...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >Influence of electrical conductivity, relative humidity and seasonal variations on the behaviour of cut roses produced in soilless culture
【24h】

Influence of electrical conductivity, relative humidity and seasonal variations on the behaviour of cut roses produced in soilless culture

机译：电导率，相对湿度和季节性变化对无土栽培玫瑰切花行为的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cut rose cv. Sonia flowers were placed in a climatically controlled room (20℃, 60% RH, and 1200 lx for 12 h daily). Flowers were collected throughout the entire production season from plants grown in rockwool slabs at 2 levels of nutrient solutionelectrical conductivity (1.8 and 3.8 mS/cm) in 2 greenhouses: one control and one with high pressure mist (RH >70%). The postharvest criteria considered were: the intensity and evolution of the opening of the flowers with reference to different phenological stages, water uptake and transpiration, and the evolution of flower weight during vase life. RH and nutrient solution EC did not affect the opening of the cut flowers and their vase life. These results indicate that cultural factors have less importance than postharvest factors on the behaviour of cut roses. However, there was a strong seasonal influence on transpiration and water uptake; there was an increase in transpiration and water uptake from summer to autumn followed by a decrease until spring. These observations were related to measurements of stomata closure threshold performed during the growing period.
机译：切玫瑰简历。将索尼娅花放在气候受控的房间中（每天20小时，60％相对湿度和1200 lx放置12小时）。在整个生产季节中，从2个温室中的2种营养液电导率水平（1.8和3.8 mS / cm）在岩棉平板中生长的植物中采集花：1个对照和1个带有高压雾（RH> 70％）。所考虑的收获后标准是：参照不同的物候阶段，吸水和蒸腾作用以及花瓶寿命期间花重的演变，确定了花朵开放的强度和演变。 RH和营养液EC不会影响切花的开放及其花瓶寿命。这些结果表明，文化因素对切玫瑰的行为没有收获后因素重要。但是，季节性因素对蒸腾作用和水分吸收有很大影响。从夏季到秋季，蒸腾作用和水吸收增加，然后一直到春季减少。这些观察结果与在生长期进行的气孔关闭阈值的测量有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号