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在进行小麦人工杂交工作中,为克服花期不遇,人们已研究出一些方法,这里再介绍一种花粉低温保存法,简便易行。据试验,将发育成熟的花粉连同穗子一同从植株上取下,插入水杯中放入冰箱,在3—4℃温度下存放,14天以内取出授粉,杂交结实率仍可达到80%左右。具体做法如下:采穗:采摘适宜的麦穗是保存花粉成败的关键。据试验观察,中部小花已开放三分之一左右的穗子均可保存;尚未发育好的绿色、绿色带黄花粉的花药,都不宜采摘保存。采摘宜在每天的两次开花高峰之前,选取典型键壮麦株的大穗,从旗叶节以下处,连同穗子、穗轴、旗叶一同剪下,取
In the process of artificial hybridization of wheat, in order to overcome the non-occurrence of flowering period, people have studied some methods. Here again introduce a method of pollen cryopreservation, simple and easy. According to the experiment, the developed mature pollen, together with the ear, is removed from the plant, inserted in a glass cup, placed in a refrigerator, stored at a temperature of 3-4 ° C., and pollination taken out within 14 days. The seed setting rate of hybridization can still reach about 80%. The specific practices are as follows: Spike: Picking the right wheat is the key to the success or failure of pollen. According to the experimental observations, the central floret has been open about one-third of the ears can be preserved; not yet developed good green, green pollen with anthers, should not pick and save. Picking should take place in the peak twice before the flowering day, select the typical key Zhuangmai large spike, from below the flag leaf festival, together with the ear, cob and flag leaf cut together, take