摘要
向菠菜叶面喷两次己酸二乙氨基乙醇酯（ＤＡ６）４０ｍｇ／Ｌ或ＢＲ（０．０３ｍｇ／Ｌ）＋ＧＡ３（２０ｍｇ／Ｌ）水溶液，与对照相比，ＢＲ＋ＧＡ３处理增加了净光合速率、维生素Ｃ含量和地上部重量；显著地增加了株高、叶柄长度和重量以及２月播种菠菜的叶柄重量／地上部重量的比值。ＤＡ６处理不但比对照明显增加地上部重量，而且比ＢＲ＋ＧＡ３处理明显增强了光合速率，增加了１１月播种菠菜叶片长度和重量，降低叶柄占地上部重量的比值，显著增加了叶片可溶性糖和维生素Ｃ的含量。
The spinach( Spinacia oleracea L.cv.inermis peterm)plants were sprayed with aqueous solution of DA 6(dialkylaminoethyl alkanoate)or BR(epibrassinolide)+GA 3 at concentrations of 40mg/L,20mg/L and 0.03mg/L,respectively.Compared with the control,BR+GA 3 increased photosynthetic rate,vitamine C content and shoot weight,length and weight of petiole,also increased the ratio of petiole FW to shoot FW of the plants sowed in Feb.DA 6 treatment had greater photosynthetic rate and shoot weight than those of BR+GA 3 treatment especially under plastic tunnel in winter.DA 6 also increased length and weight of the blades,reduced the ratio of petiole weight to shoot weight and increased contents of soluble sugar and Vc.Therefore,DA 6 treatment could increase the yield,commercial value and quality of spinach.
出处
《园艺学报》
CAS
CSCD
北大核心
1998年第4期356-360,共5页
Acta Horticulturae Sinica
关键词
菠菜
DA-6
BR+GA3
生长
光合速率
Spinacia oleracea
DA 6(dialkylaminoethyl alkanoate)
BR+GA 3
Growth
Photosynthetic rate
