 ... dark. Occasionally there is apparent a rhythm corresponding to the daily periodicity, but on the other hand it not unfrequently happens that there may be an irregular decline from the start or the curve may be characterized by a rise or fall without...  The Physiology of Stomata - Pagina 65door Francis Ernest Lloyd - 1908 - 142 pagina’sVolledige weergave - Over dit boek
 | Torrey Botanical Club - 1902 - 850 pagina’s
...curve may be characterized by a rise or fall without reference to the period of the day. I have noticed on several occasions that pronounced maxima may be...early in the morning — between 5 and 9 o'clock. Manifestly little importance is to be attached to the results obtained under such conditions inasmuch... | |
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