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随着农业种植业结构调整步伐的加快,2016年河南省花生面积有所增加。笔者通过在花生种植区的调查发现,花生早衰是花生生产中常见现象,可造成花生减产15%～20%,严重者减产50%以上,务必引起重视。一、症状表现花生早衰的症状常常表现为花生不到成熟期叶片就提早发黄、枯萎、脱落,严重影响花生后期的光合作用,从而造成花生结果少,荚果不饱满,饱果率降低,秕果增加,早熟果提前落果发芽或腐烂,严重影响产量和品质。二、发生原因(一)品种退化
With the accelerated pace of structural adjustment of agricultural planting industry, peanut area in Henan Province increased in 2016. Through the investigation in peanut planting areas, the author found that peanut premature aging is a common phenomenon in peanut production, which can reduce the peanut output by 15% ~ 20% and seriously reduce by 50% or more. First, the symptoms of peanut premature senility symptoms often appear less mature peanut leaves on the early yellowing, withered, fall off, seriously affecting the peanut late photosynthesis, resulting in less peanut results, pod is not full, the full fruit rate decreased Fruit increases, early fruit germination or decay ahead of decoction, seriously affecting the yield and quality. Second, the reasons for (a) varieties of degradation