Renqingwudou is a mid-late maturing variety, with spring sowing 120 days and summer sowing 105 days. The plant height is about 1 m, and there are 8 ~ 10 fan-shaped branches. The seedlings are light green, and turn dark green after 6 leaves, and the veins are light green, which is more obvious.
Leaf blade ovoid, medium size. White flowers, concentrated flowering period, large frame, stable growth and lodging resistance. Pod setting performance is very strong, generally 200 pods, up to 400, 2 capsules per pod, and occasionally 3 capsules. 100 grain weighs 42 grams, which is twice that of ordinary soybean. The seeds are black and shiny, the umbilical line of the beans is white, and the inner core is green and crystal clear.
Zhangping Qingrenwu soybean is said to be bred from a small amount of seeds bought by farmers in Xinqiao, Zhangping from a Chinese medicine shop in Zhangzhou before liberation. Yu 1956 was listed as a national precious soybean variety. This variety is rich in protein, which is nutritious, nourishing and healthy, and has the effects of clearing away liver-fire, improving eyesight and clearing away heat and toxic materials. Therefore, it is also called "Qingliangwu" and can be used as medicine. In Compendium of Materia Medica, there are as many as 59 prescriptions for unilateral treatment with black beans, involving internal medicine, gynecology, surgery, facial features, drug poisoning and so on. , and a wide range of uses. It is usually used as a refreshing, nourishing and strong medicine, and can also be made into herbal tea.
Zhangping Renqing black bean is produced in zhangping city, Fujian, and has been cultivated for nearly a hundred years. It is said that before liberation, farmers in Xinqiao, Zhangping bought a small amount of seeds from a Chinese medicine shop in Zhangzhou for trial planting and breeding, which was listed as a national precious soybean variety in 1956 (Zhangping County Records 1990). The introduction and cultivation of Renqing black bean in Zhangping has a history of 100 years, and it has been listed as a local soybean variety in Fujian Province (Records of Local Soybean Varieties in Fujian Province). The altitude of the main producing area is170-300m. The main producing area belongs to alluvial land of river valley, with loose and fertile soil and sufficient temperature and light, which is suitable for soybean growth. This variety belongs to autumn soybean type, with limited pod-setting habits, erect stems, convergent plant types, dark green leaves, purple flowers and brown fur, dark brown pods at maturity, oblate seeds and 100-seed weight of 23-25g. Generally, seeds are sown before beginning of autumn, and the growth period is about 105 days. The seed coat is black, the cotyledons are green, the hilum is black, and there is a small white hook line on the hilum, which forms the remarkable characteristics of Zhangping Renqing black bean. Qingren black bean has obvious regional characteristics, rich nutrition, dark seed coat color, green kernel, anthocyanin content as high as 30 mg/kg and excellent quality. This variety is rich in protein, which is nutritious, nourishing and healthy, and has the effects of clearing away liver-fire, improving eyesight and clearing away heat and toxic materials. Therefore, it is also called "Qingliangwu" and can be used as medicine. In Compendium of Materia Medica, there are as many as 59 prescriptions for unilateral treatment with black beans, involving internal medicine, gynecology, surgery, facial features, drug poisoning and so on. , and a wide range of uses. It is usually used as a refreshing, nourishing and strong medicine, and can also be made into herbal tea. In the market, the price is 30-40 yuan per kilogram, which has a good market development prospect.
territorial scope
Zhangping Renqingwu bean is produced in xinqiao town, Shuangyang, heping town, Hu Xiang, Wuci, Yongfu, Guilin Town, Xin 'an, Luzhi, Arch Bridge, Guantian, Nanyang, Lingdi, Xiyuan and Chishui 15 towns (streets) in Fujian. Zhangping is located in the southwest of Fujian Province, upstream of Jiangbei Creek in Jiulong. Geographical coordinates are11710' ~17 45' and 24 54' ~ 25 47' north latitude. The territory is 98 kilometers long from north to south and 58 kilometers wide from east to west, with a land area of 2,975 square kilometers. Zhangping city is167m above sea level, xinqiao town government, which is the main producing area of green beans, is 295m above sea level, Shuangyang town government is 3 10/0m above sea level, heping town government is 219m above sea level and Hu Xiang town government is 247m above sea level. Zhangping city is connected to Yongchun County and Anxi County in the east, Hua 'an County and Nanjing County in the south, xinluo district City in the west and Yong 'an City and Datian County in the north. The terrain inclines from south to north to the central valley, with low mountains as the main part, Zhongshan part and few basins; As the hinterland of hawksbill mountain, Daiyun mountain and Bopingling mountain range, the altitude difference in the city is great, forming various microclimate areas. The vegetation coverage is good, and the forest coverage rate is 76.2%. Zhangping Renqing black bean is mainly produced in the alluvial land of river valley at an altitude of 170 m ~ 300 m, with loose and fertile soil and sufficient temperature and light. The unique environmental conditions have formed the excellent quality of Zhangping Renqing black bean with high anthocyanin content, and Xinqiao and other towns are the main producing areas of Zhangping Renqing black bean. Zhangping Renqing Black Bean Geographical Indication has a registered protection area of 600 hectares. 20 1 1 year, the total planting area of Renqing black beans in Zhangping is 283.2 hectares, with a total output of 622 tons.
Product quality characteristics
1. External sensory characteristics: Zhangping Renqing black bean is oval with a small white hook line at the navel. The seed skin is black and shiny, the kernel is green, and the quality characteristics are remarkable. 2. Internal quality indicators: anthocyanin content is 29 mg/kg ~ 35 mg/kg, crude protein content is 33% ~ 40%, soluble sugar content is 8% ~ 10%, and starch content is 49% ~ 60%. The quality grade of Zhangping Renqing black bean products is implemented according to Q/ZSQ001-201Zhangping Renqing black bean, and the hygiene index is equivalent to NY53 10 pollution-free food soybean.