播期和种植密度对早熟高糖甘蔗‘云蔗05-51’产量及其构成因素的影响  

Effects of Sowing Dates and Planting Densities on Yield and Yield Components of Sugar Cane ‘Yunzhe 05-51’ with Early Maturing and High Sugar Content

作　　者：俞华先[1] 经艳芬[1] 安汝东[1] 郎荣斌[1] 边芯[1] 周清明[1] 田春艳 孙有芳[1] 桃联安[1] Yu Huaxian;Jing Yanfen;An Rudong;Lang Rongbin;Bian Xin;Zhou Qingming;Tian Chunyan;Sun Youfang;Tao Lian＇an(Ruili Breeding Station,Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences,Ruili Yunnan 67860)

机构地区：[1]云南省农业科学院甘蔗研究所瑞丽育种站,云南瑞丽678600

出　　处：《中国农学通报》2018年第29期20-25,共6页Chinese Agricultural Science Bulletin

基　　金：云南省科技惠民计划(农业)"云南甘蔗杂交花穗规模化生产与抗旱新品种选育及示范"(2014RA059);云南省甘蔗遗传改良重点实验室开发基金"云瑞创新亲本抗旱性评价与利用研究"(2015DGO15-05);国家糖料产业技术体系(CARS-170101);"云岭英才计划"高端外国专家"专项--甘蔗品种改良与应用"

摘　　要：为明确甘蔗‘云蔗05-51’的高产高效栽培技术,加快该品种在生产上的大面积推广应用,于2014—2016年度在陇川弄门基地,对‘云蔗05-51’进行4个播种期和4个种植密度处理,设置2因素随机区组试验,研究播期和种植密度对‘云蔗05-51’的产量及其构成因素的影响。结果表明:播期对‘云蔗05-51’的茎径、有效茎数及蔗茎产量有显著影响,但对株高和锤度影响不显著;种植密度对‘云蔗05-51’的有效茎数、锤度和蔗茎产量有显著影响。蔗茎产量在1月20日播种最高达到150.70 t/hm^2,1月20日后随着播期的推迟产量增减差别不大;在种植密度B1(150000芽/hm^2)时蔗茎产量达到最高值127.25 t/hm^2,蔗茎产量随着种植密度的减少而减产。从播期和密度的交互效应来考虑,‘云蔗05-51’最佳的播期是1月20日,下种种植密度为150000芽/hm^2。In order to clarify the high yield and high efficiency cultivation technology of sugarcane variety‘Yunzhe 05-51＇, and to accelerate the wide application of this variety in production, the effect of sowing dateand planting density on yield and yield components was studied in Longchuan base in 2014-2016 with fourdifferent seeding times and four planting densities. The results showed that the sowing date had a significanteffect on the stem diameter, effective stem number and yield of‘Yunzhe 05-51＇, but had no significant effect onplant height and brix. The planting density had a significant effect on effective stem number, brix and cane yieldof‘Yunzhe 05-51＇. The average yield of sugarcane was as high as 150.70 t/hm^2 in January 20 th, and there was nomuch difference of yield increase or decrease with the postponing of the sowing date after January 20 th. Whenplanting density was B1（150000 bud/hm^2）, the yield of sugarcane reached the highest value of 127.25 t/hm^2, andthe yield of sugarcane stem decreased with the decrease of planting density. Considering the interaction effectof sowing date and density on‘Yunzhe 05-51＇, the best sowing date was January 20 thand the planting densityis 150000 bud/hm^2.

关 键 词：甘蔗 '云蔗05-51’ 播期 种植密度 产量 产量构成 

分 类 号：S566.1[农业科学—作物学]