十二号玉豆是广州市蔬菜研究所杂交选育而成。1987年绥中县原种场引种试种成功。目前已成为绥中地区温室主栽品种。一、品种性状豆荚优质、味甜、纤维少，耐贮运。植株抗逆性强，耐寒性、耐湿性、耐锈病更为突出。适应性广，高产稳产，商品性极好，适合温室栽培。植株蔓生，长 Twelve Yuzhu Guangzhou Vegetable Research Institute is bred from breeding. Suizhong County in 1987, the introduction of the original species of plant trial success. Has become the main varieties of greenhouse in Suizhong. First, the variety traits pods quality, sweet, less fiber, storage and transportation. Plant resistance to strong, cold, moisture resistance, rust-resistant disease is more prominent. Wide adaptability, high and stable yield, excellent product, suitable for greenhouse cultivation. Plant vine, long