一种基于回归模型的玉米籽粒含水量快速测定方法的建立及应用
以浚单20、郑单958、桥玉8号、德美亚3号、农华101共5个不同熟期的玉米单交种为材料,利用探针式水分测定仪测量籽粒+苞叶、籽粒的水分含量,采用传统的烘干法对籽粒、穗轴、苞叶的含水量进行测定,将二者的结果进行比较、回归分析,建立了计算玉米籽粒真实水分读数的数学模型：y=95.709-2.29x+0.02x2(R2=0.774),优化了利用探针式水分测定仪进行籽粒含水量测定的方法,对于选育宜机收玉米新品种具有一定的应用价值。早熟品种德美亚3号虽然脱水速率无明显优势,但后期站秆、脱水时间长,收获时含水量明显较低。
英文摘要:
In this study, five hybrids with different maturity periods were used to measure the moisture reading of husk + kernel, kernel by hand-held moisture meter. We compared the data of moisture content which were measured by oven method with the moisture readings, therefor established a standard curve to predict the true moisture content of kernel, and optimized the method of measuring the kernel moisture by hand-held moisture meter. Though there was no significantSadvantage in dehydration rate, the early-maturing variety De Mei Ya No.3 had low water content in harvest stage, mainly because of the long stalk-standing and dehydration period.
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