摘要
通过盆栽试验,以玉米种子为试验材料,配置不同浓度的矿物源腐植酸钾溶液(100、300、500 mg/L)进行浸种,以蒸馏水为对照,测定种子发芽率、发芽势、发芽指数以及幼苗的株高、根长、根数、鲜重和干重等指标,研究不同浓度矿物源腐植酸钾对玉米种子萌发及幼苗生长相关生理指标的影响.结果表明:100、300 mg/L腐植酸钾浸种在不同程度上有利于玉米种子萌发,有效提高种子发芽率、发芽势和发芽指数,促进根系生长,提高幼苗鲜重及干重等,以 300 mg/L的表现较好.
Abstract
Through pot experiments,corn seeds were used as material,and mineral potassium humate solutions(100,300 and 500 mg/L)with different concentrations were prepared for seed soaking.Distilled water was used as the control to determine the seed germination rate,germination potential and germination index,as well as plant height,root length,root number,fresh weight and dry weight of seedlings,to study the effects of different concentrations of mineral potassium humate on the corn seed germination and seedling growth.The results showed that 100 and 300 mg/L potassium humate seed soaking was beneficial to the corn seed germination to varying degrees,effectively improved seed germination rate,germination potential and germination index,promoted the root growth,increased the fresh and dry weight of seedlings,and 300 mg/L showed the best performance.
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