How is the Tianhe No. 1 early indica rice variety?

In 2002 and 2003, the two-year average yield of this variety was 425.7 kg per mu, an increase of 9.94% over the control "Jiayu 948"; the two-year average whole growth period was 111.2 days, 2.2 days longer than the control "Jiayu 948"; the two-year regional trial average effective panicles per mu were 216,000, the number of filled grains per panicle was 91.4, the seed setting rate was 79.4%, and the 1000-grain weight was 25.6 g. According to the 2003 appraisal results of the Plant Protection Institute of the Provincial Academy of Agricultural Sciences, the average grade of leaf blast was 0.5, the average grade of panicle blast was 1, the loss rate from panicle blast was 0.8%, and the average grade of bacterial blight was 3.6. According to the 2003 analysis results of the Rice and Rice Products Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture, the head rice rate was 35.5%, the length-to-width ratio was 2.2, the chalky grain rate was 100%, the chalkiness degree was 42%, the amylose content was 25%, and the protein content was 10.7%.

This variety is a medium-maturing, slightly late early indica rice, with a relatively compact plant type, high grain density, and relatively large panicles. It has relatively high amylose and protein contents and is suitable for use as processing grain. It is suitable for promotion and planting in Jinhua, Quzhou, and ecologically similar areas.