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Exploitation of commercial heterosis for economic traits in China aster [Callistephus chinensis (L.) Nees.]

The present study was conducted at research block of Floriculture and Landscape Architecture, College of Horticulture, Mudigere during 2016-19. | Int.J.Curr.Microbiol.App.Sci 2020 9 6 1620-1628 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 9 Number 6 2020 Journal homepage http www.ijcmas.com Original Research Article https doi.org 10.20546 ijcmas.2020.906.200 Exploitation of Commercial Heterosis for Economic Traits in China Aster Callistephus chinensis L. Nees. S.K. Nataraj1 G.K. Seetharamu2 V. Srinivasa1 Balaji S. Kulkarni3 Rajiv Kumar4 D. Lakshmana R. Venugopalan4 and M. Munikrishnappa2 1 College of Horticulture Mudigere UAHS Shivamogga India 2 College of Horticulture GKVK Campus UHS Bagalkot India 3 College of Horticulture Bagalkote UHS Bagalkot India 4 ICAR-Indian Institute of Horticulture Rsearch Bengaluru India Corresponding author ABSTRACT Diallel set involving ten parents without reciprocals and forty five hybrids of China aster Callistephus chinensis L. Nees were evaluated to analyse for the magnitude commercial heterosis for economic traits at the Keywords Department of Floriculture and Landscape Architecture College of Commercial Horticulture Mudigere. Appreciable heterosis was observed for all the heterosis Economic characters and the performance of F1 hybrids was better than top parent. traits China aster Quality Yield The overall maximum positive significant heterosis for yield in terms of number of flowers per plant was observed in Local Pink Local White Article Info 18.27 Local Violet AAC-1 15.28 for cut flowers weight of flowers Accepted per plant PG Violet Arka Poornima for loose flower overcommercial 18 May 2020 heterosis. Negatively heterotic crosses like Local Pink Local Violet - Available Online 10 June 2020 14.69 for days to 50 flowering are important to exploit heterosis for earliness in China aster. The F1 hybrids Local Violet x AAC-1 Local Pink Local White and PG Violet Arka Poornima with high yield potential has the potential for commercial cultivation after further evaluation Introduction meaning most beautiful and Stephus a crown is .