Effect of Chemical Substances on Physiology Antifreeze of Red Pitaya(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Chemical Substances on Physiology Antifreeze of Red Pitaya

Author(s):: CHEN Xiu-hu1; YANG Min1; ZHENG Hui-long2 ; PI Xiao-juan1; CHEN Xin-miao1; (1.Qingyuan Polytechnic,Qingyuan，Guangdong 511500;2.Qingyuan City Bureau of Agriculture，Qingyuan，Guangdong 511500)

Keywords:: red pitaya(Hylocereus undulatus Britt); chemicals; antifreeze physiology; antifreeze

Abstract:: With 3-year-old red pitaya (Hylocereus undulatus Britt)as the test material,the control experiment was carried out to study the tree body spraying chemical antifreeze and root applying of chemicals on the frost resistance and antifreeze physiology of red pitaya，to discussed a good effect，low cost，stable stabilizing effect antifreeze technology.The results showed that，spraying antifreeze and tree root application of potassium dihydrogen phosphate,glutamic acid and paclobutrazol,could significantly improve proline and soluble sugar of pitaya in stem(P<0.05),and significantly improve the ability of antifreeze of pitaya,the best antifreezing effect was the methylcellulose sodium 0.5% suspension+root application 1% potassium dihydrogen phosphate，0.2% glutamic acid and 4 mg/L paclobutrazol did not appear the phenomenon of freezing.The anti freezing technology could solve the problem of pitaya planting in North area of Qingyuan in Guangdong.

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Last Update: 2015-06-25