See the "Canna" cultivar gallery for photographs of "Canna" cultivars. Quince is also used as rootstock for certain pear cultivars. This article includes a list of tobacco cultivars and varieties. These hybridization events produced the triploid cultivars of bananas commonly grown today. There are thousands of cultivars of these three species. Wine brandy is produced from a variety of grape cultivars. Newer gynoecious hybrid cultivars produce almost all female blossoms. Approximately forty cultivars are currently grown. Plant breeders expect legal protection for the cultivars they produce. Some cultivars of tangerines ripen by winter. Pollination for these cultivars degrades the quality. Hundreds of peach and nectarine cultivars are known. Budding is the easiest method of vegetative propagation used for improved cultivars. Cavendish bananas are a subgroup of the triploid (AAA) group cultivars of "Musa acuminata". There are many peanut cultivars grown around the world.