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首页> 外文会议>International Conference on Chemistry and Chemical Engineering >Effects of super absorbent polymer and plant growth promoting rhizobacteria (PGPR) on yield and oxidative damage of maize under drought stress
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Effects of super absorbent polymer and plant growth promoting rhizobacteria (PGPR) on yield and oxidative damage of maize under drought stress

机译：超强吸水性聚合物及植物生长促进流脉杆菌（PGPR）对干旱胁迫下玉米产量和氧化损伤的影响

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This study was carried out to study effects of super absorbent polymer and plant growth promoting rhizobacteria (PGPR) on yield and some physiological traits of maize (double cross 370) in Karaj region/Iran in 2009. Experiment was conducted as a randomized complete block design with 4 replicates and in two separate experiments under drought stress and normal conditions. Seven different treatments studied in this research, including: T1: Grain inoculation with biofertilizer (Azospirillum lipoferum+Pseudomonas putida). T_2: Applying super absorbent polymer as gel in rows, T_3: Apphing super absorbent polymer as powder in rows, T_4: Grain inoculation with biofertilizer (Azospirillum lipoferum +Pseudomonas putida) and applying super absorbent polymer as powder in rows, Grain inoculation with biofertilizer (Azospirillum lipoferum + Pseudomonas putida) and applying super absorbent poly mer as gel in rows, T_6: Mixing biofertilizer (Azospirillum lipoferum+Pseudomonas putida) with super absorbent polymer (as gel) and applying in rows and T_7: Non-application of super absorbent polymer and biofertilizer (control). Results indicated that drought stress decreased ear dry yield. Application of super absorbent polymer (powder or gel) and biofertilizer (Azospirillum lipoferum+Pseudomonas putida) increased ear dry yield in both stress and normal conditions. The highest content of oxidative damage biomarkers Malondialdehyde (MDA), dityrosine achieved in stress condition (T_7). Application of super absorbent polymer (treatments T_2 and T_3) in drought stress condition, decreased content oxidative damage biomarkers (MDA, dityrosine and dihydroxy-guanozine) that indicate the positive effect of this polymer in reducing drought stress effects. Application of biofertilizer alone (T_1) or with super absorbent (T_4, T_5, T_6), decreased the content of oxidative damage biomarkers in drought stress condition, but increased the amount of proline. It seems inoculated plants with increasing of proline scavenge produced free radicals under drought stress.
机译：本研究中进行超吸收聚合物与植物生长促进对产量的根际细菌（PGPR）和玉米的一些生理特性（双交叉370）在Karaj区域的研究效果/伊朗在2009年进行实验作为完全随机区组设计用4个重复和在干旱胁迫和正常条件下两个独立的实验。在这项研究中研究七种不同的治疗方法，包括：T1：粮食接种生物肥料（固氮螺菌lipoferum +恶臭假单胞菌）。 T_2：应用高吸水性聚合物作为行凝胶，T_3：Apphing超吸收性聚合物粉末中的行，T_4：用生物肥料粒接种生物肥料（固氮螺菌lipoferum +恶臭假单胞菌）和行施加高吸收性聚合物粉末，谷物接种（固氮螺菌lipoferum +恶臭假单胞菌）和施加超吸收聚聚体如行凝胶，T_6：混合生物肥料（固氮螺菌lipoferum +恶臭假单胞菌）与高吸收性聚合物（如凝胶）和以行和T_7施加：高吸水性聚合物的非应用和生物肥料（对照）。结果表明，在干旱胁迫降低耳干产量。超级吸收性聚合物（粉末或凝胶）和生物肥料（固氮螺菌lipoferum +恶臭假单胞菌）的应用在这两个压力和正常条件下增加的穗干燥产率。氧化损伤的生物标志物的含量最高丙二醛（MDA），在应力条件（T_7）实现dityrosine。的超级吸收性聚合物（治疗T_2和T_3）在干旱胁迫条件下应用，内容的氧化性损伤的生物标志物（MDA，dityrosine和二羟基 - guanozine），其指示该聚合物在减少干旱胁迫影响的积极效果降低。单独（T_1）或超吸收生物肥料中的应用（T_4，T_5，T_6），在干旱胁迫条件下的氧化性损伤的生物标志物的含量降低，但增加脯氨酸的量。这似乎接种植物对干旱胁迫下脯氨酸扫的增加所产生的自由基。

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