三种胡麻生长模型对现蕾期和青果期干旱胁迫响应能力的比较  

Comparison of responsiveness of three oil flax growth models to drought stress at budding stage and green fruit stage

作　　者：樊玉春 李玥[2] 魏霖静[2] 赵霞[2] 周慧[2] FAN Yu-chun;LI Yue;WEI Lin-jing;ZHAO Xia;ZHOU Hui(College of Science,Gansu Agricultural University,Lanzhou 730070,China;College of Information Science and Technology,Gansu Agricultural University,Lanzhou 730070,China)

机构地区：[1]甘肃农业大学理学院,甘肃兰州730070 [2]甘肃农业大学信息科学技术学院,甘肃兰州730070

出　　处：《江苏农业学报》2023年第2期423-433,共11页Jiangsu Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(32060437、31360315);甘肃农业大学青年导师基金项目(GAU-QDFC-2020-12);甘肃省自然科学基金项目(18JR3RA165)。

摘　　要：本研究利用不同胡麻品种、不同干旱程度的大田试验数据,检验、评估3种作物模型干旱胁迫效应算法的精确性,及其在现蕾期、青果期干旱胁迫处理下对胡麻蒸腾速率、气孔导度、叶面积指数及籽粒产量4个指标的模拟预测能力。模拟结果表明,干旱胁迫使胡麻蒸腾速率、气孔导度、叶面积指数和籽粒产量降低。3种作物模型干旱胁迫效应算法可以模拟出胡麻生理生化指标在各干旱处理下的变化趋势,但模拟效果不够理想。3种干旱胁迫效应算法均低估了籽粒产量。综合考虑,WOFOST模型干旱胁迫效应算法对籽粒产量、蒸腾速率的模拟效果最好,APSIM模型干旱胁迫效应算法对气孔导度的模拟效果最好,DSSAT模型干旱胁迫效应算法对叶面积指数的模拟效果最好。In this study,the accuracy of drought stress algorithms of three crop models and their ability to simulate and predict four indicators of transpiration rate,stomatal conductance,leaf area index and seed yield of oil flax under drought stress at green fruit stage and budding stage were tested and evaluated using data from field trials with different oil flax varieties and different drought levels.The simulation results showed that drought stress reduced transpiration rate,stomatal conductance,leaf area index and seed yield.The drought stress algorithms of three crop models could simulate the change trends of physiological and biochemical indices of oil flax under every drought treatment,but the simulation was not satisfactory.All three drought stress algorithms underestimated the seed yield.The results indicated that the drought stress algorithm of WOFOST model had the best performance on the simulation of seed yield and transpiration rate,the drought stress algorithm of APSIM model had the best performance on the simulation of stomatal conductance,and the drought stress algorithm of DSSAT model had the best performance on the simulation of leaf area index.

关 键 词：胡麻 作物生长模型 干旱胁迫 现蕾期 青果期 

分 类 号：S565.3[农业科学—作物学]