一、品种特征特性 新场青是南汇县的地方青菜品种,在我县已有20多年的种植历史,尤其种植于果树田中,既符合立体农业的栽培模式,又具有较好的社会和经济效益。近几年来,经过县、镇、村三级科技人员不断培育筛选,现已培育成为抗病、抗寒、矮脚、束腰的优质青菜。新场青植株生长整齐,株型紧凑拧心,株高一般在15～18cm,开展度为18～21cm,菜头横径为9cm,单株叶数20～24张,叶柄宽长比为1:0.8左右,叶椭圆形,叶柄向内微皱。叶柄淡绿色。叶脉细,叶面平滑,肉质肥厚,单株重为200g左右,高抗芜菁花叶病毒,耐霜霉病,具有较强的耐寒性,全生育期70天左右。该品种炒煮易酥,纤维少,味鲜美,品质佳,商品性好,经霜打后叶肉细糯、味甜,风味更佳。每667m~2一般在2000～3000kg。 First, the characteristics of variety characteristics Xinchang Qing Nanhui County is the local varieties of vegetables, in our county has more than 20 years of planting history, especially planted in fruit fields, both in line with the three-dimensional agriculture cultivation mode, but also has good social and economic benefits . In recent years, scientific and technological personnel at the county, township and village levels have been continuously cultivated and screened, and have now become a quality vegetable that is disease-resistant, cold-resistant, short-legged and corset-shaped. New Field green plant growth and tidy, plant compact twist heart, plant height is generally 15 ~ 18cm, the development of 18 ~ 21cm, vegetable head diameter of 9cm, the number of leaves per plant 20 to 24, petiole width ratio of 1 : 0.8 or so, leaves elliptic, petioles inward micro-wrinkles. Petiole light green. Thin veins, smooth foliage, succulent meat, about 200g weight per plant, high resistance to turnip mosaic virus, downy mildew resistant, with strong cold tolerance, the whole growth period of about 70 days. The varieties fried crisp, less fiber, delicious, good quality, good merchandise, after the fight frost glutinous rice leaves, sweet, better flavor. Every 667m ~ 2 generally in 2000 ~ 3000kg.