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Journal of Genetics

, 98:24 | Cite as

Estimation of genetic architecture of biochemical traits in mid–late cauliflower (Brassica oleracea L. var. botrytis) under sub-temperate conditions of north western Himalayas

  • Arti VermaEmail author
  • Yudhvir Singh
Research Article
  • 18 Downloads

Abstract

Understanding the genetic basis of biochemical traits of different cauliflower genotypes is essential for planning the effective breeding strategies in genetic improvement. To determine the mode of inheritance of dry matter content and biochemical traits, we made crosses using four genotypes of cauliflower, and obtained \(\hbox {F}_{1}\), \(\hbox {F}_{2}\), \(\hbox {BC}_{1}\) and \(\hbox {BC}_{2}\) populations. The six generations obtained were replicated thrice and evaluated in a randomized block design. The generation mean analysis of data showed the presence of duplicate epistasis in dry matter content which suggested the adoption of reciprocal recurrent selection and biparental mating for the improvement of the trait. However, in case of vitamin C, complementary type of epistasis was reported in three crosses, which indicated the exploitation of heterosis breeding of enhancing vitamin C. It can be concluded that the role of gene action was in general more complex for the traits studied. The nature and magnitude of gene effects varies character-wise as well as cross-wise. Hence, for the improvement of dry matter content and biochemical traits in a particular cross, a specific breeding strategy has to be implemented.

Keywords

biochemical traits cauliflower dry matter epistasis generation mean analysis Brassica oleracea L. var. botrytis 

Notes

Acknowledgements

We gratefully acknowledge our sincere gratitude to the CSK HPKV, Palampur, India and the Department of Science and Technology (DST) for the support/fellowship while undertaking this research.

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Vegetable Science and FloricultureCSK HPKVPalampurIndia
  2. 2.Punjab Agricultural UniversityMansaIndia

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