Resistance factors of pecky rice incidence caused by the rice stink bugs ( Leptocorisa chinensis, Nezara viridula ) in rice line CRR-99-95W
Rattachement africain : jp. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Pecky rice incidence caused by rice stink bugs greatly decreases the quality of rice grain and has come a big problem not only in Japan but also many other rice producing countries recently. In this study, antixenosis and tolerance were examined as the factors of resistance to rice stink bugs attack of rice line CRR-99-95 W. Two experiments were conducted to determine a possibility of antixenosis involvement as a factor of the resistance in CRR-99-95 W. The results showed no correlation between the number of Leptocorisa chinensis parasites and pecky rice incidence. Furthermore, no significant difference was found between the sucking frequency of Nezara viridula on mature husks of CRR-99-95 W and that on the check genotypes. These results suggest that CRR-99-95 W does not exhibit antixenosis effect against rice stink bugs. Then, to examine the tolerance factor involved in the resistance mechanism, the husks structures were analyzed. The results showed that the packing ratio of cell wall of the sclerenchyma fibers in the palea tended to be higher in CRR-99-95-W compared to the check genotype. In addition, the width of the hook openness of the palea of CRR-99-95 W was narrower than that of the check genotype. Such morphological characteristic of CRR-99-95 W may play an important role in its resistance against stink bug attack.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- Resistance factors of pecky rice incidence caused by the rice stink bugs ( <i>Leptocorisa chinensis, Nezara viridula</i> ) in rice line CRR-99-95W
- Date Crossref
- 03/03/2022
- Éditeur
- Informa UK Limited
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
-
Nagoya University pays non établi dans la noticeUniversité ou école supérieure
-
Ministry of Agriculture pays non établi dans la noticeOrganisme public
-
Aichi Agricultural Research Center Dissemination Strategy Department pays non établi dans la noticeStructure de recherche
-
Graduate School of Bioagricultural Sciences pays non établi dans la noticeUniversité ou école supérieure
-
Agricultural Extension Center pays non établi dans la noticeInstitution
Nagoya University, Ministry of Agriculture et Dissemination Strategy Department — Aichi Agricultural Research Center, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.