Effects of bactericide No.1 treated with different durations on seed ger-mination of watermelon and melon

WANG Mengxi; YUAN Qin; PAN Lei; YUAN Shengnan; WEI Haoyu; GUAN Wei; YANG Yu-wen; MA Yunlong; WANG Yan; ZHAO Tingchang

doi:10.16861/j.cnki.zggc.2025.0161

Abstract：Bacterial fruit blotch(BFB)is a seed-borne disease harmful to the production of watermelon and melon,with seed disinfection being the primary control measure.To evaluate the effects of different storage durations after treatment with Bactericide No.1 on the germination of watermelon and melon seeds,this study used the petri dish method to mea-sure the germination rate and shoot length of watermelon seed IVF-01,melon seeds IVF88 and IVF-NLL treated with the Bactericide for different storage times.The results showed that the treatment with Bactericide No.1 had no significant negative effect on the germination rate and overall bud length of IVF-1,IVF88,and IVF-NLL seeds stored for different times.Except for a few specific storage time points(such as a decrease in bud length after 1,7,90 days of storeage for IVF-01,inhibition of bud length after 1 day of storage for IVF-NLL,and a decrease in germination rate after 1 day of stor-age for IVF-01),the treatment effect was comparable to that of the water control.It was worth noting that a multiple stor-age time points(such as the germination rate of IVF-01 stored for 7,90 days,the germination rate of IVF88/IVF-NLL stored for 90 days,the bud length of IVf-01 stored for 15,30 days,and the bud length of IVF-NLL stored for 30,180 days),different degrees of improvement in germination or growth indicators were observed compared to the control.Therefore,Bactericide No.1 has a low potential risk to seed vitality and may even have a positive effect in preventing and treating bacterial fruit spot disease,providing scientific support for its safe application.