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京冬8号是北京市农林科学院作物所1980年用((阿芙乐尔×5238-016)F_1×红良4号)的第4代优良品系为母本与以京农79-106(丰抗8号的姊妹系)为父本杂交,经10年的精心选育于1990年育成.已先后通过北京、天津市及河北省的审定.产量表现:1984～1994年14次产量试验,平均6082.5kg/hm~2,比对照增产10.9%.大面积生产5250～6750kg/hm~2.1996年北京顺义县俸伯乡桥头村6.67hm~2在春季干旱少雨、蚜虫危害严重的情况下产量达6975kg/hm~2.主要特性:叶片较宽大,长势旺盛,生长发育进程较快.分蘖力和成穗率中上等.粒大饱满度好,千粒重高(45g 以上)而稳定.单穗重1.1～1.2g 以上,属稳重型品种.株高85～90cm,茎秆粗壮,弹性好,根系发达,遇风雨不发生根倒伏,茎秆不折断,回弹能力强.中早熟、灌浆快,落黄好,抗早衰突出.抽穗和成熟比丰抗8
Jingdong 8 is a Beijing-based Institute of Crops, Academy of Agriculture and Forestry in 1980 with ((Aurora × 5238-016) F_1 × Hongliang 4) the fourth generation of elite lines and female Beijing Jingong 79-106 Anti-8 sister line) as the male parent, after 10 years of careful breeding bred in 1990. Has passed the Beijing, Tianjin and Hebei Province validation.Production performance: 1984 ~ 1994 14 yield test, the average 6082.5kg / hm ~ 2, yield 10.9% more than the control. Large-scale production of 5250 ~ 6750kg / hm ~ 2. 6.67hm ~ 2 Qiaotou village of Shunyi County in Beijing Shunyi County in 1996 in the case of aprilid rainfall, the output of 6975kg / hm ~ 2. Main characteristics: The leaves are wide, vigorous growth, rapid growth and development, tillering force and ear rate in the middle. Grain fullness fullness, 1000-grain weight high (45g or more) and stable. ~ 1.2g, belongs to the stable type. The plant height is 85 ~ 90cm, the stalk is sturdy, the elasticity is good, the root system is developed, the stalk does not fall down in case of storm, the stalk is not broken, the resilience is strong. Huang Hao, anti-premature aging prominence. Heading and maturity than Feng-8