Browsing Horticulture by Subject "Vine Biology"

Considerations on Spatial Crop Load Mapping

van Zoeren, Janet (Cornell University, 2019-08)

James Taylor, of the Efficient Vineyard Program, discussing how cost- and time-effective methods to spatially map crop load across the vineyard could provide a decision support system to help managers apply the best shoot ...

Deconstructing cold hardiness: variation in supercooling ability and chilling requirements in the wild grapevine Vitis riparia

van Zoeren, Janet (Cornell University, 2019-08)

Jason Londo, Geneva-based USDA-ARS scientist, examined 43 Vitis riparia accessions to examine cold-hardiness traits that decrease the likelihood of winter injury, including low mid-winter bud freezing temperatures, high ...

Determining which vegetative index is best for your vineyard

Podolec, Michelle (Cornell University, 2021-08)

Tractor-mounted sensors use optical sensing to measure canopy fill. This study compared different combinations of wavelengths that comprise different "vegetative indexes".

Grape mapping populations reveal genetic variation in bloom and fruit development

Martinson, Timothy A.; Kovaleski, Al; Reisch, Bruce (Cornell University, 2020-08)

Bruce Reisch's three related mapping populations are helping discover genetic markers for a variety of traits such as timing of bloom and fruit development.

X-ray imaging allows nondestructive investigation of grape bud morphology and freezing

Wiepz, Rebecca (Cornell University, 2020-03)

The use of microtomography (3D X-ray imaging) allowed Grad student Al Kovaleski and USDA scientist Jason Londo to track changes in bud structure during deacclimation and freezing events.