Fotossíntese, relações hídricas e crescimento de cafeeiros jovens em relação à disponibilidade de fósforo
作者： Leandro da Silva , Paulo Eduardo Ribeiro Marchiori , Cíntia Pinheiro Maciel , Eduardo Caruso Machado , Rafael Vasconcelos Ribeiro
DOI: 10.1590/S0100-204X2010000900005
关键词: Chlorophyll 、 Horticulture 、 Photosynthesis 、 Photosystem II 、 Carbon dioxide 、 Dry matter 、 Cultivar 、 Biological pigment 、 Agronomy 、 Coffea arabica 、 Chemistry
摘要: The objective of this work was to evaluate how high soil phosphorus (P) availability affects the photosynthesis and growth young coffee arabica plants (Coffea arabica). Four months old seedlings Ouro Verde cultivar, cultivated in good hydric conditions, were exposed three P treatments: dosage recommended literature (RP); two times (P+); without (P-). Seventy days after treatment application, evaluations leaf gas exchange, photochemical activity, water potential, plant hydraulic conductance (KL), dry matter partitioning, contents pigments carbohydrates, chemical composition done. caused reduction photosynthesis, leading lower growth. P+ showed highest concentrations (~1.9 g kg-1), with increasing CO2 assimilation instantaneous carboxylation efficiency, higher activity - effective quantum efficiency photosystem II apparent electron transport rate when compared RP treatment. Plants double exhibited KL, carbohydrate content chlorophyll content, resulting production as P-.
cabdirect.org
ufv.br
sci-hub.se 参考文章(26)
John S. Boyer, Paul Jackson Kramer, Water Relations of Plants and Soils ,(1995)
K. Rohacek, Chlorophyll Fluorescence Parameters: The Definitions, Photosynthetic Meaning, and Mutual Relationships Photosynthetica. ,vol. 40, pp. 13- 29 ,(2002) , 10.1023/A:1020125719386
Antônio Nazareno Guimarães Mendes, Rubens José Guimarães, Janice Guedes de Carvalho, Flávia Maria Vieira Teixeira Clemente, Critical ranges of macronutrient leaf levels in coffee (Coffea arabica L.) after planting - first year Coffee Science. ,vol. 3, pp. 47- 57 ,(2008) , 10.25186/CS.V3I1.72
HARTMUT K. LICHTENTHALER, ALAN R. WELLBURN, Determinations of total carotenoids and chlorophylls a and b of leaf extracts in different solvents Biochemical Society Transactions. ,vol. 11, pp. 591- 592 ,(1983) , 10.1042/BST0110591
Domingo J Iglesias, Ignacio Lliso, Francisco R Tadeo, Manuel Talon, None, Regulation of photosynthesis through source: sink imbalance in citrus is mediated by carbohydrate content in leaves Physiologia Plantarum. ,vol. 116, pp. 563- 572 ,(2002) , 10.1034/J.1399-3054.2002.1160416.X
Roberto dos Anjos Reis Jr., Hermínia E. P. Martinez, Adição de Zn e absorção, translocação e utilização de Zn e P por cultivares de cafeeiro Scientia Agricola. ,vol. 59, pp. 537- 542 ,(2002) , 10.1590/S0103-90162002000300019
Michel. DuBois, K. A. Gilles, J. K. Hamilton, P. A. Rebers, Fred. Smith, Colorimetric Method for Determination of Sugars and Related Substances Analytical Chemistry. ,vol. 28, pp. 350- 356 ,(1956) , 10.1021/AC60111A017
Hans Lambers, Thijs L. Pons, F. Stuart Chapin, Plant Physiological Ecology ,(2000)
R.V. Ribeiro, E.C. Machado, M.G. Santos, R.F. Oliveira, Photosynthesis and water relations of well-watered orange plants as affected by winter and summer conditions. Photosynthetica. ,vol. 47, pp. 215- 222 ,(2009) , 10.1007/S11099-009-0035-2
Shubhra Shubhra, J. Dayal, C.L. Goswami, R. Munjal, Influence of phosphorus application on water relations, biochemical parameters and gum content in cluster bean under water deficit Biologia Plantarum. ,vol. 48, pp. 445- 448 ,(2004) , 10.1023/B:BIOP.0000041101.87065.C9