Articles
Appraisal of agronomic, seed yield and reproductive traits unveiled breeding potential of Indian cauliflower lines
Article number
1427_3
Pages
17 – 24
Language
English
Abstract
Breeding to enhance biodiversity by developing diverse sets of genetic materials is an important element in achieving sustainable agriculture and developing varieties for organic food systems.
The successful exploitation of genetic material depends upon their phenotyping for an array of traits.
Thus, different sets of cytolines in Indian cauliflower have been developed through backcross breeding program during the past two decades at ICAR-Indian Agricultural Research Institute, Regional Station, Katrain, Himachal Pradesh, India.
About 50 lines were characterized for their reproductive and seed yield related traits.
The seedlings were planted in a plot size of 3×3 m with three replications.
The variance analysis and principal component analysis (PCA) revealed presence of high amount of genetic variability.
The results revealed that Indian cauliflower lines, Ogu402-6A, Ogu76-33A can be utilized for the generation of early maturing hybrid varieties.
To develop the hybrids with compact curd, Ogu13-85-6A and Ogu309-2A lines can be potentially exploited.
High heritability indicated the scope of selection in crop improvement.
All the lines under study had normal ovary and were devoid of functional pollen grains.
The lines with more numbers of siliqua per plant were also identified.
Wide variability was present among the lines with respect to seed yield per plant.
AS per PCA the seed yield and numbers of siliqua contributed maximum in total variation.
The study paves the way for formulating the strategy to breed cultivars for sustainable agriculture and enhancing food and nutritional security.
The successful exploitation of genetic material depends upon their phenotyping for an array of traits.
Thus, different sets of cytolines in Indian cauliflower have been developed through backcross breeding program during the past two decades at ICAR-Indian Agricultural Research Institute, Regional Station, Katrain, Himachal Pradesh, India.
About 50 lines were characterized for their reproductive and seed yield related traits.
The seedlings were planted in a plot size of 3×3 m with three replications.
The variance analysis and principal component analysis (PCA) revealed presence of high amount of genetic variability.
The results revealed that Indian cauliflower lines, Ogu402-6A, Ogu76-33A can be utilized for the generation of early maturing hybrid varieties.
To develop the hybrids with compact curd, Ogu13-85-6A and Ogu309-2A lines can be potentially exploited.
High heritability indicated the scope of selection in crop improvement.
All the lines under study had normal ovary and were devoid of functional pollen grains.
The lines with more numbers of siliqua per plant were also identified.
Wide variability was present among the lines with respect to seed yield per plant.
AS per PCA the seed yield and numbers of siliqua contributed maximum in total variation.
The study paves the way for formulating the strategy to breed cultivars for sustainable agriculture and enhancing food and nutritional security.
Publication
Authors
S. Singh, S. Priyadarsini, S.S. Dey, R. Bhatia, A. Nandi
Keywords
cauliflower, cytolines, flowering traits, hybrids, organic agriculture, seed yield
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