Effects of different overwinter storage regimes on shoot growth and net photosynthetic capacity inPinus SylvestrisSeedlings
作者:
Anders Mattsson,
Erik Troeng,
期刊:
Scandinavian Journal of Forest Research
(Taylor Available online 1986)
卷期:
Volume 1,
issue 1-4
页码: 75-84
ISSN:0282-7581
年代: 1986
DOI:10.1080/02827588609382402
出版商: Taylor & Francis Group
关键词: Pinus sylvestris;seedlings;cold storage;outdoor storage;biomass development;net photosynthesis
数据来源: Taylor
摘要:
Seedlings ofPinus sylvestriswere cold‐stored for three or six months at ‐4°C or 2°C or overwintered outdoors. Dry weight development and net photosynthetic capacity were then measured during a 60‐day cultivation period in a controlled environment. In all storage regimes the longer storage period gave a faster growth initiation. Photosynthetic recovery was faster for seedlings stored at 2°C than at ‐4°C, due to better recovery of stomatal conductance. The results suggest that there is little difference in seedling development between storage temperatures of ‐4°C and 2°C whereas outdoor storage might cause certain negative effects on subsequent growth of seedlings. This result is discussed with regard to the present winter climate.
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