摘要
针对贵州生态条件的复杂性、栽培技术的多样性,着重分析了不同生态区与之相适应的品种群的特征特性,表明不同生态区与之相适应的品种的生长发育状况首先决定于生态环境,其次是基因型和基因型与生态环境的互作,品种的性状表现与不同生态区影响生长发育的生态因子相吻合。把贵州品种划分成4种不同的品种生态型。提出不同生态型品种自交系选育与改良的目标、存在的主要问题及改良的途径。
Aiming at the complexity of Guizhou ecologic condition, social economy and planting technology, characteristics of maize varieties which adapted to the different ecologic region were studied. Based on this, the study indicated that the growth of different maize varieties is influenced firstly by environment, secondly the genotype and environment between gene and environment, the appearance of varieties is in accordance with ecologic factors which influence maize growth. At this article, maize varieties of Guizhou were classified into 4 sorts according to the ecotype, at the same time, the aim, the method and pertinent questions of breeding and improving of different ecotype inbred line were disscussed.
出处
《山地农业生物学报》
2003年第6期488-492,共5页
Journal of Mountain Agriculture and Biology
关键词
玉米
品种生态型
类型划分
自交系
选育
改良
maize
variety ecotype
variety class
inbred line
breeding and improving
