Abstract:
:Plants of a single genotype of wild strawberry, Fragaria virginiana Duchesne, were grown with or without fertilizer in high (406 microeinsteins per square meter per second) and low (80 microeinsteins per square meter per second) light. High-light leaves were thicker than low-light leaves and had greater development of the mesophyll. Within a light level, high-nutrient leaves were thicker, but the proportions of leaf tissues did not change with nutrient level. Maximum net CO(2) exchange rate and leaf size were greatest in high-light, high-nutrient leaves and lowest in high-light, low-nutrient leaves. Changes in mesophyll cell volume largely accounted for differences in CO(2) exchange rate in low-light leaves, but not in high-light leaves.Leaf size in these experiments was apparently determined by nutrient and carbon supply. This may explain the observation that the largest leaves produced by wild strawberries in the field occur in high-light, mesic habitats, rather than in shady habitats.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Jurik TW,Chabot JF,Chabot BFdoi
10.1104/pp.70.4.1044subject
Has Abstractpub_date
1982-10-01 00:00:00pages
1044-8issue
4eissn
0032-0889issn
1532-2548journal_volume
70pub_type
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