安徽林业科技
安徽林業科技
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ANHUI FORESTRY SCIENCE AND TECHNOLOGY
2013年
1期
12-14
,共3页
沙地云杉%Ca2+%干旱胁迫%抗旱生理指标
沙地雲杉%Ca2+%榦旱脅迫%抗旱生理指標
사지운삼%Ca2+%간한협박%항한생리지표
Picea mongolica%Ca2+%Drought stress%Drought resistance-related physiological index
以盆栽沙地云杉幼苗为试验材料,分别移入含有不同Ca2+浓度(0 mmol/L、5 mmol/L、10 mmol/L、20 mmol/L)和不同百分比的PEG-6000(0%、15%、30%)的植物培养液中处理6 h,研究水分胁迫下外源Ca2+对沙地云杉幼苗主要抗旱生理指标的影响,以期为Ca2+在沙地云杉耐旱生产中的应用提供参考依据.结果表明,外施Ca2+能够提高云杉幼苗叶片含水量和可溶性蛋白质的含量,减缓叶绿素的分解,降低MDA含量.4个梯度Ca2+浓度试验中,以10 mmol/L Ca2+浓度处理对提高云杉幼苗的抗旱性效果最佳.
以盆栽沙地雲杉幼苗為試驗材料,分彆移入含有不同Ca2+濃度(0 mmol/L、5 mmol/L、10 mmol/L、20 mmol/L)和不同百分比的PEG-6000(0%、15%、30%)的植物培養液中處理6 h,研究水分脅迫下外源Ca2+對沙地雲杉幼苗主要抗旱生理指標的影響,以期為Ca2+在沙地雲杉耐旱生產中的應用提供參攷依據.結果錶明,外施Ca2+能夠提高雲杉幼苗葉片含水量和可溶性蛋白質的含量,減緩葉綠素的分解,降低MDA含量.4箇梯度Ca2+濃度試驗中,以10 mmol/L Ca2+濃度處理對提高雲杉幼苗的抗旱性效果最佳.
이분재사지운삼유묘위시험재료,분별이입함유불동Ca2+농도(0 mmol/L、5 mmol/L、10 mmol/L、20 mmol/L)화불동백분비적PEG-6000(0%、15%、30%)적식물배양액중처리6 h,연구수분협박하외원Ca2+대사지운삼유묘주요항한생리지표적영향,이기위Ca2+재사지운삼내한생산중적응용제공삼고의거.결과표명,외시Ca2+능구제고운삼유묘협편함수량화가용성단백질적함량,감완협록소적분해,강저MDA함량.4개제도Ca2+농도시험중,이10 mmol/L Ca2+농도처리대제고운삼유묘적항한성효과최가.
Picea mongolica seedlings were used as test materials and soaked in the nutrient solutions with different Ca2+concentrations (0 mmol/L,5 mmol/L,10 mmol/L,20 mmol/L) and different percentages of PEG-6000 (0%、15%、30%) respectively for 6 h,to study the effects of Ca2+ on their main drought resistance-related physiological indexes and to provide reference for the application of Ca2+ in the production of Picea mongolica seedlings in dry sandy soil. The results indicated that Ca2+ could increase the leaf moisture content and soluble protein content,alleviate chlorophyll decomposition,and reduce MDA content. Among the 4 tested gradient concentrations,10 mmol/L Ca2+ had the best results.
