新闻媒介披露了不少因购买病劣种子造成病害减产或绝产,给农民造成巨大损失的事例。因此,在购买种子时,应懂得一些识别带病种子的知识,以保护自己的利益。 怎样识别病劣种子呢?1.玉米:(1)圆斑病:病穗的籽粒和穗呈黑色,籽粒黑腐干缩。一般果穗中部或顶尖被害。病部凹陷、果穗变曲。籽粒长满黑色霉层。(2)赤霉病:病粒表皮被红色或粉红色丝状物包围,种粒发芽时常长出微黄色、粉红 The news media disclosed many cases of huge losses to farmers caused by the reduction or abolition of diseases caused by the purchase of sick seeds. Therefore, in the purchase of seeds, you should know some knowledge of sick seeds to protect their own interests. How to identify sick seeds it? 1. Corn: (1) Circular Drizzle: sick ear grains and ears are black, black kernel dry shrinkage. The middle of the ear or the top of the victim. Sick depression, ear variation. The grains are covered with black mildew. (2) Fusarium head blight: the epidermis of the granule is surrounded by red or pink filaments, the germinating seed often grows light yellow, pink