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1996年陇南麦区小麦条锈病再度流行危害,其流行态势迅猛,发生范围广,流行程度重,为1990年大流行以来最重的一年。新的毒性小种条中30、31号上升,导致生产品种抗性丧失;气象条件适宜;菌源量大等是今年小麦条锈病流行的主要因素。文中针对该区目前生产上利用的品种及后备品种(系)抗病性变异情况,提出了相应的对策
In 1996, wheat stripe rust in Longnan wheat area was again epidemic. The epidemic trend was rapid, with a wide range of occurrence and heavy prevalence. It was the heaviest year since the 1990 pandemic. The new toxicity of small species 30,31 increase, resulting in loss of resistance to production varieties; suitable meteorological conditions; large amount of bacterial sources is the main factor of this year’s wheat stripe rust epidemic. In this paper, according to the variation of disease resistance in varieties and reserve varieties (lines) used in the area at present, the corresponding countermeasures are put forward