Assessment of Genetic Variability and Character Association for Yield and Its Contributing Components in Mid Maturing Indian Cauliflower

Vanlalneihi, B.; Saha, Partha; Srivastava, Madhulika

doi:10.20546/ijcmas.2017.611.343

Cited by 2 publications

(1 citation statement)

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“…Stalk length, net curd weight, curd yield per hectare, gross plant weight, marketable curd weight, harvest index, and curd size index had a sufficient magnitude of PCV and GCV. Vanlalneihi et al [34] studied genetic variability in 15 Indian cauliflower genotypes for a variety of economically important characters and found high heritability and high genetic advance for plant height, leaf width, leaf length, leaves/plant, curd diameter, curd angle, net curd weight, and marketable curd weight, indicating the presence of additive gene action. Therefore, direct selection may aid in the enhancement of these characters.…”

Section: Genetic Variability Parametersmentioning

confidence: 99%

Genetic Studies for Selection Parameters in Cauliflower (Brassica oleracea L. var. botrytis): A Review

Singh

Sharma

Ranga

et al. 2022

IJPSS

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The constant availability of high-yielding and well-adapted varieties is made possible by a vigorous breeding program and it is the first and least expensive input in improving the output of any crop. To design breeding methods for the development of a certain crop, it is essential to have a thorough understanding of genetic variations, correlations between various traits, and their direct and indirect contributions to yield. The amount of genetic variability and character outstanding from one generation to the next determine how much a crop may progress genetically. Because phenotypic selection relies on the range of genetic variability available in the population, it is necessary to separate the variability into heritable and non-heritable components. This will increase the reliability of the selection. Curd yield in cauliflower is a complicated trait that is greatly impacted by the environment since it is regulated by several genes. Some of the component qualities may be directly and favourably correlated with the marketable curd weight, making them suitable for use as selection criteria in crop improvement programs. Characters having a strong and positive/desirable correlation to one another would be used to boost yield effectively. The proper weightage for selection purposes is also determined by the proportional contribution of the component qualities to the yield. The level of genetic diversity contained in a specific crop determines the most appropriate varietal development programs.

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Section: Genetic Variability Parametersmentioning

confidence: 99%

Genetic Studies for Selection Parameters in Cauliflower (Brassica oleracea L. var. botrytis): A Review

Singh

Sharma

Ranga

et al. 2022

IJPSS

View full text Add to dashboard Cite

show abstract

Morphological characterization, mean performances, character associations, divergence and disease reaction studies to augment improvement of mid-late and late maturity genotypes of Cauliflower under North-Western Himalayas

Mehta,

Kumar

et al. 2024

Preprint

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Although numerous varieties have been recommended across different agro-climatic zones of Himachal Pradesh, however the information on high yielding genotypes with superior quality and disease resistance is lacking in this state. Diseases like black rot and stalk rot are the main obstacle preventing cauliflower production from being viable in Himachal Pradesh. Therefore, in this investigation, thirty genotypes of cauliflower were evaluated for morphological characters based on DUS, horticultural traits, character associations, genetic divergence and disease reaction to black rot and stalk rot to identify superior genotypes for commercial cultivation. The experiment was designed in Randomized Complete Block Design (RCBD) with three replications. The genotypes were morphologically classified based on twenty one DUS characters. This variation is useful in identification of superior genotypes for inclusion in breeding programmes or direct use as a cultivar. Mean performance of genotypes for various traits disclosed that genotype Pusa Himjyoti recorded the highest marketable curd yield/hectare and genotypes Snowball Super, White Heart, UHF-CAU-1, Early Snowball, UHF-CAU-4, UHF-CAU-8 and KT-18 were determined to be statistically at par with Pusa Himjyoti. All these genotypes have white to snow white curd with self- blanching habit. High heritability along with moderate genetic advance as per cent of mean was showed for net curd weight confirming the occurrence of additive gene action. Correlation coefficient discovered that the number of leaves/plant, plant spread, curd polar diameter, curd equatorial diameter, curd size index, curd solidity, gross plant weight and net curd weight were found to be significantly and positively correlated with marketable curd weight. The maximum positive direct effect on marketable curd weight was contributed by curd equatorial diameter followed by curd polar diameter, net curd weight, curd solidity and number of leaves/plant. Thus, perfection in these traits will lead to higher yield in cauliflower. The D2 analysis grouped the genotypes into three clusters consists maximum genotypes in cluster II. The genotypes were divided into three clusters by the D2 analysis, with cluster II having the highest genotypes. Gross plant weight (32.00%), net curd weight (18.16%), plant height (8.33%) and marketable curd yield (8.21%) were identified as significant traits contributing to divergence. In case of disease reaction studies, no genotype was found resistant to stalk rot but in case of black rot, only one genotype White Heart was found resistant whereas Snowball Super and PSBK-1 showed moderately resistant reaction.

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Assessment of Genetic Variability and Character Association for Yield and Its Contributing Components in Mid Maturing Indian Cauliflower

Cited by 2 publications

References 10 publications

Genetic Studies for Selection Parameters in Cauliflower (Brassica oleracea L. var. botrytis): A Review

Genetic Studies for Selection Parameters in Cauliflower (Brassica oleracea L. var. botrytis): A Review

Morphological characterization, mean performances, character associations, divergence and disease reaction studies to augment improvement of mid-late and late maturity genotypes of Cauliflower under North-Western Himalayas

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