Drought stress is one of the most important environmental stresses which influences plant growth and development; and limits plant production. Mycorrhiza-inoculated plants often have greater tolerance to drought stress than non-mycorrhizal plants. In the present study, the effect of drought stress together with arbuscular mycorrhiza fungi (AMF) was investigated on agro-physio-chemical characteristics and oil compositions of sesame. Irrigation level (normal irrigation, mild drought stress, and severe drought stress), and mycorrhizal inoculation (Funneliformis mosseae, Rhizophagus intraradices, and non-inoculated plants) were included as treatments. Combined analysis of variance over 2 years of data revealed that the impact of irrigation and AMF was significant on mycorrhizal root colonization, non-enzymatic antioxidants, leaf phosphorus content, free amino acids and total soluble protein contents, oil yield and compositions, and plant seed yield. Mean comparisons indicated that with increasing severity of drought stress, mycorrhizal root colonization, seed yield, total chlorophyll, total soluble protein, oil yield and percentage, leaf phosphorus, total flavonoid and unsaturated fatty acids diminished. However, the amount of free amino acids, phenol, anthocyanin, carotenoids, saturated fatty acids and the ratio of saturated to unsaturated fatty acids rose significantly. Severe drought stress diminished the seed yield and unsaturated fatty acids levels by about 65 and 10 %, respectively, but it augmented free amino acids by about 65 %. Both AMF species inoculation treatments increased mycorrhizal root colonization, seed yield, oil yield and percentage, total soluble protein, leaf phosphorus, total chlorophyll, unsaturated fatty acids and all non-enzymatic antioxidants; however, they reduced saturated fatty acids and the ratio of saturated to unsaturated fatty acids significantly. Thus, for improving quantitative and qualitative traits of sesame, regardless of the drought stress level, AMF inoculation is recommendable.

干旱胁迫是影响植物生长发育的最重要的环境胁迫之一。并限制了工厂的生产。接种菌根的植物通常比非菌根的植物对干旱胁迫的耐受性更高。在本研究中，研究了干旱胁迫与丛枝菌根真菌（AMF）一起对芝麻的农业理化特性和油脂组成的影响。灌溉水平（正常灌溉，轻度干旱和重度干旱）和菌根接种（Funneliformis mosseae，Rhizophagus intraradices，和未接种的植物）作为治疗方法。结合2年数据的方差分析表明，灌溉和AMF对菌根根定殖，非酶抗氧化剂，叶磷含量，游离氨基酸和总可溶性蛋白含量，油产量和组成以及植物种子的影响显着。让。平均比较表明，随着干旱胁迫的加剧，菌根根定殖，种子产量，总叶绿素，总可溶性蛋白，油产量和百分比，叶磷，总黄酮和不饱和脂肪酸减少。但是，游离氨基酸，苯酚，花色苷，类胡萝卜素，饱和脂肪酸的数量以及饱和脂肪酸与不饱和脂肪酸的比例明显增加。严重的干旱胁迫分别使种子产量和不饱和脂肪酸含量降低约65％和10％，但使游离氨基酸含量增加约65％。两种AMF接种处理均增加了菌根根定殖，种子产量，油产量和百分比，总可溶性蛋白，叶磷，总叶绿素，不饱和脂肪酸和所有非酶抗氧化剂。然而，它们降低了饱和脂肪酸和饱和脂肪酸与不饱和脂肪酸的比例。因此，无论干旱胁迫水平如何，为了改善芝麻的数量和质量特征，建议使用AMF接种。油的产量和百分比，总可溶性蛋白，叶磷，总叶绿素，不饱和脂肪酸和所有非酶抗氧化剂；然而，它们降低了饱和脂肪酸和饱和脂肪酸与不饱和脂肪酸的比例。因此，为改善芝麻的数量和质量特征，无论干旱水平如何，建议接种AMF。油的产量和百分比，总可溶性蛋白，叶磷，总叶绿素，不饱和脂肪酸和所有非酶抗氧化剂；然而，它们降低了饱和脂肪酸和饱和脂肪酸与不饱和脂肪酸的比例。因此，无论干旱胁迫水平如何，为了改善芝麻的数量和质量特征，建议使用AMF接种。