A new male sterile (MS) mutant was found in 1988 in an inbred
line of cucumber (Cucumis sativus L.) in the greenhouse of
Sunseeds Company. The mutant is characterized by normal
corolla in both male and female flowers, normal fertility in
the female, and absence of pollen in otherwise normal-appearing...
To reduce the environmental impacts caused by gene flow from transgenic trees, reproductive sterility genes have been developed that use a floral regulatory element linked to a cell toxin. This results in dysfunction or ablation of floral tissues, causing sterility. However, floral promoters often permit low levels of expression in...
This investigation was undertaken to observe possible changes
in growth substances in Pyrus throughout the dormant period. The
primary objective was to determine if a correlation existed between
growth substance content and the inherent chilling requirement of
seeds and buds.
Samples of whole buds were taken at intervals from the...
Hydrogen cyanamide (CY) induced earlier budbreak, more
uniform and a higher percentage of budbreak in resting
poplar (Populus alba x P. gradidentata, NC 5339) plants.
However, it was phytotoxic to poplar when applied at 0.5 M
or higher concentrations. Percent budbreak increased and
percent dieback decreased when poplar plants were...
Identification of factors that affect water and sugar transport in strawberry could aid
in attempts to influence fruit size and quality. Apoplastic water potential (Ψaw) gradients
within the strawberry plant, that could influence water and assimilate transport, were
identified. Fruit expansion was very sensitive to water stress and occurred when...