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通过营养液水培方式,探究了镉(Cd2+)对大蒜生长、光合特性、主要矿质元素吸收及品质的影响,同时研究了增施不同浓度钙(Ca2+)对镉胁迫大蒜的缓解效应。结果表明,镉胁迫处理可明显减小大蒜植株的形态指标,降低叶片色素含量、净光合速率、蒸腾速率及气孔导度,减少根中矿质元素含量并增加镉积累,降低蒜薹和鳞茎的外观品质及营养品质。增施钙可有效缓解镉对大
The effects of cadmium (Cd2 +) on the growth, photosynthetic characteristics, absorption and quality of main mineral elements in garlic were studied by hydroponic culture method. Meanwhile, the alleviating effects of different concentrations of calcium (Ca2 +) on garlic under cadmium stress were also studied. The results showed that cadmium treatment could significantly reduce the morphological indexes of garlic plants, reduce the pigment content, net photosynthetic rate, transpiration rate and stomatal conductance, reduce the content of mineral elements in roots and increase the accumulation of cadmium, reduce the appearance quality of garlic sprouts and bulbs And nutritional quality. Increased calcium can effectively alleviate the large cadmium