• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Horticultural Congress on Science and Horticulture for People >Physiology of Pre-Harvest Drop in Thompson Navel Orange (Citrus sinensis)
【24h】

Physiology of Pre-Harvest Drop in Thompson Navel Orange (Citrus sinensis)

机译：汤普森脐橙（柑橘Sinensis）的收获预收获下降的生理学

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In some citrus cultivars, pre-harvest drop is one important reason for high losses in this important horticultural crop in Iran. Obtaining more information about abscission physiology may reduce or delay it with appropriate treatments. Therefore this experiment was conducted to investigate auxin, cellulase and polygalacturonase in the abscission zone of Thompson navel orange, and its relationship with fruit abscission. An experiment was performed in a randomized complete block design with 7 treatments: 1) Control; 2) 2,4-D; 3) 2,4-D + urea; 4) 2,4-D + ZnSO4; 5) 2,4-D + sucrose; 6) 2,4-D + GA_3; and 7) GA3 + urea, and 4 replications. Results showed that the control had the highest abscission percent, the lowest auxin and the highest enzyme levels. Treatments 2, 3 and 4, significantly reduced abscission compare to the control. Auxin increased significantly in these treatments. Polygalacturonase levels in treatments 2 and 3 were significantly reduced. Abscission had a significant negative correlation with auxin and a significant positive correlation with hydrolytic enzymes. Therefore, treatments 2, 3 and 4, delayed reduction of auxin level, and decreased production or activation of hydrolytic enzymes and postponed breakdown of cell walls in the abscission zone, thus resulting in a significant reduction in pre harvest drop compare to the control.
机译：在一些柑橘品种中，收获前下降是伊朗这一重要园艺作物中高损失的一个重要原因。获得有关脱落生理学的更多信息可以通过适当的治疗来减少或延迟它。因此，进行该实验，以研究汤普森脐橙脱落区的生长素，纤维素酶和多肢乳突酶及其与果实脱落的关系。在随机完全块设计中进行实验，具有7种治疗：1）控制; 2）2,4-D; 3）2,4-D +尿素; 4）2,4-D + ZnSO4; 5）2,4-D +蔗糖; 6）2,4-D + Ga_3;和7）GA3 +尿素和4个复制。结果表明，该对照具有最高的脱落百分比，最低的植物蛋白和最高的酶水平。治疗2,3和4，显着降低脱落与对照相比。在这些治疗中，生长素显着增加。治疗方法2和3中的聚半乳糖酸酶水平显着降低。脱落与植物蛋白具有显着的负相关性和与水解酶的显着正相关性。因此，治疗2,3和4，延迟减少唾液水平，降低水解酶的生产或激活，并推迟脱落区中的细胞壁击穿，从而导致预先收获液滴的显着减少与对照相比。

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