@article{fdi:010018287,
  title = {{Q}uantitative estimation of seed desiccation sensitivity using a quantal response model : application to nine species of the genus {C}offea {L}.},
  author = {{D}ussert, {S}t{\'e}phane and {C}habrillange, {N}athalie and {E}ngelmann, {F}lorent and {H}amon, {S}erge},
  editor = {},
  language = {{ENG}},
  abstract = {{S}eed desiccation sensitivity was studied in nine species of the genus #{C}offea$ by measuring seed viability after equilibration over various saturated salt solutions. {A} quantal response model based on the logistic distribution was developed in order to describe the typical {S}-shaped patterns observed. {T}he closeness of fit of the desiccation sensitivity model was shown, and the assumption that seed desiccation sensitivity follows a continuous distribution within species was verified. {F}or each species, the water content at which 50% of initial viability was reached, {WC}50, and a specific parameter describing the intra-specific variability, {B}eta, were calculated using a non-linear regression. {A} simplified water sorption model was developed which allowed easy calculation of water activity and water potential corresponding to {WC}50 (a{W}50 and psi50) for relative humidities ranging between 10 and 100%. {D}istribution of {WC}50 and psi50 (or a{W}50) in the genus #{C}offea$ was homogeneous within the following intervals : from 0.05 to 0.38 g {H}2{O}/g dw for {WC}50 or psi50 was used for classification. {T}he continuum for desiccation sensitivity observed within the nine species studied confirmed that coffee is an appropriate material for studying desiccation sensitivity. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{CAFE} ; {GRAINE} ; {DESSICCATION} ; {SENSIBILITE} {RESISTANCE} ; {MODELISATION}},
  booktitle = {},
  journal = {{S}eed {S}cience {R}esearch},
  volume = {9},
  numero = {2},
  pages = {135--144},
  ISSN = {0960-2585},
  year = {1999},
  URL = {https://www.documentation.ird.fr/hor/fdi:010018287},
}