|Table of Contents|

Influence of GA3 and Temperature on Germination of Primula lithophila Seeds of Endemic Ornamental Plant of Guizhou(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年14
Page:
74-77
Research Field:
Publishing date:

Info

Title:
Influence of GA3 and Temperature on Germination of Primula lithophila Seeds of Endemic Ornamental Plant of Guizhou
Author(s):
QIAN Changjiang1; 2; DU Yong1; MU Jun3; LI Chongqing3; LIU Xin1; LI Congrui4 
(1.School of Chemistry and Life Sciences,Guizhou Education University,Guiyang,Guizhou 550018；2.Guizhou Bioresource Development and Utilization Key Laboratory,Guiyang,Guizhou 550018；3.Administration Bureau of Guizhou Xishui Nature Reserve，Xishui，Guizhou 564600；4.Guizhou Academy of Forestry,Guiyang,Guizhou 550001)
Keywords:
Primula lithophila; germination rate; germination potential; germination index; temperature; GA3 solution
PACS:
-
DOI:
10.11937/bfyy.201614019
Abstract:
The seeds of Primula lithophila were used as experimental material,with different temperature gradients and different concentrations of GA3 at 20 ℃ constant temperature to treat these seeds,and the influence of different treatments on germination rate，germination potential and germination index to find the optimal conditions for germination was studied.The results showed that the germination rate(44.45%) of 15 ℃ treatment was the highest;the germination potential(32.22%) and germination index(4.64) of 20 ℃ treatment was the highest.The every index of 25 ℃ treatment was the lowest，the germination rate(1.11%) of 25 ℃ treatment comparing with 10 ℃，15 ℃ and 20 ℃ treatment was significant difference(P<0.05).The germination potential(1.11%) of 25 ℃ treatment comparing with 20 ℃ treatment was significant difference(P<0.05)，and the germination index(0.27) of 25 ℃ treatment comparing with 20 ℃ treatment was significant difference(P<0.05).So the optimum germination temperature for these seeds was 15-20 ℃.At 20 ℃ constant temperature,the germination rate(41.11%) of 200 mg?L-1 GA3 solution treatment was the highest，and the germination potential(34.44%) of 100 mg?L-1 and 200 mg?L-1 GA3 solution treatment was the highest，and the germination index(5.53) of 100 mg?L-1 GA3 solution treatment was the highest.The control group(CK) treatment comparing with 400 mg?L-1 and 500 mg?L-1 GA3 solution treatment，the germination rate and germination potential was significant difference(P<0.05)，but the control group(CK) treatment comparing with 200 mg?L-1，300 mg?L-1，400 mg?L-1 and 500 mg?L-1 GA3 solution treatment，the germination index was significant difference(P<0.05).The optimum germination concentration of GA3 solution for these seeds was 100-200 mg?L-1.

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Last Update: 2016-08-16