Hussein A. Al-Azzawi; Ghassan J. Z.
Volume 24, Issue 4 , December 2024, , Pages 158-166
Abstract
The current research aimed to know the effect of sowing date and fertilizers rate of mineral and organic on qualitative of kohlrabi. This study conducted on Kohlrabi (Brassica oleracea var. gongylodes) cv. White Vienna at the Experimental Station of the Department of Horticulture and Landscape, College ...
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The current research aimed to know the effect of sowing date and fertilizers rate of mineral and organic on qualitative of kohlrabi. This study conducted on Kohlrabi (Brassica oleracea var. gongylodes) cv. White Vienna at the Experimental Station of the Department of Horticulture and Landscape, College of Agriculture, Tikrit University, during the winter season of 2021-2022. The experiment carried out according to Randomized Complete Block Design (RCBD) with three replications. The experiment consisted of two factors. First factor included three dates of sowning viz, 2/8, 16/8. and 1/9. Second factor included five levels of nitrogen combination i.e. (100% mineral (N), 75% mineral (N) + 25% organic (N), 50% mineral (N) + 50% organic (N), 25% mineral (N) + 75% organic (N) and 100% organic (N). The results showed that sowing date 2/8 recorded highest values in percentage nitrogen and potassium in kohlrabi leaves and percentage of acidity in knob. While, sowing dates 16/8 and 1/9 recorded highest values in total dissolved solids (TSS) in knob and content of vitamin C in knob respectively. On the other hand, using 25% (N) mineral+ 75% (N) organic improved all studied of quality characteristics except percentage of acidity in knob compared to other fertilizer treatments. Therefore, the interaction treatment between sowing date 2/8 with 25% (N) mineral+ 75% (N) organic increased percentage of nitrogen, phosphorous and potassium in the leaves, acidity and content of vitamin C in the knob.
Ghassan Zaidan; Kutaiba Y. Aied; Abdulkareem E. S. Alkurtany
Volume 24, Issue 2 , June 2024, , Pages 178-196
Abstract
Growing potatoes requires great care because it needs large nutrients. Proper fertilization is a critical aspect of improving yield. This study comprises a field experiment to assess the impact of several fertilization approaches on the crop performance of potato (cv. Montreal). In this context, we used ...
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Growing potatoes requires great care because it needs large nutrients. Proper fertilization is a critical aspect of improving yield. This study comprises a field experiment to assess the impact of several fertilization approaches on the crop performance of potato (cv. Montreal). In this context, we used eight distinct fertilizer treatments: control (T0), standard mineral fertilizer (T1), substance mushroom spent (T2), cow + poultry manure (T3), compost (T4), 50% standard mineral fertilizer comprising substance mushroom spent (T5), 50% standard mineral fertilizer augmented with cow + poultry manure (T6) and 50% standard mineral fertilizer augmented with compost (T7). The results indicate that control treatment gave least days to mean germination time. While the standard mineral fertilizer (T1) had the highest values in chlorophyll content in leaves, single tuber weight, tuber count per plant, and plant yield. On the other hand, (T6) showed significant increment in number of tubers per plant. Meanwhile, (T7) treatment produced higher marketable yield and tuber per plant. Whereas, there are not significant difference among treatments in number of arial stems. on the other hand, these results were the lowest for the control treatment. Hence, the fertilization approach extensively impacts vegetative development and tuber yield.
Ghassan J. Z; Wissam Ghalib
Volume 23, Issue 3 , September 2023, , Pages 13-21
Abstract
Field experiment was conducted on Kohlrabi (Brassica oleracea var. gongylodes) ‘White Vienna cv.’ at the Experimental Station of the Department of Horticulture and Landscape, College of Agriculture, Tikrit University, Salah al-Din, Iraq, during the winter season of 2021-2022 under drip irrigation ...
