Studies in regulation of life-cycle and high degree efficiency of flower production in showy lily

艳丽百合生命周期调控及花卉高效生产研究

• 批准号: 07660035
• 负责人: TAMURA Fumio
• 金额: $ 1.34万
• 依托单位: Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07660035/
• 关键词: Lily; Tissue culture; Breaking dormancy; Plant hormones; 液体培地; 効率的増殖

Bulbs of showy lily (Lilium Speciocum) was treated with chilling and plant hormones, then intensity of dormancy and quality of flowers were determined. Dormancy of the bulbs were broken by 80 days of chilling. GA3 induced breaking of dormancy while number of flowers increased by BA treatment. GA+BA treatment also showed positive effects for bud break and number of flowers.ABA,GA and soluble sugar contents were checked in the bulbs during chilling treatment. Decline of ABA and increase of GA were detected in the bulbs when they were released from dormancy. Soluble sugar content also increased immediately after breaking dormancy.These results indicated that levels of GA and ABA were connected with dormancy of Lily bulbs. It was also indicated cytokinin induced flower bud development in Lily. Controls of dormancy, flowering and increasing of flower qualities may be performed by GA+BA treatment.

以百合(Lilium Speciocum)为试材，用低温和植物激素处理鳞茎，测定其休眠强度和花的品质。经过80天的冷藏，鳞茎的休眠被打破。GA_3能打破休眠，BA处理能增加花朵数。GA+BA处理对鳞茎的破芽和开花数也有一定的促进作用。低温处理期间，鳞茎中ABA、GA和可溶性糖的含量均有所下降。鳞茎解除休眠后，ABA含量下降，GA含量升高。百合鳞茎打破休眠后，可溶性糖含量也立即升高，说明GA和ABA水平与百合鳞茎休眠有关。这也表明细胞分裂素诱导百合花芽发育。GA+BA处理可实现对休眠、开花和花质提高的控制。