scholarly journals Combined effects of NPK fertilizer with foliar application of benzyladenine or gibberellic acid on Dracaena marginata ‘Bicolor’ grown in different potting media

2020 ◽  
Vol 26 (4) ◽  
pp. 545-561
Author(s):  
Hossam Ahmed Ashour ◽  
Asmaa Bader Eldeen El-Attar ◽  
Mohamed Mahmoud Abdel Wahab
Keyword(s):  
Gibberellic Acid ◽  
Foliar Application ◽  
Growth Parameters ◽  
Chemical Constituents ◽  
Peat Moss ◽  
Npk Fertilizers ◽  
Growing Media ◽  
Economic Production ◽  
Total Carbohydrates ◽  
Npk Fertilizer

Abstract A pot experiments was carried out to evaluate the influence of growing media and combined treatments of NPK with either benzyladenine or gibberellic acid on growth, chemical constituents and anatomical structure of Dracaena marginata ‘Bicolor’. The plants were grown in two growing media; peat-moss, peat-moss+ sand (1:1, v v-1), received monthly NPK fertilizers (2 and 4 g pot-1) combined with either of benzyl adenine (BA) at 100 and 150 ppm or gibberellic acid (GA3) at 150 and 250 ppm, while the control plants received no treatments. As general, the results indicated that, peat- moss was superior to peat-moss+ sand medium on increasing most of vegetative growth parameters in terms of plant height, number of leaves/plant, leaf area, root length, as well as fresh and dry weights of leaves, stems and roots/plant, besides some macro elements represented in N, P, K, Ca and Mg% in both leaves and stems. While plants grown in peat-moss+ sand possessed significantly higher contents of total chlorophylls, total carbohydrates, Cu, Fe, Mn, Zn and B than those grown in peat- moss alone. Plants received combined NPK with either BA or GA3 resulted in significant increases in most of morphological and chemicals content over the control plants and it was outstanding that, GA3 was more effective than BA when they were combined with NPK. It can be concluded that for the highest quality, quantity growth and economic production of Dracaena marginata ‘Bicolor’, the plants could be grown in a medium of peat-moss and supplied monthly with NPK fertilizer at 2 g plant-1 along with foliar sprayed with 250 ppm GA3.

scholarly journals Optimizing hydroponic culture media and NO3−/NH4+ ratio for improving essential oil compositions of purple coneflower (Echinacea purpurea L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fatemeh Ahmadi ◽  
Abbas Samadi ◽  
Ebrahim Sepehr ◽  
Amir Rahimi ◽  
Sergey Shabala
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Plant Growth ◽  
Plant Height ◽  
Growth Parameters ◽  
Echinacea Purpurea ◽  
Peat Moss ◽  
Root Weight ◽  
Total Biomass ◽  
Growing Media

AbstractMedicinal plants represent a valuable commodity due to beneficial effects of their natural products on human health, prompting a need for finding a way to optimize/increase their production. In this study, a novel growing media with various perlite particle size and its mixture with peat moss was tested for hydroponic-based production of Echinacea purpurea medicinal plant under greenhouse conditions. The plant growth parameters such as plant height, total fresh leave weight, fresh root weight, total biomass, total chlorophyll, leaf area, and essential oil compositions were assessed. Perlite particle size in the growing media was varied from very coarse (more than 2 mm) to very fine (less than 0.5 mm), and the ratio between perlite and peat moss varied from 50:50 v/v to 30:70 v/v. In addition, two nitrate (NO3−) to ammonium (NH4+) ratios (90:10 and 70:30) were tested for each growing media. The medium containing very fine-grade perlite and 50:50 v/v perlite to peat moss ratio was found to be most optimal and beneficial for E. purpurea performance, resulting in maximal plant height, fresh and dry weight, leaf surface area, and chlorophyll content. It was also found that an increase in NO3−/NH4+ ratio caused a significant increase in plant growth parameters and increase the plant essential oil content. The major terpene hydrocarbons found in extract of E. purpurea with the best growth parameters were germacrene D (51%), myrcene (15%), α-pinene (12%), β-caryophyllene (11%), and 1-Pentadecene (4.4%), respectively. The percentages of these terpene hydrocarbons were increased by increasing of NO3−/NH4+ ratio. It can be concluded that decreasing the perlite particle size and increasing the NO3−/NH4+ ratio increased the plant growth parameters and essential oil compositions in E. purpurea.

