Effects of temperature, 8-hydroxyquinoline sulphate and sucrose on the vase life of cut rose flowers

被引：89

作者：

Ichimura, K ^{[1
]}

Kojima, K ^{[1
]}

Goto, R ^{[1
]}

机构：

[1] Natl Res Inst Vegetables Ornamental Plants & Tea, Ano, Mie 5142392, Japan

来源：

POSTHARVEST BIOLOGY AND TECHNOLOGY | 1999年 / 15卷 / 01期

关键词：

cut flower; 8-hydroxyquinoline sulphate (HQS); Rosa hybrida; sucrose; vase life; water relations;

D O I：

10.1016/S0925-5214(98)00063-5

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Cut roses (Rosa hybrida L.) cv. Sonia were continuously treated with water (control), 200 mg l(-1) 8-hydroxyquinoline sulphate (HQS) or 30 g l(-1) sucrose plus 200 mg l(-1) HQS (Suc + HQS) at 20, 25 and 30 degrees C. Higher temperatures promoted flower opening and shortened vase life. HQS and Suc + HQS both extended the vase life at all temperatures, but Suc + HQS was the more effective treatment. Flower diameter and fresh weight were markedly increased by Suc + HQS, particularly at 20 degrees C. Hydraulic conductance of stem segments from the control treatment decreased rapidly after harvest, but those for HQS and Suc + HQS treatments were maintained near their initial level. Concentrations of glucose, fructose and sucrose in petals were increased by the Suc + HQS treatment, compared with the control or HQS treatment. Correlations between sugar concentrations in petals and maximum flower diameter or vase life were positive. These results show that soluble carbohydrate concentration in petals is an important factor in determining the vase life of cut rose flowers at all temperatures examined and when hydraulic conductance is not reduced. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：33 / 40

页数：8

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