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日本小麦育种工作者近年来颇注重利用种间杂交和属间杂交,培育抗叶锈病的小麦新品种。为了在短期内,在同一品系积聚各种抗性基因,栽植杂交期间处于同一世代的植株,加速世代繁育,具有重要意义。因此他们拟定了加速植物发育(加快种子成熟、催芽、春化)的方法。例如:①加快种子成熟。小麦植株开花后,即将其移入25～30℃温室15～20天。然后,在45℃下烘干2小时,进行脱粒。其中,未成熟种子可用1％的双氧水在25℃下浸泡16
In recent years, Japanese wheat breeders have paid more attention to the development of new wheat varieties resistant to leaf rust by using interspecific hybridization and interspecific hybridization. In order to accumulate various resistance genes in the same line within a short period of time, it is of great importance to plant plants in the same generation during the hybridization and accelerate generations of breeding. So they devised ways to accelerate plant development (speed up seed maturation, germination, vernalization). For example: ① speed up the maturation of seeds. After the flowering of wheat plants, it is moved into the greenhouse at 25 ~ 30 ℃ for 15 to 20 days. Then, it dried for 2 hours at 45 degreeC, and threshed. Among them, immature seeds can be soaked in 1% hydrogen peroxide at 25 ℃ 16