Black Titi thick skin, crisp flesh, blue-black skin, bright as paint, sweet and sour taste; red Titi flesh is hard and crisp, flesh color is slightly transparent white, sweet and tasty, pure flavor. \x0d\ Heti is the short name of Heti grapes, Heti grapes are Eurasian species - native to the United States, introduced into Shandong Laixi City in 1992. Botanical traits: shoot tips green - with sparse tomentum annual branches light yellow-brown. Young leaves are yellowish green with sparse tomentum on the back - mature leaves are smooth and toment-free on both sides, with serrated leaf margins. Bisexual flowers. Fruit characteristics: Fruiting spikes are long conical - average longitudinal diameter 28 cm - transverse diameter 16 cm - average spike weight 500~700 grams, average grain weight 8~10 grams. Thick skin and crisp flesh, blue-black pericarp, bright as paint, sweet and sour taste, soluble solids content of 17% or more. The fruit stalk is not easy to fall off, resistant to storage and transportation. \x0d\1, Black Tee should not be eaten more, otherwise it will produce fire, diarrhea and other diseases.　2, black mention taboo and seafood, fish, radish with food; taking ginseng people avoid eating black mention.　3, Black Tee taboo and tetracycline with food.　4, can not drink water immediately after eating Black Tip, otherwise it is easy to diarrhea.　5, black raisin contains high sugar, diabetic patients should not eat more. \x0d\Rhonti, also known as late red, red earth, red raisin, the trade name red raisin, belongs to the Eurasian species, is by the United States California State University in the 1970s with (Emperor × L12-80) × S45-48 cross-breeding. Fruit spikes large, good neatness, average single grain weight of 10 grams, the largest single grain weight of 13 grams, red or purple-red, medium-thick rind, easy to peel, firm and brittle flesh, tender and juicy, hardness, knife cut without flowing juice. Sweet and savory, unique flavor. late July began to color, late September ripe. Red earth grapes are not easy to fall off the grain, storage and transportation, refrigeration can be up to 2-3 months, long shelf life. Good productivity, general yield of 1750-2000 kilograms per mu, superior quality, market competitiveness, is the most valuable varieties of table grapes and one of the most commercially viable varieties, the development prospects are broad. \x0d\ Red grapes contain a variety of fruit acids, vitamins, minerals. The flavor is sweet and acidic and flat, replenishes qi and blood and strengthens the bones and muscles, nourishes the face, stops coughing, and settles the fetus. \x0d\ Redti grapes spikes large, colorful, crisp and hard texture, high sugar content, single fruit weight up to a maximum of more than 20 grams, a single spike up to about 1 kg. \x0d\ red grapes of medicinal, nutritional and health effects are very obvious, low blood sugar can be relieved by consuming about 50 grams, will immediately relieve the symptoms of hypoglycemia. \x0d\ Redti's consumption can be used as gazpacho peeled into thin slices, with all its own sugar can be consumed as a natural sweet dish.