Low-cadmium rice variety screening and evaluating method

• Main Authors: CHEN CHUANHUA, WU ZISHUAI, LI QIUWEN, LI HU, LIU GUANGLIN, ZHU QINAN, LUO QUNCHANG
• Format: Patent
• Language: Chinese; English
• Published: 15.10.2021
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING; TRAPPING; WATERING

The invention discloses a low-cadmium rice variety screening and evaluating method, and belongs to the technical field of rice variety screening. The method comprises the steps of test field selection, soil cadmium content trend determination, field parcel preparation, control variety selection, field layout, test design, cultivation management, sampling and determination, and screened variety evaluation. The soil cadmium content condition is known before planting, the groups are arranged according to the trend direction of the soil cadmium content, test errors caused by uneven distribution of the soil cadmium content are reduced as much as possible, the arrangement sequence of variety materials is perpendicular to the distribution direction of the soil cadmium content, screening materials can be roughly located on the same cadmium content distribution line, the test errors are reduced, the cadmium pollution degree is redefined and determined according to actual field performance, and the evaluation difficult