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Weedy Rice (Oryza sativa f. spontanea): Weedy Rice (Oryza sativa f. spontanea): Origin and Distribution Patterns in Sri Lanka - Couverture souple

Weerakoon, Shyama

 
9786134976404: Weedy Rice (Oryza sativa f. spontanea): Weedy Rice (Oryza sativa f. spontanea): Origin and Distribution Patterns in Sri Lanka
Couverture souple
ISBN 10 : 6134976407 ISBN 13 : 9786134976404
Editeur : LAP LAMBERT Academic Publishing, 2018

Synopsis

Weedy rice (Oryza sativa f. spontanea) is one of the most nuisance weeds, referred as “red rice” possess higher morphological variability and varying degrees of similarities to wild and cultivated rice. Close similarity between weedy and cultivated rice prevents use of selective herbicides in controlling weedy rice. Weedy rice affects both quantity and quality of national rice production. Efforts were made to understand morphological and physiological properties of weedy rice and its epidemiology to design controlling methods and to disseminate information to farmers. Weedy rice is strongly characterized by seed shattering and dormancy characters. Long term sympatric distribution has led to similarities between weedy and cultivated rice through natural hybridization and introgression. Major wild rice species (O. nivara and O. rufipogon) are also distributed all over the country. The content of the book discusses levels of genetic diversity of weedy rice populations in different climatic zones in Sri Lanka through agro-morphological and molecular studies and explore the possible origin of weedy rice by comparing the genetic relationships with cultivated rice and wild rice varieties.

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

Présentation de l'éditeur

Weedy rice (Oryza sativa f. spontanea) is one of the most nuisance weeds, referred as “red rice” possess higher morphological variability and varying degrees of similarities to wild and cultivated rice. Close similarity between weedy and cultivated rice prevents use of selective herbicides in controlling weedy rice. Weedy rice affects both quantity and quality of national rice production. Efforts were made to understand morphological and physiological properties of weedy rice and its epidemiology to design controlling methods and to disseminate information to farmers. Weedy rice is strongly characterized by seed shattering and dormancy characters. Long term sympatric distribution has led to similarities between weedy and cultivated rice through natural hybridization and introgression. Major wild rice species (O. nivara and O. rufipogon) are also distributed all over the country. The content of the book discusses levels of genetic diversity of weedy rice populations in different climatic zones in Sri Lanka through agro-morphological and molecular studies and explore the possible origin of weedy rice by comparing the genetic relationships with cultivated rice and wild rice varieties.

Biographie de l'auteur

Prof. Shyama Weerakoon graduated from Uni. of Colombo, Sri Lanka following a B.Sc. Special Degree in Botany and received Ph.D. in Genetics and Plant Breeding from Uni. of Western Australia in Australia, and completed post-doctoral studies at the same university. Currently working as a Professor in Botany at the Open University of Sri Lanka.

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
2018
Langue
anglais
ISBN 10 
6134976407
ISBN 13 
9786134976404
Reliure
Broché
Nombre de pages
80
Coordonnées du fabricant
non disponible
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