Research on the Production Potential of Main Sugarcane Varieties Under Different Planting Modes in Hilly and Mountainous Areas
[Objective]The research focused on the production potential of sugarcane main varieties under the different planting modes in mountainous and hilly regions,in order to explore the relationship between the varieties and mechanical adaptation,screen the adaptable varieties for mechanical production,and clarify the main characteristics of the varieties,thus to provide the theory for promoting the completely mechanical production of sugarcane in mountainous and hilly regions.[Method]Two different ecological types of sugarcane production regions in mountainous regions of Yunnan were selected to study the production potential of four main planting varieties,including LC05-136,YZ05-49,YZ05-51,and YZ08-1609,under two different planting modes(the completely mechanical or manual production).[Result]The yield and sucrose content of sugarcane varied between the two factors of varieties and planting modes,and the yield was significantly affected.Under the mechanical production,the yield of YZ08-1609 was significantly higher than that with the treatment of artificial production(P＜0.01),while YZ05-51 showed the opposite trend(P＜0.01),under the mechanical production,the sucrose content of YZ08-1609 is slightly higher than that with the artificial production(P＞0.05),while these of LC05-136 and YZ05-49 were slightly decreased(P＞0.05).The planting density and the emergence rate of sugarcane varied with both varieties and production modes.The planting density under the machinery production was generally higher than that under the artificial production,while the emergence rate was generally lower than that with the treatment of the artificial production.The emergence rate of YZ05-51 under the machinery production significantly decreased(P＜0.05),while the emergence rate of YZ08-1609 remained relatively stable(P＞0.05).The main agronomic traits of sugarcanes varied with both varieties and the production modes.The millable stalks of YZ08-1609 under the machinery production were significantly higher than that under the artificial production(P＜0.05);the industrial characteristics were mainly influenced by the variety.YZ08-1609 owned higher growth potential under the machinery production,with significantly higher yield and millable stalks compared with these under the artificial production,and slightly higher sucrose content;YZ05-51 owned higher growth potential under the artificial production with the performance of higher yield under the artificial production.[Conclusion]Different sugarcane varieties owned the different adaptabilities to the machinery production,like some sugarcane varieties were suitable for the machinery production and some were suitable for the manual production.During pushing forward the progress of the application of mechanical production in sugarcane planting,the adaptability of varieties should be fully considered.Overall,sugarcane varieties suitable for the machinery production should own higher sugarcane yield and more millable stalks,and the sucrose content should be less affected or even slightly higher than that under the manual production.
万方数据
维普
