scholarly journals Growth parameters and plant biomass of tomato evaluated under different concentrations of boric acid

2020 ◽  
Vol 2 (3) ◽  
pp. 113-118
Author(s):  
Ezekiel Dare Olowolaju ◽  
◽  
Akinjide Moses Afolabi ◽  
Abiodun Mutairu Adejumo ◽  
Kehinde Adesegun Momodu ◽  
...  
Keyword(s):  
Boric Acid ◽  
Leaf Area ◽  
Nutrient Solution ◽  
Plant Biomass ◽  
Growth Parameters ◽  
Dry Weight ◽  
Growth Indices ◽  
Shoot Height ◽  
Morphological Attributes ◽  
Number Of Leaves

The objective of this study was to investigate the growth parameters and plant biomass of tomato (Solanum lycopesicum) evaluated under different levels of boric acid, major source of boron. The treatments were; Normal nutrient solution (control, boric acid conc. = 0.000308 g l-1); nutrient solution in which the concentration of boric acid increased by the factor of 5 (boric acid x5, boric acid conc. = 0.00154 g l-1); and nutrient solution in which the concentration of boric acid was increased by the factor of 10 (boric acidx10, boric acid conc. = 0.00308 g l-1). Morphological attributes determined were shoot height, number of leaves, leaf area, shoot, leaf and root fresh and dry weight, and growth indices. Shoot height, number of leaves, leaf area, shoot, leaf and root fresh and dry weight, and growth indices in the seedlings treated with boric acid increased by factor of 10 (boric acid x10)were greater than other treatments. It can be concluded that nutrient solution of boric acid increased by a factor of ten improve the growth parameters and plant biomass of tomato.

scholarly journals Effect of Foliar Application of Growth Regulators on Vegetative and Physiological Growth Parameters in Ajowan (Trachyspermum ammi L. Sprague)

2020 ◽  
pp. 100-109
Author(s):  
Y. Rajasekhara Reddy ◽  
G. Ramanandam ◽  
P. Subbaramamma ◽  
A. V. D. Dorajeerao
Keyword(s):  
Leaf Area ◽  
Foliar Application ◽  
Growth Parameters ◽  
Block Design ◽  
Foliar Spray ◽  
Dry Weight ◽  
Area Index ◽  
Chlorophyll Contents ◽  
Trachyspermum Ammi ◽  
Number Of Leaves

A field experiment was carried out during rabi season of 2018-2019, at college farm, College of Horticulture, Dr. Y.S.R. Horticultural University, Venkataramannagudem, West Godavari District, Andhra Pradesh. The experiment was laidout in a Randomised Block Design with eleven treatments (viz., T1- NAA @ 50 ppm, T2-NAA @ 100 ppm, T3-GA3 @ 50 ppm,  T4-GA3 @ 100 ppm, T5-Thiourea @ 250 ppm, T6-Thiourea @ 500 ppm, T7-28-Homobrassinolide @ 0.1 ppm, T8-28-Homobrassinolide @ 0.2 ppm, T9-Triacontinol @ 2.5 ppm, T10-Triacontinol @ 5 ppm, T11-(Control) Water spray) and three replications. The treatments were imposed at 30 and 45 DAT in the form of foliar spray. Foliar application of GA3@ 100 ppm (T4) had recorded the maximum plant height (108.20 cm), leaf area (9.53 cm2) and leaf area index (0.74). Foliar application of thiourea @ 250 ppm (T5) had recorded the maximum values with respect to number of primary branches (15.03 plant-1), number of secondary branches (83.40 plant-1), plant spread (1793 cm2 plant-1), fresh weight (376.29 g plant-1), dry weight (103.54 g plant-1) and number of leaves plant-1((298.8). The same treatment (T5) had recorded the highest values with respect to crop growth rate (1.44 gm-2d-1), chlorophyll-a (1.40 mg g-1), chlorophyll-b (0.076 mg g-1) and total chlorophyll contents (1.48 mg g-1) in the leaves.

scholarly journals EFFECT OF DIPPING IN GIBBERLLIC ACID AND SPRAYING NUTRIENT SOLUTION AGRO LEAF ON SOME VEGETATIVE GROWTH AND YIELD OF JERUSALUM ARTICHOKE.

2016 ◽  
Vol 47 (4) ◽  
Author(s):  
Sadik & et al.
Keyword(s):  
Leaf Area ◽  
Nutrient Solution ◽  
Vegetative Growth ◽  
Dry Weight ◽  
Factorial Experiment ◽  
Growth And Yield ◽  
Control Treatment ◽  
Highest Weight ◽  
Number Of Leaves ◽  
Number Of Branches