scholarly journals Foliar Application of Bio-Stimulants Enhancing the Production and the Toxicity of Origanum majorana Essential Oils Against Four Rice Seed-Borne Fungi

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2363
Author(s):  
Abeer A. Mohamed ◽  
Mervat El-Hefny ◽  
Nader A. El-Shanhorey ◽  
Hayssam M. Ali
Keyword(s):  
Essential Oils ◽  
Foliar Application ◽  
Growth Parameters ◽  
Chemical Constituents ◽  
Gas Chromatography Mass Spectrometry ◽  
Curvularia Lunata ◽  
Rice Seed ◽  
Treated Plant ◽  
Oryzae Sativa ◽  
Origanum Majorana

In the present study, the enhancement of the production of Origanum majorana essential oils (EOs) was studied by treating plants with ascorbic acid (AA) and tryptophan (Trp) at concentrations of 100, 200 and 300 mg/L and Moringa oleifera leaf extract (MLE) at 2.5%, 5% and 10% as foliar applications during the seasons 2018–2019. The toxicities of the EOs were assayed against four seed-borne fungi (Bipolaris orzyae, Curvularia lunata, Fusarium verticilliodies and F. graminearum) isolated from rice grains (Oryzae sativa). Vegetative growth parameters and EO production were enhanced by the application of AA, Trp and MLE in both seasons. Analysis of the EOs by Gas chromatography–mass spectrometry (GC-MS) showed that the main chemical constituents were terpineol (cis-β-(1-terpinenol)), terpinen-4-ol, 4-thujanol (sabinene hydrate), α-terpineol, cymene and sabinene. The highest fungal mycelial growth inhibition (FMGI) percentages against F. verticilliodies were 94.57% and 92.63% as MLE at 5% and 10%, respectively, was applied to plants and 85.60% and 82.19% against F. graminearum as Trp was applied to plants at 300 and 200 mg/L, respectively. EOs from the treated plant with MLE (10%) observed the highest FMGI (84.46%) against B. oryzae, and EOs from plants treated with AA as foliar application at 300 and 200 mg/L showed the highest FMGI values of 81.11% and 81.85%, respectively, against the growth of C. lunata. Application of EOs extracted from plants treated with Trp, AA and MLE at 300 mg/L, 300 mg/L and 10%, respectively, or untreated plants to rice seeds inhibited or decreased the fungal infection percentage from 82.5% (naturally infected grains) to 1.75%, 10.5%, 17.5% and 18.5%, respectively. In conclusion, the extracted EOs affected by the foliar application of O. majorana plants with Trp, AA, and MLE could be useful as a biofungicide against rice seed-borne fungi.

scholarly journals The Application of Citric Acid in Combination with Some Micronutrients Increases the Growth, Productivity and a Few Chemical Constituents of Maize (Zea Mays) Plants

2019 ◽  
Vol 76 ◽  
pp. 86-97
Author(s):  
Mohamed A. Seif El-Yazal
Keyword(s):  
Zea Mays ◽  
Citric Acid ◽  
Reducing Sugars ◽  
Foliar Application ◽  
Growth Parameters ◽  
Chemical Constituents ◽  
Growth Yield ◽  
Dry Weight ◽  
Free Phenol ◽  
Total Free Amino Acids

The objective of this investigation was to study the helpful effects of foliar application with antioxidant citric acid in combos with some micronutrients on growth, yield and a few chemical constituents of maize (Zea mays L.) plants. The plants were grown up in clay soil, and foliar sprayed with eleven treatments (0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 and 0.5%) of combined fertilizer (citrine) which contains (15% citric acid, 2% Fe, 2% Mn and 2% Zn). The obtained results indicated generally that each one studied vegetative growth parameters (i.e. plant height, stem diameter, number of leaves /plant, dry weight of leaves) similarly as grain yield /fed. and some of their components (i.e. ear length, ear diameter, number of rows/ear, number of grains/row, grain weight/ear, weight of 100 grain and ear weight/plant) and some chemical constituents of leaves (chlorophyll a, b, total caroteniods, anthocyanin, total carbohydrates, total and reducing sugars, total free amino acids, total indoles, nitrogen, phosphorous and potassium) and grain protein %, were accrued with application of the various treatments. The maximum values were obtained from the treatment of 0.3%. On the contrary citrine treatments minimized reducing sugars and free phenol in leaves as compared to the control. The simplest results were obtained by the application of citrine treatment at 0.3%. Hence, it can recommend using citrine fertilizers as foliar application at the speed of 0.3% for improving growth, yield and chemical constituents of maize plants.

