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西兰花(Brassica oleracea L.var.botrytis L.)属十字花科芸薹属甘蓝种中以绿色花球为产品的一个变种,又名绿菜花、茎椰菜、青花菜、绿花菜。性喜冷凉,属半耐寒性蔬菜。其发芽的最适温度为20~25℃,植株生长适温为20~22℃,花球在-5~-3℃的低温下会受冻害。西兰花要求光照充足,但对日照长短要求不严。不耐旱、喜湿润不耐涝,对水分要求较严格。西兰花是河北省坝上地区的出口蔬菜之一,主要
Broccoli (Brassica oleracea L.var.botrytis L.) is a cruciferous cabbage Brassica oleracea flowers as a variant of the product, also known as green cauliflower, broccoli, broccoli, green cauliflower. I like cold, is a semi-cold vegetables. The optimum temperature for germination is 20 ~ 25 ℃, the optimum temperature for plant growth is 20 ~ 22 ℃, and the flower buds will be frostbite at the low temperature of -5 ~ -3 ℃. Broccoli requires adequate light, but lax requirements of the length of the sun. Not drought-tolerant, hi moisture is not resistant to waterlogging, more stringent water requirements. Broccoli is one of the export vegetables in Bashang area of Hebei Province, mainly