Effect of Different Antifreeze Treatments on the Sprouting Situation of Hybrid Hazelnuts
Through spraying antifreeze on 4-year-old hybrid hazelnuts,the effects of different types and concentrations of an-tifreeze on its sprouting situation were studied.The results showed that the sprouting ratio of hybrid hazelnuts sprayed with antifreeze twice was lower than that sprayed with antifreeze once.Spraying 3 different antifreeze agents could effectively re-duce the sprouting degree of hybrid hazelnuts.Among them,the average sprouting branch thickness was ranked from low to high as polyvinyl alcohol<liquid film<ABA.The average sprouting branch length was ranked from low to high as liquid film<polyvinyl alcohol<ABA.The average sprouting ratio was ranked from low to high as ABA<polyvinyl alcohol<liquid film.To reduce the average sprouting branch thickness and length of hybrid hazelnuts,it was advisable to spray polyvinyl alcohol with a concentration of 20%.To reduce its average sprouting ratio,it was advisable to spray 10%polyvinyl alco-hol,20%liquid film or 4 000 times liquid of ABA.