花生叶片上长了斑点这是成熟的象征吗?

• 机 构: 山东省花生所植保组
• 出 处: 花生科技
• 发表日期: 1975年03期
• 关键词: 斑点 花生 花生叶 褐斑病 象征 片上 生育过程 黑斑病 褐色斑点 病症

在花生生育过程中,特别是临成熟前一个月左右,叶片上经常发生形状大小不一的黑色或褐色斑点,不少人把这种现象说成是花生成熟的象征,没有这种现象花生不成实,实际这是一种误解。这种斑点不是成熟的表现,而是一种病症,它是由一种真菌浸染引起的病害,有黑斑病与褐斑病两种,所以叶片上经常可见到黑、褐两种颜色。褐斑病在开花前即可发生,黑斑病发生晚些,但发病高峰都在收获前一个月左右,尤其是花生老产区几乎年年都发生。叶片上发生病斑后叶绿素被破

In the process of peanut growth, especially about a month before ripening, the leaves often have black or brown spots of various shapes and sizes. Many people describe this phenomenon as a symbol of peanut maturity. Without this phenomenon, In fact, this is a misunderstanding. This spot is not a mature manifestation, but a disorder, which is caused by a fungal disseminated disease, there are two kinds of black spot and brown spot, so the leaves can often be seen in black and brown two colors. Brown spot can occur before flowering, black spot occurs later, but the peak incidence of about a month before harvest, especially in peanut-prone areas occur almost every year. Chlorophyll is broken after spotting on leaves