苹果树根茎鼠害的物理挽救措施

日常果园管理中,因管理粗放,果园杂草丛生,造成果树根茎受鼠害而使树势衰弱,甚至死亡,造成巨大的经济损失。通过试验,找到了在生产实践中廉价、便于操作的2种有效挽救措施：①受害的根茎用塑料包严后培土严实,于当年8月上旬解开膜,这种方法使得受害面愈合效果好,受害树能正常挂果;②受害的根茎用报纸包扎4～5层后,再用湿土培严即可,这种方法也可使受害部位愈合良好,受害树能正常生长、挂果,而且取材廉价、方便。另外,温度、湿度、空气是形成层愈伤组织细胞生长的必需外界环境因子,其中任何1个因子达不到要求,都会影响挽救效果。

The Salvage Physical Technical Measures of Apple Tree Rhizome Harmed by Rodents

In the ＂daily orchard management, due to the extensive management and invasion of weeds, the roots of fruit trees are damaged and growth potential of trees become weaker and death caused by rodents damage, which bring a huge economic losses to orchard. Therefore, two effectively salvage .measures, which is cheap and easy to operate in the production, were found by the experiment. The first measure is that the harmed rhizome were packed with plastic bag and then hilling tightly, the plastic film were removed on early August in same year, which can make harmed surface heal better and can make harmed tree bear fruit. The second measure is that the harmed rhizome were packed 4-5 layers with newspaper and then hilling with wet soil, which can make harmed part heal better and make harmed tree normal growth and bear fruit. This measure above mentioned has advantage of cheap and convenient drawing materials. In addition, it Was concluded from the experiment that temperature, humidity and air are the external environmental factors to promote the growth of callus cells, whichever factor can affect salvage effect if not meeting demand.