scholarly journals Efficacy of Foliar Application of Ga3 and K on Growth and Biochemical Parameters of Two F1 Hybrid Parthenocarpic Cultivars of Cucumber

2018 ◽  
Vol 26 (2) ◽  
pp. 5-13
Author(s):  
Priyanka Pal ◽  
Kuldeep Yadav ◽  
Krishan Kumar ◽  
Narender Singh
Keyword(s):  
Gibberellic Acid ◽  
Foliar Application ◽  
Growth Parameters ◽  
Sugar Content ◽  
Foliar Spray ◽  
Growth And Yield ◽  
F1 Hybrid ◽  
Total Sugar Content ◽  
Net Assimilation ◽  
Parameter Values

Abstract The experiment was conducted in anti-insect net house for three consecutive years (2013–2016) with the goal of improving the growth and biochemical contents in two F1 cultivars of cucumber, ‘Sevenstar’ and ‘KUK 9’. Treatment was given in the form of foliar spray containing different concentrations of gibberellic acid (GA3) [0.005 g·dm−3 (G1), 0.01 g·dm−3 (G2), and 0.015 g·dm−3 (G3)] and potassium [1.0 g·dm−3 (K1), 2.5 g·dm−3 (K2), and 5.0 g·dm−3 (K3)] alone and as combinations. All the treatments significantly enhanced plant growth and yield over control. The combination K2G2 showed a marked increase in growth parameters (leaf area, flower number, total dry matter production, growth rate, net assimilation rate) and biochemical attributes (total sugar content, starch, protein). The cultivar ‘KUK 9’ had more increased parameter values than the ‘Sevenstar’. This study provides a direct evidence of the beneficial role of the application of potassium and gibberellic acid on growth, biochemical attributes, and yield of cucumber.

scholarly journals Improving Essential Oil Compositions of Purple Coneflower (Echinacea Purpurea L.) Medicinal Plant Using Novel Growing Media and Nutrition Pattern in Hydroponics

2021 ◽  
Author(s):  
Fatemeh Ahmadi ◽  
Abbas Samadi ◽  
Ebrahim Sepehr ◽  
Amir Rahimi ◽  
Sergey Shabala
Keyword(s):  
Particle Size ◽  
Essential Oil ◽  
Plant Growth ◽  
Medicinal Plant ◽  
Plant Height ◽  
Growth Parameters ◽  
Echinacea Purpurea ◽  
Peat Moss ◽  
Root Weight ◽  
Growing Media

Abstract Medicinal plants represent a valuable commodity due to beneficial effects of their natural products on human health, prompting a need for finding a way to optimize/increase their production. In this study, a novel growing media with various perlite particle size and its mixture with peat moss was tested for hydroponic-based production of Echinacea purpurea medicinal plant under greenhouse conditions. The plant growth parameters such as plant height, total fresh leave weight, fresh root weight, total biomass, total chlorophyll, leaf area, and essential oil compositions were assessed. Perlite particle size in the growing media was varied from very coarse (more than 2 mm) to very fine (less than 0.5 mm), and the ratio between perlite and peat moss varied from 50:50 v/v to 30:70 v/v. In addition, two NO3-/NH4+ ratios (90:10 and 70:30) were tested for each growing media. The medium containing very fine-grade perlite and 50:50 v/v perlite to peat moss ratio was found to be most optimal and beneficial for E. purpurea performance, resulting in maximal plant height, fresh and dry weight, leaf surface area, and chlorophyll content. It was also found that an increase in NO3-/NH4+ ratio caused a significant increase in plant growth parameters and increase the plant essential oil content. The major terpene hydrocarbons found in extract of E. purpurea with the best growth parameters were germacrene D (51%), myrcene (15%), α-pinene (12%), β-caryophyllene (11%), and 1-Pentadecene (4.4%), respectively. The percentages of these terpene hydrocarbons were increased by increasing of NO3-/NH4+ ratio. It can be concluded that decreasing the perlite particle size and increasing the NO3-/NH4+ ratio increased the plant growth parameters and essential oil compositions in E. purpurea.

scholarly journals Alleviation of sea water stress on tomato plants by foliar application of aspartic acid and glutathione

