广适型水稻强恢复系华恢272的选育与应用

Breeding and application of strong restorer line Huahui 272 with wide adaptability

华恢272是湖南亚华种业科学研究院用"明恢63/Lemont"F6作母本与先恢207作父本杂交选育而成的优质水稻恢复系。株叶形态好,茎杆较粗,耐肥抗倒力强,分蘖力中等,穗大粒多,颖尖无色,恢复力强,配合力好,品质优良,中感稻瘟病,抗高温能力强,耐寒性好。所配组合产量高,米质优,适应性广,T优272、丰源优272和中优272先后通过了省级和国家品种审定,应用前景广阔。

Huahui 272,s restorer line with good grain quality,was bred from a cross of F6 （Minghui 63/Lemont）//Xianhui 207 by Yahua Seeds Institute of Hunan in China. Huahui 272 shows good plant type and has strong lodging resistance with big ,stem. Its filleting ability is middle, panicles are big with a large number of grains and glume tips are colorless.It also has strong restoring ability,good combining ability and high grain quality.Although Huahui 272 is moderately susceptible to rice blast,it shows strong tolerance to higher or lower temperature. The combinations from Huahui 272 usually have good grain quality,high grain yield and wide adaptability. Three cultivars bred from Huahui 272（T you 272,Fengyuan you272 and Zhong you 272）have been approved by provincial and National Crop Variety Approval Committee, respectively. Therefore,Huahui 272 should be considered as a good rice restorer line with wide applications in hybrid rice breeding.