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通过比较高秆稀植大穗玉米杂交种与中矮秆耐密玉米杂交种的产量、生育期、温、光反应、果穗、根、茎、叶、雄穗、抗逆性等性状差异,初步探讨了这些差异形成的原因。提出在今后的玉米育种工作中,适应性应放在首位,重视国内外玉米资源的搜集和整理,在注重“二环系”选育的同时,重视群体组建、群体改良及综合种的组建工作,并在栽培中应逐步增加种植密度。
By comparing the yield, growth period, temperature, light response, ear, root, stem, leaf, tassel, stress resistance and other traits of hybrids between high stalk and thin spike large ears and middle short stalk and tight maize hybrids, Discusses the reasons for these differences. It is suggested that in the future maize breeding, the adaptability should be given top priority and attention should be paid to the collection and arrangement of maize resources both at home and abroad. While focusing on the breeding of the “second ring system”, attention should be paid to the formation of groups, group improvement and the establishment of comprehensive species , And planting density should be gradually increased in cultivation.