福建稻麦科技
福建稻麥科技
복건도맥과기
FUJIAN SCIENCE AND TECHNOLOGY OF RICE AND WHEAT
2014年
1期
1-5
,共5页
辐射诱变%杂交糯稻%不育系选育%嘉农wx2A
輻射誘變%雜交糯稻%不育繫選育%嘉農wx2A
복사유변%잡교나도%불육계선육%가농wx2A
radiation-induced mutation%waxy hybrid rice%development of CMS line%Jianongwx2A
用剂量为0.35kGy的60Co-γ射线辐照保持系粤丰B干种子约0.5kg，于M2带胚糙米群体获得糯质基因突变体，定名为嘉农wx2B。通过与粤丰A的杂交、回交，育成糯稻不育系嘉农wx2A。除直链淀粉含量差异显著外，嘉农wx2A与粤丰A生育期相同，且农艺性状、花器性状、穗部性状、花粉不育特性以及配合力均十分相似。嘉农wx2A于2008年10月通过福建省科学技术成果鉴定，由其配制的杂交糯稻嘉糯2优06（嘉农wx2A/嘉糯恢6号）具有高产、优质、适应性广等特点。
用劑量為0.35kGy的60Co-γ射線輻照保持繫粵豐B榦種子約0.5kg，于M2帶胚糙米群體穫得糯質基因突變體，定名為嘉農wx2B。通過與粵豐A的雜交、迴交，育成糯稻不育繫嘉農wx2A。除直鏈澱粉含量差異顯著外，嘉農wx2A與粵豐A生育期相同，且農藝性狀、花器性狀、穗部性狀、花粉不育特性以及配閤力均十分相似。嘉農wx2A于2008年10月通過福建省科學技術成果鑒定，由其配製的雜交糯稻嘉糯2優06（嘉農wx2A/嘉糯恢6號）具有高產、優質、適應性廣等特點。
용제량위0.35kGy적60Co-γ사선복조보지계월봉B간충자약0.5kg，우M2대배조미군체획득나질기인돌변체，정명위가농wx2B。통과여월봉A적잡교、회교，육성나도불육계가농wx2A。제직련정분함량차이현저외，가농wx2A여월봉A생육기상동，차농예성상、화기성상、수부성상、화분불육특성이급배합력균십분상사。가농wx2A우2008년10월통과복건성과학기술성과감정，유기배제적잡교나도가나2우06（가농wx2A/가나회6호）구유고산、우질、괄응성엄등특점。
Approximately 0.5 kilogram dry seed of maintainer line Yuefeng B were treated with γ-ray of 60Co at the dosage of 0.35kGy,waxy mutants of Jianongwx2B were obtained from M2 brown rice population with embryo,and Jianongwx2A was developed through Yuefeng A crossed and backcrossed with Jianongwx2B. Jianongwx2A and Yuefeng A had the same growth duration, the similar characteristics of agronomy,spikelet,panicle,fertility and combining ability,except for the amylase content(AC%) existed significant difference. Jianongwx2A was highly evaluated by Fujian Science and Technology Committee in October 2008. A waxy hybrid rice named Jianuo 2 you 06 derived from Jianongwx2A and restorer line Jianuohui 6 had characteristics of good grain quality,high yield and wide adaptability.
