中新A是以中浙A为母本,印32B/协青早B的F4代优良单株为父本,经测交和多代回交转育而成的中籼不育系。中新A于2006年通过浙江省科技成果鉴定,表现株型适中、柱头外露率高、开花习性好、配合力好。特别适宜与含粳稻成分较多的恢复系配组,组配的组合生育期明显短于协青早A所配组合,对解决籼粳亚种间杂交F1代生育期过长具有积极意义。 Zhongxin A is a middle-aged indica CMS line with Zhongzhe A as the female parent and F4 generation of the 32B / Xieqingzao B as the male parent. The new A in 2006 through the identification of scientific and technological achievements in Zhejiang Province, the performance of moderate plant type, stigma exposed rate, good flowering habits, with good. It is especially suitable for the combination of restorer lines with more components of japonica rice. The combination of the two combinations has a shorter developmental period than the combination of Xieqingzao A, which is of positive significance to the over-growth period of F1 generation between indica and japonica hybrids.