Physiological-biochemical aspects of polyanthous plant formation in tulips under cultivation
2007
Kondratieva, V.V. | Shelepova, O.V. | Voronkova, T.A. | Danilina N.N., Russian Academy of Sciences, Moscow (Russian Federation). The N.V. Tsitsin Central Botanical Garden
Dynamics of macro- and microelements, hydrocarbon pool composition and hormonal status of apical bud tissues were studied on bulbs of polyanthous wild species Tulipa bifloriformis, polyanthous cultivar Bel Air and unifllowered cultivars Jan van Nes during the period of cool storage. The prolonged period of cool and wet storage of Bel Airs bulbs resulted in exhaustion of nutrients and plastic substances, in weakening of protective reactions, and ultimately in degradation of flowers and plants, but it did not negatively effect on Jan van Neses bulbs. This fact proves the higher adaptive potential of Jan van Nes plants. The adaptive potential of Tulipa bifloriformis is high as well, because this species has constantly ratio of abscisic acid and cytokinins optimal for forcing flowering of high quality.
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