旅大红骨种质在我国玉米育种中的利用潜力分析

摘要

Lvda red cob group inbred lines have made great contributions for maize production in China,with the adjustment of breeding objectives,rely on the longer growth period and plant type,big varieties into of how to enhance the yield stress resistance and adaptability,panicle dense planting resistant varieties become breed-ing direction.Lvda red cob group inbred lines with its larger plants,ripe period later,poor quality,dehydra-tion,the shortcomings such as slow gradually fade out the four core germplasm.The author believed that bri-gade bright Lvda red cob group inbred lines abundant germplasm resources has made great contribution for our country maize production.Although the germplasm has some shortcomings,but at the same time also has other taxa germplasm didnˊt has the outstanding advantages.Blindly ignored the brigade bright germplasm utilization is not desirable,only the most widely used germplasm base its shortcomings were improved to deal with all kinds of bad conditions on future production.%旅大红骨种质为我国玉米生产做出了巨大贡献，随着育种目标的调整，依靠延长生育期和单株大穗型品种提高单产的思路转变为强调抗逆性和适应性，中穗型耐密植品种成为育种方向，旅大红骨种质以其植株高大、熟期晚、米质差、脱水慢等缺点逐渐淡出四大核心种质。笔者认为，旅大红骨种质丰富了种质资源，曾为我国玉米生产做出过巨大贡献。虽然该种质具有一些缺点，但同时也具有其它类群种质所不具有的突出优点。盲目忽视对旅大红骨种质的利用是不可取的，只有采用最广泛的种质基础对其缺点进行改良才能应对未来生产上各种不良条件。