Department of Agricultural Botany, U.C.W., Aberystwyth, Wales, UK.
Theor Appl Genet. 1973 Jan;43(3-4):162-6. doi: 10.1007/BF00306566.
As a consequence of selection the distribution and frequency of B chromosomes varies among survivors of rye seedlings planted in different environments. The mean B frequency per plant decreased under conditions of "high" as compared with "low" density of planting. Differences in weather and soil type between two sites also caused a significant shift in the distribution and frequency of B chromosomes.
由于选择的作用，在不同环境中种植的黑麦幼苗的 B 染色体的分布和频率有所不同。与“低密度”种植相比，在“高密度”种植条件下，每个植物的 B 染色体平均频率降低。两个地点之间的天气和土壤类型的差异也导致 B 染色体的分布和频率发生了显著变化。
