cytomorphological characterization of wide cross derivatives in Rice: Wide cross derivatives in Rice - Couverture souple

Ali, Hamid; Abbasi, Fida Muhammad; Ahmad, Israr

 
9783846515747: cytomorphological characterization of wide cross derivatives in Rice: Wide cross derivatives in Rice
Couverture souple
ISBN 10 : 3846515744 ISBN 13 : 9783846515747
Editeur : LAP LAMBERT Academic Publishing, 2011

Synopsis

Wild species of Rice offer an important source of variability for improvement of cultivated Rice.Wide hybridization is the only way to transfer useful genes from wild species into cultivated Rice.In order to utilize the resistant potential of Oryza rufipogon to various biotic and abiotic stresses, this species was crossed with cultivated varieties of Oryza sativa. The crossability between O. sativa and O. rufipogon varied from 17.5-33 (%). The highest crossability was observed in IR-6/O. rufipogon (33%) and least in KS-282/O. rufipogon (17.5%). Based on crossability, IR-6 showed a close affinity with O. rufipogon.All the F1 hybrids were intermadiate in plant morphology between the two parents.The F1 hybrids showed both mid parent and high parent hetrosis for various quantitative traits. All the F1 hybrids showed normal meiosis with remarkably high chromosome pairing. Therefore favorable alleles can be easily introgressed from the wild O.rufipogon into cultivatd Rice O.Sativa.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Wild species of Rice offer an important source of variability for improvement of cultivated Rice.Wide hybridization is the only way to transfer useful genes from wild species into cultivated Rice.In order to utilize the resistant potential of Oryza rufipogon to various biotic and abiotic stresses, this species was crossed with cultivated varieties of Oryza sativa. The crossability between O. sativa and O. rufipogon varied from 17.5-33 (%). The highest crossability was observed in IR-6/O. rufipogon (33%) and least in KS-282/O. rufipogon (17.5%). Based on crossability, IR-6 showed a close affinity with O. rufipogon.All the F1 hybrids were intermadiate in plant morphology between the two parents.The F1 hybrids showed both mid parent and high parent hetrosis for various quantitative traits. All the F1 hybrids showed normal meiosis with remarkably high chromosome pairing. Therefore favorable alleles can be easily introgressed from the wild O.rufipogon into cultivatd Rice O.Sativa.

Biographie de l'auteur

I Mr.Hamid Ali belong to district Upper Dir, Pakistan. I had completed my BS Hons in Biotechnology from University of Malakand Pakistan. I did master of Philosophy (M.Phil)in Genetics from Hazara University Mansehra Pakistan in 2011.Currently I am Ph.D Scholar in Genetics department of Hazara University Mansehra Pakistan.

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
2011
Langue
anglais
ISBN 10 
3846515744
ISBN 13 
9783846515747
Reliure
Broché
Nombre de pages
120
Coordonnées du fabricant
non disponible
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