摘要
通过溶液培养的方法,以京冬8号、临远7069为材料,研究了缺锰胁迫对不同小麦品种生长及生理生化指标的影响。结果表明,当供锰浓度为0.001 μmol/L时对两品种茎叶干重影响明显不同,京冬8号显著降低,而临远7069却显著升高;两品种在完全缺锰时的叶绿素含量均比低锰时显著升高;缺锰、低锰抑制了京冬8号NO3--N的吸收,但对临远7069无显著影响;缺锰胁迫对两品种的碳氮代谢影响各不相同,对临远7069的影响主要是抑制糖合成氨基酸的过程,对京冬8号的影响主要是抑制氨基酸合成蛋白质的过程。
In the method of water culture, the effects of Mn deficiency on indexes of physiology and biochemistry of two different genotypic wheat species, i. e. Jingdong 8 and Linyuan 7069, were studied. When the density of Mn is 0.001 μmol/L.the effect on the dry weight of stem and leave is significant; that is, dry weight of stem and leave of Jingdong 8 is decreased clearly whereas that of Linyuan 7069 is increased obviously. The content of chlorophyll is more when Mn is completely deficient than Mn is low. Mn deficiency significantly inhibits the absorbability of NO3-N for Jingdong 8, but it is not obvious for Linyuan 7069. It is different between the species that the effect of Mn deficiency on the metabolism of carbohydrate, ammo acid and protein. For Linyuan 7069, Mn deficiency mostly inhibits the synthesis of amino acid. However, for Jingdong 8, Mn deficiency mainly inhibits the synthesis of protein.
出处
《华北农学报》
CSCD
北大核心
2004年第2期53-56,共4页
Acta Agriculturae Boreali-Sinica
