摘要
为了提高微型薯产量及薯块商品率,以甘薯‘宁紫2-2’为供试材料,采取随机区组设计,研究了密度和收获期对微型薯产量及商品率的影响。结果表明,适宜的种植密度和收获期可以显著提高微型薯的产量和商品率。鲜薯产量在9月中旬以前以株距16 cm时最高,各处理间差异显著;在9月中旬以后,鲜薯产量以株距8 cm时最高。薯块数则随株距的增大而减小。商品率以株距16 cm时表现最好,其次是株距20 cm。试验结果表明,微型薯的最佳株距为16 cm,有助于扩大光合面积、提高群体光合积累,从而提高鲜薯产量和商品率。
For improving yield and commodity rate of micyo-sweetpotato, taking ＇Ningzi 2-2＇ as material, through randomized block design, the yield and commodity rate were studied. The results showed that the timely plant destiny and harvest time could increase yield and commodity rate of mini-sweetpotato. The yield of fresh sweetpotato was the highest at plant spacing of 16 cm before mid-September, and there were significant difference among each treatments, while the yield of fresh sweetpotato reached highest after mid-September was the plant spacing of 8 cm. With the increase of plant spacing, the number of sweetpotato reduced. The commodity rate under plant spacing of 16 cm was the highest, followed by 18 cm. Experimental result showed that the best plant spacing was 16 cm, which could enlarge photosynthetic area, increase photosynthetic accumulation, improve yield and commodity rate of fresh sweet potato.
出处
《中国农学通报》
CSCD
2014年第6期229-232,共4页
Chinese Agricultural Science Bulletin
基金
国家"863"计划项目"薯类(甘薯
木薯)生物育种技术与新品种选育研究"
关键词
微型薯
密度
收获期
产量
商品率
mini-sweetpotato
plant spacing
harvest time
yield
commodity rate
作者简介
赵丰玲，女，1967年出生，山东肥城人，高级农艺师，推广硕士，研究方向为甘薯育种。通信地址：271000泰安市农业科学研究院，Tel：0538—8503309，E—mail：wmc3355@163．com。
通讯作者：刘桂玲，女，1965年出生，山东招远人，高级农艺师，大学，研究方向为甘薯育种与栽培。近几年在国家级刊物上发表论文20余篇，2012年获泰安市科技进步一等奖。通信地址：271000泰安市泰莱路16号泰安市农业科学研究院，Tel：0538．8503309，E-maihsdguiling@163．com。
