论文部分内容阅读
甘蔗梢腐病(Fusarium moniliformis Sheld)是百色市局部性甘蔗病害.虽然发生面积不大,但为害较重.一般病株率在15—35%,严重的达65—90%,不同程度地影响甘蔗的产量和质量.在病区大田调查中,我们发现不同品种发病率差异很大.为了摸清不同品种的抗病性,以便指导生产.我们在重病区的东增屯种植了6个品种,作3个重复,在同一管理条件下,连续两年(1984、1985年)对甘蔗品种抗梢腐病性作了观察.各品种两年的病株率、烂梢株率平均数分别为:粤糖63/237,病株率为0;桂糖1号,病株率为1.6%,烂梢株率为0;桂糖7号,病株率为5.5%,烂梢株率为0;桂糖11号,病株率为41.0%,烂梢株率为7.7%;粤糖7号,病株率为73.6%,烂梢株率为49.3%;台糖134;病株率为84.3%,烂梢株率为68.4%.在两年观察中,各品种的抗、感表现基本稳定.
Fusarium moniliformis Sheld is a partial sugarcane disease in Baise city.Although the occurrence area is not big, but the damage is heavy.The general plant strain rate is 15-35%, the serious reaches 65-90%, affects to varying degrees Sugarcane production and quality in the ward field survey, we found that the incidence of different species vary greatly in order to find out the different varieties of disease resistance, in order to guide the production of We have in the seriously ill Dongting Tun planted six varieties , Made three repetitions under the same management conditions, for two consecutive years (1984, 1985) on the comb-resistant rot of sugar cane varieties were observed for each species of two years the rate of plant strains were average : Guangdong sugar 63/237, the diseased plant rate was 0; Gui sugar 1, the diseased plant rate was 1.6%, the bad plant rate was 0; Guitang 7, the diseased plant rate was 5.5%, the rotten plant strain rate was 0 ; Guitang 11, the rate of diseased plants was 41.0%, the rate of rotten plants was 7.7%; the rate of diseased plants was 73.6%, the rate of diseased plants was 49.3%; the rate of diseased plants was 84.3% , And the rate of rotten plants was 68.4% .In the two years of observation, the resistance and sensory performance of all varieties were basically stable.