利用小麦-黑麦的7个附加系为材料，研究了黑麦染色体对籽粒淀粉粒的形成和胚乳细胞数目多少的影响。
By using 7 rye additional wheat lines as materials, the effects of rye chromosomes on wheat seed storage starch development and endosperm cell number were studied.
结果表明，胚性愈伤组织是棉花染色体观察的最佳材料。
The results indicated that embryogenic callus was the best material for observed chromosome.
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。
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.
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