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- [5] DISCRIMINATION BETWEEN CALCIUM AND STRONTIUM IN OAT PLANTS .I. INFLUENCE OF GROWTH STAGE OF PLANTS AND OF OSMOTIC POTENTIAL OF ROOT MEDIUM ZEITSCHRIFT FUR PFLANZENPHYSIOLOGIE, 1968, 59 (03): : 238 - &
- [9] STUDIES ON PRODUCTIVITY OF COFFEE .I. EFFECT OF LIGHT TEMPERATURE AND CO2 CONCENTRATION ON PHOTOSYNTHESIS OF COFFEA ARABICA ACTA BOTANICA NEERLANDICA, 1968, 17 (02): : 93 - +