Toll Free Helpline (India): 1800 1234 070

Rest of World: +91-9810852116

Free Publication Certificate

Vol. 9, Issue 10 (2020)

Study of heterosis and inbreeding depression in F2 generation of rice (Oryza Sativa L.)

Author(s):
AG Singh and PB Patel
Abstract:
The experiment was carried out during summer and kharif 2018-19 at Main Rice Research Centre, Navsari Agricultural University, Navsari. Six diversified elite lines of rice (IET-24772, IET-24783, GNR-2, GNR-3, GR-11 and GR-15) were used to study heterosis and inbreeding depression for grain yield and its components in three crosses of rice. Heterosis of hybrids over mid parent and better parent varied from cross to cross and character to character. Out of three hybrids studied, only cross-II exhibited significantly positive relative heterosis and heterobeltiosis for grain yield per plant under present study. The highest relative heterosis of 25.08 % and heterobeltiosis of 24.48 % were exhibited by cross GNR-2 x GNR-3. This cross also showed significantly positive relative heterosis for the important yield contributing components i.e., productive tillers per plant while significantly negative relative heterosis was observed for 100 grain weight.
Pages: 468-472  |  312 Views  71 Downloads


The Pharma Innovation Journal
How to cite this article:
AG Singh, PB Patel. Study of heterosis and inbreeding depression in F2 generation of rice (Oryza Sativa L.). Pharma Innovation 2020;9(10):468-472.

Call for book chapter