Papers by Hayder Sadaq Jaafar
Alinteri Journal of Agriculture Sciences
Current study was carried out in the Department of Horticulture and Forestry, Directorate General... more Current study was carried out in the Department of Horticulture and Forestry, Directorate General for Agriculture in Najaf province, during 2021 spring season to determine the response of growth and yield of (Capsicum annuum L.) to the spraying with nano-amino acids and potassium silicate. 12 treatments including four concentrations of nano-amino acids as a foliar feed (0.0, 0.5, 1.0 and 1.5ml.L-1) and three concentrations of potassium silicate (0, 2 and 4ml.L-1) were applied by spraying these concentrations of the vegetative growth of sweet pepper cv. California Wonder. A factorial experiment was arranged using randomized complete blocks design (RCBD) with three replicates and the ANOVA analysis was done using least significant difference test (L.S.D.) at 5% level of significance (P>0.05). Results showed that treatment of spraying 1.5ml.L-1 of Nano amino acids was exceled other treatment of foliar spraying in all studied traits, and gave the highest average of growth, yield incl...
The experiment was carried out in a private field in the Najaf Governorate, Kufa District for the... more The experiment was carried out in a private field in the Najaf Governorate, Kufa District for the 2019 growing season to study the response of two okra Abelmoschus esculentus L. Moench cultivars, Hussainawiya the local and Clemson from Turkeya newly adopted cultivar, to foliar spray with amino acids (AA) at 0, 2 or 4 ml.L-1 and to evaluate the effect of AA on plant quantitative and qualitative. The plants were sprayed twice during the growing season, at 45 and 60 days post planting. The experiment was developed as a split-plot with three replicates based on Randomized Complete Blocks Design (R.C.B.D.). Okra cultivars were placed in the main-plots and the AA concentrations were in the sub-plots. Plant quantitative parameters and qualitative characters including number of pod.plant-1, pod weight, total yield, and percentage of mineral element N in fruits, percentage of protein and percentage of carbohydrates in fruits were compared among treatments and cultivars according to the least...
This study was conducted during 2019 season in Fadak farm, Najaf province, Iraq to determine the ... more This study was conducted during 2019 season in Fadak farm, Najaf province, Iraq to determine the effect of phosphate fertilization and foliar spraying with potassium humate on the growth and yield indicators of Cucurbita pepo L. plant (c.v Fadwa). Randomized complete blocks design (RCBD) was used in a factorial experiment with two main factors and three replicates. The first factor was adding phosphorous in a three different levels (0, 100 and 200kg P2O2.h -1) and the second factor was sprayings potassium humate in a three different concentrations (0, 5 and 10 ml.L-1). Means were compared using least significant difference test (L.S.D.) at 0.05. Results showed that treatment of 200kg of phosphate fertilization was exceled other treatments in vegetative and quantitative traits and recorded 139.89cm of plant length, leaves number (23.23 leave.plant1), leave area (572.00 cm2.leave-1), dry weight of total vegetative (139.88 g.plant-1), fruit length (24.22cm), the number of fruits in eac...
articles by Hayder Sadaq Jaafar
Evaluation of Eggplant via Different Drip Irrigation Intervals and Foliar Sprays with Seaweed Extract Biostimulant, 2020
Irrigation plays a crucial role in supporting plant growth either for vegetative or productive st... more Irrigation plays a crucial role in supporting plant growth either for vegetative or productive stage. Recent trends devoted to exploit natural biostimulants as an alternative to synthetic chemical fertilizers. In this research, we attempt to connect these two perspectives in order to ameliorate the dynamics of eggplant yield. A field trial was performed during the 2018-2019 growing season in a private open field located in Al-Abbasiyah district, Najaf governorate, Iraq. The aim was to assess the vegetative and yield indicators of Barcelona eggplant Solanum melongena L. hybrid influenced via different drip irrigation intervals and foliar sprays with seaweed extract. The treatments comprised three irrigation intervals (daily, two days, and three days) and three spray concentrations of seaweed extract (0 as a control, 2, and 4) ml.L-1. All treatments were triplicated according to spilt plot experiment in Randomized complete block design where irrigation intervals were assigned in the main plots and spray applications were assigned in the subplots. The findings exhibited that daily drip irrigation improved the vegetative growth parameters [plant height (cm), stem diameter (cm), number of main branches per plant, number of leaves per plant, and total chlorophyll concentration in leaves (mg.100 g-1 fresh weight)] as well as crop yield parameters [number of fruits per plant, yield per plant (kg.plant-1), early yield (ton.ha-1), and total yield (ton.ha-1)]. Further, spray of seaweed extract biostimulant at a concentration of 4 ml.L-1 realized the highest mean of vegetative and yield parameters compared to the control treatment. Moreover, the combination of daily irrigation interval with seaweed extract spraying at 4 ml.L-1 provided the highest mean of all studied traits compared to the interaction treatment of three-day irrigation interval without seaweed extract spray (control).
SABRAO Journal of Breeding and Genetics, 2022
The latest study aimed to assess the response of the broad bean to the magnetically-treated irrig... more The latest study aimed to assess the response of the broad bean to the magnetically-treated irrigation water and foliar application of nano-seaweed extract for growth and productivity traits. This experiment took place during the growing season of 2020-2021 under field conditions at Al-Najaf Governorate, Iraq. Turkish broad bean cultivar 'Luz-de-otono' was grown in a split-plot design by two factors with three replicates. The main plots received magnetized irrigation water with three diverse intensities (zero, 1000, and 2000 Gauss), while the nano-seaweed extract with three concentrations (0, 1, and 2 ml.L-1) in the subplots. On average, the magnetization treatment at 2000 Gauss attained significant improvement in the growth and morphological traits (plant height, branch number per plant, leaf number, leaf area, and total leaf chlorophyll content) and yield traits (pod number, pod weight, plant yield, and total yield), compared with the control that gave the lowest values. Nanoseaweed foliar application at 2 ml.L-1 also revealed a significant increase and improvement in the same growth, morphological, and yield-related traits aforementioned, compared with the control treatment that gave the minimum values. Correspondingly, the interaction between both factors (magnetization intensity 2000 Gauss + Seaweed at 2 ml.L-1) also showed significant effects and provided the highest averages of plant height (36.05 cm), branch number per plant (7.04 branch.plant-1), leaf number (72.19 leaves.plant-1), leaf area (3775.88 cm 2 .plant-1), and total leaf chlorophyll content (45.47 mg.100 g-1 FW) and yield traits: pod number (19.11 pods.plant-1), pod weight (26.87 g), plant yield (513.49 g), and total yield (11.61 t.ha-1), compared with the control treatment.
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Papers by Hayder Sadaq Jaafar
articles by Hayder Sadaq Jaafar