Adaptability of the Photosynthetic Apparatus to Light Intensity in Ecotypes from Exposed and Shaded Habitats

Adaptability of the Photosynthetic Apparatus to Light Intensity in Ecotypes from Exposed and... O L L E BJ5I{KMAN and PAUL HOLMGHEN Department of Genetics, University of Uppsala, UppsaUi 7, Sweden [Received August 6th. 1963) I. Introductiou In any environment the successful plant popuhition.s are Ihose whieh have evolved the nio.st appi'opriate physio!of,'ical mcchani.sms. 't'lierefore species occupyitif4 diverse hahitats are (jlten genetically difit'renHaled iit ecologically adapted races (ecotypes). Local climate is of primary importance as a selective factor: iiglit. temperatttre and humidify showing the mosi remarkahle variation from one habitat to another. Photosynlhesis. Ihe process providing Ihe sources of chemical energy and the substrates for all subsequent hiosynthesis in Ihe plant, is a physiolf>gical process most sensitive lo variation in these extertial tactors. The pholosynthetic apjiafaltts lends to adjust lo the s[)ecific t'iivin)ninciil so Ihat the a\ailahk' light energy is tililizcd most efficieiiUy. .Vii Imporlanl problem is whelher the poteiilial range for adjusliiu'tit dil'f'ers within species among populations from cotitrasting habitats as a result of genetic adaptatioti; direct experimental studies are. however, surprisingly scarce. It) recent years tbis problem ba.s been laken up for investigation by Milner and coworkers |I958^HM)2). by Mooney and Billings 11960) and in this laboratory ilijcirktnan et al. 19(iO, 19()2). The present investigation is focused on the role http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physiologia Plantarum Wiley

Adaptability of the Photosynthetic Apparatus to Light Intensity in Ecotypes from Exposed and Shaded Habitats

Physiologia Plantarum, Volume 16 (4) – Oct 1, 1963

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Publisher
Wiley
Copyright
Copyright © 1963 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0031-9317
eISSN
1399-3054
D.O.I.
10.1111/j.1399-3054.1963.tb08366.x
Publisher site
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Abstract

O L L E BJ5I{KMAN and PAUL HOLMGHEN Department of Genetics, University of Uppsala, UppsaUi 7, Sweden [Received August 6th. 1963) I. Introductiou In any environment the successful plant popuhition.s are Ihose whieh have evolved the nio.st appi'opriate physio!of,'ical mcchani.sms. 't'lierefore species occupyitif4 diverse hahitats are (jlten genetically difit'renHaled iit ecologically adapted races (ecotypes). Local climate is of primary importance as a selective factor: iiglit. temperatttre and humidify showing the mosi remarkahle variation from one habitat to another. Photosynlhesis. Ihe process providing Ihe sources of chemical energy and the substrates for all subsequent hiosynthesis in Ihe plant, is a physiolf>gical process most sensitive lo variation in these extertial tactors. The pholosynthetic apjiafaltts lends to adjust lo the s[)ecific t'iivin)ninciil so Ihat the a\ailahk' light energy is tililizcd most efficieiiUy. .Vii Imporlanl problem is whelher the poteiilial range for adjusliiu'tit dil'f'ers within species among populations from cotitrasting habitats as a result of genetic adaptatioti; direct experimental studies are. however, surprisingly scarce. It) recent years tbis problem ba.s been laken up for investigation by Milner and coworkers |I958^HM)2). by Mooney and Billings 11960) and in this laboratory ilijcirktnan et al. 19(iO, 19()2). The present investigation is focused on the role

Journal

Physiologia PlantarumWiley

Published: Oct 1, 1963

References

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