Where does Ruoqiang Jujube belong?

Jujube is native to xinzheng city, Henan Province, with an average fruit weight of 9.7 grams, orange red and good quality. The soluble solid content of fresh jujube is 32%, the edible rate is 97.3%, the total sugar content of dried jujube is 47. 1 1%, the kernel is small and separated from meat, and the drying rate is 50%. Due in early September.

Introduction breeding or introduction process: 1 10000 jujube seedlings 1987 introduced from xinzheng city, 1988 introduced 60300 plants, 1989 introduced 50000 plants, adjusted from 1990 every year. In 2000, 300,000 seedlings were transferred, in 2006, 54.38+0.60 million seedlings were transferred, in 2002, 2.564 million seedlings were transferred, and in 2004, 6.5438+0.5 million seedlings were transferred. At present, the planting area of jujube trees is 70,000 mu, with 7.5 million seedlings.

Suitable planting range: Ruoqiang area is dry, with less rain and more sandstorms, so this variety is suitable for such climatic conditions.

Variety characteristics: the average fruit weight of Huizao is 1 1.4g, with superior quality. The soluble solid content of fresh jujube is 40.8%, the edible rate is 97%, and the total sugar content of dried jujube is 74.88%. When the dried jujube is broken, the gold thread can be pulled out, and the drying rate is 60%. Mature in early September, the tree is vigorous and open, with brown perennial branches, reddish-brown developing branches and small dark green leaves. Uniaxial elongation growth ability is strong, adaptability is strong, the trunk root is divided into two layers, and fibrous roots are planted on the top of the trunk root in large quantities, which has high and stable yield and excellent fruit quality, and is suitable for fresh eating and drying.

Main technical and economic indicators: Ruoqiang adopts ditching and planting jujube to improve the survival rate of seedlings, and promotes the 1×4, 2×4 meter dwarf close planting mode to improve the early yield of jujube orchard; Prune jujube trees in time in winter and summer, and spray appropriate amount of sulfur mixture to prevent pests in spring; Jujube trees planted for 5 years have an average yield of 8-1000 kg per mu, an average yield of 800- 1000 kg per mu, and an income of 6000 yuan per mu.

Key points of propagation technology: Ruoqiang adopts sowing and seedling raising technology, strengthens fertilizer and water management, and grafts after one year.

Key points of cultivation techniques: ditching seedling cultivation-irrigation-fertilization-variety improvement-shaping and pruning-pest control-harvesting.

Stress resistance: drought-resistant, wind-resistant, ridge-resistant, and resistant to pests and diseases. So far, there are no jujube witches' broom, clubroot, yellow thorn moth and big ball scale.

Quality or special use value: the average fruit weight is 65438+3 1.9MG, orange-red, with high quality. The soluble solid content of fresh jujube is 40.8%, the edible rate is 97%, the total sugar content of dried jujube is 74.88%, and the vitamin C content of dried jujube is 100g, which has important medical and health care value.

Main defects: it can only resist the low temperature of MINUS 20 degrees, and is suitable for the development of mature areas with little rain.

Award-winning appraisal: it was certified as "green food" by China Green Food Development Center in 2002; It was awarded as "2003 Xinjiang Agricultural Famous Brand Product". In 2004, Ruoqiang "Loulan Jujube" was awarded the first prize of "China Quality Jujube Product" by China Quality Agricultural Products Service Association and China Horticultural Association Dried Fruit Branch.

Breeding Report of Jujube Variety (Ruoqiang Jujube)

Jujube originated in xinzheng city, Henan Province, and xinzheng city jujube is characterized by its average fruit weight of 9.7 grams, orange-red color and high quality. The soluble solid content of fresh jujube is 32%, the edible rate is 97.3%, the total sugar content of dried jujube is 47. 1 1%, the stone is small, and the drying rate is 50%. Due in early September.

Ruoqiang County started the introduction and planting experiment from 1987, and110000 jujube trees were introduced from xinzheng city, and 1988 introduced 60300 jujube trees, 1989 and/kloc-. 199 adjusted 500,000 seedlings; In 2000, 300,000 seedlings were transferred; 200 1 600,000 seedlings adjustment; In 2002, 2.54 million seedlings were transferred; In 2003, 2.564 million seedlings were transferred; In 2004, 654.38+500,000 seedlings were adjusted. At present, it has been fully promoted, forming a planting area of 70,000 mu and 7.5 million jujube trees.

