海南岛四季如夏,非常适宜内地育种工作者在冬季前去进行加代繁、制种工作,但是,海南岛土质沙化严重,杂草见水就生,见风就长,老鼠、蚂蚁对下播、收获的种子危害相当严重。该地区害虫不分代,且耐药性强,稍不注意就会造成减产、绝收。如何降低南繁繁制种的成本和风险,有效提高 Hainan Island seasons such as summer, is very suitable for breeding workers in the Mainland to go in the winter before the addition of flourishing, seed production, but the serious sandy desertification in Hainan Island, weeds, see the water to live, see the wind on the long mouse, ants on the next broadcast The harvested seeds are very harmful. Pest insects in the region, and strong resistance, a little careless will result in reduced production, absolutely. How to reduce the cost and risk of complicated species in the south and effectively increase them