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以旱地冬小麦品种“郑旱 1号”为材料 ,研究了模拟豫西旱地 9种降水类型冬小麦产量性状的通径分析。结果表明 ,降水量与旱地小麦产量及成穗数和穗粒数呈显著的正相关 ,三个产量性状对产量影响的大小顺序为 :成穗数 >穗粒数 >千粒重 ,底墒水对产量的贡献大于生育期降水的作用。提示旱地小麦蓄足底墒 ,增加土壤水分含量 ,促进小麦分蘖成穗是提高旱地小麦产量的重要途径
Taking winter wheat variety “Zhenghan 1” in dryland as the material, the path analysis of yield characters of nine types of winter wheat in simulated dryland of western Henan was studied. The results showed that there was a significant positive correlation between the amount of precipitation and the yield, the number of spikes and the number of grains per spike in dry land. The order of the three yield traits was: the number of spike> number of spikes> 1000-grain weight, Contribution is greater than the role of precipitation during growth. Suggesting that dryland wheat stored in soil moisture, increase soil moisture content and promote wheat tillering panicle is an important way to improve wheat yield in dry land