Four experimental observation points, covering an area of 77 mu, were set up in Zaoyuan Nursery in Ruoqiang County, Zaoyuan in Tieganlike Township in Ruoqiang County, Zaoyuan in Yingwusitang Village in Wayouxia Township in Ruoqiang County, and Zaoyuan in the 36th Regiment of the Second Agricultural Division. The test sites were randomly selected, and a total of 25 test observation points were set up, each observation point was 10 m2 (4 plants). From 1992 to 2003, the growth, fruiting, stress resistance and phenological changes of jujube trees were continuously observed and recorded and analyzed in detail. By 2004, the planting area of Ruoqiang jujube reached 70,000 mu.

Ruoqiang County is cold and snowy in winter, hot and rainy in summer, with large sandstorm and large daily temperature difference. In recent ten years, the average temperature 12, the average annual precipitation 3 1.2mm, the average annual evaporation 2920mm, the annual sunshine hours 3102.2h, and the frost-free period 198.7 days have created red dates in Ruoqiang area.

Jujube (Ruoqiang jujube) is mainly planted by ditching to improve the survival rate of seedlings, popularize the 1×4, 2×4 meter dwarf dense planting mode, and improve the early yield of jujube orchard; Jujube trees should be pruned in time in winter and summer. In winter, dry pruning is the main method, and in summer, pruning is the main method, so as to cultivate tree shape and increase yield. Spraying suitable sulfur mixture to prevent insects in spring, strengthening fertilizer and water management throughout the year, loosening soil and weeding in time, the average yield of fresh jujube trees planted for 5 years is 8- 10 kg, the average yield per mu is 800- 1000 kg, and the income per mu is 6000 yuan.

The average fruit weight of jujube (Ruoqiang jujube) is 1 1.4g, which is orange-red and has good quality. The soluble solid content of fresh jujube was 40.8%, which was 6.8 percentage points higher than that of Xiangzao and 1 1.9 percentage points higher than that of Lizao. The edible rate is 97%, which is basically the same as other varieties; The total sugar content of dried jujube is 74.88%, which is 8.88 percentage points higher than that of Zanhuang jujube. The core is small and separated from the meat, and the dried jujube can pull out the gold thread. The drying rate is 60%, which is about 10% higher than Zanhuang jujube, Xiangzao jujube and Lizao jujube. Mature in early September, the tree is vigorous and open, with grayish brown perennial branches, reddish brown developing branches and small dark green leaves. Uniaxial elongation has strong growth ability, strong adaptability, high and stable yield and excellent fruit quality, which is suitable for fresh eating and drying. Ruoqiang area is dry, with less rain and more sandstorms. This variety is suitable for such climatic conditions.

The germination and leaf spreading period is from April 12 to April 2 1 day; The flowering period is from May 9th to July 3rd1; The fruit expansion period is from May 25th to August 30th. The fruit ripens from August 28th of 10 to early of 10; Deciduous period: 65438+1October 20th-165438+1October10; The dormancy period is 1 1 month-the end of March of the following year.

Drought resistance, wind resistance, thin ridge and pest resistance. So far, there are no jujube witches' broom, clubroot, yellow thorn moth and coccidiosis. 100 g of dried jujube contains vitamin C 3 1.9 mg, which has important medical and health care value. Jujube has the effects of beauty, anti-aging, invigorating spleen and stomach, benefiting qi and promoting fluid production, and detoxicating. Suitable for fresh food, drying and processing of jujube series products.

The existing defect is that it can only resist the low temperature of MINUS 20 degrees, which is suitable for the development of areas with little rain in mature period, and it will crack when it rains in mature period.

In 2002, it was certified as "green food" by China Green Food Development Center; It was awarded as "2003 Xinjiang Agricultural Famous Brand Product". In June 2004, Ruoqiang "Loulan Jujube" was awarded the first prize of "China Quality Jujube Product" by China Quality Agricultural Products Service Association and China Horticultural Association Dried Fruit Branch.