caa a22 4500 467943788 CHVBK 20180405193735.0 cr unu---uuuuu 170328e20041201xx s 000 0 eng 10.1007/BF02637250 doi (NATIONALLICENCE)springer-10.1007/BF02637250 (NATIONALLICENCE)springer-10.1007/s00344-004-0019-1 A developmental pattern of flowering in colored Zantedeschia spp: Effects of bud position and gibberellin [Elektronische Daten] [Vered Naor, Jaime Kigel, Meira Ziv, Moshe Flaishman] The restricted flowering of colored cultivars ofZantedeschia is a consequence of developmental constraints imposed by apical dominance of the primary bud on secondary buds in the tuber, and by the sympodial growth of individual shoots. GA3 enhances flowering inZantedeschia by increasing the number of flowering shoots per tuber and inflorescences per shoot. The effects of gibberellin on the pattern of flowering and on the developmental fate of differentiated inflorescences along the tuber axis and individual shoot axes were studied in GA3 and Uniconazole-treated tubers. Inflorescence primordia and fully developed (emerged) floral stems produced during tuber storage and the plant growth period were recorded. Days to flowering, percent of flowering shoots and floral stem length decreased basipetally along the shoot and tuber axes. GA3 prolonged the flowering period and increased both the number of flowering shoots per tuber and the differentiated inflorescences per shoot. Activated buds were GA3 responsive regardless of meristem size or age. Uniconazole did not inhibit inflorescence differentiation but inhibited floral stem elongation. The results suggest that GA3 has a dual action in the flowering process: induction of inflorescence differentiation and promotion of floral stem elongation. The flowering pattern could be a result of a gradient in the distribution of endogenous factors involved in inflorescence differentialtion (possibly GAs) and in floral stem growth. This gradient along the tuber and shoot axes is probably controlled by apical dominance of the primary bud. Springer Science-Business Media, Inc, 2005 Bud position nationallicence Calla lily nationallicence Flowering nationallicence Gibberellin nationallicence tuber nationallicence Uniconazole nationallicence Zantedeschia nationallicence Naor Vered The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut Kigel Jaime The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut Ziv Meira The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut Flaishman Moshe Institute of Horticulture, Agricultural Research Organization, The Volcani Center, 50250, Bet Dagan, Israel aut Journal of Plant Growth Regulation Springer-Verlag 23/4(2004-12-01), 269-279 0721-7595 23:4<269 2004 23 344 https://doi.org/10.1007/BF02637250 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02637250 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Naor Vered The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut NATIONALLICENCE 700 1- Kigel Jaime The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut NATIONALLICENCE 700 1- Ziv Meira The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Science, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Israel aut NATIONALLICENCE 773 0- Journal of Plant Growth Regulation Springer-Verlag 23/4(2004-12-01), 269-279 0721-7595 23:4<269 2004 23 344 NATIONALLICENCE 700 1- Flaishman Moshe Institute of Horticulture, Agricultural Research Organization, The Volcani Center, 50250, Bet Dagan, Israel aut NATIONALLICENCE 700 1- Naor Vered The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Rehovot, Israel aut NATIONALLICENCE 700 1- Kigel Jaime The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Rehovot, Israel aut NATIONALLICENCE 700 1- Ziv Meira The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Rehovot, Israel aut NATIONALLICENCE 856 40 https://doi.org/10.1007/s00344-004-0019-1 text/html Onlinezugriff via DOI NATIONALLICENCE 773 0- Journal of Plant Growth Regulation Springer-Verlag; www.springer-ny.com 23/4(2004-12-01), 269-279 0721-7595 23:4<269 2004 23 344 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer