PDF(Pubmed)
Abstract：
BACKGROUND: Due to the important economic role of pistachio (Pistacia vera L.) the cultivation of this valuable crop has been extended. Various abiotic stresses harm the growth and performance of pistachio. Seaweed extract containing various substances such as pseudo-hormones that stimulate growth, nutritional elements, and anti-stress substances can cause more resistance to abiotic stresses, and increase the quantity and the quality of the fruit. The present study was conducted to evaluate the effect of foliar application of Ascophyllum nodosum (L.) Le Jol. seaweed extract on some biochemical traits related to abiotic stress in Pistacia vera L. cv. Kaleh-Ghoochi. The first factor of foliar spraying treatment included A. nodosum seaweed extract at four levels (0, 1, 2, and 3 g/L), and the second factor was the time of spraying solution which was done at three times (1- at the beginning of pistachio kernel growth period at the end of June, 2- at the stage of full kernel development at the end of August, and 3- Spraying in both late June and August).
RESULTS: The results showed that all investigated traits were significant under the treatment of seaweed extract compared with the control. The seaweed extract concentrations had a significant effect on all traits except soluble carbohydrates, but the time of consumption of seaweed extract on soluble carbohydrates, protein, peroxidase, ascorbate peroxidase, and superoxide dismutase enzymes was significant, while had no significant effect on the rest of the traits. According to the interaction effect of time and concentration of consumption of seaweed extract, the highest values of the biochemical characters were as follows: total phenol content: 168.30 mg CAE/g DW, flavonoid content: mg CE/g DW, catalase: 12.66 µmol APX min- 1 mg- 1 protein, superoxide dismutase: 231.4 µmol APX min- 1 mg- 1 protein, and ascorbate peroxidase: 39.53 µmol APX min- 1 mg- 1 protein.
CONCLUSIONS: Based on the results of this study, it seems that it is possible to use fertilizers containing A. nodosum seaweed extract with a concentration of 3 g/L in August to increase the tolerance of the pistachio cultivar \"Kaleh-Ghoochi\" to abiotic stresses.
RESULTS: The results showed that all investigated traits were significant under the treatment of seaweed extract compared with the control. The seaweed extract concentrations had a significant effect on all traits except soluble carbohydrates, but the time of consumption of seaweed extract on soluble carbohydrates, protein, peroxidase, ascorbate peroxidase, and superoxide dismutase enzymes was significant, while had no significant effect on the rest of the traits. According to the interaction effect of time and concentration of consumption of seaweed extract, the highest values of the biochemical characters were as follows: total phenol content: 168.30 mg CAE/g DW, flavonoid content: mg CE/g DW, catalase: 12.66 µmol APX min- 1 mg- 1 protein, superoxide dismutase: 231.4 µmol APX min- 1 mg- 1 protein, and ascorbate peroxidase: 39.53 µmol APX min- 1 mg- 1 protein.
CONCLUSIONS: Based on the results of this study, it seems that it is possible to use fertilizers containing A. nodosum seaweed extract with a concentration of 3 g/L in August to increase the tolerance of the pistachio cultivar \"Kaleh-Ghoochi\" to abiotic stresses.
摘要：
背景：由于开心果（PistaciaveraL.）的重要经济作用，这种有价值的作物的种植得到了扩展。各种非生物胁迫危害开心果的生长和性能。海藻提取物含有各种物质，如假激素，刺激生长，营养元素,抗应激物质可以对非生物胁迫产生更大的抵抗力，增加水果的数量和质量。进行本研究是为了评估叶面施用夜蛾的效果（L.)勒约尔。海藻提取物对黄连木非生物胁迫相关生化性状的影响。Kaleh-Ghoochi.叶面喷施处理的第一个因素包括4个水平(0、1、2和3g/L)的异叶海藻提取物，第二个因素是喷施溶液的时间，喷施溶液的时间是三次(1-在6月底开心果仁生长期开始时，2-在8月底的完整内核开发阶段，和3-在6月下旬和8月喷洒)。
结果：结果表明，与对照相比，在海藻提取物的处理下，所有研究的性状均显着。海藻提取物浓度对除可溶性碳水化合物外的所有性状都有显著影响，但是海藻提取物在可溶性碳水化合物上的消耗时间，蛋白质，过氧化物酶,抗坏血酸过氧化物酶，超氧化物歧化酶是显著的，而对其余性状无显著影响。根据海藻提取物消耗时间和浓度的交互作用,生化性状的最高值如下:总酚含量:168.30mgCAE/gDW,类黄酮含量：mgCE/gDW，过氧化氢酶：12.66μmolAPXmin-1mg-1蛋白，超氧化物歧化酶：231.4µmolAPXmin-1mg-1蛋白，和抗坏血酸过氧化物酶：39.53μmolAPXmin-1mg-1蛋白。
结论：根据本研究的结果，似乎有可能在8月份使用含有3g/L浓度的结节性海藻提取物的肥料，以增加开心果品种“Kaleh-Ghoochi”对非生物胁迫的耐受性。
结果：结果表明，与对照相比，在海藻提取物的处理下，所有研究的性状均显着。海藻提取物浓度对除可溶性碳水化合物外的所有性状都有显著影响，但是海藻提取物在可溶性碳水化合物上的消耗时间，蛋白质，过氧化物酶,抗坏血酸过氧化物酶，超氧化物歧化酶是显著的，而对其余性状无显著影响。根据海藻提取物消耗时间和浓度的交互作用,生化性状的最高值如下:总酚含量:168.30mgCAE/gDW,类黄酮含量：mgCE/gDW，过氧化氢酶：12.66μmolAPXmin-1mg-1蛋白，超氧化物歧化酶：231.4µmolAPXmin-1mg-1蛋白，和抗坏血酸过氧化物酶：39.53μmolAPXmin-1mg-1蛋白。
结论：根据本研究的结果，似乎有可能在8月份使用含有3g/L浓度的结节性海藻提取物的肥料，以增加开心果品种“Kaleh-Ghoochi”对非生物胁迫的耐受性。
