THE EFFECT OF PHOTOPERIOD AND TEMPERATURE ON THE RELATIONSHIP BETWEEN THE ROOT AND SHOOT SYSTEMS OF LOLIUM PERENNE |
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| Authors: | Arthur Troughton |
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| Institution: | Welsh Plant Breeding Station, Aberystwyth |
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| Abstract: | In controlled environment cabinets, root growth relative to shoot growth varied directly with the temperature within the range 50·–80·F. Increasing the photoperiod from 6 to 12 hours increased the root growth relative to shoot growth; additional hours of light had no further influence on this ratio. These results are discussed in relation to the maintenance of a balance between photosynthesis and the absorption of water and minerals. |
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