Foliar application of Tecamin max® to alleviate water deficit on vegetative growth and yield of okra

2018 ◽  
Vol 25 (3) ◽  
pp. 278-284
Author(s):  
Aziz Mahdi Abd Al-Shammari ◽  
Mohammed Ali Abood ◽  
Ghassan Jaafar Hamdi
2018 ◽  
Vol 25 (4) ◽  
pp. 394-399
Author(s):  
Mohammed Ali Abood ◽  
Aziz Mahdi Abd Al-Shammari ◽  
Ghassan Jaafar Hamdi

2021 ◽  
Vol 117 (3) ◽  
pp. 1
Author(s):  
Fadl Abdelhamid HASHEM ◽  
Rasha M. EL-MORSHEDY ◽  
Tarek M. YOUNIS ◽  
Mohamed A. A. ABDRABBO

<p>Temperature rise is one of the most challenging climate change impacts that increase the intensity of heat stress. In this investigated the production of celery (<em>Apium graveolens</em> var. <em>rapaceum </em>F1 hybrid)) was tested during the late season. The experiment was carried out during the two successive summer seasons of 2019 and 2020 in Giza Governorate, Egypt. The experimental design is a split-plot, the main plots consist of three low tunnel cover treatments, and three spray treatments with three replicates in sub-main plots. Results showed that the use of white net cover gave the highest vegetative growth and yield followed by the black net. Values of plant yield were 951, 765, and 660 g/plant for white, black and without cover, respectively, in the first season. The foliar application of 3 mM of potassium silicate produced the highest vegetative growth and yield compared to the control treatment. Referring to the effect of spray foliar application of potassium silicate on yield 1.5 mM (S1), 3 mM (S2), and control were 892, 795, and 689 g/plant in the first season, respectively. The best combination that delivered the highest vegetative growth and yield was a cover low tunnel with a white net combined with S2 foliar application.</p>


Author(s):  
Rohina Bashir ◽  
Hafiza Naila Riaz ◽  
Muhammad Shafiq ◽  
Nusrat Parveen ◽  
Mekhled Mutiran Alenazi ◽  
...  

Scarcity of water is one of the most serious concerns in plant biology with diverse implications at all the levels of molecular, biochemical, and physiological phenomena of plant growth, development, and consequently the productivity. Most of the strategies to induce or enhance drought tolerance in plants are unreasonably expensive and/or time-consuming. Some studies conducted in the recent past have shown that plant growth regulators (PGRs) may induce/improve physiological tolerance in plants to cope with adverse environmental conditions including drought. The present study was aimed at investigating the effects of foliar spray of GABA (0, 1, 2, and 4 mM) applied 20 days following the germination of seeds, on vegetative growth, morphological characteristics, integrity of cell-membrane, and the levels of photosynthetic pigments and enzymatic antioxidants in carrot cvs. Supertaj and Bharat, grown under 100% and 50% field capacity of soil moisture. The treated and untreated (control) carrot plants were harvested and analyzed 2 weeks following the GABA application. The results revealed that foliar application of GABA improved the vegetative growth and significantly increased the levels of free amino acids, plastid pigments, enzymatic antioxidants, and the relative water content in the root crop grown under 50% field capacity of soil moisture, compared to control. Additionally, the GABA application decreased the electrolyte leakage of ions and melondialdehyde (MDA) content in carrot leaves. The carrots harvested from GABA-treated or untreated (control) plants were not significantly different for their protein contents. In conclusion, the incorporation of GABA in the production management of carrots may help plants to mitigate the adverse effects of water deficit stress.


2021 ◽  
Vol 52 (4) ◽  
pp. 989-998
Author(s):  
Sh. M. M. Al-Atrushy

THis investigation aimed to study the effect of foliar application with zinc alone or in combination with salicylic acid on vegetative growth, yield, physical and chemical properties of Halawani grapevine cultivar during two successive seasons (2017 and 2018). Zinc was used at concentration of 2 and 4 g.L-1 in a chelated form and salicylic acid at concentration of (50, 100 and 150 mg. L-1) in addition to control treatment for each of them. The result obtained proved that all parameters such as leaf area, total chlorophyll, number and weight of cluster, yield, berries size and weight, as soon as TSS, total sugar, juice percentage and density, β-carotenes, Zn, N. proline content of leaves were increased significantly as compared with control, while total acidity and total phenols were decreased by all treatments as compared with control. Furthermore, combination between high concentration of zinc and salicylic acid improved all parameters in comparison with the control.


