摘要
为鉴定大豆新品种黔豆7号在西南山区的最适宜播期,对黔豆7号设置6个不同时期(4月4日,4月14日,4月24日,5月4日,5月14日,5月24日)播种试验,研究播期对该品种产量及主要性状的影响。结果表明:1)播期对黔豆7号生物产量、干籽粒产量、鲜食豆产量的影响极显著,收取干籽粒最高产量的最适宜播期范围是4月14日—4月24日,以采摘鲜食豆为目标的较适宜播期范围是4月4日—5月4日,期间可以分多期播种和分期采摘;2)生物构成中4月14日播期的根、叶、茎杆最多(1 267.75kg/hm2、9 483.15kg/hm2、8 014.85kg/hm2),豆荚则是4月24日最多13 064.4kg/hm2;3)播期对黔豆7号生育性状的影响主要是对其营养生长期的影响较大,对生殖生长期的影响相对较小;4)播期对黔豆7号主要各农艺性状有较大影响,4月4日株高最高为59.36cm,单株有效结荚数、单株粒数与百粒重最多是5月4日播种(分别为41.53个、90.26粒和15.63g)。黔豆7号是一个对温光反应敏感的春大豆中熟品种。
Six sowing dates were tested to study the optimum sowing date for Qiandou 7 in southwest mountainous area by measuring the yield of root (including rhizobia), leaf, stem, green pod, fresh soybean at full bean perform stage, dry soybean yield at full maturity stage and main agronomic characters. The results showed that 1) Sowing date had the very significant effects on biological, dry soybean and fresh soybean yield and the optimum sowing date of maximum dry soybean and fresh soybean yield was from 14, April to 24, April and 4, April to 4, May respectively; 2) The highest yield of root, leaf and stem on 14, April sowing date was 1 267. 75 kg/hme, 9 483.15 kg/hm2and 8 014. 85 kg/h㎡ separately and the highest pod yield on 24, April sowing date was up to 13 064.4 kg/hm2 ;3) Sowing date had the greater effect on vegetative growth stage and lesser effect on the reproductive stage; 4) Sowing date had the greater effects on main agronomic traits and the optimum sowing date for the highest height (59.36 cm), effective pods per plant (41.53), grains per plant (90.26) and 100-grain weight (15.63g) was 4, April, 4, may, 4, May and 4, May separately. Qiandou 7 is a spring medium soybean variety sensitive to temperature and light response.
出处
《贵州农业科学》
CAS
北大核心
2013年第12期55-59,共5页
Guizhou Agricultural Sciences
基金
贵州省科技计划资助课题"粮菜兼用型大豆新品种选育及配套高产高效栽培技术研究"[黔科合NY字(2010)3011]
贵州省农业科学院专项"优良大豆新材料的创制与高产大豆新品种的选育"[黔农科院院专项(2009)007]
贵州省农业动植物育种专项项目"大豆新品系黔98023良种繁育及高产栽培技术研究"[黔农育专字(2010)025]
贵州省农科院基金项目"贵州鲜食大豆高产高效栽培技术研究"[黔农科合(基金)09001]
贵州省农业科学院专项"贵州大豆耐荫材料的创制与选育"[黔农科院院专项(2011)019]
关键词
播期
黔豆7号
产量
农艺性状
生育期
sowing date
Qiandou 7
yield
agronomic strait
growth period