2013 ◽  
Vol 42 (1) ◽  
pp. 31-44 ◽  
Author(s):  
Samia Ageeb Akladious ◽  
Salwa Mohamed Abbas
Keyword(s):  
Plant Growth ◽  
Aspartic Acid ◽  
Sea Water ◽  
Foliar Application ◽  
Growth Parameters ◽  
Chemical Constituents ◽  
Protein Electrophoresis ◽  
Tomato Plants ◽  
Anatomical Features ◽  
Harmful Effects

Tomato plants (Lycopersicon esculentum Mill.) treated with 8 and 16% of sea water reduced growth parameters and chemical constituents. Both aspartic acid and glutathione increased plant growth, anthocyanin, ?-tocopherol, ascorbic acid and enzymatic activities. Increased endogenous amino acids led to positive changes in protein electrophoresis and caused obvious changes in anatomical features of the stems. The effect of aspartic acid was superior to that of glutathione in increasing plant growth. Under low saline conditions, maximum plant growth was obtained from plants treated with aspartic acid and 8% of sea water, followed by 4%. Data revealed that antioxidants could partially alleviate the harmful effects of salinity. DOI: http://dx.doi.org/10.3329/bjb.v42i1.15822 Bangladesh J. Bot. 42(1): 31-43, 2013 (June)

scholarly journals Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress

2021 ◽  
Vol 27 (1) ◽  
pp. 88-102
Author(s):  
Hossam Ahmed Ashour ◽  
Sanaa Esmail Ahmed Esmail ◽  
Mohamed Salah Kotb
Keyword(s):  
Humic Acid ◽  
Salinity Stress ◽  
Foliar Application ◽  
Growth Parameters ◽  
Saline Water ◽  
Tap Water ◽  
Chemical Constituents ◽  
Total Phenolic ◽  
Chemical Compositions ◽  
High Concentration

Abstract Pots experiment was conducted to investigate the effect of bio-stimulators chitosan (CHT) or humic acid (HA) on Vitex trifolia ‘Purpurea’ exposed to salinity stress. Salinity stress was imposed by irrigation with saline water at concentration of 1000, 2500 and 5000 ppm, in addition to control (280 ppm), plants exposed to salinity were sprayed every 4 weeks with either CHT at concentrations of 30, 60 and 90 ppm or HA at concentrations of 1000, 1500 and 2000 ppm, while control plants sprayed only with tap water. The results showed that, with increasing salinity stress all vegetative growth parameters were decreased and chemical constituents including total chlorophylls total carbohydrates, K+ %, Ca2+ % and K+/Na+ ratio were reduced. In contrast, elevating salinity stress increased contents of proline, total phenolic, Na+ %, Cl− %. On the other hand, foliar application of either CHT or HA had favorable impact on increasing vegetative traits and chemical compositions, meanwhile reducing accumulation of total phenolic, Na+ and Cl− % toxic ions in leaves, HA was generally more effective than CHT. Based on the results, it can be recommended that, CHT or HA at high concentration was the best effective treatments; however, HA was superior and economic treatment recommended for alleviating the adverse impact of salinity stress on Vitex trifolia ‘Purpurea’ plants irrigated with saline water at concentration up to 5000 ppm.

scholarly journals Effect of different concentration of Gibberellic and Proline acid in the growth and production of pea plant Pisum sativum L.

2016 ◽  
Vol 13 (2) ◽  
pp. 261-267
Author(s):  
Baghdad Science Journal
Keyword(s):  
Gibberellic Acid ◽  
Foliar Application ◽  
Growth Parameters ◽  
Dry Weight ◽  
Botanical Garden ◽  
College Of Education ◽  
Major Elements ◽  
Best Value ◽  
Nitrogen Phosphorus ◽  
Clay Pots

This experiment was conducted to evaluate the effect of foliar spraying with gibberellic acid concentrations (0,50,100)mg.L­¹ and proline acid concentrations (0, 25, 50)mg.L­¹ and their interactions on some growth parameters of pea plant using clay pots in the botanical garden of Biology Department College of Education for pure science Ibn –Al-Haitham ,Baghdad University, for the growing season 2012-2013 the experiment involved the studing of some growth parameters as plant?s height, dry weight, wt. of pods.plant­¹, biology yield and the concentration of some major elements (nitrogen, phosphorus and calcium) in plant?s seeds. The experiment was designed according to Completely Randomized Desig(CRD) with three replications. Results revealed that foliar application with the concentrations of both acid caused a significant increase in the growth parameters, and the interaction gave a significant effect, the concentration 100 mg.L­¹ gibberellic acid and the concentration 50 mg.L­¹ proline gave the best value for plant?s height, dry weight, the concentration of nitrogen and calcium in plant?s seeds, but the concentration 100 mg.L­¹ gibberellic acid and the concentration 25 mg. L­¹ proline acid gave the higheat value for the concentration of phosphorus in plant?s seeds while the concentration 50 mg .L­¹ gibberellic acid and the concentration 25 mg.L­¹ proline gave the best values for wt. of pods.plant­¹, biology yield.

