鋅對小麥種子萌發(fā)及幼苗生長的影響
中圖分類號 S512.1 文獻標識碼A 文章編號 1007-7731（2025）09-0024-07
DOI號 10.16377/j.cnki.issn1007-7731.2025.09.006
AbstractTo investigate the effects zinc Z n on seed germination growth wheat，two cultivars，Shangmai 5226 Xiaoyan 15，were selected as experimental materials.6 Zn concentration gradients （ZnSO 0，50，100，200， 400， 8 0 0 m g / L ）were set，with 0 m g / L as the control （CK）. The germination indicators，growth indicators physiological indicators each group were measured.The resultsshowed that in terms germination parameters，as Znconcentration increased，thegermination potential germinationrateboth wheatcultivars first increased then decreased; at 10 mg/L Zn，Shangmai 5226 Xiaoyan 15 exhibited higher germinationrates germination potentials.Regardinggrowth indicators，with increasing Znconcentration，shoot length，shootfresh weight， shoot dry weightboth cultivars initiallyincreasedthendecreased，whereasrotlength，rootfreshweight，rootdry weightgraduallydeclined.Forphysiological indices，asZnconcentrationincreased，chlorophyllcontent，soluble protein content，soluble sugar content，superoxide dismutase （SOD）activity， catalase （CAT）activity in both wheat cultivars showed a trend increasing first then decreasing.In contrast，peroxidase （POD）activity malondialdehyde（MDA）content progressivelyincreased，whilefree prolinecontentfirstdecreasedtheninceased. In conclusion， Zn concentrations 5 0 -1 0 0 m g / L were conducive to the seed germination seeding growth Shangmai 5226 Xiaoyan 15; Zn concentration exceeding hadacertain inhibitory effect onwheat seed germination.
Keywords zinc; wheat; germination parameters; growth indicators; physiological indices
小麥作為重要的糧食作物之一，其栽培水平與產(chǎn)量直接影響區(qū)域糧食生產(chǎn)格局與總產(chǎn)穩(wěn)定性[1-2]。（剩余9654字）