摘要
为定量评估不同热量条件对石河子棉区棉纤维品质的影响,以当地主栽品种为材料,2003—2007年在莫索湾气象站和乌兰乌苏农业气象试验站内进行分期播种试验,并收集同期气象观测资料,分析不同播期内开花——裂铃期间的日最高、日最低温度、日平均温度和逸10、15、20℃活动积温等热量条件与棉花主要纤维品质特征的相关性。结果表明:①该棉区棉花纤维断裂比强度与热量条件相关最为明显,②限制该地区棉花纤维品质档次提高的主要纤维品质指标是断裂比强度,③当地主栽品种断裂比强度都具有随播期延后而减小的趋势,不同品种的比强度随播期延后反应表现不一致。
In order to evaluating the effect of different heat conditions on fiber quality of cotton in Shihezi, we used the local cultivars as material, carried out interval sowing experiments from the year 2003 to 2007 in Wulanwusu agrometeorological experiment station and Mosuowan meteorological station. Meanwhile,we collected the meteorological observation data, and calculated and sorted daily average temperature, daily maximum, minimum temperature and ≥10 ℃, 15 ℃, 20℃accumulated temperature data of five sowing period of cotton flowering to full flower stage and full flower stage to cleft boll stage. We analyzed the relationship between these heat conditions and cotton main fiber quality characters. Conclusions are as follows： ①the correlation between cotton fiber fracture strength and heat condition is most obvious . ② Breaking strength is the main fiber quality index which limited the area of cotton fiber quality grades improving. ③The breaking strength of local main cultivars has the tendency of decreasing with the sowing date delayed, while the performance of delay in the sowing date is different among varieties of cultivars.
出处
《沙漠与绿洲气象》
2013年第4期61-65,共5页
Desert and Oasis Meteorology
基金
公益性行业(气象)科研专项(GYHY201106025)
公益性科研院所基本科研业务费项目(IDM201201
IDM201005)
国家自然科学基金(41005059
31060036)
新疆气象局项目(201009)共同资助
关键词
石河子
分期播种
热量条件
纤维品质
Shihezi
sowing date
heat condition
cotton fiber quality
