A COMPARATIVE STUDY OF GEUM RIVALE L. AND G. URBANUM L. TO DETERMINE THOSE FACTORS CONTROLLING THEIR ALTITUDINAL DISTRIBUTION : I. GROWTH IN CONTROLLED AND NATURAL ENVIRONMENTS
The comparative growth of Geum rivale L. and Geum urbanum L. was determined, both over a range of temperatures under controlled conditions and throughout the year in field plots at three altitudes in the northern Pennines. Although under controlled conditions, the total dry matter accumulated was si...
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