水稻育种技术的发展对水稻产量的影响——基于1979—2012年辽宁省数据的实证分析

Influences of the development of rice breeding technology on rice Production in Liaoning Province——Based on the data Demonstration of Liaoning Province during 1979—2012

论文在总结辽宁省水稻育种、品种更新的几个升级阶段的基础上,重点分析辽宁省水稻产量与审核品种试验单产的相关关系,并结合其他影响产量的因素建立辽宁省水稻生产函数。研究结果表明,审核品种试验单产对辽宁省水稻产量的正向影响较为显著,同时由于土地、化肥、机械等的投入面临较大困难,因而推动水稻育种的发展更加重要。论文认为,要确保辽宁省水稻增产,需加强水稻优良品种的推广、加大育种科技的投入。

This paper summarizes several upgrades stages of rice breeding in Liaoning Prov- ince, it analyses the correlation between new cuhivars and rice production in Liaoning prov- ince . Combined with other factors affecting the rice production, a rice production function have been established, and then empirical analysis. The results show that the positive effect of the audit variety in test yield is obvious, while the land, fertilizer, machinery and other input are facing greater difficulties, thus promoting the development of rice breeding is morc important.