Key cultivation method for improving heat resistance of Oryza sativa L., and application of key cultivation method in improvement of heat resistance of Oryza sativa L.
A cultivation method and a technology of heat resistance, which are applied in the key cultivation of improving the heat resistance of rice and the application field of improving the heat resistance of rice, can solve problems such as difficult to meet the needs of production, variety difficulty, high temperature insensitivity during the filling period, etc. , to achieve the effects of promoting transshipment, preventing pests and diseases, and reducing canopy temperature
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[0023] The key cultivation method for improving heat tolerance of rice of the present invention includes four aspects: variety selection, reasonable sowing / transplanting density, field water management and use of plant growth regulators. Heat-resistant and high-yielding rice varieties are the key to the success of the technology. Combined with the characteristics of varieties, reasonable close planting and spatial layout, the population structure can be adjusted to reduce the population canopy temperature. In addition, the water in the field is scientifically controlled during the whole growth period of rice, and the water use efficiency is improved through repeated dry and wet water management, so as to prevent the occurrence of diseases and insect pests due to excessive humidity in the canopy of the group, and at the same time reduce the temperature of the canopy. Timely foliar spraying of plant growth regulators can reduce the damage of high temperature to rice pollen grain ...
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