CAJ | 학술논문

玉米育种是了解生产需求并创造性地满足生产需求的过程。特定种植模式以及特定栽培密度对玉米品种的需求存在差异。该项研究以1996-2012年四川省区域试验杂交组合为材料，研究不同时期杂交组合的生育期变化和穗行数变异。其中生育期随着育种时期的推进在不断减少，但均高于100d；穗行数则呈现分阶段增加或减少的变化，表现为1995-2005年增加而2005-2012年减少的变化趋势。这一研究结果体现了立体种质模式下的玉米品种更替，同时也揭示了增加单位面积种植密度在我国西南地区玉米高产中的意义。
옥미육충시료해생산수구병창조성지만족생산수구적과정。특정충식모식이급특정재배밀도대옥미품충적수구존재차이。해항연구이1996-2012년사천성구역시험잡교조합위재료，연구불동시기잡교조합적생육기변화화수행수변이。기중생육기수착육충시기적추진재불단감소，단균고우100d；수행수칙정현분계단증가혹감소적변화，표현위1995-2005년증가이2005-2012년감소적변화추세。저일연구결과체현료입체충질모식하적옥미품충경체，동시야게시료증가단위면적충식밀도재아국서남지구옥미고산중적의의。
Maize breeding process is asking and satisfying the needing of society. To investigate the differences of maize varieties under different cultivated systems,grow days and ear number of hybrids made among 1996-2012 were analyzed. Results showed that grow days were decreased during maize breeding process. Ear number showed increased among 1996-2005 and decreased among 2005-2012,respectively. This results suggested that in-terval cultivated system and increasing cultivated density of maize would be popular in the future of maize pro-duction.