Pruning grape vines is a midwinter job that keeps plants shapely, healthy and fruiting well. Climate change means that grape vines, once the preserve of large conservatories and warmer hemispheres, ...

Anthocyanins are important, red, blue, purple and purple-black plant pigments that are widely distributed in the cell vacuoles of flowers, fruits, roots, stems and leaves. 1,2 Grape anthocyanins are ...