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。

Two gradation methods of fertilizer absorption ability and fertilizer liking extent were not only applicable to maize hybrid but also applicable to maize parent. So the gradation methods of fertilizer liking extent could be used to study the hereditary property of nutrient effect for maize. Effect grade of maize hybrid to NPK was consistent with effect grade of maize female parent to NPK, whereas was not consistent with effect grade of maize male parent to NPK. From the above, we drew the preliminary conclusion that nutrient effect property of maize hybrid had a positive relativity with its female parent, and which belonged to female heredity.

国家玉米产业技术体系(CARS-02-17)、国际植物营养研究所(IPNI)项目