湖南农业科学Issue(4)：1-6,6.DOI:10.16498/j.cnki.hnnykx.2025.004.001
不同播期对桂中地区甜高粱产量和糖锤度的影响
Effects of Different Sowing Dates on the Yield and Brix of Sweet Sorghum in Central Guangxi
摘要
Abstract
The purpose of the present study was to screen out the sweet sorghum variety suitable to be planted and harvested during the non-crushing season of sugarcane in central Guangxi and clarify the optimum sowing date.'Tian 35'and'Kaoli'were sown on five dates(S1:March 30;S2:April 30;S3:May 30;S4:June 30;S5:July 30).The growth period,stem yield,leaf yield,grain yield,stem brix,and total sugar yield were determined.The results showed that sowing date significantly affected the growth period by influencing the stages from emergence to flag leaf expansion and from flowering to full maturity and the whole growth period,and the shortest whole growth period was found under the S3 treatment.As the sowing date was postponed,the stem and leaf yields of the two varieties firstly increased and then decreased,being the highest under the S3 treatment,The highest grain yields of'Tian 35'and'Kaoli'were observed under S4 and S5 treatments,respectively.Under all treatments,the stem brix peak of'Tian 35'appeared at the full maturity stage or thereafter.However,the appearance of the maximum stem brix of'Kaoli'was advanced to the milk ripe stage as the sowing date was postponed.Under all treatments,the total sugar yield and theoretical ethanol yield of'Kaoli'were significantly higher than those of'Tian 35'.Moreover,the total sugar yield and theoretical ethanol yield of'Kaoli'under the S3 treatment were significantly higher than those under other treatments.According to the results,it is suggested that the late-maturing variety'Kaoli'serves as a candidate to be planted during the non-crushing season of sugarcane in southern China,and May 30 is the optimum sowing date for this variety.关键词
甜高粱/播期/产量/糖锤度Key words
sweet sorghum/sowing date/yield/brix分类
农业科技引用本文复制引用
白彩虹,李杏艳,张彩,吴卓宣,梁永晶,梁琦奔,葛耀相..不同播期对桂中地区甜高粱产量和糖锤度的影响[J].湖南农业科学,2025,(4):1-6,6.基金项目
国家自然科学基金项目(32260534 （）
32460465) （）
广西科技计划基地和人才专项(桂科AD20238066 （）
桂科AD20230877) （）
玉林师范学院高层次人才项目(G2019ZK40 （）
G2019ZK45) （）
玉林师范学院大学生创新创业计划项目(202210606215 （）
S202410606159) （）