Author(s):  
N. J. Al- Amiry ◽  
Amir S. Al- Musawy

This study has been conducted at the city of Diwaniah located 180 km south of Baghdad to examine the effect of potassium and copper floral application on the growth and yield of potato plants (var.Burren) during the 2015 spring season. Factorial experiment has been carried out in Random Complete Block Design (RCBD) with three replications and Nine treatments have been used  which have three potassium concentrations at 0, 3000, and 6000 mg KL-1 designated  respectively and three copper concentrations at 0, 2.5, and 5 mg CuL-1 designated  respectively in addition to their interactions. The treatments are applied at three different timeframes which are 45 days after sowing, 15 days after the first spraying, and 15 days after the second spraying. Vegetative growth have been collected at the maturation stage then dried to obtain dry weight and N, P, K, and Cu have been estimated in plant leaves. Tubers are harvested to measure number and yield/plant, tubers average weight, total marketing yield and yield. The obtained data are statistically analyzed and averages are compared according to the least significant differences (LSD) at 5% level of significance and the results were as follows: The yield components which include tubers number as compared with the control treatment. Copper foliar application significantly increase vegetative traits of the yield. The K2 treatment has given the highest significant increase of main stem vegetative growthof the components which include tubers number as compared with the control treatment. The interaction treatments have given a significant result in terms of the both the vegetative and yield traits where K2* Cu2 give the most significant increase in term of vegetative growth while K2* Cu1 significantly increase the plant height and K1* Cu2 significantly affect the number of leaves. As for the yield component, K2*Cu2 show to have the most significant result in all traits under investigation. Finally.


2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Dilzar Basit Zrar ◽  
Bayan Rokan Aziz ◽  
Sawsan M-S Ali Kanimarani

This investigation was carried out during 4th November 2019 to 20th April 2020 at Grdarasha field, college of Agricultural Engineering Sciences-Salahaddin University, to evaluate the effect of foliar application of the Nitrophenolates biostimulator at different levels (0, 0.2, 0.4, 0.6, 0.8 and 1 ml.l-1)on growth and yield of two Pea cultivars (Utrillo and Nihal). Significant results were obtained from most studied parameters. The results indicated that cultivars had significant response on some of vegetative growth and yield parameters of pea, the best results were recorded from Utrillo cultivar. Moreover, foliar spraying of Nitrphenolates had significant influence on vegetative parameters, the highest significant result of leaves and branchesnumber (110.747 and 2.694 respectively) were recorded from (1ml.l-1). While, the best results of vegetative growth fresh weight and leaf chlorophyll content were obtained from 0.2 ml.l-1treatment. Foliar spray of Nitrphenolate also increased significantly yield parameters, where the highest values of number of seeds.pod-1, yield per plant, plat and hectare (6.000, 0.168kg, 1.009kg and 1.681ton respectively) were recorded from 0.2 ml.l-1 treatment compared with the control. Meanwhile, there was the significant response of cultivars to foliar application of Nitrophenolates on most vegetative growth and yield components and were recorded for both cultivars especially Nihal.


2018 ◽  
Vol 3 (2) ◽  
pp. 13-19 ◽  
Author(s):  
Ismael Ahmad Hassan

The aim of this study was to find the effect of planting distances and spraying with different concentrations of leaf fertilizer with micronate15 on some vegetative growth traits and yield of pea variety Green Canada in non-heated greenhouses, by using three planting distance (factor A) which includes:  A1:20, A2: 30, and A3:40 cm and four spray concentrations as foliar application (factor B) which includes: B0: zero, B1: 0.5, b2: 1.5 and b3: 2.5 liter of water). According to the results of this study the highest plant (124.82cm), number of branches (4.58), fresh weight,(95.94 g) and the total yield (142.41 g)were observed in the distance of planting (30 cm), while the highest value of the pod length was observed from the distance planting in 40 cm which is 8.39 cm. The concentration of 1.5 mL / liter of micronate15 gave the highest values of branches 4.53 branches, fresh weight 97.47 g, number of pods 36.73 pods, number of seeds 8.55 oats, length of the pod 8.83 cm and the total yield 150.78 g. The highest values of the number of branches 5.14 branch, fresh weight 105.72 g, the number of seeds 8.90 seed and the total yield 159.78 g were observed from the interaction between the planting distance of 30 cm and 1.5 mL / liter of nutrient micronate15. Also, the interaction between   20 cm distance and foliar application with 2.5 mL l of micronate15 gave the highest value in the number of leaves which is 53.36.


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