曼陀罗种子形态及营养成分

对曼陀罗种子形态特征及营养成分进行了观察和测定。结果表明:①曼陀罗种子外形呈肾形,种皮灰褐色至黑褐色,革质,表面粗糙,电镜下观察具梯纹凸起;属双子叶有胚乳种子。种子长宽厚大小为3.14 mm×2.55 mm×1.29 mm,单粒重6.15 mg。②曼陀罗种子萌发所需时间较长,土培、室温约需8 d;种子萌发时子叶出土,形成子叶出土幼苗。③曼陀罗种子粗脂肪含量为190.8 mg.g-1,明显高于可溶性糖(24.4 mg.g-1)和蛋白质(82.2 mg.g-1)等内含物的含量;还含有K,Na,Ca,Mg,Fe,Zn,Mn,Cu等多种矿质元素,且K,Na,Ca的含量明显高于其它矿质元素。

The Morphological Characters and Component Analysis of Datura stramonium L.Seeds

The morphological characters and component analysis of the seeds of Datura stramonium L.have been studied.The results showed that Datura stramonium L.seeds were kidney-shaped.The seed coats were gray-brown to black-brown,leathery,rough surface,a ladder pattern raised with the electron microscope,belonged to dicotyledon and albuminous seeds.The size of seeds was 3.14 mm×2.55 mm×1.29 mm.The weight of each seeds was 6.15 mg.The germination time was about 8 days under hydroponics in the rmostat.Its seedings belonged to the epigaeous seeding.The contents of fat in the seeds were about 190.8 mg·g-1,significantly higher than the contents of sugar（24.4 mg·g-1）,and protein（82.2 mg·g-1）.There were also plenty of mineral elements such as K,Na,Ca,Mg,Fe,Zn,Mn,Cu in the seeds,and the content of Ca was higher than other mineral elements.