为了进一步探讨基因型对烤烟营养元素吸收和利用的影响,筛选评价营养协调、质量较好的烤烟品种。采用品种对比试验,研究了延边烟区吉烟9号、NC89、中烟98、中烟100、云烟87、9407生长期间叶片中10种矿质元素含量的差异.结果表明,不同基因型烤烟对P素的吸收差异明显,其中以移栽后0 d时基因型间差异最大,70d时差异最小,各时期均以吉烟9号、云烟87含量最高,中烟100和NC89最低;不同基因型间K含量的差异在移栽后70～90 d未达到显著水平,Ca、Na、Zn在移栽后60～90d未达到显著水平;移栽后50d不同基因型Mg含量的差异最大,之后逐渐减小;B、Mn、Cu移栽后0～90d不同基因型间差异性较大,均以吉烟9号和9407含量最高.云烟87和吉烟9号在延边生态条件下,对矿质元素吸收能力较强,矿质营养协调,适宜推广种植.
Difference of 10 mineral elements in leaves of 6 flue-cured tobacco genotypes,including JiYan9,NC89,Zhongyan100,Zhongyan98,Yunyan87,9407,during growing period was studied by comparative test,in order to detected effect of absorbent and utilization to mineral nutrition and select nutrient coordination and had better quality to flue-cured tobacco.The results showed that:there was significant difference of P among genotypes in field growth phase,which was the largest at the 50 d and was the least at the 70 d after transplanting.Among all genotypes,Yunyan87 and Jiyan9 had the most accumulation amount to P,and NC89 and Zhongyan100 had the least;The content of Potassium in six genotypes unreached significant from 70 d to 90 d after transplanting,and Ca,Na,Zn unreached significant from 60 d to 90 d;There was largest difference of Mg content among genotypes at 50 d after transplanting,and then declines gradually;there was significant difference of B,Mn,Cu among six genotypes in 50-90 d after transplanting,and the concentration of which in the leaf of Jiyan9 and 9407 was large.Jiyan9 and Yunyan87 had better absorbent and coordination of mineral nutrition which was suitable planted in Yanbian area.
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