学术
不同土壤水分处理下冬小麦生理要素变化分析
张红卫[1] 祝新建[2] 闫小珍[3] 李伟[3]
[1]新乡市气象局,河南新乡453003 [2]获嘉县气象局,河南获嘉453800 [3]焦作市气象局,河南焦作454003
摘 要:
对不同土壤水分条件处理下冬小麦各生理要素的变化特征分析发现，在灌浆高峰阶段，随着土壤水分的增加，冬小麦的光合速率显著加快，平均值在土壤水分含量偏大处理下较土壤水分含量小处理下高5．91μmol·m^-2·s^-1，气孔传导速率高0．1591g·mmol·m^-2·s^-1，叶片蒸腾速率高0．0034g·m^-2·h^-1，叶片温度偏低0．95℃。胞间二氧化碳浓度高44．5mg·cm^-3，气孔阻力偏低2．419s·cm^-1。小麦灌浆期间，充足的土壤水分保证可以有效延长叶片的生理功能，提高小麦产量。[著者文摘]
文章出处:
《气象与环境科学》-2007年30卷B09期 -129-132页
栏目信息:
文献标识码:
A
文章编号:
1673-7148（2007）增刊-0129-04
相关文章:
Study on Physiological Element Variation of Winter Wheat in Different Soil Moisture Treatment
Zhang Hongwei, Zhu Xinjian, Yan Xiaozhen, Li Wei （ 1. Xinxiang Meteorological Bureau, Xinxiang 453003, China; 2. Huojia Meteorological Bureau, Huojia 453800, China; 3. Jiaozuo Meteorological Bureau, Jiaozuo 454003, China）
Abstract:
With the study on physiological element variation of winter wheat in different soil moisture treatment, the results show with the increasing of soil moisture, the photosynthesis rate is increasing strikingly, with the plenty water supply, the average photosynthesis is 5.91 μmol. m^-2. s^-1 higher, the stomas transmit rate is 0. 1591 g. mmol. m^-2 . s^-1 higher, the transpiration rate is 0. 0034 g. higher, the lamina temperature is 0.95 ℃ lower, the concentration of carbon dioxide among cells is 44.5 mg. cm^-3 higher, the stomata resistance is 2.419 s. cm^-1 lower. The results have been bear out that water sufficient supply in the last period is the most important to prolong the leaves＇ physiological function and benefit to the yield of winter wheat.[著者文摘]
Key words:
soil moisture ; winter wheat ; physiological characteristic
基金资助:
科技部农业科技成果转化项目（05EFN217400415、2006GB24160426）资助
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