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Effects of Cycocel and Irrigation Regimes on Some Physiological Parameters of Three Olive Cultivars | Science Publications

机译:灌溉方式对三种橄榄品种某些生理参数的影响科学出版物

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> Problem statement: The water deficiency is one of the serious problems, in the arid zones. Cycocel by increasing the stomata resistance and decreasing transpiration can help to water use efficiency. Approach: In this research the impacts of different doses of Cycocel (0, 500 and 1000 mg L-1) and irrigation regimes (33, 66 and 100% of available water; referred to as I1, I2 and I3, respectively) on some physiological parameters of three olive cultivars (Baghmalek, Fishami and Dezfuli) were investigated. The experiment design was factorial split in completely randomize. Measured parameters included fresh and dry weight of root and stem, root length, leaf area, Relative Water Content (RWC), stomata resistance and ratio of total fresh and dry weight of shoot to root. Results: Results showed that drought stress decreased stem fresh weight from 24 g for well Irrigated (I1) compared to 17.5 g for drought stress treatment (I3). Fishami cultivar indicated highest fresh and dry of stem (28.15 and 16.52 g), leaf (12.97 and 9.44 g) and root (25.34 and 7.99 g respectively) compared to other two cultivars. Olive plants in I3 treatments had higher stomata resistance (46.05 sec cm-1) and lower RWC (54.92%). C3 treatment resulted in highest stomata resistance (28.18 and 42.81 sec cm-1 measured in the morning and at noon, respectively); the corresponding values for C1 treatment were 22.26 and 28.93 sec cm-1. Conclusion: Results suggested that I2 and cv. Fishami were superior compared to other irrigation treatments and cultivars. Cycocel adjusted drought neutralized negative effects of drought stress.
机译: > 问题陈述:在干旱地区,缺水是严重的问题之一。通过增加气孔阻力和减少蒸腾作用,可以提高水分利用效率。 方法:在本研究中,不同剂量的Cycocel(0、500和1000 mg L -1 )和灌溉方式(可用水的33%,66%和100%)的影响;分别称为Baghmalek,Fishami和Dezfuli三个橄榄品种的一些生理参数上的I 1 ,I 2 和I 3 )进行了调查。实验设计是完全随机化的因子分解。测得的参数包括根和茎的鲜重和干重,根长,叶面积,相对含水量(RWC),气孔阻力以及茎与根的总鲜重和干重之比。 结果:结果表明,干旱胁迫使井灌(I 1 )的茎鲜重从24 g降低,而干旱胁迫处理(I 3 < / sub>)。与其他两个品种相比,Fishami品种的茎(28.15和16.52 g),叶(12.97和9.44 g)和根(分别为25.34和7.99 g)的鲜干最高。 I 3 处理中的橄榄植物具有较高的气孔阻力(46.05 sec cm -1 )和较低的RWC(54.92%)。 C 3 处理导致最高的气孔阻力(早晨和中午分别测量为28.18和42.81 sec cm -1 ); C 1 处理的相应值为22.26和28.93 sec cm -1 。 结论:结果表明I 2 和简历。鱼ami优于其他灌溉处理和栽培品种。 Cycocel调整的干旱中和了干旱胁迫的负面影响。

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