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Each tuber weighs one to several pounds depending up on the cultivar type and feature gray-brown , rough woody textured skin .

根据不同的品种类型，每一个块茎重量可达1英镑到几英镑，颜色为灰棕色，表皮为粗糙的木质纹理。

International cultivar registration of ornamental plant cultivars .

花卉品种国际登录，或称观赏植物栽培品种登记。

Polyploid breeding is a method of getting new cultivar by polyploidization and selection .

多倍体育种是藉由植物多倍体化再经选育，获得新品种的方法。

The fertilization of cultivar dazi of sweet cherry belongs to premitotic type of syngamy .

甜樱桃品种大紫的受精作用属于有丝分裂前配子体融合的类型。

Plant nutrient heredity ; plant breeding ; low calcium resistance cultivar ; calcium deficiency .

植物营养遗传；植物育种；耐低钙品种；钙缺乏症。