陇单2号(武206×330)玉米单交种经多年试验、示范生产鉴定,表现丰产、抗病、抗倒、适应性广,制种产量高等优点,深受我省广大农民欢迎。目前在我省海拔1100米以下,玉米生育期积温1500——1800℃的许多地方推广,在生产上起到了积极的作用。为了使广大群众掌握制种技术,现将该组合的制种技术要点提示如下: 1.选择隔离区:采用空间隔离,要求在200米以上。风较大的地方,要求在300米以上。也可与屏障蒿秆结合隔离。除保证授粉安全以外,土质要肥沃,地势要平坦,要旱涝保收。 2.父母本错期播种:武206生育期短,330生育期长,为了使两系的雌、雄花期相遇,一 Longdan 2 (Wu 206 × 330) corn single cross after years of testing, demonstration production identification, performance of high yield, disease resistance, lodging resistance, wide adaptability, high yield seed production, welcomed by the majority of farmers in our province. Currently in our province at an altitude of 1100 meters below the corn growth temperature 1500 - 1800 ℃ in many places to promote the production has played a positive role. In order to make the masses grasp the seed production technology, the technical highlights of the combination seed production are as follows: 1. Select the isolation area: adopt the space isolation, and require more than 200 meters. Where the wind is larger, it requires more than 300 meters. Can also be combined with the barrier Artemisia stalk isolation. In addition to guarantee pollination safety, the soil should be fertile, the terrain should be flat, to save floods and floods. 2. Parents of the wrong sowing: Wu 206 short duration of growth, 330 growth period, in order to make the two-line female and male flowering encounter, a