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Field experiment was conducted on Kohlrabi (Brassica oleracea var. gongylodes) ‘White Vienna cv.’ at the Experimental Station of the Department of Horticulture and Landscape, College of Agriculture, Tikrit University, Salah al-Din, Iraq, during the winter season of 2021-2022 under drip irrigation system. This study aimed to investigate the effect of seedling age (45, 60 and 75 days) and different combination of NPK (60:40:0, 70:50:20, 80:60:30, 90:70:40, 100:80:50 and 120:90:50 kg ha-1) on qualitative of kohlrabi plants. The experiment was carried ou according to Randomized Complete Block Design (RCBD) with three replications. The comparison of means was performed by Duncan at a P≤ 0.05 probability level. Results showed that seedling age 45 days increased significantly in the percentages of nitrogen in the leaves, phosphorus and potassium, total dissolved solids (TSS) in knob, content of vitamin C in knob and carbohydrates in the knob which were 3.045%, 0.425%, 3.868%, 6.333%, 0.389 mg ml-1 and 6.204% respectively. On the other hand, using combination fertilizer of NPK at level 120:90:50 kg ha-1, gave significant increment in all studied characteristics. Interaction treatment between seedling age 45 days and combination fertilizer of NPK at 120:90:50 kg ha-1 recorded highest values in all studied characteristics of qualitative for kohlrabi plant except the percentage of nitrogen in leaves. Whereas, seedling age 60 days and combination fertilizer of NPK at 120:90:50 kg ha-1 showed significant superiority in the percentage of nitrogen in leaves 5.533%.
Ghassan Zaidan; Zakaria Wahab; Sadam Hassan
Volume 23, Issue 2 , June 2023, , Pages 128-141
Abstract
This study aims to understand the effect of magnetic field on water properties and plants growth performance. Magnetic water is produced when water is passed through a magnetic field which alters the state of water macromolecules. The changes to physico-chemical properties of magnetized water affect ...
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This study aims to understand the effect of magnetic field on water properties and plants growth performance. Magnetic water is produced when water is passed through a magnetic field which alters the state of water macromolecules. The changes to physico-chemical properties of magnetized water affect the biological properties of organisms. This experiment was conducted at a greenhouse in the Institute Sustainable Agrotechnology (INSAT) experimental farm, Universiti Malaysia Perlis, Padang Besar, Perlis, Malaysia. It carried out according to Randomize Complete Block Design (RCBD) with four replications. The magnetic field was applied on water to evaluate through three different intensities; 0.10, 0.15, and 0.20 Tesla, in addition to control treatment (without magnetic) for seedling growth of pumpkin (CV. Labu Loceng) and okra (CV. Bendi Alabama). The morphological study of water and study of seedling height, stem diameter, leaf numbers, seedling weight and dry weight of seedling are researched. The magnetic water at 0.20 Tesla had significantly increases in the leaf number per seedling 6.000 leaf seedling-1 and dry seedling weight 0.5700 g of pumpkin. Meanwhile, the magnetic water at 0.20 Tesla increased significantly in seedling height, stem diameter, leaf number per seedling, seedling weight and dry seedling weight of okra reached to 13.750 cm, 2.677 mm, 5.500 leaf seedling-1, 1.7800 g and 0.3369 g, respectively compared to control.
Ghassan J. Z.; Ammar Saeed; Zakaria Wahab; Zakaria Wahab
Volume 23, Issue 1 , March 2023, , Pages 141-157
Abstract
To ascertain the best possible method for deed treatment that would enable germination and seedling growth of Mucuna bracteata, the experiment was carried out at the experimental farm of Institute of sustainable Agro technology, University Malaysia Perlis, Padang Besar, Perlis, Malaysia. The design of ...
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To ascertain the best possible method for deed treatment that would enable germination and seedling growth of Mucuna bracteata, the experiment was carried out at the experimental farm of Institute of sustainable Agro technology, University Malaysia Perlis, Padang Besar, Perlis, Malaysia. The design of the experiment was based on the Completely Randomised Design and it consisted of four replications. The results of the experiment indicated that when the seeds are treated in a blender for 2 minutes, it considerably improves the speed of germination, percentage of germination, mean daily germination, fresh shoot, dry shoot weight, and shoot to root fresh weight ratio. On the other hand, when the seeds were soaked in H2SO4 for 30 minutes, there was an improvement in the total fresh weight, mean germination time, dry root weight and total plant dry weight. When the seeds were treated in a blender for 4 minutes, it substantially improved the germination value, the peak value, and the total number of leaves per plant.
Ghassan J. Z.; W. Zakaria; A. R. Shaari
Volume 21, Issue 3 , September 2021, , Pages 59-69
Abstract
Incorporating green manure in soil increases the availability of nutrient elements and improve of quality characteristics in the succeeding crops. So, a field experiment was conducted at the experimental farm and laboratory of Institute of Sustainable Agrotechnology, Universiti Malaysia Perlis, Padang ...
