Vol. 6, Issue 4 (2018)
Field evaluation for yield and component traits of advanced breeding lines of rice (Oryza sativa L.)
Author(s): Shoukat A Rather, Indra Deo and Neha Joshi
Abstract: Characterization of germplasm is essential pre-requisite for any crop improvement programme. The present investigation was carried out to evaluate 44 advanced breeding lines of rice for yield and yield contributing characters over two years, Kharif 2015 and 2016. The investigation revealed significant differences among genotypes for most of the characters over both the years. Pooled analysis of the data revealed significant genotype x environment interactions. Over the years, genotypes TN1, UPRI 2013-14, Pant Dhan 4 and UPR 3819-9-1-1-1 were most dwarf, UPR 3837-7-2-1-6, UPR 3926-12-1-1, UPR 3819-9-1-1-1 and UPR 3926-6-1-1 were earliest to 50 % flowering, UPR 3837-7-2-1-6, UPR 3819-9-1-1-1, UPR 3926-6-1-1 and UPR 3837-2-2-1-3 were earliest in maturity. Number of total tillers per plant was highest in Pant Dhan 4, UPR 3907-20-2-1, UPR 3930-18-1-1 and UPR 3929-8-1-1 genotypes. Whereas, number of effective tillers per plant was highest in UPR 3907-2-2-1, UPR 3907-20-2-1, UPR 3930-18-1-1 and UPRI 2013-14 genotypes. Leaf length was highest in UPRI 2013-1, UPR 3951-1-2-1, UPR 3943-8-1-1 and UPR 3837-7-2-1-1 genotypes. Genotypes UPR 3837-7-2-1-1, UPR 3876-5-1-1-1, UPR 3837-7-2-1-6 and UPR 3838-1-1-1-1 exhibited most wide leaves. Genotypes UPR 3926-12-1-1, UPR 3837-7-2-1-1, Pusa Basmati 1 and UPR 3947-23-2-3 exhibited longer panicles as compared to others. Test weight was highest for UPR 3906-18-2-1, UPRI 2013-14, UPR 3837-2-2-1-3 and UPR 3860-6-1-1-1-1 genotypes. Grain yield per plant was recorded highest in UPR 3906-18-2-1, UPR 3837-7-2-1-1, UPRI 2013-4 and UPR 3819-9-1-1-1 genotypes over the years. The desirable genotypes identified during the study can be either crossed with each other to introgess different traits in one genotype or can be subjected to testing under multi-locational trials for their release as commercial varieties.
Pages: 1860-1866 | 343 Views 49 Downloads
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How to cite this article:
Shoukat A Rather, Indra Deo, Neha Joshi. Field evaluation for yield and component traits of advanced breeding lines of rice (Oryza sativa L.). Int J Chem Stud 2018;6(4):1860-1866.
