高粱不育系吉2055A特征特性与应用潜力分析

Characteristics and Application Potential Analysis of Sterile Line Sorghum Ji2055A

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。

Ji2055A is a fine sterile line sorghum bred by Crop Breeding Institute,Jilin Academy of Agricultural Sciences.Its has growth period of 112 days,plant height of 70 cm,100% sterile rate and properties of stable sterility,strong vitality and unfruitful selfing;strong resistance to drought,lodging,leaf spot and dust brand;general yield of 3 000~4 000kg/hm2,seed output of 4 000~5 000 kg/hm2;strong combining ability.There are six varieties approved by the state and the province while another eight new combines are still under regional test.Its hybrids which have strong resistance to adversity,wide adaptability,and yield increase potential plays significant promotive role in the breeding and production of sorghum in spring sowing areas of China.