International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2022 - IJCMAS--ICV 2022: 95.28 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020] For more details click here

Login as a Reviewer

See Guidelines to Authors
Current Issues
Download Publication Certificate

Original Research Articles                      Volume : 8, Issue:6, June, 2019

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(6): 2450-2455

Transgressive Segregation for Yield and Its Component Traits in Rice (Oryza sativa L.)
Reddyyamini1, K. Hariprasad Reddy1, V. Lakshmi Narayana Reddy1,Ramesh Babu1 and P. Sudhakar2
1Department of Genetics and Plant Breeding, S.V. Agricultural College,Tirupati, ANGRAU, AP, India
2Department of Crop Physiology, S.V. Agricultural College, Tirupati, ANGRAU, AP, India
*Corresponding author

Transgressive segregation produces hybrid progeny phenotypes that exceed the parental phenotypes. Unlike heterosis, extreme phenotypes caused by transgressive segregation are heritably stable. Maximum genetic variation in F2 generation provides the first opportunity for selection of individual plants, any one of which may end up into a new cultivar. F2 plants that surpassed the parental limits were observed in both the crosses for all the traits viz., plant height, number of panicles per plant, panicle length, number of grains per panicle, spikelet fertility, biomass per plant, grain yield per plant, harvest index and 1000 grain weight. High frequency of favourable transgressive segregants were observed for plant height and number of grains per panicle in the cross between BPT5204 and NLR33892, whereas BPT5204 x NLR33892 cross recorded higher number of desirable transgressive segregants spikelet fertility. Polygenic inheritance and high frequencies of favourable transgressive segregants for yield and its component traits indicates there is a lot of scope to bring in beneficial alleles into a single genotype through careful selection in later generations.

Keywords: Rice (Oryza sativa L.), Transgressive segregants

Download this article as Download

How to cite this article:

Reddyyamini, B., K. Hariprasad Reddy, V. Lakshmi Narayana Reddy, P. Ramesh Babu and Sudhakar, P. 2019. Transgressive Segregation for Yield and Its Component Traits in Rice (Oryza sativa L.).Int.J.Curr.Microbiol.App.Sci. 8(6): 2450-2455. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.