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上海郊区油菜高产联合试验,自1973年秋播以来,已经进行了五年,每年参试单位十个左右,高产试验田面积都在一亩以上。试验目的是认识油菜生育规律,总结高产经验。前四年一些单位的试验田稳产在300—350斤。78年8块田平均单产362.3斤,有2块田亩产近400斤。 78年高产最显著的特点是总角数多,粒数和粒重略低于前几年,据联系点考种,平均每亩有总角数395万,粒数17.4粒,千粒重3.16克,与高产的74年相比,总角数增
Shanghai rapeseed high yield joint test in the suburbs since 1973 autumn has been carried out for five years, about ten participating units each year, high yield test area in more than one acre. The purpose of the experiment is to recognize the law of rape reproductive, summed up the high yielding experience. Some units in the first four years of experimental field stable yield 300-350 pounds. In 78 years, the average yield of 8 fields was 362.3 kg, with 2 fields yielding nearly 400 kg per mu. 78 years of high yield is the most significant feature of the total number of angles, grain number and grain weight slightly lower than a few years ago, according to the contact point seed test, the average total acre of 3950000, 17.4 grains, 1000 grain weight 3.16 grams, Compared with the high yield of 74 years, the total number of corners increased