scholarly journals Pengaruh Tingkat Naungan dan Media Tanam Terhadap Persentase Pecah Mata Tunas dan Pertumbuhan Bibit Karet Okulasi Hijau

2014 ◽  
Vol 1 (2) ◽  
pp. 101
Author(s):  
Sakiroh Sakiroh ◽  
Saefudin Saefudin
Keyword(s):  
Light Intensity ◽  
Hevea Brasiliensis ◽  
Chicken Manure ◽  
Npk Fertilizers ◽  
Growing Media ◽  
Experimental Station ◽  
Main Plot ◽  
Npk Fertilizer ◽  
Goat Manure ◽  
Good Percentage

<p>Keberhasilan okulasi hijau di pembibitan karet (Hevea brasiliensis) stum mata tidur tidak selamanya mencapai persentase tumbuh yang baik karena dipengaruhi faktor lingkungan dan media tanam. Penelitian ini dilakukan untuk mengetahui pengaruh tingkat naungan dan media tanam terhadap pecah mata tunas dan pertumbuhan stum mata tidur bibit karet hasil okulasi hijau. Penelitian dilaksanakan di Kebun Percobaan (KP.) Pakuwon Balai Penelitian Tanaman Industri dan Penyegar, Sukabumi, pada bulan Januari-Desember 2013. Rancangan penelitian adalah petak terpisah dengan tiga ulangan. Sebagai petak utama adalah tingkat naungan (N) dengan 3 taraf, yaitu N0 = tanpa naungan, N1 = tingkat naungan 50%, dan N2 = 70%. Sebagai anak petak ialah media tanam (M) dengan 5 taraf, yaitu M0 = tanah tanpa pupuk, M1 = tanah + pupuk kotoran ayam (4:1), M2 = tanah + pupuk kotoran kambing (4:1), M3 = tanah + pupuk kotoran ayam + 2,5 g pupuk NPK, dan M4= tanah + pupuk kotoran kambing + 2,5 g pupuk NPK. Peubah yang diamati meliputi kecepatan pecah mata tunas dan pertumbuhan bibit. Hasil penelitian menunjukkan bahwa kondisi pembibitan karet tanpa naungan di KP. Pakuwon dengan intensitas cahaya 67.041,67 lux dan suhu udara 31,79 °C menghasilkan persentase pecah mata tunas dan pertumbuhan tinggi tunas hasil okulasi hijau tertinggi. Perlakuan media tanam dan interaksinya dengan tingkat naungan belum memperlihatkan pengaruh yang nyata terhadap persentase pecah mata tunas sampai umur 8 MST dan terhadap pertumbuhan tunas hasil okulasi sampai umur 16 MST.</p><p>Kata kunci: Hevea brasiliensis, stum mata tidur, bibit, kotoran kambing, kotoran ayam</p><p>The success of green budding using budded stump of rubber seedling (Hevea brasiliensis) does not always give a good percentage of growth due to the influence of environmental factors and growing media. This study was carried out to determine the effect of shading levels and growing media that can enhance the growth of budded stump on rubber seedling derived from green budding. The experiment was conducted at Pakuwon Experimental Station (E.S.), Indonesian Industrial and Beverage Crops Research Institute, from January-October 2013. The study was designed as a split plot with three replications. The main plot is the level of shade with 3 levels: without shade (N1), 50% shade (N2) and 70% shade (N3). Meanwhile, subplot is growing media with 5 levels: soil without fertilizer (control) (P0), Soil + chicken manure (4: 1) (P1), soil + goat manure (4: 1) (P2), Soil + chicken manure + 2.5 g of NPK fertilizer (P3) and soil + goat manure + 2.5 g of NPK fertilizers (P4). The results showed that the condition of the rubber nursery without shade at Pakuwon E.S. with the light intensity of 67041.67 lux and temperature of 31.79 °C resulted the highest percentage of breaking buds and the growth of buds derived from green buddings. The treatment of growing media and its interaction with the shading levels does not show significant effect on the percentage of breaking buds until 8 weeks after planting (WAP) and the growth of buds until 16 WAP.</p>

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