed, Breadth of the seed, Ratio of Length and Breadth of the Seed, and Test weight of 100 seeds were recorded. Data on analysis of variance revealed the significant difference for days to flowering, maturity, plant height, panicle length, test weight, and grain yield under aerobic and wetland cultivation methods during the summer season, 2016, suggesting these traits are under high genetic control. Genetic parameters such as percentage of GCV, PCV, Heritability, and GAM were estimated across 13 parameters comprising vegetative and reproductive characters. The findings suggest a considerable amount of genetic variability for most traits, providing a foundation for the potential implementation of an effective selection procedure in breeding new rice varieties within the selected genotypes.

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Evaluation of Newly Bred Zinc and Iron Enriched Rice Genotypes for Cultivation Under Aerobic Condition Using Genetic Parameters: Implication on Drought Management

H. P,

Vinutha,

Shashidhar

et al. 2024

Curr Agri Res Jour

View full text Add to dashboard Cite

show abstract

An insight into variability and association among yield and its components under alkalinity and inland salinity stress in rice (Oryza sativa L.)

Gaddam,

Katragadda,

Nelagundarashi

et al. 2024

Oryza

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An experiment was conducted to study the variability, correlation, direct and indirect effects of yield and its attributing traits in 36 genotypes and to identify suitable parents for breeding of alkalinity and inland salinity stress tolerant lines at ARS, Kampasagar, Nalgonda during rabi, 2021-22. Analysis of variance revealed plenteous quantum of variation among the tested genotypes. Wide variation, high PCV, GCV, heritability and genetic advance were observed for seedling mortality, sterility percentage and number of filled grains per panicle. Number of productive tillers/hill and number of filled grains per panicle had a positive and significant correlation with yield whereas seedling mortality and sterility percentage had a negative and significant association with yield. Path analysis inferred that traits such as number of productive tillers/hill, number of grains per panicle and 1000 grain weight had a positive direct effect on yield. Hence,priority should be given to the above mentioned traits to develop alkalinity and inland saline tolerant rice cultivars. Lines CT118911, Sahel177, M202, and KPS10654 were found promising to be utilized as tolerant parents in the breeding programmes.

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Analysis of Genetic Variability, Heritability and Genetic Advance for Yield and Yield Associated Traits in Rice (Oryza Sativa L.)

Cited by 2 publications

References 9 publications

Evaluation of Newly Bred Zinc and Iron Enriched Rice Genotypes for Cultivation Under Aerobic Condition Using Genetic Parameters: Implication on Drought Management

Evaluation of Newly Bred Zinc and Iron Enriched Rice Genotypes for Cultivation Under Aerobic Condition Using Genetic Parameters: Implication on Drought Management

An insight into variability and association among yield and its components under alkalinity and inland salinity stress in rice (Oryza sativa L.)

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