【摘要】 以冈46B为母本、协青早B为父本杂交制保,育成的新不育系京福2A,集优质、大穗、抗病、理想株型于一体,是一个综合性状表现突出的早熟不育系,2002年7月通过福建省品种审定。应用灰色评判法对京福2A与恢复系配组的F1组合进行筛选,结果表明,京福2A/蜀恢881、京福2A/绵恢725和京福2A/CDR22为优良组合。更多还原

【Abstract】 Jingfu2A was developed from the cross Xieqingzao A/Jingfu2B by successive backcrossing to Jingfu2B, which had been derived from Gan46B/Xieqingzao B. It’s characteristics include high grain quality, high yield, ideotype. And It is early-CMS line that it is a piece of comprehensive properties to behave outstandingly.In July, 2002, it was registered in Fujian Province. According to the method of gray judgment, The F1 hybrid rice combinations of Jingfu2A were selected. The results showed that Jingfu2A/shuhui881, Jingfu2A/mianhui725 and Jingfu2A/CDR22 were excellent.更多还原