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Effect of plant growth regulators on sex expression, fruit setting, seed yield and quality in the parental lines for hybrid seed production in bitter gourd (Momordica charantia)

Indian Agricultural Research Journals

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Title Effect of plant growth regulators on sex expression, fruit setting, seed yield and quality in the parental lines for hybrid seed production in bitter gourd (Momordica charantia)
 
Creator NAGAMANI, S
BASU, SUDIPTA
SINGH, SUKHBIR
LAL, S K
BEHERA, T K
CHAKRABARTY, S K
TALUKDAR, AKSHAY
 
Subject Fruit setting, Fruit yield, Growth regulators, Hybrid seed production, Sex expression, Seed yield, Seed quality
 
Description Effect of plant growth regulators on vegetative growth, sex expression,fruit setting, seed yield and quality was studied for hybrid seed production in the parental lines of bitter gourd (Momordica charantia L.) hybrids,Pusa hybrid 1 and Pusa hybrid 2 in rainy and spring-summer season. Plant growth regulators namely GA3 @ 50 ppm, NAA @ 200 ppm, maleic hydrazide @ 100 ppm, etherel @ 50 ppm were sprayed at three leaf and tendril initiation stage. The results showed that application of GA3 significantly enhanced vine length, number of branches and nodes/vine, fruiting, seed yield and quality in the parental lines in both the seasons.The plants sprayed with growth regulators showed induction of female flowers at lower nodes with 3-5 more pistillate flowers per vine and higher sex ratio as compared to unsprayed control. In manually pollinated flowers, plants sprayed with GA3@ 50 ppm had higher fruit and seed setting, fruit weight and hybrid seed yield. All the growth regulators had positive influence on vegetative, flowering and fruit traits in both the seasons but effect of growth regulators were more evident in rainy than springsummer season. GA3 @ 50 ppm, NAA @ 200 ppm, etherel @ 50 ppm were effective for enhancement in vegetative growth, fruit and seed yield and modification of sex expression but GA3 @ 50 ppm sprayed twice at three leaf and tendril initiation stage was most effective for hybrid seed production of bitter gourd.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-09-08
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/51605
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 9 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/51605/21813
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences