Corn seed types are diverse; which varieties are both drought-resistant and lodging-resistant?
Scientific Xingnong has written many articles before about corn varieties, so here we will talk with everyone again about the question of corn varieties. The question mentions corn varieties that are relatively good at both drought resistance and lodging resistance. Actually, this question is not very easy to answer, because corn varieties can only play a partial role, and later-stage corn management also accounts for a large part.
First, let me list some corn varieties that currently have relatively good recognition in the market. Corn varieties that are relatively good in drought resistance and high-temperature tolerance include: Zhengdan 958, Liangshuo 88, Longyu 369, Zhongzhong No. 8, Denghai 605, and other corn varieties are all good. In addition, corn varieties that are relatively good in lodging resistance currently include: Jingke 389, Nonghua 98, Denghai 605, Longping 206, Zhengdan 958, and other corn varieties all have quite good market feedback. However, this can only serve as a certain reference and you cannot buy entirely according to it. Different regions have different planting environments, and whether planting management is done well or not will affect the final corn yield.
For drought-resistant corn varieties, generally speaking, in everyone's awareness, white-cob corn varieties are somewhat better in drought resistance than red-cob corn. Of course, there is indeed a very small part here, and many comparisons about red-cob and white-cob corn have been written before. In fact, in terms of drought resistance and high-temperature tolerance, white-cob corn is slightly better. This is mainly because the leaf density of red-cob corn is somewhat denser than that of white-cob corn, so its high-temperature tolerance is somewhat worse. But in terms of lodging resistance, red-cob corn is slightly better than white-cob corn. However, this can only serve as a certain reference value. When actually planting, growers still need to choose corn varieties according to local conditions and local environments.
In addition, there is the problem of lodging. The problem of lodging can only be described as whose lodging resistance is better. No corn variety can avoid lodging under a storm. Even for the same variety, there are situations in the field where someone else's corn has fallen but his family's corn has not fallen. So the problem of lodging resistance is somewhat thorny. Moreover, in recent years, growers have generally adopted the one-shot fertilization method, which makes summer corn, which originally has worse lodging resistance than spring corn, even more prone to lodging.
So seed selection is one aspect, and another aspect is the problem of field management. To achieve a good lodging-resistance effect, reasonable fertilization, scientific chemical control, and reasonable dense planting are all indispensable.