Co-Authors:
Zieslin, N., The Hebrew University of Jerusalem, Faculty of Agriculture, P.O. Box 12, Rehovot, Israel
Mor, Y., Ministry of Agriculture, Department of Floriculture, Tel-Aviv, Israel
Abstract:
Light intensity is the most important factor affecting rose plant growth and flowering. Decrease in light intensity and the duration of the light period owing to seasonal changes or shading reduce the yield of roses. Different components of productivity and quality, such as bud breaking, rate of flower abortion, formation of renewal shoots, time period between harvests, length, weight and diameter of stem and flower buds, leaf area and pigmentation of petals are affected by light. Supplementary lighting of relatively high levels of irradiance, especially during periods of low solar radiation, results in increasing numbers of flowers. A survey of reports on the influence of light, either natural or artificially supplied, on the various aspects of rose growth, productivity and flower quality is the purpose of the present review. © 1990.
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מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
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