Evaluation of the 15th Nationnal Sugarcane Varieties Regional Trial in Dehong
In 2021~2024,the 15th National Sugarcane Varieties Regional Trial of one-year new planting and two-year ratoon test was carried out at Dehong Comprehensive Experimental Station,with Guiliu05136 as CK1 and Yuetang93159 as CK2.The agronomic traits,technological traits,disease resistance of 14 cultivars were investigated or measured,and the varieties tested were evaluated synthetically through the yield,sucrose,sugar content and disease resistance.The results showed that different varieties had significant differences in plant growth performance,sugarcane yield,sucrose and sugar content.In addition,the yield of Guinanya146210 was 107.88 t/hm2,an increase of 0.76%than CK1,and an increase of 27.07%than CK2,the average sugar was 15.88%,an increase of 0.35 and 0.16 percentage points than CK1 and CK2;sugar content was 17.27 t/hm2,which was 3.97%and 28.50%higher than CK1 and CK2,with the best comprehensive performance.The yield of Guitang13334 was 128.77 t/hm2,an increase of 20.26%than CK1,and an increase of 51.67%than CK2,the average sugar was 14.70%,a decrease of 0.83 and 1.02 percentage points than CK1 and CK2;sugar content was 19.05 t/hm2,which was 14.69%and 41.74%higher than CK1 and CK2,with the better comprehensive performance.The other varieties were not ideal enough to be popularized in this experimental area.