Artículos de revistas
Redistribuição de nutrientes em folhas de pinhão-manso entre estádios fenológicos
Fecha
2011-11-01Registro en:
Revista Brasileira de Engenharia Agricola E Ambiental. Joao Pessoa Pb: Universidade Federal da Paraíba (UFPB) Ccsa, v. 15, n. 11, p. 1175-1179, 2011.
1415-4366
10.1590/S1415-43662011001100010
S1415-43662011001100010
WOS:000208671500010
S1415-43662011001100010.pdf
Autor
Texas Tech Univ
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Universidade Estadual Paulista (Unesp)
UAEA
Institución
Resumen
Nutrient redistribution from mature leaves to growing structures is an important process in plant physiology. Each nutrient is redistributed in a different rate and time. This study aimed to quantify redistribution of macronutriens and minor nutrients in Jatropha curcas leaves through five phenological phases (expanding leaf, young leaf, mature leaf, senescing leaf, and dry leaf). It was observed that the nutrients P, K, Cu, and Zn are intensively redistributed from older to younger jatropha leaves, while N, Ca, Mg, Fe, and Mn are poorly redistributed. Leaf senescence causes a loss of the nutrients that are not redistributed because they will need to be re-absorbed for supporting the growth of new structures in the plant.