土壤水分对黄姜根茎产量和皂素含量的影响  

Influence of Soil Water on Tuber Yield and Diosgenin Content of Dioscorea zingiberensis Wright

作　　者：徐桂新[1] 李向民[1] 乔振杰[1] 

机构地区：[1]西北农林科技大学,陕西杨凌712100

出　　处：《西北农业学报》2006年第6期163-165,211,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：采用盆栽试验方法研究土壤水分对黄姜产量及皂素含量的影响。结果表明，黄姜在生育期有2个需水高峰，一个在旺盛生长期，即7月下旬至8月上旬，另一个在开花结果期，即8月下旬至9月上旬；试验还表明，黄姜根茎产量最高时的土壤含水量为土壤田间最大持水量的50％～70％，皂素含量最高时的土壤含水量为田间最大持水量的30％～50％，综合考虑，适宜的土壤含水量应该为田间最大持水量的50％。This paper adopted potted plant method to study how soil water affects Dioscorea zingiberensisproduction and diosgenin yield. Result showed that in whole generational period Dioscorea zingibereasis have two water consuming fastigiums, one is in bloom vegetal period and another is anthesis and fructiferous phases. Soil moisture is 50%-70% of field most containing water which can get high tuber production and 30%-50% of field most containing water will get good diosgenin yield. In conclusion, the suitable soil moisture is 50% of field most containing water.

关 键 词：黄姜 称重法 水分利用效率 皂素含量 

分 类 号：S567.239[农业科学—中草药栽培]