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丰产性既是衡量作物品种经济性能的基本内容,也是在生产实践中确定品种应用范围的主要依据。因此,辨析其概念,并探讨相应的研究手段,将有益于生产部门选用品种和科研部门制定育种目标。笔者认为:丰产性应是指作物品种在现实生产条件下所表现出的产量水平。作物的产量是品种的基因型与特定的环境条件互相作用的结果,可见对产量性状的评价离不开环境条件。品种间对地点、肥水、光温、病虫害等各类环境因素的反应特性均有所不同,此
High yield is not only the basic content of measuring the economic performance of crop varieties, but also the main basis for determining the range of varieties in production practice. Therefore, to discriminate its concept and to explore the corresponding research methods, will be beneficial to the production sector selection of varieties and research departments to develop breeding goals. The author believes that: High yield should refer to crop varieties in the actual production conditions shown by the output level. The crop yield is the result of interaction between the genotypes of the cultivars and the specific environmental conditions. Therefore, the evaluation of the yield traits can not be separated from the environmental conditions. Varieties have different response characteristics to various environmental factors such as location, fertilizer, light and temperature, pests and diseases, etc.