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为确保明年生产用种的质量,现介绍几种常用的降低玉米种子含水量的方法。 1.站秆扒皮晾晒 在沈阳、铁岭地区一般以9月中旬,玉米进入蜡熟期时进行站杆扒皮,过早、过晚效果都不理想。扒皮时一手扶住果穗顶端,另一手将苞叶分2～3次扒至果穗基部,使玉米果穗裸露出来。一般经15天左右晾晒,可使玉米含水量降到安全标准以下。1982年,铁岭县种子公司进行了玉米扒皮与不扒皮对比试验,结果扒皮的种子由原来含水量36.4％下降到14.2％,平均每天降低1.48％;而设有进行扒皮的玉米种子含水量由36.4％下降到26.5％,每天下降0.66％。
In order to ensure the quality of the species for production next year, several methods for reducing the water content of corn seeds are presented. 1. Stand stalk skin drying in Shenyang, Tieling region in mid-September, the corn into the wax maturity stage pole, too early, too late effect is not satisfactory. Grilled skin in one hand to help hold the top of the ear, the other hand will bracts 2 or 3 times to the bottom of the ear, so that corn ear exposed. After about 15 days generally drying, corn moisture content can be reduced below the safety standards. In 1982, the Tieling County seed company corn and no skinned peel test, the results of the peel seed from the original moisture content of 36.4% down to 14.2%, an average of 1.48% per day reduction; and with the peel of the corn seed moisture content from 36.4 % Down to 26.5%, down 0.66% per day.