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Lemcoff, J.H., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Chimenti, C.A., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Davezac, T.A.E., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Genetic variation for osmotic adjustment was examined in a group of maize hybrids during vegetative and silking stages. Estimates of osmotic adjustment were derived from measurements of leaf relative water content (RWC) and osmotic potential (ψo) before day-break. The degree of adjustment was estimated from the ln RwC/ln ψo relationship. All cultivars examined showed some degree of osmotic adjustment and significant differences (P < 0.05) were found among them. The utility of measurements in early vegetative stages as a mean of selection for osmotic adjustment in silking stage was established. A positive tendency was observed between osmotic adjustment and phenotypic stability.
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תנאי שימוש
Osmotic adjustment in maize (Zea mays L.): Changes with ontogeny and its relationship with phenotypic stability
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Lemcoff, J.H., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Chimenti, C.A., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Davezac, T.A.E., IFEVA, Av. San Martin 4453, 1417 Buenos Aires, Argentina
Osmotic adjustment in maize (Zea mays L.): Changes with ontogeny and its relationship with phenotypic stability
Genetic variation for osmotic adjustment was examined in a group of maize hybrids during vegetative and silking stages. Estimates of osmotic adjustment were derived from measurements of leaf relative water content (RWC) and osmotic potential (ψo) before day-break. The degree of adjustment was estimated from the ln RwC/ln ψo relationship. All cultivars examined showed some degree of osmotic adjustment and significant differences (P < 0.05) were found among them. The utility of measurements in early vegetative stages as a mean of selection for osmotic adjustment in silking stage was established. A positive tendency was observed between osmotic adjustment and phenotypic stability.
Scientific Publication
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