Vol. 6, Issue 6 (2018)
Genetic analysis for extra earliness in rice (Oryza sativa L.) among different age groups
Author(s): Paranthaman M, A Ramalingam, P Arunachalam, C Vanniarajan, S Banumathy and M Maavimani
Abstract: Flowering time is one of the critical factors in the rice cultivars. The basic objective of the present study is the development of very early/ extra early rice cultivars by utilizing various duration of rice genotypes collected from different regions of India. Totally thirty seven rice genotypes were evaluated which includes very early, short, medium, long and very long duration age groups.The genotypes were grouped into 11 diverse clusters. Cluster one with five genotypes i.e., Dhala Heera, Jaldhi dhan-6, Anjali, CB 12593 and ASD 20 had the traits required for earliness with superior mean value viz., Days to panicle initiation (66.429), Days to fifty per cent flowering (72.700) and plant height (91.392). Cluster I also exhibited highest inter cluster distance (64.378) with cluster XI with two genotypes CR 1009 Sub. 1 and GEB 24 had other extreme traits for extra earliness. Hence, hybridization between these seven genotypes will also through Transgressive Segregants which offer scope for further selection.
Pages: 2263-2267 | 316 Views 55 Downloads
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How to cite this article:
Paranthaman M, A Ramalingam, P Arunachalam, C Vanniarajan, S Banumathy, M Maavimani. Genetic analysis for extra earliness in rice (Oryza sativa L.) among different age groups. Int J Chem Stud 2018;6(6):2263-2267.
