英语语法分析

The results indicated that the metaxenia was mainly affected by paternal genetic factors, while weakly by the cultivated practices.

结果表明，蜜梨相关性状的花粉直感效应主要来自父本遗传因素，不同栽培措施的影响则相对微弱。

This paper summarizes the effects of metaxenia on fruit quality and fruit maturation period during the fruit production and the research status on action mechanism of metaxenia.

综述果树生产中花粉直感对果实品质及果实成熟期的影响，以及花粉直感作用机理的研究现状。