Postharvest Quality of Potted Impatiens walleriana Hook. f. ex D. Oliver as Influenced by Silver Thiosulphate Application and Light Conditions
Postharvest Quality of Potted Impatiens walleriana Hook. f. ex D. Oliver as Influenced by Silver Thiosulphate Application and Light Conditions
复制标题
盆栽凤仙花采后品质。
DOI：
10.2503/jjshs.61.643
复制
发表时间：
1992
影响因子：
--
通讯作者：
H. Imanishi
中科院分区：
文献类型：
--
作者：
M. Doi;T. Mizuno;H. Imanishi
标题瓦氏凤仙花的盆栽。F. ex D.将奥利弗“超级艾芬猩红”在各种采前遮荫条件下驯化30天，然后使其经受模拟采后花店条件，即：例如，20°C和人工照明由荧光管提供。1.盆栽植物的货架期受采前和采后光照条件的影响。采前30 d内降低60 ~ 80%的光照强度和采后5.50W·m ~（-2）的光照强度可抑制花蕾脱落。2.在这种条件下，驯化植物的叶片表现出较小的L x B/|一|并且具有增加的叶绿素含量，其在模拟花店条件下持续存在。在采后施0.001 mM硫代硫酸银（STS）可有效地降低采后弱光诱导的花蕾脱落，但STS对防止弱枝生长没有效果。3波段辐射型荧光灯管提供3.5W·m-2的光照强度，配合STS施用，可使盆栽凤仙花的货架期延长至19 d。
Potted plants of Impatiens walleriana Hook. f. ex D. Oliver 'Super Erfin Scarlet' were acclimatized under various preharvest shaded conditions for 30 days and then subjectec to simulated postharvest florist shop conditions, i. e., 20°C and artificial lighting providec by fluorescent tubes.1. The shelf life of potted plants was affected by both pre- and postharvest light condi tions. Flower bud abscission was suppressed by a 60 to 80% reduction in light intensity during the 30-day preharvest period and a light intensity of 5.50W-m-2 after harvest. 2. Under such conditions, the leaves of acclimatized plants exhibited less L x b/|a| and had increased chlorophyll content which persisted under the simulated florist shop conditions. Foliar spray of 0.001mM silver thiosulfate (STS) applied at harvest just prior to shippirq effectively reduced flower bud abscission induced by low light intensity during the posthar vest period; but STS applications had no effect on preventing weak shoot growth. Light intensity of 3.5W•m-2 provided by 3-band radiation type fluorescent tubes, in combination with STS application, extended the shelf life of potted Impatiens plants up to 19 days.