طیب ساکی نژاد Articles List

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1 - The Effect of Foliar Application of Gibberellin and Kinetin Hormones on Morphological, Biochemical and Functional Characteristics of Maize (Zea mays L.) Hybrids
Aghil Aalipour Tayeb Saki Nejad Shahram Lak Alireza Shokuhfar Mojtaba Alavifazel
10.30495/JCEP.2023.1913609.1728

In agronomic management of corn, in addition to providing suitable hybrid seeds, other factors such as plant hormones are also important. Therefore, this study was conducted to investigate the effect of hybrid seed type and leaf application of gibberellin and kinetin ho More

In agronomic management of corn, in addition to providing suitable hybrid seeds, other factors such as plant hormones are also important. Therefore, this study was conducted to investigate the effect of hybrid seed type and leaf application of gibberellin and kinetin hormones on growth, biochemical and yield indices of corn in Ahvaz. The basic design of randomized complete blocks was done as a split plot in two cropping years with four replications. Single-grain corn hybrids 704 (late ripening), 616 (medium ripening) and 71AS (medium ripening) were studied as the main factor and kinetin/gibberellin foliar application at three levels of 0, 150/200 and 300/400 ppm as the secondary factor. The results showed that the simple effect of hybrid type and kinetin/gibberellin foliar application on plant height, stem diameter, shoot dry weight, 1000-seed weight, biological yield, grain yield, harvest index, chlorophylls a, b and total and the percentage of grain protein was statistically significant. Also, the effect of kinetin/gibberellin foliar application × hybrids on plant height, stem diameter, shoot dry weight, 1000-seed weight, biological yield, grain yield, harvest index, chlorophylls a, b and total and hybrid interaction in kinetin/gibberellin foliar application had a statistically significant effect on leaf area index per year. The results showed that the highest values of the studied traits in both cropping years were obtained in single cross 704 maize and after kinetin/gibberellin foliar application at 150-200 ppm. The kinetin/gibberellin ratio of 150/200 ppm in all hybrids had a better effect on various morphological and biochemical traits. The highest biological yield, grain yield and harvest index, which are very important traits, were related to single-cross corn hybrid with hormone foliar application at the rate of 150/200 ppm. According to the obtained results, the use of single-cross corn hybrid of corn and foliar application of maize plants with gibberellin and quinine in the ratio of 150/200 ppm is recommended. Manuscript profile
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2 - The Effect of Biochar and Humic Acid Rates on some Phophysiological Characteristics and Grain Yield SC704 Corn (Zea mays L.) Hybrid Under Water Deficit stress
Armaghan Charkhab Many Mojaddam Shahram Lack Tayyeb Sakinejad Mohammad Reza Dadnia
10.30495/jcep.2021.683381

To evaluate the effect of different rates of biochar and humic acid applications on physiological characteristics and grain yield of single cross 704 hybrid corn under water deficit stress, a split split plot experiment based on a randomized complete block design with t More

To evaluate the effect of different rates of biochar and humic acid applications on physiological characteristics and grain yield of single cross 704 hybrid corn under water deficit stress, a split split plot experiment based on a randomized complete block design with three replications, was conducted during two years (2017-19) at Ahvaz. The main plot devoted to water deficit stress, with three levels irrigation (after depleting 30, 40, and 50% of field capacity as optimum irrigation, moderate stress, and severe stress, respectively) and sub-plot to biochar with 2 levels, non-application of biochar (control) and application of 4 tons per hectare of biochar, and the sub-sub plots to humic acid with 4 levels non-application of humic acid (control), and application of 2, 4, and 6 liters per hectare of humic acid. The results showed that the interaction effect of water shortage by biochar stress and water shortage by humic acid stress on grain yield, 1000-grain weight, number of grains per ear, superoxide dismutase, chlorophyll index and catalase were significant at 1% probability level. Under severe stress conditions grain yield (36.54%), number of grain per ear (36%) and leaf area index (30.36%) decreased and activity of superoxide dismutase (37.7%) increased. Acidic acid had a significant effect on all traits under study. The highest grain yield (8995.18 kg.ha-1) was related to irrigation treatment after 40% depletion of field capacity and application of 4 tons per hectare of biochar. Based the results obtained application of 4 liters per hectare of humic acid under moderate moisture stress conditions, could be recommended in arid and semi-arid conditions to save water consumption and reduce the effects of water deficit stress. Manuscript profile
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3 - Effect of Foliar Application of Magnesium and Potassium Sulfate on Morphological, Biochemical and Yield Characteristics of Maize (Zea mays L.) During Water Deficiet Stress
Arman Sotoodeh Tayeb Saki Nejad Alireza Shokuhfar Shahram Lak Mani Majaddam

Drought stress is one of the most important factors that limiting the growth and yield of plants. In recent years the use of various methods to reduce its negative effects has been considered by many researchers. This experiment was performed as a split plot in the form More

Drought stress is one of the most important factors that limiting the growth and yield of plants. In recent years the use of various methods to reduce its negative effects has been considered by many researchers. This experiment was performed as a split plot in the form of randomized complete blocks with four replications in two years. The effect of foliar application of different ratios of magnesium and potassium on the morphological, biochemical and functional characteristics of maize (single cross cultivar 704) in different irrigation cycles (50, 75 and 100 mm evaporation from Class A evaporation pan) was evaluated. The results of analysis of variance showed that the interaction of irrigation and magnesium to potassium ratio on the characteristics of height, stem diameter, ear length, number of seeds per ear, potassium uptake, magnesium uptake, chlorophyll a, chlorophyll b, total chlorophyll, Carotenoids, proline, biological yield, grain yield and harvest index had a statistically significant effect. The results of the study of the effect of potassium and magnesium on morphological and biochemical changes in drought tolerance in maize (Single Cross 704 cultivar) showed that consumption of these elements significantly increased plant height, stem diameter, ear length, number of seeds per ear, uptake rate Potassium, magnesium uptake, chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, proline, biological yield, grain yield and harvest index in water deficit conditions; So that the highest value of these traits in evapotranspiration conditions was 50 mm from the evapotranspiration pan and application of 200 kg of magnesium sulfate/ 300 kg of potassium sulfate. Also, foliar application of different concentrations of potassium sulfate and magnesium sulfate by increasing the uptake of potassium and magnesium, preserving leaf chlorophyll, resulting in more effective photosynthesis as well as increasing the concentration of proline in plant leaves, moderate the negative effects of water deficiency and corn tolerance to conditions. Improve water shortage. Manuscript profile

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List of Articles طیب ساکی نژاد