OPENING OF STOMATA IN DIFFERENT RANGES OF WAVE LENGTHS OF LIGHT

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Abstract
Rumex patientia plants grown out-of-doors were covered with ventilated, light-tight tin boxes fitted with glass ray filters, and % transmissions of daylight by these filters was calculated by comparing their light transmission values with the intensity of daylight. No stomatal opening was observed in wave lengths longer than 690 m[mu]. All other regions of the visible spectrum (except the violet) seem to be equally effective.

This publication has 1 reference indexed in Scilit:

  • IX. Observations on stomata
    Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1898