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Incorporating green manure in soil increases the availability of nutrient elements and improve of quality characteristics in the succeeding crops. So, a field experiment was conducted at the experimental farm and laboratory of Institute of Sustainable Agrotechnology, Universiti Malaysia Perlis, Padang Besar, Perlis, Malaysia. This study was about effect of green manure with mungbean (Vigna radiata L.) on some quality characteristics of sweet potato under two grown conditions; open field and greenhouse. The green manuring of mungbean was compared with the control. Results of the study show of that there were different effect of treatments on quality characteristics of sweet potato. The highest nitrogen content in leaves and protein content in tuberous root 1.64% and 2.49%, respectively, were observed in the treatment of mungbean residue. But the highest sugar content of 19.93% in tuberous root was recorded in control treatment. Mungbean residue and control treatment were not significantly different between them in phosphorous and potassium content in leaves, hardness of tuberous root and starch content. There was significant increment in nitrogen and potassium contents in sweet potato leaves under open field condition. On the other hand, there was significant increment in sugar content under greenhouse condition. But the different conditions were at par in phosphorous content in leaves, starch content in tuberous root and hardness of tuberous root. The nitrogen content in leaves was greatest at treatment of mungbean residue under open field condition, while treatment of mungbean residue under greenhouse condition gave highest protein content in tuberous root compared to other treatments. Highest starch content and sugar in tuberous root were found in control treatment under greenhouse condition 52.90% and 20.92%, respectively.
Ghassan J. Z.; Ammar H. Saied; Harith B. Abdul Alrahman
Volume 21, Issue 1 , March 2021, , Pages 36-47
Abstract
A comparative agronomical experiment was conducted at research station/ Department of Horticulture and Landscape/ College of Agriculture/ Tikrit University, to study the effect of two different soil textures (loam and silt loam) on growth and yield of six varieties of okra. The two soil textures ...
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A comparative agronomical experiment was conducted at research station/ Department of Horticulture and Landscape/ College of Agriculture/ Tikrit University, to study the effect of two different soil textures (loam and silt loam) on growth and yield of six varieties of okra. The two soil textures were analyzed for pH, nitrogen, organic matter, phosphorous, Ca, K, Mg etc. at the Central Laboratory of Soil Science and Water Resource Department, College of Agriculture, Tikrit University. Six okra varieties of okra were used in this experiment (i. e., Clamson, Hussainawia, Sultani, Btra, Clemson and Clemson spinless). The experiment was carried out with a Randomized Complete Block Design with Split plot arrangement with four replicates. Data were recorded for plant height, stem diameter, branches number on main stem, total number of branches, pod length, pod diameter, pod weight, pods number, yield per plant and percentage of dry matter in pod. Results indicated that plant height, branches number on main stem, pod weight, pod number and yield per plant produced in Loam soil were significantly higher (P ≤ 0.05) than those produced in Silt loam soil. Irrespective of soil texture, the stem diameter, branches number on main stem and total branches produced in Btra variety, whereas, pod diameter, pod weight, pod number and pod yield per plant produced in Hussainawia variety were significantly higher (P ≤ 0.05) than those produced in other varieties. But, pod length did not differ significantly (P ≤ 0.05) between six varieties. It can be concluded from the present findings that Btra and Hussainawia cultivars may be produced in different soil..
Ghassan J. Z.; Mohammed Abdul Kareem; Abdul whap Mahdi
Volume 20, Issue 2 , December 2020, , Pages 47-56
Abstract
inhibitory effects of the aqueous extracts of Vicia faba on the seed germination and the growth of the Lycopersicon esculentum seedlings. The experiment was carried out at the research stations and laboratories of College of Agriculture, Tikrit University, and the Department of Examination and Certification ...
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inhibitory effects of the aqueous extracts of Vicia faba on the seed germination and the growth of the Lycopersicon esculentum seedlings. The experiment was carried out at the research stations and laboratories of College of Agriculture, Tikrit University, and the Department of Examination and Certification of Seeds in Tikrit, Salah Aldeen, Iraq. In this study, different concentrations of the aqueous extracts of various parts of Vicia faba were tested in this study, namely (4, 8 and 12% root extracts; 4, 8 and 12% stem extracts; 4, 8 and 12 % leaf extracts) for determining their effects on the seed germination and the seedling growth of the Lycopersicon esculentum plant. Water was used as the control treatment. All parameters used in the experiments were randomly distributed based on the Completely Randomised Design (CRD). The results were the mean of 4 replicate experiments. The results indicated that the aqueous root extracts (4%) of Vicia faba showed a significant stimulatory effect on the different growth parameters like radicle length and the dry weight of the radicle of the Lycopersicon esculentum. The different aqueous extracts of the Vicia faba showed differing effects (either stimulatory or inhibitory) on the seedling growth. The mode of action was dependent on the extracts of the plant parts that were used. The results indicated that the different concentrations of aqueous extracts of various parts of Vicia faba showed an allelopathic effect.
