采用空间诱变技术选育特早熟晚粳新品种航天36

利用返回式卫星搭载晚粳品种丙1067进行空间诱变处理,诱变后代结合抗性鉴定和糙米外观品质鉴定,育成优质特早熟晚粳新品种航天36。航天36在熟期、米质和抗病性上比原始对照品种丙1067有明显改良,耐迟播性强,从正常的单季播期可以一直持续到7月底,是理想的救灾备灾品种。2006年该品种通过浙江省品种审定委员会审定,适用于浙江省及长江中下游稻区。航天36的选育成功表明空间诱变为同步改良晚粳稻多个性状提供了新的有效途径。

BREEDING OF HANGTIAN 36-AN EARLY-MATURING VARIETY OF JAPONICA RICE BY SPACE MUTATION TECHNIQUE

Hangtian 36;an early-maturing late Japonica rice variety with high grain quality and disease resistance was developed from the mutagenesis progeny of Bing 1067 carried by the recoverable satellite.Hangtian 36 has advantages over the original variety Bing 1067 in mature duration,grain quality and blast resistance.It has strong tolerant ability to late sow,varying from sowing date of single cropping to the end of July.So it is an ideal variety suitable for the use of emergency situation,such as in the natural disaster year resulting from typhoon.This variety was officially registered by Zhejiang Committee on Variety Registration in 2006,and is adaptable in the region of Zhejiang province and the Yangtze River delta.The successful breeding of Hangtian 36 showed that space mutation is an effective method of simultaneous improvement for multiple traits of rice.