Relation between air water potential and cambial electrical resistance of balsam fir and white spruce after budbreak
Cambial electrical resistance in 10 balsam fir (Abiesbalsamea (L.) Mill.) and 10 white spruce (Piceaglauca (Moench) Voss) trees in Québec was measured 42 times during July and August 1985. Simultaneous measurements of relative humidity and temperature were also taken so that water potential in air (...
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| Veröffentlicht in: | Canadian journal of forest research 1987-02, Vol.17 (2), p.105-108 |
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| container_title | Canadian journal of forest research |
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| creator | Gagnon, Robert R Bauce, Eric Pineau, Marius |
| description | Cambial electrical resistance in 10 balsam fir (Abiesbalsamea (L.) Mill.) and 10 white spruce (Piceaglauca (Moench) Voss) trees in Québec was measured 42 times during July and August 1985. Simultaneous measurements of relative humidity and temperature were also taken so that water potential in air (ψ
a
) could be determined. In both species, cambial electrical resistance, corrected to a constant temperature of 15 °C (
CERCOR
), was negatively correlated with ψ
a
. On the other hand, 10 measurements on 14 balsam fir trees that had been severely defoliated by the spruce budworm (Choristoneurafumiferana (Clem.)) in 1983 and 1984, and 12 measurements on 14 protected trees showed that the correlation was stronger for sprayed trees than for those that had been defoliated. We propose that the correlation coefficient between cercor and ψ
a
may be a useful index of tree vigor. However, in situations where plots can be visited only once during the season, cambial electrical resistance measurements should be made in the morning when the relative humidity is high. |
| doi_str_mv | 10.1139/x87-020 |
| format | Article |
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a
) could be determined. In both species, cambial electrical resistance, corrected to a constant temperature of 15 °C (
CERCOR
), was negatively correlated with ψ
a
. On the other hand, 10 measurements on 14 balsam fir trees that had been severely defoliated by the spruce budworm (Choristoneurafumiferana (Clem.)) in 1983 and 1984, and 12 measurements on 14 protected trees showed that the correlation was stronger for sprayed trees than for those that had been defoliated. We propose that the correlation coefficient between cercor and ψ
a
may be a useful index of tree vigor. However, in situations where plots can be visited only once during the season, cambial electrical resistance measurements should be made in the morning when the relative humidity is high.</description><identifier>ISSN: 0045-5067</identifier><identifier>EISSN: 1208-6037</identifier><identifier>DOI: 10.1139/x87-020</identifier><identifier>CODEN: CJFRAR</identifier><language>eng</language><publisher>Ottawa, Canada: NRC Research Press</publisher><subject>Absorption. Translocation of ions and substances. Permeability ; Agronomy. Soil science and plant productions ; Biological and medical sciences ; Economic plant physiology ; Fundamental and applied biological sciences. Psychology ; Nutrition. Photosynthesis. Respiration. Metabolism ; Plant physiology and development ; Water and solutes. Absorption, translocation and permeability</subject><ispartof>Canadian journal of forest research, 1987-02, Vol.17 (2), p.105-108</ispartof><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c219t-213d5cb72e05034ff67386e8241df2a1bc7987f4767731937a6def221760a2173</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8158476$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gagnon, Robert R</creatorcontrib><creatorcontrib>Bauce, Eric</creatorcontrib><creatorcontrib>Pineau, Marius</creatorcontrib><title>Relation between air water potential and cambial electrical resistance of balsam fir and white spruce after budbreak</title><title>Canadian journal of forest research</title><addtitle>Revue canadienne de recherche forestière</addtitle><description>Cambial electrical resistance in 10 balsam fir (Abiesbalsamea (L.) Mill.) and 10 white spruce (Piceaglauca (Moench) Voss) trees in Québec was measured 42 times during July and August 1985. Simultaneous measurements of relative humidity and temperature were also taken so that water potential in air (ψ
a
) could be determined. In both species, cambial electrical resistance, corrected to a constant temperature of 15 °C (
CERCOR
), was negatively correlated with ψ
a
. On the other hand, 10 measurements on 14 balsam fir trees that had been severely defoliated by the spruce budworm (Choristoneurafumiferana (Clem.)) in 1983 and 1984, and 12 measurements on 14 protected trees showed that the correlation was stronger for sprayed trees than for those that had been defoliated. We propose that the correlation coefficient between cercor and ψ
a
