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通过不同种密度对株型紧凑的矮秆蓖麻(CSR6.181、06矮蓖1号)产量及其构成因素的影响进行研究,结果表明:随着密度的增加,单株籽粒产量减小,群体籽粒产量则是先增加后减少.不同密度处理间群体籽粒产量呈显著性差异,两品种均在39798株/hm2的密度处理下产量达到最大值,分别为2040.05 kg/hm2和2278.83kg/hm2,主穗和一级分枝穗对群体籽粒产量的贡献逐渐增大.
The effects of different density on the yield and its components of dwarf castor (CSR6.181,06) were studied. The results showed that with the increase of density, the grain yield per plant decreased, The grain yield of the population firstly increased and then decreased.The grain yield of different density treatment groups showed significant difference, and the yield of two varieties reached the maximum under the density treatment of 39798 plants / hm2, which were 2040.05 kg / hm2 and 2278.83 kg / hm2, respectively , The contribution of main ear and first-level branch spike to the grain yield of the population increased gradually.