棉花脱叶催熟剂对纤维品质的影响及应用时间的确定

田景山, 张煦怡, 王文敏, 杨延龙, 随龙龙, 张鹏鹏, 张亚黎, 张旺锋, 勾玲

A method of defoliant application based on fiber damage and boll growth period of machine-harvested cotton

Jing-Shan TIAN, Xu-Yi ZHANG, Wen-Min WANG, Yan-Long YANG, Long-Long SUI, Peng-Peng ZHANG, Ya-Li ZHANG, Wang-Feng ZHANG, Ling GOU

表1 脱叶催熟剂试验种植的棉花品种、播种日期、挂花日期和脱叶催熟剂喷施时间

Table 1 Cotton cultivars, sowing dates, tagged dates and defoliation times in the defoliation experiment

年份 Year 试验地点 Experiment plot ‘新陆早’系列品种序号 No. of ‘Xinluzao’ cotton cultivars 播种日期 Sowing dates (month/day) 挂花时期 Tagged dates (month/day) 脱叶催熟剂 喷施时间 Defoliation times (d) 2016 石河子大学农学试验站 Shihezi University Experiment Station 1, 6, 7, 13, 33, 45 4/21 7/20 30, 37 46, 47, 58, 60, 62, 63, 64 4/21 7/20 37, 44 新疆乌兰乌苏农业气象试验站 Wulanwusu Agrometeorological Experiment Station 33 4/15 7/15 30, 37, 44 33 4/15 7/22 30, 37 59 4/8, 4/15, 4/22 7/15, 7/15, 7/22 30, 37, 44 2017 石河子大学农学试验站 Shihezi University Experiment Station 45, 46, 47, 60, 61, 62, 63, 64 4/22 7/12 30, 37 33, 59 4/22 7/12 30, 37, 44