Causes and control methods of male transformation of Zizania caduciflora

Zizania caduciflora is a kind of aquatic vegetable that people like for many years. In the process of planting, it often grows tall, but it is always sterile. People call it "male Zizania latifolia" or "strong Zizania latifolia". The male change of Zizania caduciflora will seriously affect Zizania caduciflora, and seriously lead to no harvest of farmers, so what is the reason for this phenomenon? Come and have a look with the editor.

I. the cause of occurrence

The main reason why Zizania caduciflora forms "male Zizania latifolia" is that some of its tillers and tillers grow in the past, and the emergence speed is too fast, so that the mycelium parasitic on the base of the mother plant does not have time to enter its erect stem. With the upright stem jointing and heading, the flower stem can not be stimulated by the secretion of hormones by the mycelium of powdery mildew, so it can not expand and enrich normally, that is, it can not normally "pregnant Zizania latifolia" and become male. In addition, if male Zizania latifolia is used for breeding, it will only produce new male Zizania latifolia, not the resulting Zizania caduciflora.

II. Prevention and control measures

The main results are as follows: 1. The spread of smut is mainly from the aboveground main stem of the previous year to the young seedlings, although the underground stem is also spread, but the transmission rate is very low. Therefore, if the underground stem is used to propagate for many years in a row, then the number of male Zizania latifolia will increase, and finally there will be no phenomenon of producing Zizania latifolia. Therefore, the plants bearing Zizania latifolia should be selected for reproduction, so that the smut pathogen can be passed on from generation to generation. If it is an one-season cultivation, let it wither naturally, transplant it with buds from the cluster or the edge of the clump the next year, and then use the same method. If it is cultivated in two seasons a year, most of the plants withered in winter should be dug out, leaving a small part in the middle. When they tiller in the second year, the seedlings or stumps drawn underground will be distorted, so that they can not only maintain good characteristics, but also bear more fruit.

2. Avoid continuous cropping of Zizania caduciflora, and it is generally appropriate to rotate for 3-5 years, which is an important means to control the production of male Zizania latifolia.

3. In the field management, the male Zizania latifolia should be pulled out in time, because the male Zizania latifolia grows strongly, and the aboveground part of the plant is tall and takes up more space. When the local lower stolon grows to more than 1 meter, it will seize the space of other plants, which will not only affect the growth of the surrounding plants, but also be planted as a normal tiller of Zizania caduciflora to the next year.

The above is the introduction of the causes and control methods of male transformation of Zizania caduciflora. I hope it can help you. If you want to know more about it, please follow us.