Line x tester analysis of combining ability in new genotypes of bivoltine silkworm (Bombyx mori)
Indian Agricultural Research Journals
View Archive InfoField | Value | |
Title |
Line x tester analysis of combining ability in new genotypes of bivoltine silkworm (Bombyx mori)
|
|
Creator |
RAJALAKSHMI, E
CHAUHAN, T P S THIAGARAJAN, V LAKSHMANAN, V KAMBLE, C K |
|
Subject |
hybrid, tester, bivoltine silkworm, Bombyx mori, cocoon characters
|
|
Description |
A line X tester analysis was carried out, involving 8 newly evolved genotypes, 2 testers and 16 hybrids of bivoltinesilkworm (Bombyx mori L.) for assessing the combining ability in respect of cocoon yield by number and weight, single-cocoon weight, single-shell weight, shell ratio (%) and filament length. All the characters studied were controlled byadditive but predominantly by non-additive gene action, 'CNR 14' with positive general combining ability (gca) effectfor all the 6 characters studied proved the best general combiner, followed by 'CNR 12' and 'CNR 13' for 5 characters,'CNR 15' for 4 characters and 'CNR 16' for 3 characters, 'CNR 13' and 'CNR 16' for single-cocoon weight, 'CNR 12', 'CNR 14' and 'CNR 16' for single-shell weight, 'CNR 12' and 'CNR 15' for shell ratio (%)and 'CNR 14' for filament length were found to be the best general combiners with highly significant positive gca effects. 'CNR 16' X 'NB 4D2' was considered the best hybrid, as it recorded signiticant effects of specific combining ability (sea) for 3 characters out of the 6 studied.
|
|
Publisher |
The Indian Journal of Agricultural Sciences
|
|
Contributor |
—
|
|
Date |
2013-05-17
|
|
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/29925
|
|
Source |
The Indian Journal of Agricultural Sciences; Vol 67, No 7 (1997)
0019-5022 |
|
Language |
eng
|
|
Relation |
http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/29925/13500
|
|
Rights |
Copyright (c) 2014 The Indian Journal of Agricultural Sciences
|
|