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International Journal of Plant Breeding and Genetics
  Year: 2012 | Volume: 6 | Issue: 4 | Page No.: 252-255
DOI: 10.3923/ijpbg.2012.252.255
Occurrence of Trifid Stigma Morphotype in a Maintainer Line of Rice (Oryza sativa L.)
Akhilesh Kumar Singh, Pawan Khera, Rahul Priyadarshi, Virupaxagouda Patil, Manisha Dhasmana and Vinay Shenoy

Abstract:
Morphological characteristics of florets are of utmost importance in increasing the outcrossing rate in hybrid rice seed production. Among the different floral traits, stigma exsertion is considered to be of highest significance. Normally rice has stigma with two branches mentioned as bifid stigma. We reported a new natural mutant morphotype of stigma having an extra branch (hereafter mentioned as trifid stigma) which was identified in an indica maintainer line of rice. It occurs at a frequency of 0-35% in the population. Morphometric data showed that the extra branch is shorter than the other two branches of trifid stigma which were shorter than the mean length of bifid stigma. The possible use of the new variant in hybrid rice breeding is discussed.
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How to cite this article:

Akhilesh Kumar Singh, Pawan Khera, Rahul Priyadarshi, Virupaxagouda Patil, Manisha Dhasmana and Vinay Shenoy, 2012. Occurrence of Trifid Stigma Morphotype in a Maintainer Line of Rice (Oryza sativa L.). International Journal of Plant Breeding and Genetics, 6: 252-255.

DOI: 10.3923/ijpbg.2012.252.255

URL: https://scialert.net/abstract/?doi=ijpbg.2012.252.255

 
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