Rice Pesticide Registration Certificate No. 88-39-4 Information Overview

Excellent variety in the rice regional trial of rice-growing areas. 88-39-4 is a conventional japonica rice variety bred by the Institute of Agricultural Sciences of Changshu City, Jiangsu.

Characteristics: In 1998, it participated in the national southern rice region double-season late japonica group regional trial, with an average yield of 7208.9 kg/hm2, 9.6% higher than the control Xiushui 11, extremely significant, ranking first; in the 1999 continued trial, the average yield was 7157.9 kg/hm2, 2.22% higher than the control Xiushui 11, not significant, and 3.12% lower than Xiushui 63, not significant, ranking seventh; the average yield in the production test was 5718.3 kg/hm2, 4.64% higher than Xiushui 11, ranking second. The average whole growth period is 133.3 days, 2.6 days earlier than the control Xiushui 11 and 0.5 days earlier than Xiushui 63. Seed-setting rate 75.1%, 1000-grain weight 26.4 g. Resistance: leaf blast grade 7-9, panicle blast grade 9, bacterial leaf blight grade 5, brown planthopper grade 3. Grain quality: head rice rate 60.6%, chalkiness degree 15.3%, amylose content 18.1%.

Bred by the Institute of Agricultural Sciences of Changshu City, Jiangsu

Region and technology: It can be planted as single-season or double-season rice in the japonica rice areas of the Yangtze River Basin.