Regulation of stem elongation of lilies by temperature and the effect of gibberellin

• Published in: Scientia horticulturae Vol. 37; no. 1; pp. 165 - 169
• Main Authors: Zieslin, N., Tsujita, M.J.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 1988; Elsevier
• Subjects: acido giberelico; Agronomy. Soil science and plant productions; alargamiento del tallo; allongement de la tige; Biological and medical sciences; Economic plant physiology; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; gibberellin; gibberelline; Growth and development; Growth regulators; lilies; lilium; Protected cultivation; Soilless cultures. Protected cultivation; stem elongation; temperatura; temperature; temperature; gibberellin; lilies; stem elongation; Temperature; Growth; Glass house crop; Ornamental crop; Environmental factor; Plant growth substance; Cultivar
• ISSN: 0304-4238; 1879-1018
• DOI: 10.1016/0304-4238(88)90159-8

The stem length of Easter lilies ‘Nellie White’ and Mid-Century Hybrid lilies ‘Enchantment’ was significantly reduced when plants were grown at a night temperature higher than the day temperature. Application of GA 3 did not affect the stem length of either cultivar grown with a normal temperature regime. The stem length of ‘Nellie White’ lilies exposed to the reversed temperature increased by 15% when soaked in a GA 3 solution. A more pronounced effect was obtained when ‘Enchantment’ lilies, grown at the reversed temperature, were treated with GA 4+7. GA 4+7 also affected the stem length of ‘Enchantment’ lilies grown with the “normal” temperature regime.