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过去水稻考种往往以一穗、一穴或五穴为单位,分别数其实粒数和空壳数,以计算每穗粒数、实粒数和空壳数等。由于采用一粒粒数的办法,化工多,工效低,延长了考种时间,试验研究总结报告不能很快地写出来,因而试验成果不能及时推广。且整天坐着一粒粒地数,有时数得眼花缭乱,容易数错,则考种结果的正确性不大,甚至与实际产量相反。如1958年本室进行的一季晚稉品种预备试验,其中“松江种”实际亩产934斤,而考种结果,每穗实粒数只有57.7;对照品种“10509”亩产809
In the past rice test species often a spike, one hole or five points as a unit, respectively, the number of actual number of shells and the number of empty shell to calculate the number of grains per spike, the number of real grains and the number of shells. As a result of a particle number of ways, chemical industry, low work efficiency, extended test time, test report summary can not be quickly written out, so the test results can not be timely promotion. And sat a grain of land all day, and sometimes count dazzling, easy to count the wrong, then test the results of the correctness is not, or even the actual output of the opposite. For example, in 1958, one season of late japonica rice variety preparation test was conducted in this room, in which the actual yield of “Songjiang” species was 934 kg, while the result of seed selection test was only 57.7 per grain. The control variety “10509”