In this experiment,'Zhongmian 113'was used as the test variety.After the cotton was soaked with trehalose,melatonin and ascorbic acid,the differences of seedling formation,main agronomic traits,biomass accu-mulation,yield,constituent factors and main fiber quality traits of cotton treated with the three exogenous sub-stances were compared.The results showed that compared with CK treatment,the seedling formation rate of cotton treated with exogenous substances was significantly increased by 1.3％～6.1％.Plant height,stem diameter and branch number were significantly increased by 8.1％～9.2％,10.1％～14.6％and 13.7％～22.2％.The biomass in-creased by 1.6％～20.9％,and the distribution ratio of biomass in the reservoir increased by 3.3％～16.4％.The yield of seed cotton was significantly increased by 11.7％～18.4％.The average length and breaking strength of the upper half of the cotton fiber were above 29 mm and above 29 cN·tex-1,and the Micronaire was grade B.In sum-mary,seed soaking treatments with exogenous substances significantly improved the seedling formation rate,promo-ted the growth and development of cotton plants,enhanced biomass accumulation and distribution,and increased yield,with the 100 μmol·L-1 melatonin treatment having the most pronounced effect.
cottonseed soaking with foreign substancescold damagegrowth and developmentyieldquality
维普
万方数据
