sowing and harvesting date are the most important agronomic factors that we should pay attention to proper date selection for sowing date in order to achieve good crop establishment and to harvest date in order to achieve the best time for crop quantities and qualities ripening. farmers intend to germinate sugar beet seed at minimum environmental temperature. sowing date affects crop canopy dev...

Defoliation has frequently been proposed as a means of controlling Cirsium arvense (L.) Scop. (Californian thistle, Canada thistle, creeping thistle, perennial thistle), an economically damaging pastoral weed in temperate regions of the world, but its optimization has remained obscure. We developed a matrix model for the population dynamics of C. arvense in sheep-grazed pasture in New Zealand t...

OBJECTIVE To evaluate and compare the laboratory and clinical outcomes of vitrification with slow-freezing method for cryopreservation of embryos and blastocysts in an in-vitro fertilisation programme. DESIGN Retrospective analysis of all the 104 cycles of frozen embryo and blastocyst replacements from 2003 to 2008 and all the 149 cycles with embryos or blastocysts for vitrification from 2006...

Freezing injury to the cortical plate of the newborn rat results in the formation of a focal region of cerebrocortical microdysgenesis resembling, in many ways, human 4-layered microgyria. Previous research has shown that neurons born during embryonic day (E) 20 migrate through the initial damage and take their place in the cell-dense layer of the microgyric lesion. The current study was conduc...

Goal. To determine the resistance of blackberry varieties to low temperatures in field and laboratory conditions; select most resistant investigate influence weather conditions on state their overwintering. Methods. Laboratory, field, analytical. Results. Weather were monitored autumn–winter period 2019/20 2020/21. It was established that winter months these years differ significantly terms tem...

A delay in autumn sea ice formation is an important consequence of Arctic Amplification. Baffin Bay one such region impacted by delayed formation, though spatiotemporal analyses to date have not detailed the evolution and drivers changes. In this study, we document abrupt cover changes key transition month October from 1950 2021. The mean variance dramatically change 2001 onward with a largely ...

This review compares fall acclimation patterns and lift/store practices for Pseudotsuga menziesii var. menziesii, Picea glauca (Moench) Voss x P. engelmannii Parry ex engelm and Pinus taeda L. seedlings. Spruce seedlings achieve budset and an endodormant state in late summer, coastal Douglas-fir in early fall, while loblolly pine achieves a less endodormant state with a limited amount of mitoti...

With global warming, the decrease in sea ice creates favorable conditions for Arctic activities. Sea surface temperature (SST) is not only an important driven factor of concentration (SIC) changes but also medium ocean–atmosphere interaction. However, response to varies different areas. Using optimal interpolated SST data from National Centers Environmental Information (NCEI) and SIC University...