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病劣种子会给生产带来致命的损失。下述的几个品种应从以下的方面多加识别: 花生:①黑霉病:病荚呈黄褐色,潮湿时荚上生白色绢状物。②黑(褐)斑病:病荚呈褐色或黑褐色。其上部生有褐色或灰白色粉状物。③白绢病:病荚呈黑褐色。其上部生有灰白色粉状物。④斑驳毒病:病粒的种皮呈褐色或黑褐色种粒,斑驳小。 大豆:①花叶病:病粒颜色呈褐斑色,以脐部为中心,向两侧延伸,斑纹颜色与种脐色一致。有黑色、灰蓝色或黄褐色三种。轻的斑纹小,重的斑纹大,有的几乎布满整个籽粒。②紫斑病:病粒种皮上有淡紫色或深
Poor seeds can cause fatal losses to production. The following varieties should be more identified from the following aspects: Peanut: ① black mold: pods were brown, wet pods born white silk. ② black (brown) spot disease: sick pods were brown or dark brown. The upper part of the birth of brown or gray powder. ③ white silk disease: pod dark brown. The upper part of students born with an off-white powder. ④ mottled disease: sick seed coat brown or dark brown seeds, mottled small. Soybean: ① Mosaic disease: Patient color was brown, to the umbilicus as the center, extending to both sides, mark the same color and umbilical color. There are black, gray blue or brown three. Light markings small, heavy markings large, and some are almost covered with the entire grain. ② purple spot: the seed coat of light purple or dark