Maize Stress Breeding and Genetics: Combining Ability Analysis for Maize Breeding - Couverture souple

Malook, Saif Ul; Ahsan, Muhammad

 
9783659633478: Maize Stress Breeding and Genetics: Combining Ability Analysis for Maize Breeding
Couverture souple
ISBN 10 : 365963347X ISBN 13 : 9783659633478
Editeur : LAP LAMBERT Academic Publishing, 2014

Synopsis

Thirty inbreeding lines of Zea mays were screened in a glasshouse. Eight best performing lines were selected based on nine traits screened to cross with testers. The resulting F1 hybrids were screened in the field for their performance. Root and shoot length ratio, fresh shoot weight, dry root weight, and dry shoot weight were the most important traits to be used as criteria in selecting drought tolerance maize genotypes. Principal component analysis suggested that K55TMS, OH3A54, W187R, A556, WA3748, WM13RA and A545 performed the best under normal and drought conditions. High heritability and genetic advance was found for plant height, 100-grain weight, grain rows per plant and grain yield per plant, suggesting that selection of high yielding maize genotypes is possible through this approach. High specific combining ability of W64SP, A495, A509 and A50-2 suggested pre-screening of inbred lines that the inbred lines may be an efficient approach to develop higher yielding maize hybrids through heterosis breeding under drought.

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Présentation de l'éditeur

Thirty inbreeding lines of Zea mays were screened in a glasshouse. Eight best performing lines were selected based on nine traits screened to cross with testers. The resulting F1 hybrids were screened in the field for their performance. Root and shoot length ratio, fresh shoot weight, dry root weight, and dry shoot weight were the most important traits to be used as criteria in selecting drought tolerance maize genotypes. Principal component analysis suggested that K55TMS, OH3A54, W187R, A556, WA3748, WM13RA and A545 performed the best under normal and drought conditions. High heritability and genetic advance was found for plant height, 100-grain weight, grain rows per plant and grain yield per plant, suggesting that selection of high yielding maize genotypes is possible through this approach. High specific combining ability of W64SP, A495, A509 and A50-2 suggested pre-screening of inbred lines that the inbred lines may be an efficient approach to develop higher yielding maize hybrids through heterosis breeding under drought.

Biographie de l'auteur

Plant Breeding and Genetics is Science and art. I have strong experience in Crop Management, cotton and maize breeding from Ayub Agriculture Research Institute. I did master in Plant Breeding and Genetics. Currently, I am working as a Lecturer Biology in Post Graduate College Burewala.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2014
Langue
anglais
ISBN 10 
365963347X
ISBN 13 
9783659633478
Reliure
Broché
Nombre de pages
120
Coordonnées du fabricant
non disponible
Personne responsable
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