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Tuatara: Volume 6, Issue 1, January 1956

Fig. 1a-s. Diagrams which illustrate experiments on the short-day species Xanthium (a-f, r, s) and Perilla (g-q) by which localised perception and translocation of the flowering hormone through the plant were demonstrated. Full descriptions of the experimental treatments are given in the text. Unshaded areas denote parts of the plants which were exposed to long days, hatched areas were exposed to short days, and black parts were maintained in continuous darkness. Plants in treatments b, d, e, h…

Fig. 1a-s. Diagrams which illustrate experiments on the short-day species Xanthium (a-f, r, s) and Perilla (g-q) by which localised perception and translocation of the flowering hormone through the plant were demonstrated. Full descriptions of the experimental treatments are given in the text. Unshaded areas denote parts of the plants which were exposed to long days, hatched areas were exposed to short days, and black parts were maintained in continuous darkness. Plants in treatments b, d, e, h, i, j, l, o, p, q, r, and s flowered, and flowers are shown at the apex of these plants. Plants in treatments, a, c, f, g, k, m, and n failed to flower.

Fig. 1a-s. Diagrams which illustrate experiments on the short-day species Xanthium (a-f, r, s) and Perilla (g-q) by which localised perception and translocation of the flowering hormone through the plant were demonstrated. Full descriptions of the experimental treatments are given in the text. Unshaded areas denote parts of the plants which were exposed to long days, hatched areas were exposed to short days, and black parts were maintained in continuous darkness. Plants in treatments b, d, e, h, i, j, l, o, p, q, r, and s flowered, and flowers are shown at the apex of these plants. Plants in treatments, a, c, f, g, k, m, and n failed to flower.