播栽期与播栽量对武运粳24产量的影响  

Effect of Planting Date and Quantity on the Yield of Wuyunjing-24

作　　者：韩国路 宋桂香 宋宏梅 闵思桂 嵇瑞华 倪艳云 

机构地区：[1]高邮市农业委员会,江苏扬州225600

出　　处：《北方水稻》2013年第1期26-29,共4页North Rice

基　　金：江苏省农业三新工程里下河稻麦双迟条件下周年高产高效生产技术集成与推广项目(SXGC(2012)289);里下河稻麦周年高产高效技术集成与推广;国家科技支撑计划重大项目(2011BAD16B03);江苏重大科技支撑与自主创新项目(BE2009425;BE2009426)

摘　　要：高邮市开展武运粳24不同播栽期、播栽量的试验,结果表明:武运粳24产量受播期和播栽量影响都达到极显著水平,随着播期的推迟呈现下降趋势。其中以A1B1(5月22日播种,6月9日移栽)的处理产量为最高,达709.4kg/667 m2,主要因为总粒数与粒重的提高;对产量结构影响主要体现在随着播期的推迟,单位面积有效穗数呈现先升高再下降的趋势,而穗粒数与千粒重呈现下降趋势。The test of different planting date and quantity were made and the results indicated that the effect on yield reach an extremely remarkable level, the highest yield was 709.4 kg/667 m^2 with treatment A1B1, secondly were 699.9 kg/667 m^2 with treatment A2BI. Effect of planting date and quantity on the yield mainly shows that effective panicles per unit area first increased and then decreased along with delay of sowing date, but the grains per panicle and 1000- grain weight in a downtrend. Effective panicles can increase along with planting quantity, but grains per panicle decrease, 1000-grain weight decreased with the increase of planting quantity in the same sowing date.

关 键 词：播栽期 播栽量 产量 总粒数 粒重 有效穗数 

分 类 号：S511.062[农业科学—作物学]