<学術雑誌論文>
Genotypic differences in root traits of rice (Oryza sativa L.) seedlings grown under different soil environments.

作成者
本文言語
出版者
発行日
収録物名
開始ページ
終了ページ
出版タイプ
アクセス権
権利関係
関連DOI
関連URI
関連情報
概要 We investigated mainly root traits of rice (Oryza sativa L.) seedlings grown under four soil conditions (i.e. anaerobic, aerobic, low and high soil density) in thin and long transparent polyvinyl chlo...ride tubes for 21 days. Using 70 rice varieties from four agricultural ecotypes (i.e. japonica upland (JU), japonica lowland (JL), indica upland (IU), and indica lowland (IL)), we examined the effects of genotypes, environment and their interaction on seminal root length (SRL), seminal root thickness (SRT), number of crown roots (NCR), root and shoot dry weight (RDW and SDW) and root/shoot ratio (R/S ratio). The significant effects of genotype, environment and their interaction on all the traits were detected. Rice varieties could be clearly classified into their own ecotypes by a combined principle component analysis (PCA) for NCR, SRT, and SDW. Seventy rice varieties could be separated into upland and lowland varieties based on the scores of the first principle component (PC) and, among upland varieties, JU varieties could be separated from IU varieties based on the scores of the second PC. JU varieties had longer and thicker seminal roots than the other varieties in aerobic soil conditions, indicating that these varieties may be more suitable for aerobic soil conditions from the view point of the seedling establishment.続きを見る

本文ファイル

pdf Genotypic differences in root traits of rice (Oryza sativa L.) seedlings grown under differen pdf 377 KB 308  

詳細

レコードID
査読有無
主題
ISSN
eISSN
DOI
登録日 2017.02.14
更新日 2020.10.13

この資料を見た人はこんな資料も見ています