Studies on Dormancy in Lilium species

百合属植物休眠的研究

• 批准号: 01560036
• 负责人: OKUBO Hiroshi
• 金额: $ 1.34万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01560036/
• 关键词: abscisic acid; auxin; dormancy; Lilium longiflorum; Lilium speciosum; Lilium concolor; Lilium lancifolium; ユリ属植物; 植物ホルモン

Seasonal changes in leaf emergence during scaling at 20^ﾟ and 12 h daylength and endogenous auxin and abscisic acid contents in mother bulbs of Lilium longiflorum 'Hinomoto', L. Speciosum, L. Concolor var. Pulchellum amd L. Lancifolium of which the places of origin are different were investigated.Leaf emergence and changes in auxin and abscisic acid in L. Longiflorum showed the similar tendency to those reported previously by the author ; leaf emergence decreased after January to reach the lowest during March and July, when auxin content was low and abscisic acid content was high. Lilium lancifolium and L. Speciosum showed lower leaf emergence throughout the year than other two species, while the leaf emergence of L. Concolor var. Pulchellum was resembled to that of L. Longiflorum. Fluctuations of auxin and abscisic acid were almost similar in all the four species.It is suggested that from the behaviors of leaf emergence in these species dormancy of L. Lancifolium and L. Speciosum is more intense than that of L. Longiflorum and L. Concolor var. Pulchellum, and that among L. Lancifolium and L. Speciosum, the former has more intensive dormancy. Changes in the plant hormone contents in them also support the suggestion.Intensity of dormancy in Lilium species has been shown to have a close relationship to their places of origin.

20^ﾟ 和 12 小时日长下鳞茎出叶过程中的季节变化以及百合'Hinomoto'、L. Speciosum、L. Concolor var. 母球茎中内源生长素和脱落酸含量的变化。对不同产地的白头翁(Pulchellum)和长柄白头翁(L. Lancifolium)进行了调查。 1月份后出叶率下降，3月和7月达到最低，此时生长素含量较低，脱落酸含量较高。 Lilium lancifolium 和 L. Speciosum 的全年出叶量低于其他两个物种，而 L. Concolor var. 的出叶量低于其他两个物种。 Pulchellum 与 L. Longiflorum 相似。 4个物种的生长素和脱落酸的波动几乎相似。从这些物种的出叶行为来看，L. Lancifolium和L. Speciosum的休眠比L. Longiflorum和L. Concolor var.的休眠更强烈。 Pulchellum、L. Lancifolium 和 L. Speciosum 中，前者的休眠更为强烈。其中植物激素含量的变化也支持了这一建议。 百合属物种的休眠强度已被证明与其原产地有密切关系。