甘薯品种苏渝76的高产生理特性及栽培技术研究  

STUDY ON HIGH YIELD PHYSIOLOGIC CHARACTERS AND CULTIVATION TECHNOLOGY OF SWEETPOTATO VARIETY SUYU76

作　　者：谢一芝[1] 尹晴红[1] 吴纪中[1] 戴起伟[1] 张启堂 付玉凡 杨春贤 

机构地区：[1]江苏省农业科学院粮食作物研究所,南京210014 [2]重庆市甘薯研究中心,重庆400715

出　　处：《上海农业学报》2003年第4期33-35,共3页Acta Agriculturae Shanghai

基　　金：江苏省重点攻关项目 (BE2 0 0 13 17) ;国家"863"计划项目资助 ( 2 0 0 1AA2 41181)

摘　　要：以蒸煮、烘烤用型甘薯新品种苏渝 76为研究对象 ,以食、饲、工业加工兼用型甘薯品种苏渝 30 3为对照 ,采用常规生理特性及高产栽培技术研究方法 ,对苏渝 76在江苏南京粘壤土条件下的高产生理与栽培技术效应作了研究。结果表明 ,其高产生理特性为栽后发根还苗快 ,结薯早 ,平均净同化率高 ,干物质积累在栽后5 0～ 90d期间明显快于对照品种苏渝 30 3;高产栽培技术的肥料处理间的茎叶产量、生物产量、块根干物率及商品薯块数差异极显著 ,其它性状差异不显著 ,茎叶产量和生物产量均随施肥量的增加而提高 ;不同栽插密度对结薯总块数、商品薯块数及单块薯重的影响极显著 ,总薯块数、商品薯块数随密度的提高而增加 。Suyu 76,a new table sweet potato variety was studied in this research. Suyu 303 being cultivated in the sweet potato production at present was used as the control. The high yield physiology and cultivation technology of Suyu 76 were studied by conventional methods of physiology and cultivation technology in the field of clay loam in Nanjing. Results demonstrated that the high yield physiologic characters of Suyu 76 were rapider growth, earlier tuber formation and higher net assimilation rate after planting, compared with Suyu 303 (CK). During the 50～90 days after planting, the dry matter accumulation of Suyu 76 was faster than that of Suyu 303. Studying on cultivation technology indicated that fertilizer had significant effect on the vine yield, biological yield, dry matter content of tubers and marketable tubers. But no significant effect had been found on other characters. The yields of vine and biology could be enhanced by increasing the amount of fertilizer applied. There were significant differences among effects of the plant densities on total tubers, marketable tubers and single tuber weight content. The higher plant density was, the more number of total tubers and marketable tubers was. There was a interaction of fertilizer and plant density on dry matter content of tubers in this experiment.

关 键 词：甘薯 品种 苏渝76 生理特性 栽培技术 产量 江苏南京市 粘壤土 干物质 根系 生长 肥料 种植密度 茎叶产量 生物产量 块根 商品薯块数 单块薯重 互作效应 

分 类 号：S531.01[农业科学—作物学]