Effects of Tea-Seed Saponins on the Vase Life, Hydraulic Conductance and Transpiration of Cut Rose Flowers

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
39-02-07.pdf197.69 KB

Saponin(s) was extracted from tea seeds, and its effect on the vase life, transpiration from leaves and hydraulic conductance of stem segments in cut roses (Rosa hybrida L. cv. Sonia) were investigated. The continuous treatment with tea-seed saponins (TSS) at 20 mg L-1 significantly extended the vase life of cut rose flowers, but those at other concentrations did not. The volume of water uptake and water loss by the cut flowers decreased with increasing concentration of TSS. TSS induced stomatal closure. In cut flowers kept in water, hydraulic conductance of the stem segment decreased with time,and 20 mg L-1 TSS treatment considerably suppressed this decrease. The results show that TSS markedly inhibited transpiration from leaves and suppressed decrease in hydraulic conductance, which may be responsible for a significant increase in vase life.

作成者 ICHIMURA Kazuo FUJIWARA Takahiro YAMAUCHI Yuji HORIE Hideki KOHATA Katsunori

cut flower

Rosa hybrida

water relations

公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 115
終了ページ 119
DOI 10.6090/jarq.39.115
権利 Japan International Research Center for Agricultural Sciences
言語 eng