播期和密度对云南冬播燕麦主要经济性状及产量的影响  

Sowing Date and Planting Density Affect Main Economic Traits and Yield of Winter Oat in Yunnan

作　　者：孙道旺[1] 李春花[1] 尹桂芳[1] 王艳青[1] 卢文洁[1] 洪波 王莉花[1] Sun Daowang;Li Chunhua;Yin Guifang;Wang Yanqing;Lu Wenjie;Hong Bo;Wang Lihua(Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation,Ministry of Agriculture,Kunming 650205;Baoyun Station for Popularizing Agricultural Technique,Huize Yunnan 654200)

机构地区：[1]云南省农业科学院生物技术与种质资源研究所/云南省农业生物技术重点实验室/农业部西南作物基因资源与种质创制重点实验室,昆明650205 [2]云南省会泽县宝云街道农业技术推广站,云南会泽654200

出　　处：《中国农学通报》2019年第36期21-25,共5页Chinese Agricultural Science Bulletin

基　　金：国家燕麦荞麦现代农业产业技术体系“荞麦病虫害防控岗位”(CARS-07-C-2)

摘　　要：为探知云南冬燕麦的适宜播期和种植密度,以‘白燕15号’、‘坝莜6号’和‘远杂2号’3个不同生育期的燕麦品种为材料,采用单因素随机区组设计,研究了3个播期和3个种植密度对云南冬播燕麦主要经济性状和产量的影响。结果表明:播期对‘白燕15号’和‘坝莜6号’两品种的主穗小穗数、穗轮层数影响显著(P<0.05),对3个供试材料其余的经济性状影响不显著(P>0.05);密度对3个供试材料的单株分蘖数和单株有效分蘖数影响显著(P<0.05),对其余的经济性状影响不显著(P>0.05)。根据产量结果,优化处理组合为:‘白燕15号’适宜播期为10月29日,密度为64万株/hm^2;‘坝莜6号’适宜播期为10月14日,密度为64万株/hm^2;‘远杂2号’宜适宜播期为10月14日,密度为48万株/hm^2。To find out the suitable sowing date and planting density for winter oats in Yunnan,3 oat cultivars of‘Baiyan No.15’,‘Bayou No.6’and‘Yuanza No.2’with different growth periods were used as experimental materials.The single factor randomized block design was used to study the effects of 3 types of sowing dates and planting densities on the main economic traits and yield of winter oat.The results showed that the main spike spikelet number and the spike wheel layer of‘Baiyan No.15’and‘Bayou No.6’were significantly influenced by the sowing date(P<0.05);however,there was no significant influence on the other economic traits of the 3 cultivars(P>0.05).The tiller number per plant and the effective tiller number per plant were significantly influenced by the density(P<0.05)and the influence on other traits was not obvious(P>0.05).According to the yield result,the optimized treatments are as follows:the suitable sowing date of‘Baiyan No.15’is on October 29th,with the density of 6.4×105 plants/hm^2;the suitable sowing date of‘Bayou No.6’is on October 14th,with the density of 6.4×105 plants/hm^2;the suitable sowing date of‘Yuanza No.2’is on October 14th,with the density of 4.8×105 plants/hm^2.

关 键 词：燕麦 播期 密度 经济性状 产量 

分 类 号：S359[农业科学—作物栽培与耕作技术]