不同灌溉模式对小麦‘烟农5158’光合特性及产量的影响

Different Irrigation Patterns:Effects on Photosynthetic Characteristics and Yield of ‘Yannong 5158'

为了明确在胶东地区气候条件下‘烟农5158’适宜的灌溉模式,笔者在大田条件下研究了不同灌溉模式对‘烟农5158’生理特性、产量及产量三因素的影响。结果表明:随着灌溉次数的增加,‘烟农5158’旗叶相对含水量、旗叶最大光化学效率(Fv/Fm)、光合速率提高。‘烟农5158’叶片相对含水量、实际羧化效率和光合速率高于‘鲁麦21’,说明‘烟农5158’的抗旱性强于‘鲁麦21’。干旱显著降低‘烟农5158’和‘鲁麦21’的产量,‘烟农5158’的产量显著高于‘鲁麦21’。3个灌溉处理相比较,春灌2水处理(拔节水和开花水)处理的小麦产量较高。

The paper aims to find the suitable irrigation pattern of‘Yannong 5158＇under the climate condition in Jiaodong area,the authors studied the effects of different irrigation patterns on physiologicalcharacteristics,yield and yield components of‘Yannong 5158＇. The results showed that： the relative watercontent of flag leaf,Fv/Fm of flag leaf and photosynthesis rate of‘Yannong 5158＇were improved withirrigation time increase; the relative water content of leaf,actual carboxylation efficiency and photosynthesisrate of‘Yannong 5158＇was higher than that of‘Lumai 21＇,which indicated that the drought resistance of‘Yannong 5158＇was stronger than that of‘Lumai 21＇; drought stress decreased the yield of‘Yannong 5158＇and‘Lumai 21＇,and the yield of‘Yannong 5158＇was higher than that of‘Lumai 21＇. Among the three irrigation treatments,the yield in the third treatment was the highest.