The chromosome doubling of haploid and double haploid in cucumber was studied.
进行了黄瓜单（双单）倍体染色体加倍试验。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
而单倍体植株是胡萝卜遗传研究的最好 材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
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