Method for accurately identifying saline-alkaline tolerance grade of rice

• Main Authors: GUO XIAYU, LUO YU, WEI ZHONGHUA, LAI YONGCAI, LI BO, CHI LIYONG, SUN BING, REN YANG, WEI CAIQIANG, BIAN JINGYANG, MENG YING, LI RUI, LIU YUANYUAN, WANG YANG, ZHANG LILI, WANG LIZHI, SHANG QUANYU, DONG WENJUN, TANG AO, LI JIARUI, LIU KAI, LIU YOUHONG, SHI XIAOLU, SONG XIANWEI, DI SHUFENG, ZHANG JINGHUA, YU XIAONING, JIANG HUI, FENG YANJIANG, ZHANG XIJUAN, WANG TONGTONG, WANG ZEYUAN, DONG DEJIAN, LENG CHUNXU
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; TRAPPING; WATERING

The invention discloses a method for accurately identifying saline-alkaline tolerance grade of rice, which comprises the following steps: preparing potting soil, namely selecting a plurality of rice varieties with different known saline-alkaline tolerance grades at 3.1-3.5 leaf age, and transplanting seedlings with uniform growth vigor into a potting test barrel; uniformly watering and weeding all the potted rice; calculating the relative saline-alkaline tolerance rate of each variety of rice according to the comparison of the yield of each variety of rice in the potting soil with different proportions and the yield of each variety of rice in the CK potting soil, and determining the optimal saline-alkaline proportion concentration of each variety of rice; and accurately identifying the saline-alkali tolerance grades of the rice varieties by using the determined ratio concentration of the black soil and the saline-alkali soil to obtain the saline-alkali tolerance grades of different varieties. Compared with th