Causes and Control measures of Maize Albino seedlings

Albino seedlings often appear in the maize seedling stage, which refers to the phenomenon that the whole plant is white after emergence, which seriously affects the growth of corn and brings serious losses to farmers. So how to prevent and cure albino corn seedlings? Let's get to know it with the editor.

1. Form of expression

There are two main forms of maize albino seedlings in production, one is that the seedlings are white seedlings after they are unearthed, which is a genetic phenomenon called dead gene albino seedlings, which can not live independently because of lack of chlorophyll and will die soon. The other is from the 4 leaves of corn, the color of the leaves at the base of the heart leaves becomes lighter, and the leaves show light yellow and light green stripes at the 5-6 leaf stage, but the veins are still green, and the purple stripes appear at the base. after 10-15 days, the purple gradually becomes yellowish white, the mesophyll becomes thinner, showing white seedlings. In severe cases, the field turns white, mainly due to zinc deficiency in the soil.

2. Occurrence regularity

Maize albino seedling is mainly a genetic segregation phenomenon, which generally appears in the seed production field, but rarely in production. If it also occurs in production, then it is mostly due to seed problems. Because after albino, the seedlings can not form chlorophyll, naturally can not carry out photosynthesis, can only rely on seed nutrients to survive, so they will die after the seed nutrients are exhausted. On the other hand, albinism in non-seed fields is a kind of element deficiency, which is caused by zinc deficiency, with white stripes on the leaves and whitening of the whole plant in severe cases.

3. prevention and control measures

The first albino seedling phenomenon has little effect on the economic value of maize because of genetic control, but we should pay attention to it when selecting seeds. For the second kind of albinism caused by zinc deficiency, it is necessary to prevent soil zinc deficiency. You can mix 1 kg of zinc sulfate and 10-15 kg fine soil and sprinkle it next to the seeds or use zinc sulfate as seed fertilizer. For corn that has albino seedlings, it can be sprayed with 0.2-0.3 kg zinc sulfate and 100 kg water per mu, once every 7 days, 2-3 times in a row. The effect is better.

The above is the introduction of the causes and control measures of corn albino seedlings. I hope I can help you. If you want to know more about it, please follow us.