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一、大蒜系统选育的特点系统选育是通过单株选择后再连续优中选优,从老品种中培育出新品种的育种方法。大蒜以营养体蒜瓣无性繁殖,在生长发育过程中有明显的营养倍数效应:蒜母大者株体健壮,生长势旺盛,蒜苔粗壮,蒜头硕大;蒜母小者植株矮小,生长势弱,蒜苔细,蒜头小,甚至不抽苔,产生独头蒜。营养倍数子母比(蒜头与蒜母之比)一般为0.85～5.05∶1,栽培用蒜种的子母比值平均均为4.5,大、中、小三等蒜瓣作种的产量比接近于9∶5∶1。在同一栽培条件下,不管蒜母大小,其子母比是一定值。子母比与栽
First, the characteristics of the system of garlic breeding System selection is through the selection of a single plant after the continuous optimization of excellent, from the old breed breed new breeding methods. Garlic vegetative garlic clover asexual reproduction, in the process of growth and development have significant nutritional fold effect: Garlic large body strong, strong growth potential, thick garlic, garlic huge; Garlic small plant growth is weak, weak growth, garlic Fine, small garlic, do not even moss, resulting in a single head garlic. Nutritional ratio of the ratio of mother and son (garlic and garlic ratio) is generally 0.85 ~ 5.05: 1, cultivated garlic with an average of 4.5 percentage of the ratio of the cousin, large, medium and small garlic cloves production yield closer to 9: 5: 1. In the same cultivation conditions, regardless of garlic size, its mother to mother ratio is a certain value. Mother and mother than with planted