To Adapt To The LuZhou Ecological Heat Resistance, High Excellent Quality Rice Variety Screening And Promotion

Rice is an important food grain in our country, the high temperature sensitive period encounter the probability of summer temperature is very high, high temperature hot against the risk is very big. In recent years, our country south rice planting area, especially in SiChuan, ChongQing was rice high-temperature heat damage phenomenon has displayed a growing trend. At present a particular high temperature ecotope, screen out heat resistance, high yield, high quality varieties through the production demonstration application and production, in order to ensure the safety of food production in this area is still rare reports. This test aims to introduce in recent years through the authorized and allow in SiChuan popularization and application of new varieties of rice part in LuZhou high temperature conditions, to adapt to the selected LuZhou ecological condition of high temperature resistant, high quality, high yielding varieties and production demonstration, promotion application, to ensure that farmers increase production and income, ensure the stable high yield of LuZhou food production and promote the sustainable development of agricultural production.Test results show that the selected9rice varieties yield level are behaved well, in addition to the Gang you188other kinds of seed setting rate reached more than80%, the other varieties of seed setting rate reached more than80%, of which Ⅱ you602, Ⅱ you162, D you527, Gang you615, Xie you527seed setting rate reached more than85%, and the Ⅱ you602seed setting rate is reached93.4%. Explain these varieties have to adapt to the characteristics of LuZhou high temperature region planting.Supporting cultivation technology test results show that:in LuZhou high temperature ecological conditions, in order to get high yield, first, we need to pay attention to choose the high temperature resistant varieties, such as II you602, Ⅱ you162, Chuan xiang No8, Second, to apply appropriate supporting technologies, such as dry rice-nursery triangle cultivation, water base triangle cultivation,dry rice-nursery spacing cultivation, etc.On screening the focus of the hybrid rice combinations II you602heat resistant properties research shows that:the Lu hui602in full heading stage to full5days after the average highest temperature35.66℃condition, the seed setting rate reached82.35%, in full panicle stage, full to5days after the average highest temperature36.60℃condition, the seed setting rate is up to77.56%. Ⅱ you602℃high temperature in36.68the setting rate of72.38%, than the same temperature not only under the condition of Shan you6311.14%higher than35℃, and with1.18%higher than Shan you63. Keep in seed setting rate under the condition of80%, filter in Lu hui602and Ⅱ you602flowering high-temperature critical temperature is35.62℃, respectively,34.81℃, respectively, compared with the Ming hui63and Shan you63high1.22℃,1.25℃. This further confirmed the order Lu hui602and hybrid rice combinations Ⅱ you602showed the characteristics of high heat resistance.With incomplete statistics from2007to2010, Ⅱ you602, Chuan xiang No8, Gang you615and Ⅱ you615combined application area of7.905million mu, of which2.21million mu LuZhou popularization and application.2007-2010Ⅱ you602popularization and application area of6.335million mu, In2007-2010, a total of169.3979million kilograms of rice income, increasing income is271.03664million yuan. The2007-2010LuZhou demonstration promotion Ⅱ you602of1.7million mu, increasing rice45.458million kilograms, increasing income is72.7328million yuan.2008-2010type hybrid rice combinations promote Chuan xiang No8for660000mu, In2008-2010, a total of14.223million kilograms of rice income, increasing income is22.7568million yuan. The2008-2010LuZhou demonstration promotion Chuan xiang No8for190000mu, increasing rice4.0945million kilograms, increasing income is6.5512million yuan. The above two aggregate in the2007-1010cumulative promotion Ⅱ you602and Chuan xiang No8covers an area of6.995million mu, total income rice183.6209million kilograms, increasing income is293.79344million yuan. The LuZhou demonstration and promotion for1.89million mu, increasing rice49.5525million kilograms, increasing income is79.284million yuan. Achieved remarkable social and economic benefits.