早熟玉米新品种龙辐玉20的选育及高产制种技术

Breeding of A New Early Maturing Maize Variety Longfuyu 20 and Its High Yield Seed Production Techniques

为促进早熟玉米新品种龙辐玉20的推广应用,本文简要介绍了其选育经过、产量表现、特征特性、栽培技术要点及高产制种技术。龙辐玉20是由黑龙江省农业科学院玉米研究所辐射育种室2014年组配的杂交组合选育而成,其母本是自交系辐23,父本是自交系辐99,该品种具有早熟、高产、优质、多抗等特点。2020年4月通过黑龙江省农作物品种审定委员会审定(审定编号:黑审玉2020L0023)。

In order to promote the popularization and application of a new earlymaturing maize variety Longfuyu20,this paper briefly introduced its breeding process,yield performance,characteristics,cultivation techniques and high-yield seed production techniques.Longfuyu 20 was bred from the hybrids combined by the Radiation Breeding?Department of Maize Research Institute of Heilongjiang Academy of Agricultural Sciences in 2014.Its female parent is the inbred line Fu 23,and its male parent is the inbred line Fu 99.This variety has the characteristics of early maturity,high yield,high quality and multi-resistances.In April 2020,it was approved by Heilongjiang Crop Variety Approval Committee(the approval number:Heishenyu 2020L0023).