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菠菜(Spinacia oleracea L.)属藜科、环胚亚科、菠菜属,是一年生草本植物,根据叶形和种子是否有刺可分为有刺种(又称尖叶种)和无刺种(又称圆叶种)。有刺种叶片戟形,先端尖锐,叶柄细长,种子有刺,耐寒性较强,适宜越冬栽培;无刺种叶片卵圆形,肥大,多皱,先端钝圆,叶柄短,种子无刺,其耐热性强,产量高,适宜春季、夏季或晚秋栽培。菠菜霜霉病是由粉霜霉菠菜专化型引起的一种世界性真菌病害,在中国、美国、澳大利亚、加拿大、德国、日本、韩国、瑞典等国家均曾报道过。近年来,随着菠菜需求量的不断上升,其种植面积
Spinach (Spinacia oleracea L.) belongs to the family Chenopodiaceae, Cycloptera, spinach and is an annual herb. According to whether or not the leaves and seeds are stabbed, Spinachia oleracea L. can be divided into barbed (also known as sharp-leafed) Also known as circular species). A stinging species of halberd-shaped leaves, apex sharp, slender petiole, stinging seeds, cold hardiness, suitable for winter cultivation; non-stinging leaves oval, hypertrophy, wrinkled, apex obtuse, short petiole, , Its heat resistance, high yield, suitable for spring, summer or late autumn cultivation. Spinach downy mildew is a worldwide fungal disease caused by powdery mildew spinach specialization, which has been reported in China, the United States, Australia, Canada, Germany, Japan, South Korea, Sweden and other countries. In recent years, with the increasing demand for spinach, its acreage