Effect of Different Drying Method and Storage Temperature on the Pollen Germination of Yulania denudata(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Different Drying Method and Storage Temperature on the Pollen Germination of Yulania denudata

Author(s):: WU Zi-long; ZHAO Xin; NIU Hong-lei; REN Xing-xing; WANG Hao; Handan Key Laboratory of Resource Plant，Department of Biological Sciences,College of Handan，Handan,Hebei 056005

Keywords:: Yulania denudata; pollen germination; drying method; storage temperature

Abstract:: Taking 5~7 years old Yulania denudata as test materials,the effects of shade drying，sun drying，light drying and constant temperature drying of four different drying methods and room temperature，4，0，-20，-40，-80℃ six storage temperature on the pollen germination of Yulania denudata were studied.The results showed that the shade drying method was superior to the sun drying，light drying and constant temperature drying.All the pollen germination rates of Y.denudata in vitro decreased，which were respectively treated at room temperature，4，0，-20，-40，-80℃ for 10，20，30，40 d after shade drying.The decreasing pollen germination rate of Y.denudata was the most rapid，that was generally followed by increasing of storage time at room temperature.The pollen germination rate was 73.3% before storage (0 d) and reduced to 0% after keeping on 40 days.A speed of reduction of the pollen germination rate was similar at 4 and 0℃.The pollen which stored at -40 and -80℃ achieved good results with a higher pollen germination rate.The pollen germination rate could exceed 50% within 40 days.

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Last Update: 2014-08-22