Analysis on Characters and Application Potential of a Sorghum Sterile Line ‘Ji2055A’

＇ Ji2055A＇ is a superior sterile line sorghum bred by Institute of Crop Resources, Jilin Academy of Agricultural Sciences. It has a growing season of 112 days and a plant height of 70 cm. With a stable sterility rate of 100%, ＇ Ji2055A＇ has a stable male sterility and highly viable stignms. Selfing won＇t lead to seeds, This sterile line is strongly resistant to drought and lodging in addition to resistance to leaf spot and head smut. Generally, it has a yield of 3 000 -4 000 kg/hm2 and the hybrid seed yield is between 4 000 - 5 000 kg/hm2, with a high combining ability. There are six varieties approved by the state and the province, as well as another eight new combines under regional testing. The obtained hybrids are strongly resistant, widely adaptable with a great potential to increase yield, ＇ Ji2055A＇ has promoted the breeding and production of spring early maturing sorghum in China.

高粱不育系吉2055A特征特性与应用潜力分析

吉2055A是吉林省农业科学院作物育种研究所新选育的优良高粱不育系。该不育系生育期112 d,株高70 cm,不育率100%,不育性稳定,柱头生命力强,自交不结实;抗旱和抗倒伏能力强,抗叶斑病和黑穗病;一般产量可达3000～4000 kg/hm2,制种产量一般为4000～5000 kg/hm2;配合力高,已育成国家及省级审定品种6个,还有8个新组合正处于区域试验阶段,所配杂交种抗逆性强,适应性广,增产潜力大,对我国春播早熟区的高粱育种和生产起到了较大的推动作用。

高粱雄性不育系吉2055A的创制与应用

高粱雄性不育系吉2055A是吉林省农业科学院作物资源研究所以A_(1)型保持系314B作为母本,以印度高粱类型且对A_(1)型胞质恢复的871300为父本,经人工去雄杂交、自交、定向选择、回交转育等方法选育而成,该不育系具有不育性稳定、适应性广、抗逆性强、配合力高等特点,2009年申请国家植物新品种权,2015年获得授权。高粱雄性不育系吉2055A的成功选育,增加了吉林省高粱新资源类型,由其组配的多个高粱新品种均在北方春播早熟区生产中广泛应用。