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沪选19是用系统选种法育成的一个中粳类型品种。曾在上海郊区和长江流域各省推广和试种,面积达数百万亩。沪选19的光周期敏感性不及农垦58,感温性不及农垦57,但地理上的适应性比前两个品种广。各地种植结果,表现早熟、稳产、优质。1978年全国科学大会定为重大科研成果,至今一些地方仍把它作为后季稻关门当家品种。一、选育根据和指导思想六十年代初,上海郊区晚稻当家品种是老来青。当时领导确定水稻育种方针要远近结合,以近为主,认为系统选种法能比较稳
Shanghai election 19 is the use of system selection method bred into a Chinese rice varieties. Once in Shanghai suburbs and the Yangtze River Basin provinces to promote and test species, covering an area of several million mu. Shanghai 19 was less sensitive to photoperiod than Nongken 58, and had less temperature sensitivity than Nongken 57, but its geographic adaptability was broader than the previous two varieties. Planting results around the performance of precocious, stable, high quality. In 1978, the National Science Conference was set as a major scientific research achievement. Up to now, some places still regard it as the best-selling rice variety for the latter-season rice. First, the basis of breeding and guiding ideology Early 1960s, Shanghai suburban rice varieties are old-time green. At that time, the leaders determined that the rice breeding policy should be combined with the principle of near and far, and that the system selection method can be relatively stable