石英砂培养方式下铁元素对玉米幼苗生长发育的影响研究  

Effect of Iron on the Growth and Development of Maize Seedlings under Quartz sand Culture

作　　者：王玉城 彭丽敏 李依萌 Wang Yucheng;Peng Limin;Li Yimeng(Hebei Agricultural University,Baoding 071000,Hebei,China)

机构地区：[1]河北农业大学,河北保定071000

出　　处：《农业技术与装备》2024年第9期202-204,共3页Agricultural Technology & Equipment

摘　　要：用石英砂培养的方法研究铁元素对玉米幼苗生长发育状况的影响,通过测定玉米幼苗地上部质量、地下部质量、总质量、株高、根长、根系条数、叶面积和根冠比等生理指标,探讨缺铁条件下对玉米幼苗生长发育的影响。结果表明:缺铁会导致玉米幼苗株高、总质量、根系长度和根冠比等均下降,但叶片叶面积却大于供铁条件下的幼苗叶面积;缺铁会导致玉米幼苗叶片出现黄化现象,但只是个别植株出现,现象不显著;铁营养对玉米幼苗的生长发育有一定的促进作用,但现象不显著。The effect of iron on the growth and development of maize seedlings was studied by using quartz sand culture method.Physiological indexes such as above ground mass,underground mass,total mass,plant height,root length,number of root strips,leaf area and root-shoot ratio of maize seedlings were measured to explore the effect of iron deficiency on the growth and development of maize seedlings.The results showed that the height,total weight,root length and root shoot ratio of maize seedlings decreased due to iron deficiency,but the leaf area of maize seedlings was larger than that under iron supply condition.Iron deficiency could lead to yellowing of maize seedling leaves,but only in individual plants,the phenomenon was not significant.Iron nutrition can promote the growth and development of maize seedlings,but the phenomenon is not significant.

关 键 词：玉米 石英砂培养 铁营养 

分 类 号：S513[农业科学—作物学]