作物杂种优势机理和优势预测的研究

由于作物产量是由基因和环境众多因子相互作用、调节的最终结果．要希望任何单个因子与作物产量相关，建立一种与作物产量的关系是非常困难的．本文从生理、生化和遗传等方面概述了杂种机制的形成及杂种优势预测方法的研究。

The Study on Mechanism and Forecast of Crop Heterosis

Owing to the fact that the output of crops is determined by the coordination of the gene and a number of enviromeatal fators,it poses a difficult problem that we shall atterrpt to interrelate and single sen with the output of crops.this paper reviewed briefly the current advancement of heterosis prediction methods in physiological biochemical hereditary and other different aspects.