Causes and Prevention methods of panicle sprouting of Rice

Rice is the most important food crop in China, and the phenomenon of panicle sprouting occurs during rice harvest, which not only does not affect the quality of rice, but also affects the germination rate of seeds, resulting in poor quality of sowing in the coming year and economic loss to rice planting. So what is the reason for rice panicle sprouting? Let's get to know it.

1. Harm of panicle sprouting

Panicle sprouting will affect the quality and yield of rice, which will generally be reduced by 10%, and it will also affect the price of grain. In addition, the body weight will increase during panicle sprouting, which will cause the lodging of rice panicle and aggravate the lodging phenomenon. In a rainy and humid environment, it is also very easy to induce rice blast, resulting in yield reduction again, the grain is easy to fall off during harvest, and the loss rate is more than 10%. In combination, once rice sprouting occurs Production may be reduced by more than 30%.

2. Reasons for variety

Rice panicle sprouting is closely related to the dormancy of its varieties. Some varieties have a short dormancy period and are easy to sprout, but the dormant varieties should not germinate. In addition, the varieties with thinner seed coat are easy to sprout, while the varieties with thicker seed coat are not suitable for water absorption, so it is not easy to germinate.

Prevention methods: when planting, we should take measures according to local conditions, and select rice varieties with high yield, strong stress resistance, high quality and long dormant period, which can greatly reduce the phenomenon of panicle sprouting.

3. Weather reasons

When rice is about to mature, if the continuous overcast and rainy weather will make the water absorption of rice reach more than 24%, it will meet its germination conditions. If the temperature exceeds 18 degrees, it will begin to germinate, and the higher the temperature, the faster it will germinate.

Prevention methods: according to the climate change in previous years, reasonable arrangements for rice sowing, so that rice heading and maturity to avoid the rainy season, reduce panicle sprouting. When the environment meets the conditions for panicle sprouting, it should be feared in time after the rain, so as not to soak the spike in water and avoid sprouting in the later stage. In case of overcast and rainy weather during the maturity period, it is necessary to strengthen inspection and find that fields sprouting ears should be harvested in advance when 85% of the grains are ripe to reduce sprouting.

4. Improper management

Some farmers carry out long-term irrigation during the filling period, resulting in high water content and high humidity in the field, resulting in grain filling that is not easy to dry in the rainy season and will sprout easily if they continue to absorb water and expand.

Prevention methods: for water management, shallow water tillering, timely and moderate drying in the middle stage, so as to avoid rice lodging, in the heading and filling stage, keep the soil moist, should not deepen the water level, lest rice absorb too much water.

The above is the introduction of the causes and prevention methods of rice panicle sprouting. I hope it can help you. If you want to know more about it, please follow us.