摘要
以烟薯25为试材,分别于栽插后50、65、80天叶面喷施烯效唑(用量15.0 g/hm2,喷施浓度为25mg/kg),研究其对甘薯茎蔓生长及产量的影响。结果表明:50、65、80天喷药处理的平均蔓长分别比对照减少32.5%、17.4%和10.7%,鲜薯产量分别比对照增加9.97%、3.14%和3.59%,50天喷药处理的商品薯产量最高,比对照增加10.61%。说明叶面喷施烯效唑能有效调控甘薯茎蔓生长,提高鲜薯及商品薯产量,且以栽插后50天喷施效果最好。
The effects of uniconazole on growth and yield of Yanshu 25 were studied by foliage spraying uniconazole at the 50th（ T50）,65th（ T65） and 80th（ T80） after planting respectively. The dosage of uniconazole was 15. 0 g/hm2,and its concentration was 25 mg/kg. The results showed that compared with CK,the average vine length of T50,T65 and T80 reduced by 32. 5%,17. 4% and 10. 7% and the fresh yield increased by 9. 97%,3. 14% and 3. 59% respectively. The commodity sweet potato yield of T50 was the highest and increased by 10. 61%. It could be inferred that foliage spraying uniconazole could effectively control the vine growth and increase the fresh and commodity yield of Yanshu 25. And spraying at the 50th day after planting had the best effect.
出处
《山东农业科学》
2013年第11期39-41,共3页
Shandong Agricultural Sciences
基金
国家甘薯产业技术体系建设专项(CARS-11)
