Seed bank modelling of volunteer oil seed rape: from seeds fate in the soil to seedling emergence

Studies were conducted to estimate parameters and relationships associated with sub-processes in soil seed banks of oilseed rape in Gorgan, Iran. After one month of burial, seed viability decreased to 39%, with a slope of 2.03% per day, and subsequently decreased with a lower slope of 0.01 until 365 days following burial in the soil. Germinability remained at its highest value in autumn and winter and decreased from spring to the last month of summer. Non-dormant seeds of volunteer oilseed rape did not germinate at temperatures lower than 3.8 ºC and a water potential of -1.4 MPa ºd. The hydrothermal values were 36.2 and 42.9 MPa ºd for sub- and supra-optimal temperatures, respectively. Quantification of seed emergence as influenced by burial depth was performed satisfactorily (R² = 0.98 and RMSE = 5.03). The parameters and relationships estimated here can be used for modelling soil seed bank dynamics or establishing a new model for the environment.

Reverend Frank Dowling and his wife, Bethia Paul Dowling, 1935

Reverend Frank Dowling and his wife, Bethia Paul Dowling, 1935.

Photograph - Florence (wife of Francis Willson)

A photograph of Florence Upper, the wife of Francis Bond Head Willson.

Letter - Col. Frank Case McCordick to his wife May McCordick, 1915

A letter from Col. Frank C. McCordick to his wife May dated 24 December 1915. He discusses plans for Christmas dinner in the mess room and decorating the hall with holly. He mentions friends who have sent Christmas cards and asks about his daughter Doris.

Comitum princeps tu mihi eris: Rape and the Distribution of Auctoritas in Ovid's Fasti

In Ovid’s Fasti, the rape narratives of Callisto, Lara, Flora, and Carna contain the common themes of the distribution of auctoritas and/or the subversion of auctoritas. While all four characters are victims of rape, Callisto loses auctoritas as a result of her rape by Jupiter, whereas Flora and Carna gain auctoritas from their rapes by Zephyrus and Janus respectively. Since Ovid associated Augustus with Jupiter on more than one occasion in the poem, it appears that readers were meant to see a parallel between Jupiter’s dealings with auctoritas in these narratives and Augustus’ exercise of his auctoritas over Rome. Zephyrus’ and Janus’ bestowal of auctoritas upon their victims was intended to be a foil for Jupiter’s denial of auctoritas to Callisto and strict regulation of his own auctoritas, which Lara’s narrative exemplifies, in order for Ovid to criticize the overwhelming nature of Augustus’ auctoritas, as well as specific Augustan policies.

Indenture of Sale from Adam Hutt and wife Dorothy to Mathias Cairns, 1806

Indenture of bargain and sale from Adam Hutt and his wife Dorothy of Lincoln County regarding 27 acres to Mathias Cairns, of Stamford Township beginning at the northeast angle of Lot 29 of Stamford Township. This was registered on May 16, 1839 in Book U, folio 239 - instrument no. 12448, January 17, 1806.

Indenture Thomas L. Helliwell and his wife Mary to Samuel D. Woodruff

Indenture between Thomas L. Helliwell and his wife Mary to Samuel D. Woodruff for pew 15 in St. George’s Church, St. Catharines (2 copies), May 7, 1880.

The fisherman and his wife.

Érase una vez un pescador y su esposa que vivían cerca del mar, pero ella no era feliz en su pequeña cabaña. Un día, su marido le cuenta que ha pescado un pez encantado que habla y puede hacer realidad un deseo. La mujer le dice que pida una casita más grander.