may be a useful index of tree vigor. However, in situations where plots can be visited only once during the season, cambial electrical resistance measurements should be made in the morning when the relative humidity is high.</description><subject>Absorption. Translocation of ions and substances. Permeability</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Economic plant physiology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Nutrition. Photosynthesis. Respiration. Metabolism</subject><subject>Plant physiology and development</subject><subject>Water and solutes. Absorption, translocation and permeability</subject><issn>0045-5067</issn><issn>1208-6037</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNp1kFtLxDAQhYMouF7wL-RBEITqJGmb9lEWb7AgiD6XaTpho922JFlW_70pK775MjMw35zhHMYuBNwIoerbr0pnIOGALYSEKitB6UO2AMiLrIBSH7OTED4AQJUKFiy-Uo_RjQNvKe6IBo7O8x1G8nwaIw3RYc9x6LjBTTvP1JOJ3pk0egouRBwM8dHyFvuAG27T_czv1i4SD5PfpjXaWbDddq0n_DxjRzbBdP7bT9n7w_3b8ilbvTw-L-9WmZGijpkUqitMqyVBASq3ttSqKqmSueisRNEaXVfa5rrUWolaaSw7slIKXQKmqk7Z1V7X-DEET7aZvNug_24ENHNYTQqrSWEl8nJPThiSM-uTKRf-8EoUVXqTsOs9NniTzBN6s_5X8wcHmHej</recordid><startdate>19870201</startdate><enddate>19870201</enddate><creator>Gagnon, Robert R</creator><creator>Bauce, Eric</creator><creator>Pineau, Marius</creator><general>NRC Research Press</general><general>National Research Council of Canada</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19870201</creationdate><title>Relation between air water potential and cambial electrical resistance of balsam fir and white spruce after budbreak</title><author>Gagnon, Robert R ; Bauce, Eric ; Pineau, Marius</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c219t-213d5cb72e05034ff67386e8241df2a1bc7987f4767731937a6def221760a2173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>Absorption. Translocation of ions and substances. Permeability</topic><topic>Agronomy. Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Economic plant physiology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Nutrition. Photosynthesis. Respiration. Metabolism</topic><topic>Plant physiology and development</topic><topic>Water and solutes. Absorption, translocation and permeability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gagnon, Robert R</creatorcontrib><creatorcontrib>Bauce, Eric</creatorcontrib><creatorcontrib>Pineau, Marius</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Canadian journal of forest research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gagnon, Robert R</au><au>Bauce, Eric</au><au>Pineau, Marius</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relation between air water potential and cambial electrical resistance of balsam fir and white spruce after budbreak</atitle><jtitle>Canadian journal of forest research</jtitle><addtitle>Revue canadienne de recherche forestière</addtitle><date>1987-02-01</date><risdate>1987</risdate><volume>17</volume><issue>2</issue><spage>105</spage><epage>108</epage><pages>105-108</pages><issn>0045-5067</issn><eissn>1208-6037</eissn><coden>CJFRAR</coden><abstract>Cambial electrical resistance in 10 balsam fir (Abiesbalsamea (L.) Mill.) and 10 white spruce (Piceaglauca (Moench) Voss) trees in Québec was measured 42 times during July and August 1985. Simultaneous measurements of relative humidity and temperature were also taken so that water potential in air (ψ
a
) could be determined. In both species, cambial electrical resistance, corrected to a constant temperature of 15 °C (
CERCOR
), was negatively correlated with ψ
a
. On the other hand, 10 measurements on 14 balsam fir trees that had been severely defoliated by the spruce budworm (Choristoneurafumiferana (Clem.)) in 1983 and 1984, and 12 measurements on 14 protected trees showed that the correlation was stronger for sprayed trees than for those that had been defoliated. We propose that the correlation coefficient between cercor and ψ
a
may be a useful index of tree vigor. However, in situations where plots can be visited only once during the season, cambial electrical resistance measurements should be made in the morning when the relative humidity is high.</abstract><cop>Ottawa, Canada</cop><pub>NRC Research Press</pub><doi>10.1139/x87-020</doi><tpages>4</tpages></addata></record> |
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| identifier | ISSN: 0045-5067 |
| ispartof | Canadian journal of forest research, 1987-02, Vol.17 (2), p.105-108 |
| issn | 0045-5067 1208-6037 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_8158476 |
| source | Alma/SFX Local Collection |
| subjects | Absorption. Translocation of ions and substances. Permeability Agronomy. Soil science and plant productions Biological and medical sciences Economic plant physiology Fundamental and applied biological sciences. Psychology Nutrition. Photosynthesis. Respiration. Metabolism Plant physiology and development Water and solutes. Absorption, translocation and permeability |
| title | Relation between air water potential and cambial electrical resistance of balsam fir and white spruce after budbreak |
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