IFEVA 02662
INSTITUTO DE INVESTIGACIONES FISIOLOGICAS Y ECOLOGICAS VINCULADAS A LA AGRICULTURA
Unidad Ejecutora - UE
artículos
Título:
Predicting changes in dormancy level in natural seed soil banks.
Autor/es:
BATLLA D. AND BENECH-ARNOLD R.L. (
Revista:
PLANT MOLECULAR BIOLOGY
Editorial:
SPRINGER
Referencias:
Año: 2010 vol. 73 p. 3 - 13
ISSN:
0167-4412
Resumen:
The possibility of accurately predicting timing
and extent of seedling emergence from natural seed soil
banks has long been an objective of both ecologist and
agriculturalist. However, as dormancy is a common attribute
of many wild seed populations, we should first be able
to predict dormancy changes if we intend to predict seedling
emergence in the field. In this paper, we discuss the
most relevant environmental factors affecting seed dormancy
of natural seed soil banks, and present a conceptual
framework as an attempt to understand how these factors
affect seed-bank dormancy level. Based on this conceptual
framework we show approaches that can be used to
establish quantitative functional relationship between
environmental factors regulating dormancy and changes in
the seed-bank dormancy status. Finally, we briefly explain
how we can utilize population-based threshold models as a
framework to characterize and quantify changes in seed
sensitivity to environmental factors as a consequence of
dormancy loss and/or induction.
