Introgression of spine-free and primocane fruiting from red raspberry (Rubus idaeus L.) to black raspberry (R. occidentalis L.)

ISHS XII I8nternational Rubus and Ribes Symposium: Innovative Rubus and Ribes Production for High Quality Berries in Changing Environments Introgression of spine-free and primocane fruiting from red raspberry (Rubus idaeus L.) to black raspberry (R. occidentalis L.)