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首页> 外文期刊>African Journal of Biotechnology >Effects of water stress and seed mass on germination and antioxidative enzymes of Xanthoceras sorbifolia
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Effects of water stress and seed mass on germination and antioxidative enzymes of Xanthoceras sorbifolia

机译：水分胁迫和种子质量对黄果树发芽及抗氧化酶的影响

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The effects of water stress and seed mass on germination, as well as antioxidative enzymes, in?Xanthoceras sorbifolia?seed were studied. The germination percentage decreased gradually in all seeds with decreasing water potential. The reduction was more significant under -0.6 MPa treatment than under the -0.2 MPa treatment in all seeds. The germination percentage of the big seeds was the highest in all treatments and had the earliest initiated germination compared with those of the medium and small seeds. Lipid peroxidation (malondialdehyde), osmotic substances (free proline), and antioxidative enzymes (peroxidase, superoxide dismutase, and catalase) increased in all seeds with increasing water stress. The values of all parameters indicated that water was a critical factor in?X. sorbifolia?seed germination, and the big seeds displayed increased tolerance to water stress as measured by germination percentage, osmoregulatory substance, and antioxidant enzymatic activities.
机译：研究了水分胁迫和种子质量对黄果油菜种子发芽以及抗氧化酶的影响。随着水势的降低，所有种子的发芽率逐渐降低。在所有种子中，-0.6 MPa处理下的减少比-0.2 MPa处理下的减少更为显着。在所有处理中，大种子的发芽率最高，与中小种子相比，发芽率最早。随着水分胁迫的增加，所有种子的脂质过氧化（丙二醛），渗透物质（游离脯氨酸）和抗氧化酶（过氧化物酶，超氧化物歧化酶和过氧化氢酶）均增加。所有参数的值表明水是ΔX的关键因素。山梨种子发芽，大种子对发芽率，渗透压调节物质和抗氧化酶活性的测定显示出对水分胁迫的耐受性增强。

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