NDLI: Effect of lateral far-red light supplementation on the growth and morphology of birch seedlings and its interaction with mineral nutrition

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Effect of lateral far-red light supplementation on the growth and morphology of birch seedlings and its interaction with mineral nutrition

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Trees : Volume 15, Issue 4, May 2001

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Trees : Volume 15, Issue 2, January 2001

Trees : Volume 15, Issue 1, October 2000

Effect of lateral far-red light supplementation on the growth and morphology of birch seedlings and its interaction with mineral nutrition

Content Provider	Springer Nature Link
Author	Aphalo, Pedro J. Lehto, Tarja
Copyright Year	2001
Abstract	The effects of lateral far-red light (FR) and nutrient supply on the growth and nitrogen accumulation of silver birch (Betula pendula) seedlings were studied with the objective of testing the following hypotheses: (1) silver birch seedlings grow taller in response to increased FR irradiance received from the side; (2) this response is modulated by the nutritional status of the seedlings; and (3) an increase in lateral FR irradiance, and concomitant decrease in red to far-red photon ratio, affects the carbon and nitrogen economies of the seedlings. Two factorial experiments, each with two levels of mineral nutrient availability and two light treatments (background 'white' light with and without additional lateral FR simulating light reflected by neighbours in a sparse canopy) were done with small seedlings. The two experiments differed in PAR irradiance. The results of these experiments were that (1) stem elongation rate was increased by lateral FR addition, (2) there was no interaction between this effect and the nutritional status of the seedlings, and (3) neither whole plant accumulation of nitrogen nor dry weight increment was affected by lateral FR under either mineral nutrient supply regime.
Starting Page	297
Ending Page	303
Page Count	7
File Format	PDF
ISSN	09311890
Journal	Trees
Volume Number	15
Issue Number	5
e-ISSN	14322285
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-05-03
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Ecology Physiology Plant Science Forestry

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