新疆农业科学2024，Vol.61Issue(10)：2388-2395,8.DOI:10.6048/j.issn.1001-4330.2024.10.006
不同时期干旱胁迫对谷子产量及干物质积累的影响
Effects of drought stress on foxtail millet yield and dry matter accumulation in different periods
摘要
Abstract
[Objective]The objective of this project is to study the relationship between the growth and development of millet and dry matter accumulation under drought stress in different growth stages and to eluci-date the effects of drought stress on the growth and yield of millet.[Methods]Three newly introduced millet varieties(lines)were used as experimental materials,and the water irrigation amount was artificially con-trolled,and drought stress treatment was carried out at different growth stages of millet to explore the changes of millet growth and yield traits under drought stress at different stages.[Results](1)Drought stress had a significant effect on the agronomic traits of millet at heading stage,among which the plant height of 07607 de-creased by 10.2%,the plant height and spike length of Nenxuan No.10 decreased by 10.9%and 16.0%,respectively,and the spike length and stem base diameter of Baogu 22 decreased by 22.8%and 14.6%,re-spectively.(2)Drought stress at heading stage had significant effects on SPAD value,leaf area and dry matter accumulation of millet.(3)Drought at heading stage had a significant effect on plant growth and yield,and the yield was 19.6%,37.5%and 18.4%lower than that of the control,respectively.Irrigation amount was significantly positively correlated with aboveground dry weight,biomass and yield at 0.001 level.(4)The drought resistance of different grain millet varieties(lines)was Baogu 22>Ji 07607>Nenxuan 10.[Con-clusion]The heading stage is a sensitive period for millet to drought stress,and sufficient soil moisture should be ensured during this stage to ensure the increase of millet yield.关键词
干旱胁迫/谷子/农艺性状/干物质积累/产量Key words
drought stress/foxtail millet/agronomic traits/dry matter accumulation/yield分类
农业科技引用本文复制引用
邵疆,赵云,胡相伟,刘杰,纳斯如拉·克热木,石书兵,冯国郡..不同时期干旱胁迫对谷子产量及干物质积累的影响[J].新疆农业科学,2024,61(10):2388-2395,8.基金项目
国家谷子高粱产业技术体系乌鲁木齐综合试验站(CARS-06-14.5-B30) （CARS-06-14.5-B30）
国家自然科学基金地区项目(3206150401) （3206150401）
新疆农业科学院农业科技创新稳定支持专项(xjnkywdzc-2023001) Urumqi Comprehensive Test Station of National Millet Sorghum Industrial Technology System(CARS-06-14.5-B30) （xjnkywdzc-2023001）
National Natural Science Foundation of China(3206150401 （）
Agricultural Science and Technology Innovation and Stability Support Special Project of Xinjiang Academy of Agricultural Sciences(xjnkywdzc-2023001) （xjnkywdzc-2023001）
