Genetic Variation And Salinity Alkali Tolerance Analysis In Rice Bud Stage

The carrier materials for the high salinity tolerance of rice in the bud stage, and the carrier materials with excellent and so on, can be used to provide the genetic information and breeding materials for rice varieties. In this experiment, 462 rice varieties from Heilongjiang, Taihu and Vietnam were tested, The germination index of rice to alkali and salt tolerance index, Using SSR markers to scan the rice genome, GLM method was used to analyze the relationship between the TASSEL method and the salt tolerance in the bud stage. The result shows that the salt and alkali tolerance of plant index index and bud germination rate, root length, dry weight, plant height was significantly correlated; The salt tolerance index, Vietnamese rice in bud alkali index variation range of the maximum range of variation, respectively 0-9.333 and 0-5, Salt tolerance index, Heilongjiang rice in bud alkali index range of variation of the minimum range of variation, respectively 0-2 and 0-2.6, Salt tolerance index, Taihu rice bud alkali index range of variation between Vietnam and Heilongjiang, Variation ranges were 0-5.375 and 0-2.875; Selected six Longjing 20, early wild rice, 5, Anhui glutinous rice, Longjing 18, Vietnam 16 varieties as rice resistance molecular breeding saline carrier material; The association results showed that the QTL site was detected by a total of 14 and salt tolerance; 32 SSR excellent alleles were detected, The resistance index of salt effect value maximum is the 7th and 9th chromosome RM1306, RM3600 sites; alkali effect index value is the largest chromosome 8 RM6863 sites.