小麦06-135超高产群体形成特征及栽培技术研究

The super-high yield population formation characteristics and cultivation techniques of new wheat line 06-135

为探索小麦06-135的超高产群体形成特征及配套栽培技术,通过高产攻关田和播期、密度及施氮量等试验,分析高产田产量构成及群体形成特征。结果表明:小麦06-135产量>8 000 kg/hm^2的群体形成特征为穗数435万—475万穗/hm^2,穗粒数44—46粒/穗,千粒重42—43 g;冬前茎蘖数/最终穗数约1.1,高峰苗/最终穗数约2.0,分蘖成穗率约38.5%,分蘖穗比例约60%。小麦06-135高产栽培的适宜播期为10月20日—28日,适宜基本苗为165万株/hm^2,适宜施氮量为307.30 kg/hm^2。

In order to explore the formation characteristics and cultivation techniques of super-high-yield population with wheat 06-135,the yield components and population formation characteristics were analyzed through high-yield cultivation and experiments of sowing date,planting density and quantities of nitrogen applica-tion.The results showed that the formation characteristics of wheat 06-135 （yield 〉8 000 kg-km2 group）were：The spikes number,grain number per spike and 1 000 grain weight were 4.35 ×106—4.75 ×106 ？hm2 ,44—46 grain-spike,42—43 g,respectively;The ratio between the tillers before winter and the final spike number was about 1.1,the ratio between the peak seedlings and final spikes was about 2.0,the ratio of spikes to tillers was about 38.5%,while the proportion of tillers about 60%.The suitable sowing date of wheat 06-135was from October 20th to 28th,the suitable sowing density was 1.65 ×106 ？hm2 ,the suitable nitrogen application was 307.30 kg/hm2 .