河北省农林科学院棉花研究所培育的抗虫棉新品种杂66已于近日通过了省农作物品种审定委员会的审定。 据省棉花所所长赵占军介绍,棉花研究所自1993年开始着手杂交抗虫棉新品种的选育,经过上千次试验,终于培育出具有海岛棉、陆地棉、蓬蓬棉等丰富遗传基础及抗棉铃虫中Bt基因的新品种杂66。它具有高抗枯萎、耐黄萎病、抗棉铃虫等特点,而且出苗好、长势稳、早熟性好、霜前花率高、结铃性强、铃大(重6g左右)、吐絮肥畅、品质好(绒长28.9mm)。1996—1997年两年省区试和生产试验中,平均667m~2产霜前皮棉91.7kg。较对照引进品种增产14.59％、667m~2增产皮棉13.4kg,增收187.6元。 Hebei Province Academy of Agriculture and Forestry Cotton Institute developed a new variety of insect-resistant cotton hybrid 66 has recently passed the approval of the Provincial Crop Variety Approval Committee. According to the introduction of Zhao Zhanjun, head of the province’s cotton institute, the Cotton Research Institute has started the breeding of new hybrid varieties of insect-resistant cotton since 1993. After thousands of experiments, rich genetic bases such as island cotton, upland cotton, And a new variety of Bt gene resistant to cotton bollworm. It has a high resistance to wilt, Verticillium wilt resistance, bollworm resistance and other characteristics, but also good emergence, long-term stability, good early maturity, flower frost before the high bell ring, boll large (weighing 6g or so) , Good quality (velvet length 28.9mm). During the two years of provincial trial and production test in 1996-1997, the average lint weight of 667m ~ 2 was 91.7kg. Compared with the control introduced varieties increased yield 14.59%, 667m ~ 2 increased lint 13.4kg, an increase of 187.6 yuan.