随着花生良种使用年限的增加,原品种退化严重,产量逐渐降低。实践证明,经过提纯复壮后的种子,可增产10%左右。 1 头年选择。第一年在纯度较高的种子田内,从苗期开始观察,选择具原品种的抗逆性、长势长相相近的植株作好标记,收获时把大田选好的单株,充分晒干,分株收藏好。 2 设立株行圃。第二年把头年选好的优良植株,每株种1行,每19 With the increase of the service life of peanut varieties, the original varieties degenerated seriously and the yield decreased gradually. Practice has proved that after purification and rejuvenation of the seeds, can increase about 10%. 1 year choice. The first year in the high purity seed fields, observed from the seedling stage, the selection of the original varieties of stress resistance, similar to growing plants for marking, the harvest of the field selected single plant, fully dried, points Stores good. 2 set up plant nursery. The second year the first year selected good plants, each plant a line, every 19