11 閉花受粉性大麦の形態的特徴とオーキシン投与に対する反応

概要

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Most Japanese two-rowed barley (Hordeum vulgare L.) show cleistogamy. To clarify the physiological character, morphological and hormonal studies were conducted using near isogenic lines of cv. Misatogolden for cleistogamy-chasmogamy prepared from initial crossing between cv. Misatogolden (cleistogamy) and cv. Satuki nijyo (chasmogamy). No clear differences were observed both in male and female flower in each line, however, a lodicule shape and size of cleistogamous line were clearly different from chasmogamous line. Segregation of cleistogamy and small lodicule character was also well corresponded, therefore, it is suggested that clesitogamy depend on the lodicule size. By auxin treatment of excited ear, flower opening was promoted in chasmogamous line, but not in clesitogamous line. Cleistogamy may have a certain relationship to auxin.
植物化学調節学会の論文
1999-10-01