Absorção e distribuição de 45Ca em cultivares de tomateiro cultivados em soluções nutritivas com diferentes relações Nh4+ / O3 e diferentes períodos de absorção
Palavras-chave:
pressão radicular, solução nutritiva, podridão apicalResumo
A greenhouse experiment in nutrient solution with two N'H;qu; ratios was undertaken to evaluate Ca absorption and distribution in five tomato cultivars (Kada', ‘Miguel Pereira’, ‘Principe Gigante’, “São Pedro' and ‘Yokota)). Ca absorption was measured from 6 am. to 6 p.m. and from 6 p.m. to 6 am., using 45Ca as tracer.
Referências
ARMSTRONG, M.J. & KIRKBY, E.A. The influence of humidity on the mineral composition of tomato plants with special reference to calcium distribution. Plant Soil, 52:427-435. 1979.
BANGERTH, F. Calcium-related physiological disorders of plants. Annu. Rev. Phytopath., 17:97-122. 1979.
BIDDULPH, O.; CORY, R. & BIDDULPH, S. Translocation of calcium in the bean plant. Plant Physiol., 34:512-519. 1959,
BIDDULPH, O.; BIDDULPH, S.; CORY, R. & KOONTZ, H. Circulation patterns for phosphorus, sulfur and calcium in the bean plant. Plant Physiol., 33:293-300. 1958. ”
BRADFIELD, E.G. & GUTTRIDGE, C.G. The dependence of calcium transport and leaf tipburn in strawberry on relative humidity and nutrient solution concentration. Ann. Bot., 43:363-372. 1979.
BRADFIELD, E.G. & GUTTRIDGE, C.G. Effects of night-time humidity and nutrient solution concentration on the calcium content of tomato fruit. Sci. Hortc. 22:207-217. 1984.
BUKOVAC, M.J. & WITTWER, S.H. Absorption and mobility of foliar applied nutrients. Plant Physiol., 32:428-435. 1957.
CASTELLANE, P.D. Constatagdo e interpretagao fisiologica de diferencas de suscetibilidade de cultivares de tomateiro (Lycopersicum esculentum, Mill) à podridão apical. Viçosa, UFV, Imprensa Universitária, 1985, 183 p. (Tese DS).
EPSTEIN, E. Nutrição Mineral de Plantas — Princípios e Perspectivas. Trad. E. Malavolta. Ed. da Universidade de São Paulo, 1975. 451 P
GUTTRIDGE, C.C. & BRADFIELD, E.G. Root pressure stops blossom-end rot. Grower, 100(1):25-26. 1983.
MENGEL, K. & KIRKBY, E. A. Principles of Plant Nutrition. 2nd ed. Worblan- fen-Bern, International Potash Institute, 1979. 593 Pp.
MONNERAT, P.H.; CASTELLANE, P.D.; ZAMBON, JL.C.; PÁDUA, J.G. &
MULLER, J.J.V. Efeitos de relações amônio/nitrato sobre o desenvolvimento inicial e composição mineral do tomateiro, Lycopersicum esculentum. Amer. Soc. Hort. Sci., 25:451-455. 1982.
PALZKILL, D.A.; TIBBITTS, T.W. & WILLIAMS, PH. Enhancement of calcium transport to inner leaves of cabbage for prevention of tipburn. J. Amer. Soc. Hort. Sci., 101:645-648. 1976.
QUEBEDEAUX, B. Jr. & OZBUN, J.L. Effects of ammonium nutrition on water stress, water uptake, and root pressure in Lycopersicon esculentum, Mill. Plant Physiol., 52:677-679. 1973.
SHEAT, C.B. Calcium-related disorders of fruits and vegetables. HorScience, 10:361-365. 1975.
Van de GELIN, S.C. & SMEULDERS, F. Diurnal changes in the flux of calcium toward meristems and transpiring leaves in tomato and maize plants. Planta, 151:265-271. 1981.
WIEBE, H.J.; SCHATZIER, H.P. & KUHN, W. On the movement and distribution of calcium in white cabbage in dependence of water status. Plant Soil, 48: 409-416. 1977.
WIERSUM, LK. Calcium content of fruits and storage tissues in relation to the mode of water supply. Acta Bot. Neerl., 15:406-418. 1965.
WIERSUM, LK. Ca content of the phloem sap in relation to Ca-status of the plant. Acta Bot. Neerl., 28:221-224. 1979.
WIERSUM, L.K. Effects of environment and cultural practices on calcium nutrition. Commun. Soil. Plant Anal., 10:259-276. 1979.
WILCOX, G.E.; MITCHELL, C.A. & HOFF, J.E. Influence of nitrogen form on exudation rate, and ammonium, amide and cation composition of xylem exudate in tomato. J. Amer. Soc. Hort. Sci., 102:192-196. 1977.
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
