不同种类Ni^(2+)盐浸种对作物种子活力的影响

Effects of Seed Soaking with Different Kinds of Ni^(2+) Salt on the Seed Vigor of Crop

[目的]为镍肥的进一步开发利用提供基础理论依据。[方法]以春小麦和樱桃番茄为试材,选取均匀一致、饱满的50~100 g种子,分别置于不同浓度、不同种类的Ni2+盐溶液中浸种6~12 h,研究了3种Ni2+盐(氯化镍、硝酸镍、硫酸镍)浸种对作物种子活力的影响。[结果]适量浓度的Ni2+盐浸种可以促进两种作物种子萌发,促进根系和芽生长,幼苗干物质积累增加。春小麦浸种适宜浓度范围为0~2μmol/L,且因Ni2+盐种类而异;樱桃番茄浸种适宜浓度均为0.5μmol/L,其作用效应大小因Ni2+盐种类和作物品种而异。[结论]相同浓度条件下不同Ni2+盐所产生的生物效应差异可能与Ni2+盐中阴阳离子的加和作用有关。

[Objective] The aim of the research was to provide basic theoretical basis for further development and utilization of Ni fertilizer, [Method] With spring wheat and cherry tomato as the tested materials, 50 - 100 g homogeneous and plump seeds were selected and placed in Ni^2＋ salt solution with different eonen, and species for soaking for 6 - 12 h. The effects of seed soaking with 3 kinds of Ni^2＋ salt （NiCl2, Ni（NO3）2, NiSO4） on the seed vigor of crop were studied, [Result] Seed soaking with Ni^2＋ salt at suitable concn, could promote the germination of 2 kinds of crops, promote the growth of root system and buds and increase dry matter accumulation in the seedlings. The suitable eoncn, for seed soaking of spring wheat was 0 - 2 μmol/L, which was different with the species of Ni^2＋ salt. The suitable cohen, for seed soaking of cherry tomato was 0.5 μmol/L and its action effect was different with the kinds of Ni^2＋ salt and crop variety. [ Conclusion] Under the same cohen, conditions, the biological effect difference produced from different Ni^2＋ salt was possibly related with the additive effect of anion and cation in Ni^2 ＋ salt.