Effect of Different Plant Growth Regulators on Winter Potato Tubers
To scientifically guide the application of plant growth regulators in potato production in Pingba District,increase grain yield while ensuring food security,the potato'Feiwuruita'was used as the main experimental material to comprehensively compare the effects of different plant growth regu-lators on potato growth characteristics,agronomic traits,yield,and quality,and to screen suitable application methods for winter potatoes.The results showed that plant growth regulators could effec-tively reduce the height of potato plants,increased the thickness of main stems,and improved potato yield.At the same time,there had been varying degrees of improvement in terms of quality.Howev-er,paclobutrazol,dwarfing hormone,and aminobutyric acid would reduce the commodity yield of po-tatoes.Taking into account both product yield and output,the optimal external application regimen was 1500 mg/kg choline chloride treatment.