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通过玉米与其亲本营养综合效应的相关性研究,提出玉米吸肥能力与喜肥程度的两种分级方法,初步明确“吸肥能力”与“喜肥程度”的两种分级方法既适用于玉米单交种也适用于亲本。因此,可应用玉米喜肥程度的分级方法来研究玉米营养效应的遗传属性。玉米对N、P、K肥综合效应等级与其母本对N、P、K肥综合效应等级完全一致,与其父本的等级不吻合。玉米单交种的营养效应特性与母本密切相关,初步确认为母性遗传。
Based on the correlation between maize and its parental nutrition comprehensive effects, two grading methods of maize uptake and hi-fat were put forward. The two grading methods of “sucking up fat” and “gluten-up” Suitable for single cross corn also applies to the parent. Therefore, we can apply the grading method of maize heifers to study the genetic properties of maize nutritional effects. The comprehensive effect grade of N, P, K fertilizer on maize was completely consistent with the comprehensive effect grade of N, P, K fertilizers on its maternal parent, which did not coincide with the level of its male parent. Nutritional characteristics of maize hybrids are closely related to the female parent, initially identified as maternal inheritance.