Differences in stomatal number per unit area within the same species under different micro-environmental conditions: A working hypothesis
Abstract A summary of Salisbury's (1927) work on stomata is presented here. He found, basically, that the number of stomata per unit area increased under more xerophytic conditions. This is contrary to prevalent opinion, that postulates that under more humid conditions, the number of stomata ca...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Nacional de Pesquisas da Amazônia
1977-12-01
|
| Series: | Acta Amazonica |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671977000400473&tlng=en |
| Summary: | Abstract A summary of Salisbury's (1927) work on stomata is presented here. He found, basically, that the number of stomata per unit area increased under more xerophytic conditions. This is contrary to prevalent opinion, that postulates that under more humid conditions, the number of stomata can be greater, as there is less danger of dehydration. A hypothesis is presented here that can explain this: The more xerophytic the conditions, the higher the number of stomata per unit area to permit more efficient gas interchange at those times when relative humidity is high, and danger of excessive dehydration is lowest. |
|---|---|
| ISSN: | 0044-5967 |