摘要
【目的】分析滴灌甜菜糖分积累与温度相关性,对选择种植区域、预测当年含糖率、决定收获时间均具有重要意义。【方法】以新疆主栽甜菜品种KWS9147为材料,2020、2021年调查糖分动态积累变化,研究糖分积累与各温度指标的相关关系,分析2018~2022年5年甜菜收获时含糖率与9月中旬至下旬糖分快速积累关键时期各温度指标的相关关系。【结果】7、8月各温度指标与糖分积累相关程度较低;9~10月上旬平均温度、平均低温、平均高温、最高低温、阶段性低温、≥10℃积温、≥0℃积温均与糖分积累呈显著负相关,日较差、平均日较差、最大日较差与糖分积累呈负相关,但不显著;9月中旬至下旬平均低温、最高低温与收获时甜菜含糖率呈显著负相关,平均温度、平均高温、阶段最高温与含糖率负相关程度较高,平均日较差、最大日较差与含糖率负相关程度较低,≥10℃积温、≥0℃积温基本上均与含糖率相关性同平均温度。【结论】在温度各指标中,低温对甜菜糖分积累和收获期含糖率有重要的影响。
【Objective】To connect the dots between sugar accumulation and temperature in drip irrigation sugar beet is of great significance for selecting planting areas by predicting sugar content of the year and determining harvest time.【Methods】To investigate the dynamic changes of sugar accumulation in 2020 and 2021,analyze the correlation between sugar accumulation and various temperature indicators and explore the correlation between sugar content at harvest of sugar beet in 2018-2022 and various temperature indicators in the key period of rapid sugar accumulation from mid-September to late September,the main sugar beet variety KWS9147 in Xinjiang was used as the test material.【Results】The correlation degree between temperature indexes and sugar accumulation was low in July and August.The average temperature,average low temperature,average high temperature,maximum low temperature,stage minimum temperature,accumulated temperature above 10℃and accumulated temperature above 0℃were all negatively correlated with sugar accumulation from September to early October,while the diurnal range,average diurnal range and maximum diurnal range were negatively correlated with sugar accumulation,but not significantly.From mid-September to late September,the average low temperature and maximum low temperature were significantly negatively correlated with sugar content during harvest,the average temperature,average high temperature and stage maximum high temperature were negatively correlated with sugar content,while the average diurnal range and maximum diurnal range were negatively correlated with sugar content.The correlation between accumulated temperature above 10℃and accumulated temperature above 0℃and sugar content was the same as that of average temperature.【Conclusion】Among the indexes of temperature,low temperature has more important influence on sugar accumulation and sugar content of beet during harvest.
作者
胡华兵
孙琳琳
刘建雄
贺碧微
刘珣
郇町
李有芳
HU Huabing;SUN Linlin;LIU Jianxiong;HE Biwei;LIU Xun;HUAN Tin;LI Youfang(Shihezi Academy of Agricultural Sciences,Shihezi Xinjiang 832011,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2024年第8期1916-1925,共10页
Xinjiang Agricultural Sciences
基金
新疆生产建设兵团中青年科技创新领军人才计划(2018CB029)
青年科技拔尖人才项目(2023TSYCJC0076)
国家糖料产业技术体系(CARS-17)。
关键词
甜菜
滴灌
糖分积累
温度
相关性
sugar beet
drip irrigation
sugar accumulation
temperature
correlation
