Variety introduction "Red D'Anjou" is a new pear variety with deep red bud mutation, which was found in Washington State, USA. Shandong Province was introduced from National Pear Germplasm Park of USDA by 1997. Cultivation experiments in various places have proved that this variety has strong adaptability, easy cultivation, high fruit hardness and storage and transportation resistance. It is a late-maturing red variety with good comprehensive properties, which has high economic value and broad promotion prospects. The fruit of this variety is gourd-shaped, with an average single fruit weight of 230 grams and a maximum of 500 grams. The skin is purplish red, the fruit surface is smooth, with waxy luster, many fruit points, small and obvious, and beautiful appearance. Peduncle depression is shallow and narrow, sepals persist or remain, calyx depression is shallow and narrow, with wrinkles. The pulp is milky white with fine texture and few stone cells. After 1 week ripening, it becomes soft, soluble in the mouth and juicy. The flavor is sweet and sour, the aroma is rich and pleasant, the soluble solid content is above 14%, and the quality is the best. The fruit can be stored for 40 days at normal temperature, 6-7 months at-65438 0℃ and 9 months in modified atmosphere. The fruit ripening period in Jinan is from late September of 10 to early October of 10.

In order to control the growth of Honganjiu pear and achieve early high yield, it is best to choose Maodu pear as the rootstock of Honganjiu pear. The cold resistance is slightly worse than that of Pak Lei and Qiuzi pears in China, so it is suitable to build gardens in Bali planting area. Drought-resistant and cold-resistant, it grows well in mountainous hills and various soils with in-situ pH value of 6-7.80. The plant spacing in plain area is 4-5m× 3-4m, and that in hilly area is 3-4m× 2-3m. Before planting, dig deep into the soil and apply high-quality soil miscellaneous fertilizer, and then dig planting ditches to prepare for planting; Pollen is less, so pollination trees need to be configured. Pollination varieties can be selected, such as red corn and red barley.

In autumn, fertilizer and water management should be combined with deep ploughing and soil improvement, and the base fertilizer should be applied early, usually before the end of 10, with about 4000 soil miscellaneous fertilizers applied per mu; /kloc-0 is usually topdressing four times a year, and the stages are: before germination (mid-March), before flower bud differentiation after flowering (mid-May to early June), fruit expansion (July-August) and nutrient storage (after fruit harvesting to before defoliation), with nitrogen fertilizer as the main factor in the early stage and phosphorus and potassium compound fertilizer as the main factor in the later stage; Combined spraying, topdressing outside the roots, applying nitrogen fertilizer in the early stage, applying phosphorus fertilizer and potassium fertilizer in the middle stage, applying potassium fertilizer before fruit harvesting, and properly supplementing nitrogen after harvesting. Too many irrigation times can easily lead to the decline of fruit quality, so irrigation can be combined with fertilization, usually 1 year 3-4 times, and attention should be paid to flood control and water control before harvest. On this basis, mature trees should further strengthen the management of renewal, rejuvenation and fertilizer and water to prevent premature decline of trees.

Rotating shape and small crown sparse shape are suitable for tree shaping and pruning. Young trees have strong growth potential and erect branches, so pruning should be strengthened in summer, and artificial opening techniques such as pulling, bracing, splitting and holding should be adopted to alleviate the tree potential and promote flowering and fruiting.

Flower and fruit management measures mainly include thinning flowers and fruits and bagging. Flower thinning should be carried out from inflorescence separation to early flowering. Generally, leave 1 inflorescence every 20-25 cm, and all other inflorescences will be thinned out. Fruit thinning begins at 1 week after anthesis and is completed within 1 month. There are many flourishing trees and few weak trees. Thinning flowers and fruits should be completed within 26 days after flowering. In order to increase the commercialization of fruits, bagging cultivation should be carried out, and its bagging technology is basically the same as that of apples.

The resistance of this variety to cotton bacterial blight and pear scab is higher than that in Bali. Resistance to powdery mildew, leaf spot, fruit rot, pear rot (phytoplasma disease) and pear vein flavivirus is similar to Bali. Resistance to fruit borer

Sex is much higher than that in Bali, but it is particularly sensitive to mites, mainly paying attention to the prevention and control of mites such as red spiders.