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Plant regulators in agriculture
Harold Bradford Tukey · Wiley; Chapman & Hall
269 sayfa · 1954
Plant growth inhibiting substances / Plant growth promoting substances / Growth (Botany) / Agricultural chemicals
Plants for cities
Harold Bradford Tukey · U.S. Dept. of Agriculture, Agricultural Research Service
Sayfa sayısı yok · 1987
B.Y. Morrison memorial lecture
The pear and its culture
Harold Bradford Tukey · K. Paul Trench, Trübner & Co., ltd.
125 sayfa · 1928
Pear / Pears / Fruit-culture