A new combination of water and drought combined water-saving and drought-resistant hybrid rice has recently been successfully cultivated in Lishui, Zhejiang. At present, the Lishui Agricultural Research Institute is actively working with the Shanghai Center for Agricultural Biology to develop and apply water-saving and drought-resistant hybrid rice varieties.
The advantage of this combination of paddy rice and rice that has been successfully cultivated in Yeosu is that it can save a lot of water. Under the premise of assuring similar production, 700 to 900 cubic meters of water are needed per mu for ordinary rice planting, while water-saving and drought-resistant new varieties need only 200 to 300 cubic meters of water per mu, saving more than 60% of water. Experiments have shown that under the condition of water cultivation, the yield of “II You 628” is almost the same as that of traditional hybrid rice, and the yield per mu is about 600 kg. However, under conditions of severe water shortage, the hybrid rice of other varieties will all die. The output of "II You 628" can still reach more than 300 kg.
The study by the Lishui City Agricultural Institute began in 1998. Using a combination of modern biotechnology and conventional breeding techniques, they selected new combinations of water-saving and drought-saving water-saving hybrid rice varieties. A group of rice varieties with strong drought resistance and superior rice quality were successively bred and used in succession. Demonstration of outstanding performance. In the Yedian Village demonstration plantation area in Shuqiao Township, Qingtian County, the rice planted by villager Xu Baocai suffered from high temperature and dry weather for 45 consecutive days in 748 months of last year, and 80% of the other rice varieties in the village. All died, and his 10 mu “II You 628” rice yield still reached 450 kg.
Luo Lijun, director of the Shanghai Center for Agricultural Biology and Genetics, believes that the “II You 628” hybrid rice successfully grown in Yeosu will reduce irrigation in paddy fields during water-saving, not only reducing the pollution of rivers, lakes, and seas caused by pesticides and fertilizers dissolved in water, but also It is of great significance to maintain stable grain production in dry areas.

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