The parents of Ruoqiang jujube are Huizao jujube in xinzheng city, Henan Province, with an average fruit weight of 9.7 grams, orange-red color 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 stone is small, and the drying rate is 50%. Due in early September.
Introduction breeding or introduction process: 0. 1 10000 jujube seedlings were introduced from xinzheng city in 1987, and 60300 jujube seedlings were introduced in 1988, with annual adjustment of 1990- 1993.
Suitable planting range: The suitable planting range of this variety is Bazhou area. Variety characteristics: Ruoqiang jujube is orange-red with average fruit weight 1 1.4g, with excellent 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%, the kernel and small meat are separated, and the dried jujube can be pulled out with a drying rate of 60%. In the early September of maturity, the tree is vigorous, with strong uniaxial elongation, strong adaptability, high and stable yield and excellent fruit quality, which 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: the propagation mainly adopts ramet propagation, and the root seedlings are transplanted to the field for planting after returning to the nursery for one year.
Key points of cultivation techniques: ditching seedling-irrigation-fertilization-variety improvement-pruning-pest control? harvest
Stress resistance: drought-resistant, wind-resistant, ridge-resistant, and resistant to pests and diseases.
Quality or special use value: average single fruit weight 1 1.4g, orange-red, good quality, soluble solid content of fresh jujube 40.8%, edible rate 97%, total sugar content of dried jujube 74.88%. 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. 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".
The results of regional (introduction) test prove that
Test sites: Zaoyuan in Nursery of Ruoqiang County, Zaoyuan in Tieganlike Township of Ruoqiang County, and Lianzao Garden of the 36th Regiment of the Second Agricultural Division of Zaoyuan in Yingwusitang Village of Wayouxia Township of Ruoqiang County.
Test scale: The total scale is 70,000 mu.
The results showed that Ruoqiang jujube tree grew vigorously, with strong uniaxial elongation and adaptability, high and stable yield and excellent fruit quality. The germination and leaf exhibition period of Ruoqiang jujube 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. fruit
August 28th of 10 to the beginning 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-resistant, can only resist the low temperature of MINUS 20 degrees, wind-resistant, ridge-resistant, pest-resistant ability.