Have you ever heard of corn going to male? There are few people who can increase production by emasculating corn.

Castration is also a commonly used technical means in agricultural production, especially in seed production; in addition, it will also be used in improving maize yield. It is easy to say about male removal, but in fact, certain operation techniques are needed, and different male operations need to be taken for different operational purposes. Here is a brief introduction. I hope you can have a more intuitive understanding.

Castration breeding

Most people know that corn seeds are hybrids, but there are probably not many friends who can understand how hybrids come from. Chemical male killing, three-line matching and artificial male removal can be used in the production of maize hybrids.

Chemical male killing is the use of chemical reagents to spray stamens, resulting in male pollen abortion, so as to achieve the purpose of cross breeding.

Three-line matching, which is also a commonly used seed production method in many crops, such as Yuan Longping's hybrid rice, the key is to use male sterile line, maintainer line and restorer line to produce seeds. The maintainer line was used to maintain the male sterile line, while the male sterile line was crossed with the restorer line to produce hybrids.

The above two methods do not need to use artificial castration, because the crops used in the above two kinds of crops are basically very difficult to be artificially castrated. However, there is a third kind of artificial castration in breeding. For example, corn, because there are only 4,000 corn plants per mu, and there is only one ear per plant in the field, which is easy to harvest, while stamens are located in the head, separating male and female, which is very convenient for manual male removal.

The following is a brief introduction to the operation of male removal: parents plant in different rows, in the seed production field, using the dislocation of florescence, the female ear row, that is, the female parent sows a little later, and the male parent should sow in advance so that when the female line blossoms, can receive the pollen of the father's line in time. At the same time, it should be noted that stamens need to be removed in time when the mother line is about to take off.

Castration to increase production

The scientific development of agriculture has also been introduced before the application of castration to increase production, and here I would like to introduce again to friends who have never seen it. The purpose of castration is to reduce the nutritional consumption of plant stamen reproductive growth as much as possible, so as to achieve the goal of increasing production and income. However, castration does compare the consumption of manpower. The study shows that the range of yield increase by castration is about 10%, that is to say, the range of increase is 100 jin per mu. With reference to the current corn price, that is, an increase of 100 yuan, but the labor cost is more than that, so this technology has not been applied in agricultural production so far.

The key to increasing yield by castration is to remove stamens without harming leaves and affecting photosynthesis. Among them, the grasp of the period is very critical, if you choose to emasculate all the fields, then you must ensure that all the corn in the field can be pollinated and the stamens of the corn can be removed quickly, but this kind of operation is still relatively difficult. therefore, the operation on the production is not too high, most of the use of interval row castration, stamens can be removed when the stamen is about to be tasted.

In fact, the operation of emasculating in farmland is not difficult, the key is to choose the right period and the appropriate technical operation in the middle according to the purpose. As long as you can do these jobs well, I believe you can also do it. Here, I would like to say a few words to the friends who have gone to Xiong to increase production, which is of scientific significance, but the practicality is really not high.

Here is science to promote agriculture, welcome to add attention, with you to grow knowledge.