杂交节水抗旱稻新组合旱优113号的选育与应用

目的]培育杂交节水抗旱稻,为水稻的高产、稳产提供品种选择.方法]利用节水抗旱不育系沪旱11A与抗旱恢复系旱恢3号进行配组选育获得旱优113号,2007年在广西、上海进行多点品比试验,并进行稻瘟病、白叶枯病及抗旱性鉴定;2010～2011年在广西、四川、湖北、上海等地不同生态区域进行示范试验,2010～2011年参加上海节水抗旱稻生产试验.结果]旱优113号熟期适宜,株叶型适中,分蘖力中等,根系发达,茎秆粗壮;后期青秆黄熟,转色极好;有效穗270.0万/ha,每穗粒数162粒,结实率85.0％,千粒重28.0g.旱优113号在广西早稻种植,中感稻瘟病和白叶枯病;抗旱系数为1.27,抗旱性为3级,属于抗旱.2010年在广西南宁和岑溪两地作早稻种植,产量分别为7653.00和8293.50kg/ha,比特优63（CK）分别增产4.69％和5.71％;2011年在南宁扩大示范种植,产量为8361.00 kg/ha,比特优63（CK）增产7.04％.2012年参加广西早稻区域试验,平均产量7749.00kg/ha,比特优63（CK）增产6.32％.20 1 1年分别在湖北、四川等地种植,产量分别为9513.00、8196.00和6790.50kg/ha,2010～2011年参加上海节水抗旱稻生产试验,平均产量9222.15 kg/ha,比对照旱优3号平均增产4.51％.2012年4月通过上海市农作物品种审定委员会审定.结论]旱优1 13号具有丰产性好、适应性广、节水抗旱、高产优质、便于轻型栽培等特点,可在长江流域作中稻和华南大部分地区作早稻种植.

Breeding and application of a new water-saving and drought-resistance hybrid rice variety Hanyou 113

Objective]Breeding water-saving and drought-resistant hybrid rice variety was conducted to provide varieties selection for rice with high and stable yield.Method]Hanyou 113,a new combination from Huhan 11 A crossed with restorer line Hanhui 3 was produced and tested for its resistance against rice blast,bacterial blight,and drought in Guangxi,Sichuan,Hubei and Shanghai.In 2010-2011,Hanyou 113 was involved in Shanghai water-saving and drought-resistant rice experiment.Result]Hanyou 113 had the characteristics of appropriate maturity,moderate plant tyre,moderate tillering ability,strong root system,and stout stems.In late stage,its green stalk turned satisfactorily yellow.The effective ear was 270.0 ten thousand/ha.The seed setting rate was 85.0％ with 1000-grain-weight of 28.0 g.Hanyou 113,planted in Guangxi as early rice,was moderately susceptible to rice blast and bacterial blight and drought resistant coefficient of 1.27 （drought resistant grade：Ⅲ）.The yield of Hanyou 113,planted in Nanning and Cenxi as early rice,was 7653.00 and 8293.50 kg/ha reyional trial of early rice in extended in extended planting,increased by 4.69％ and 5.71％ compared to Teyou 63 （CK）.In 2011,Hanyou 113 snowed yield of 8361.00 kg/ha,increased by 7.04％ compared to Teyou 63 （CK）.In the 2012 Guangxi reyional trial of early rice in extended in extended planting,its average yield was 7749.00 kg/ha,increased by 6.32％ compared to Teyou 63 （CK）.In 2011,the yield in Sichuan,Hubei and other places was 9513.00,8196.00 and 6790.50 kg/ha.In the 2010-2011,Shanghai water-saving and drought-resistant rice production experiment,its average yield was 9222.15 kg/ha,increased by 4.51％ compared to Hanvou 3 （CK）.Hanyou 113 was certified and registrated by Shanghai Committee for Crop Variety Registration in April,2012.Conclusion]Hanyou 113,due to its traits of water-saving,drought resistance,high-yield,good quality,convenient cuhivation and wide adaptability,could be promoted as an early rice cultivar in most regions of South China and as a semilate rice cultivar in Yangtze valley.