...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >The Effect of Ethephon on Berry Colour of Crimson Seedless and Ebony Star Table Grapes
【24h】

The Effect of Ethephon on Berry Colour of Crimson Seedless and Ebony Star Table Grapes

机译：乙烯利对深红无核和乌木食用葡萄浆果色的影响

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

The use of ethephon for improvement of colour and quality of 'Crimson Seedless' and 'Ebony Star' was investigated in the Hex River Valley and at Paarl in the Berg River Valley of South Africa, to determine optimal concentrations and timing of application. Ethephon concentrations ranging from 0 to 1600 mg L~(-1), in combination with four application times, were evaluated. The relationship between application time and certain quantifiable berry quality parameters was also investigated, to enable producers to determine optimal application time objectively. At each ethephon application time, berries were sampled and analysed for TSS, TA and pH. At harvest, 50 berries per treatment were sampled randomly and subjected to sensory colour evaluation. Berry skin anthocyanins was extracted and absorbance at 520 nm was determined. Anthocyanin absorbance levels complemented visual evaluation of berry colour in all three trials. Neither ethephon concentration, nor ethephon application time, affected anthocyaninabsorbance of 'Crimson Seedless' (Hex River Valley) significantly. Ethephon concentrations of 400 to 800 mg L~(-1) are considered as the optimum range for both 'Ebony Star' (Hex River Valley) and 'Ebony Star' (Paarl). For 'Ebony Star' (Hex River Valley)applications later than 5% veraison resulted in higher absorbance and fewer partially coloured berries. Reaction on ethephon application time may be affected by season. Berry TA at time of ethephon application, seems to give the best relationship with berry skin anthocyanin absorbance at harvest.
机译：在南非的十六进制河谷和伯格河谷的帕尔，研究了使用乙烯利改善“深红无核”和“乌木之星”的颜色和质量的方法，以确定最佳的浓度和施药时间。评估了乙烯利浓度范围从0到1600 mg L〜（-1），结合四个施用时间。还研究了施用时间与某些可量化的浆果质量参数之间的关系，以使生产者能够客观地确定最佳施用时间。在每次使用乙烯利时，都要对浆果进行采样并分析其TSS，TA和pH。收获时，每次处理随机抽取50个浆果，并进行感官颜色评估。提取浆果皮肤花色苷并测定520nm处的吸光度。在所有三个试验中，花色苷的吸收水平补充了浆果颜色的视觉评估。乙烯利浓度和乙烯利施用时间均不会显着影响“深红无籽”（Hex河谷）的花青素吸收。乙烯利浓度为400至800 mg L〜（-1）被认为是“黑檀木星”（十六进制河谷）和“黑檀木星”（Paarl）的最佳范围。对于“乌木之星”（Hex River Valley），晚于5％的veraison会导致更高的吸收率和较少的部分着色浆果。对乙烯利施用时间的反应可能会受到季节的影响。施用乙烯利时的Berry TA似乎与收获时浆果皮肤的花色苷吸光度关系最好。

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