刀豆在冀中南部的适应性研究

The Adaptability Studies of Sword Jackbean in the Middle and South Area in HeBei Province

本论文通过不同播或试验，观察刀豆在冀中南气候条件下的生长发育情况及病虫害发生情况，系统分析了刀豆在冀中南部的适应性．研究发现：刀豆对温度变化十分敏感，低温不利于发芽，高温抑制生殖生长，温和条件下适合其生长．在翼中甫，刀豆表现出与其原产地不同的独特的生长发育规律：山现二次开花结实现象和两个生长高峰，叶斑病轻度发生，易受蚜虫、三点盲蝽的侵害．

Through different planting date experiments,observing the Sword Jackbean's growth and development and the diseases and pests which attacked it.The adaptability of the Sword Jackbean in this area is systimatically analyzed in this paper The studies shows that the Sword Jackbean is very sensitive to the tempreture change:low tempreture is unsuitadle to its budding, high tempreture restrains its growth in reproductive phase,only warm condition is suitable to its growth. In the middle and south area in Hebei province,it shows a special growth and development rhythm which different from that in its nativ home.it has two blooming and fruitting stages, two peaks growth.it is lightly infected with leafspot and easely attacked by Aphids and Reuter.