The affinity of self-incompatibility in the mustard family affects the purity of hybrid seed and the propagation coefficient of stock plant.
十字花科自交不亲和性的大小关系到杂交制种的纯度和原种的繁殖系数。
Using theory of vibration wave propagation, the concept of the attenuation coefficient of vibrating acceleration is drawn, and the test results of attenuation coefficient are analyzed.
应用振动波传播理论引出加速度衰减系数的概念，并对加速度衰减系数的试验结果进行了分析。
Studies were made on the vegetative propagation coefficient and cormels biological characters using eighth-excision in different development phase of Lycoris radiate.
在红花石蒜不同生长发育期进行八分法切割繁殖，研究无性繁殖系数和子球生物学性状差异性。
And the influence of the scattering coefficient, absorption coefficient and size of scatters in tissue on propagation of light in tissue is studied in detail.
利用该程序详细讨论了散射系数、吸收系数以及散射体大小等对生物组织内光传输特性的影响。
Seedling grew fast in orchard, having strong resistance, but the low survival rate of field cutting, propagation coefficient is not high, limiting the speed of its promotion.
建立园圃其实生苗生长迅速，抗逆性强，但大田扦插育苗成活率低，繁殖系数不高，限制了其推广速度。
Seedling grew fast in orchard, having strong resistance, but the low survival rate of field cutting, propagation coefficient is not high, limiting the speed of its promotion.
建立园圃其实生苗生长迅速，抗逆性强，但大田扦插育苗成活率低，繁殖系数不高，限制了其推广速度。
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