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Effects of Drought Stress on Chlorophyll Fluorescence Characteristics of Five Species of Ornamental Ferns(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年15期
Page:
66-69
Research Field:
Publishing date:

Info

Title:
Effects of Drought Stress on Chlorophyll Fluorescence Characteristics of Five Species of Ornamental Ferns
Author(s):
DONG Yan-long1; 2; CHANG Ying1
1.College of Life Science,Northeast Agricultural University,Harbin,Heilongjiang 150030;
2.Branch of Horticulture,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150069
Keywords:
ferns; drought stress; chlorophyll fluorescence
PACS:
S 682.35
DOI:
-
Abstract:
The chlorophyll fluorescence parameters of 5 species of ornamental ferns under drought stress were determined and analyzed in order to understand the mechanism of drought resistance,including Nephralepis exaltata cv.Bastaniensis,Microlepia strigosa (Thunb.) Presl,Davallia bullata,Nephrolepiscordifolia(L.)Presl and Adiantum capillus veneris  Linn.The results showed that the Fm value of 5 species increased firstly and then decreased,and the Fmvalue of  Microlepia strigosa (Thunb.) Presl at 12 days after treatment was significantly higher than that of other 4；and the value of F0showed the first decline after rising trend；the Fv/Fm of Microlepia strigosa (Thunb.) Presl was floating within 0.03,the effects of drought stress was relatively small；the qP of  Microlepia strigosa(Thunb.) Presl amplitude decreased；and the qP value of wolf tail fern was significantly higher than that in the other species in the late；the qN value of Nephralepis exaltata cv.Bastaniensis and Microlepia strigosa(Thunb.) Presl fluctuated between 0.42~0.52 and 0.41~0.55,and the qN values showed increased in the later of  Davallia bullata,Nephrole piscordifolia (L.)Presl and  Adiantum capillusveneris Linn,and it showed that the leaves of self protection mechanism were strong.Synthesis of chlorophyll fluorescence parameters of the changes mentioned above could be seen that the drought resistance ability of Davallia bullata and Microlepia strigosa (Thunb.) Presl stronger relative to others.

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Last Update: 2014-08-12