Effect of Soaking Seeds with Rooting Powder on the Growth and Yield of Cassava

HUANG Jie; LI Tian; WANG Juan; WEI Yun-xia

doi:10.13651/j.cnki.fjnykj.2024.05.011

Abstract：In order to optimize the technology of increasing stress resistance and yield of cassava,five concentrations of rooting powder solution (0,10.0,20.0,40.0,60.0 mg·L-1) for soaking seeds and two soaking time (6,12 h) were set up by taking the non-soaking treatment as the control group (CK).Then,their effects on the agronomic traits,storage root yield and quality of cassava were studied.The results showed that:compared with no seed soaking,after soaking in the rooting powder solution with the concentration of 20.0,60.0 mg·L-1 for 6 h and soaking in the solution with the concentration of 20.0-60.0 mg·L-1 for 12 h,the stem diameter of cassava was significantly increased.After soaking in the rooting powder solution with the concentration of 20.0 mg·L-1 for 6 h,the length and diameter of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 0,10.0,60.0 mg·L-1 for 12 h,the length of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 0,40.0,60.0 mg·L-1 for 6 h and soaking in the solution with the concentration of 40.0,60.0 mg·L-1 for 12 h,the diameter of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 20.0 mg·L-1 for 6 h,the fresh storage root yield was significantly increased by 42.3％,the starch yield was significantly increased by 49.9％,and the harvest index was significantly increased by 10.5％.In conclusion,soaking the seed stem of cassava with 20.0 mg·L-1 rooting powder solution for 6 h was recommended as the yield-increasing technology.