Effect of Soaking Seeds in t e Bacillus velezensis GH1-13 Solution and Foliar Spray of Chlorella vulgaris on the Seed Potatoes Production

Effect of Soaking Seeds in t e Bacillus velezensis GH1-13 Solution and Foliar Spray of Chlorella vulgaris on the Seed Potatoes Production

This study was conducted to evaluate effect of microorganisms in the production of seed potatoes based on the mobility rate of disease of common scab and bacterial soft rot and yield of seed potatoes. Two kinds of seedpotatoes, the soil culture and the hydroponic were soaked in the culture solution of Bacillus velezensis GH1-13strains (Soaked GH1-13) and dried at dark room. Seed potatoes were sowed in the field and culture solution ofChorella vulgaris was sprayed on the potato plants at the fifth and the sixth week after sowing. SoakedGH1-13 caused to decrease by 16.5% in the mobility rate of common scab and by 1.0% in that of bacterial softrot than the control. The chlorella spraying caused to reduce by 12.6% in that of common scab and lowered by1.1% in that of the bacterial soft rot than the control in the soil cultured seed potatoes. The productionpopulation of 30 to 330 grams potatoes per ha, specification of seed potatoes, was more 5,000 ea by the soakedGH1-13 and more 2,666 ea by the chlorella spraying than the control in the soil culture seeds. That was more555 ea by chlorella spraying than the control in the hydroponic seeds. In the cultivation of soil culture seedpotatoes, the soaked GH1-13 caused to increase the yield of seed potatoes by 1,167 kg and spray chlorellacaused to increase by 1,405 kg per ha with statistically significant difference. In the cultivation of hydroponicseed potatoes, spraying chlorella caused to increase the production of seed potatoes by 412 kg per ha.

This study was conducted to evaluate effect of microorganisms in the production of seed potatoes based on the mobility rate of disease of common scab and bacterial soft rot and yield of seed potatoes. Two kinds of seedpotatoes, the soil culture and the hydroponic were soaked in the culture solution of Bacillus velezensis GH1-13strains (Soaked GH1-13) and dried at dark room. Seed potatoes were sowed in the field and culture solution ofChorella vulgaris was sprayed on the potato plants at the fifth and the sixth week after sowing. SoakedGH1-13 caused to decrease by 16.5% in the mobility rate of common scab and by 1.0% in that of bacterial softrot than the control. The chlorella spraying caused to reduce by 12.6% in that of common scab and lowered by1.1% in that of the bacterial soft rot than the control in the soil cultured seed potatoes. The productionpopulation of 30 to 330 grams potatoes per ha, specification of seed potatoes, was more 5,000 ea by the soakedGH1-13 and more 2,666 ea by the chlorella spraying than the control in the soil culture seeds. That was more555 ea by chlorella spraying than the control in the hydroponic seeds. In the cultivation of soil culture seedpotatoes, the soaked GH1-13 caused to increase the yield of seed potatoes by 1,167 kg and spray chlorellacaused to increase by 1,405 kg per ha with statistically significant difference. In the cultivation of hydroponicseed potatoes, spraying chlorella caused to increase the production of seed potatoes by 412 kg per ha.