Document Detail

Light Penetration and Light-induced Seed Germination in Soil.
MedLine Citation:
PMID:  16660344     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Light penetration through a Drummer silty clay loam and a Broomfield sand was measured spectrophotometrically and biologically. The spectrophotometric measurements showed that less than 1% of the incident light penetrated 2.2 millimeters at any wavelength between 350 and 780 nanometers for ped sizes up to 1 millimeter. Biological measurements with light-sensitive lettuce (Lactuca sativa) seeds in soil showed that an exposure to light equivalent to about 1 sunny day induced some germination of seeds which were 2 millimeters below the surface, but did not affect seeds 6 millimeters below the surface.
J T Woolley; E W Stoller
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant physiology     Volume:  61     ISSN:  0032-0889     ISO Abbreviation:  Plant Physiol.     Publication Date:  1978 Apr 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-06-29     Revised Date:  2010-09-15    
Medline Journal Info:
Nlm Unique ID:  0401224     Medline TA:  Plant Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  597-600     Citation Subset:  -    
United States Department of Agriculture, Agricultural Research Service, Agronomy Department, University of Illinois, Urbana-Champaign, Illinois 61801.
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