Medium Peanut No. 5
Alias or codename: 87—77.
Breeding unit: Institute of Oil Crops, Chinese Academy of Agricultural Sciences.
Parental and breeding methods: With Zhonghua No. 1 as the mother and Ehua No. 4 as the father, hybrid breeding.
Examination and approval: In 1998, it passed the approval of Varieties in Hubei (Hubei No. 145), Sichuan and the whole country (National Examination oil 980003). In 2000, he was awarded the national subsidy for new varieties of science and technology research, and in 2001, he won the second prize of Hubei Provincial Science and Technology Progress Award.
Characteristics: Pearl bean type early maturing large-grain peanut variety. The plant type is upright, relatively compact, and continuous flowering. The height of the plant is 47.7 cm, and the length of the side branches is 56.2 cm. The total number of branches is about 12, and the number of fruiting branches is about 8, and the fruiting range is 7 to 8 cm. The stem is thick and thick, the diameter of the base of the main stem is 5.8 mm, there is a small amount of anthocyanin at the base of the stem, and the stem branches are sparsely hairy. The leaflets are oval and green, 55 mm long and 34 mm wide. The corolla is yellow and medium-sized, with a flag petal height of 12.9 mm and a width of 16.4 mm. The number of results per plant was 20, and the productivity of each plant was 29g. The pods are axe-shaped, the mesh is larger, the reticulation is medium, the fruit beak is medium, and the results are concentrated. The two pods are dominant, the pods are larger, 38mm long and 17mm wide. Ziren is oblong oval, 18mm long and 14.7mm wide. The fruit weighs about 180g, and the hundred kernel weighs about 80g. The kernel yield is about 75%. Seed kernel oil content 55.43%, crude protein content 26.51%. The root system is well developed and drought tolerant. The full reproductive period is about 125 days.
Yield performance: In the regional test of peanut (Yangtze River Basin slice) in Hubei Province and the whole country, the average yield was 341.7kg/666.6m2 and 306.8kg/666.6m2, respectively, which increased by 18.95% and 10.52% compared with the control, respectively, and the yield increase was very significant and ranked first among the participating varieties.
Cultivation points: Suitable for spring sowing in the Yangtze River Basin, generally sown in mid-to-late April. Summer broadcast no later than June 15. The plant type is upright and compact, and it should be properly densely planted. Spring sowing 8000~10000 holes/666.6m2, summer sowing above 10000 holes, double grain hole sowing. Sufficient base fertilizer should be applied during high-yield cultivation. Mulching cultivation pays attention to chemical regulation in the medium term and rust prevention and control in the later stage. During the period of fertility, the high-yield management measures of Fuda are adopted in the pre-promotion, central control and post-guarantee, and attention is paid to the prevention and control of diseases and insect pests, so as to achieve high-yield, stable yield, high quality and high efficiency. It is not suitable for planting on the ground where green blight occurs.
Suitable planting area: suitable for planting in the non-green blight occurrence area of the Yangtze River Basin.
