Correlation Between Agronomic Traits and Yield of Different Wheat Varieties
To provide a reference for wheat breeding,cultivation and management in the Plateau region of western Guanzhong and areas with similar climatic and environmental conditions,the correlation between agro-nomic traits such as plant height,aboveground biomass,spikes per 667m2,and 1 000-grain weight,and yield across nine locally grown wheat varieties was analyzed.The number of spikes per 667m2 exhibited significantly positive correlation with yield.In summary,it is recommended to appropriately increase the number of ears per 667m2,while considering 1 000-grain weight and controlling the number of grains per ear.In terms of variety classification,it is suggested promoting the cultivation of high yield type and medium high yield type varieties in areas with similar climates and environments in the short to medium term.Specific measures for yield improve-ment include:for high and low yield types,appropriately increasing the number of ears per 667m2,controlling 1 000-grain weight and stabilizing the number of grains per ear;For medium to high yield type,appropriately increasing the number of spikes per 667 m2,controlling the number of grains per spike,and stabilizing the 1 000-grain weight,For middle to low yield types:appropriately increasing the number of grains per ear,con-trolling 1 000-grain weight,and stabilizing the number of spikes per 667m2.
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