不同甘蔗品种单芽段种茎生产性能分析

Analysis on Performance of Single-bud Seedcane Sett in Different Sugarcane Varieties

探讨不同甘蔗品种单芽段种茎在生产应用中的产量潜能,为甘蔗精量和高效率种植技术推广及应用提供科学依据。在宾阳县邹圩镇甘蔗“双高”基地,设置桂糖42号单芽段(A1)、桂糖42号双芽段(A2)、桂糖44号单芽段(B1)、桂糖44号双芽段(B2)、桂糖49号单芽段(C1)、桂糖49号双芽段(C2)、桂糖55号单芽段(D1)和桂糖55号双芽段(D2)共8个处理,分别调查新植蔗和宿根蔗的农艺、产量及品质性状。结果表明:甘蔗单芽段种茎处理的新植蔗在出苗率、分蘖发生率、分蘖率和单位面积有效茎数上表现出高于双芽段种茎处理,均达到0.01极显著差异水平,且在桂糖44号中表现最为明显,分别提高20.30%、17.74%、58.26%、15.49%;在宿根蔗表现上,单芽段种茎处理的发株数、发株率、单位面积有效茎数、产量和产糖量高于双芽段种茎处理,桂糖44号单芽段种茎处理的宿根蔗比双芽段种茎处理分别提高15865株/hm2、12.64%、15.39%、13.59%、13.12%。本试验研究结果为甘蔗单芽段种茎技术在生产中推广应用提供科学参考。

To explore the yield performance of single-bud seedcane set in different sugarcane varieties,and provide scientific basis for the popularization and application of sugarcane precision and high efficiency planting technology.In the“double high”base of sugarcane in Zouxu Town,Binyang County,8 treatments including Guitang42 single bud segment(A1),Guitang42 double bud segment(A2),Guitang44 single bud segment(B1),Guitang44 double bud segment(B2),Guitang49 single bud segment(C1),Guitang49 double bud segment(C2),Guitang55 single bud segment(D1)and Guitang55 double bud segment(D2)were set up,and the agronomic,yield and quality characteristics were investigated in new plant and ratoon sugarcane,respectively.The results showed that the emergence rate,tiller occurrence rate,tiller rate and effective stem number per unit area of new plant sugarcane with single-bud seedcane sett treated were higher than that of double buds sett treatment,all reaching 0.01 extremely significant difference level,and the most obvious in Guitang44,increased by 20.30%,17.74%,58.26% and 15.49%,respectively.In ratoon sugarcane,the number of sprouting plants,the rate of sprouting plants,the number of effective stems per unit area,the yield and the sugar yield of single bud set treatment were higher than that of double buds set treatment,compared with the double buds set treatment,single bud set treatment of Guitang44 increased 15865 plants/hm2,12.64%,15.39%,13.59% and 13.12%,respectively.The results of this experiment provide a scientific reference for popularization and application of sugarcane single-bud seedcane sett technology in production.