This study was conducted in experimental fields, Department of Horticulture, University of Bagdad, in Abu-Graib  during season 2011-2012 for jerusalum artichoke. This study was included the effect of dipping tubers in three concentrations of GA3(2.5,5,10g/l) (G1,G2,G3),as well as to control treatment (G0), and spraying nutrient solution Agro leaf A1 (8g/l), as well as to control treatment (A0). This study was made by using Factorial experiment (4*2) within the design RCBD with three replicates. Results could be summarized as follows: G3A0 increased field emergence (12.00 day), G2A0 increased percentage of germination (99.33%) and G2A1 increased number of branches (4.60 stem.plant-1) but the treatment G1A1gave highest rate for number of leaves, leaf area, guide of leaf area, dry weight of the vegetative parts and dry weight of 100gm tubers as(4495.10 leaf.plant-1, 2246.20 dsm2, 99.84, 922.40g, 24.00g.) respectively. The treatments gave significant differences quantity yield, so treatment G3A0 gave highest weight of the tubers as(45.55g.) but the treatment G3A1 gave highest number of the tubers as(68.00 tuber.plant-1 ) and highest yield of plant as (2890g/plant).

scholarly journals Effect of Prior Heat Stress on the Early Growth of Carica papaya

2013 ◽  
Vol 5 (4) ◽  
pp. 508-512
Author(s):  
Gideon Olarewaju OKUNLOLA ◽  
Adekunle Ajayi ADELUSI
Keyword(s):  
Heat Stress ◽  
Leaf Area ◽  
Carica Papaya ◽  
Growth Parameters ◽  
Dry Weight ◽  
Experimental Period ◽  
Leaf Length ◽  
Fresh Weight ◽  
Shoot Height ◽  
Chlorophylls A And B

The experiment was carried out to determine the effects of heat stress on some growth parameters like shoot height, leaf area, fresh weight, dry weight as well as the accumulation of chlorophylls in Carica papaya. Seedlings of C. papaya were exposed to prior heat stress at 40 °C. A group of plants was placed in a Gallenkamp oven for four hours; another group of plants was placed in the oven for eight hours while the third group of plants was placed in a dark cupboard for the period of eight hours. Sampling was carried out at weekly intervals starting from seven days after treatment. Plants were randomly picked from each of the three treatments. Three replicates were used for each parameter. The results obtained from the study showed that there was an increment in the shoot height, leaf area, fresh weight and dry weight from the beginning to the end of the experimental period. However, the accumulation of chlorophylls did not follow a particular pattern. The analysis of variance carried out on the data obtained showed that heat stress had a significant effect on the petiole length, shoot height, leaf length, leaf width, leaf area, fresh weight and dry weight. Heat stress, however, did not produce a significant effect on the accumulation of chlorophylls a and b and total chlorophyll.

scholarly journals 494 Evaluation of Interior Performance of Six Cultivars of Aglaonema and Dieffenbachia

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 479D-479
Author(s):  
Jianjun Chen ◽  
Dennis B. McConnell ◽  
Svoboda V. Pennisi ◽  
Cynthia A. Robinson ◽  
Russell D. Caldwell
Keyword(s):  
Tissue Culture ◽  
Leaf Area ◽  
Unit Area ◽  
Growth Parameters ◽  
Dry Weight ◽  
Fresh Leaf ◽  
Quality Ratings ◽  
Leaf Variegation ◽  
Number Of Leaves

Tissue culture plugs of Aglaonema `Cory', `Maria', and `Silver Queen' and Dieffenbachia `Panther', `Snowflake', and `Sport Lynn' were potted singly in 15-cm pots and grown in a shaded greenhouse under a photosynthetic irradiance (PI) of 100 mmol·m–2·s–1. Eight months after potting, 27 plants of each cultivar were placed in nine interior evaluation rooms under three different PI levels (three rooms per level): 4, 8, and 16 mmol·m–2·s–1. In addition, three plants of each cultivar were maintained in the original greenhouse for the duration of the experiment. Number of leaves, plant height and width were monitored monthly. Recently matured leaves were removed at 3-month intervals for 9 months for determination of fresh and dry weight, leaf area, and percentage leaf variegation. Variegated leaf area was assessed using digitized leaf images. Interior PI levels affected growth parameters, but the degree of response was cultivar-dependent. Smallest leaves developed on plants grown under 4 mmol·m–2·s–1 and largest leaves developed under 16 mmol·m–2·s–1. Leaf area of Dieffenbachia `Sport Lynn' showed the greatest response and Aglaonema `Maria' the least response to PI levels. Percentage leaf variegation of Dieffenbachia `Snowflake' was least affected and Dieffenbachia `Sport Lynn' was most affected by PI levels. Fresh leaf weight of unit area decreased as PI levels decreased from 16 to 4 mmol·m–2·s–1, however, the decrease in unit area was most pronounced in cultivars that maintained the highest quality ratings. Based on the results of this study, Aglaonema `Maria' and Dieffenbachia `Snowflake' had the most satisfactory interior performance within their respective genera.

scholarly journals Growth and nutrient uptake of coffee seedlings cultivated in nutrient solution with and without silicon addition

Revista CERES ◽  
2012 ◽  
Vol 59 (3) ◽  
pp. 392-398 ◽  
Author(s):  
Ana Catarina Monteiro Carvalho Mori da Cunha ◽  
Mila Liparize de Oliveira ◽  
Enrique Combatt Caballero ◽  
Hermínia Emília Prieto Martinez ◽  
Paulo Cézar Rezende Fontes ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Biomass Accumulation ◽  
Dry Weight ◽  
Shoot Height ◽  
Silicon Addition ◽  
Silicon Uptake ◽  
Randomized Design ◽  
Silicon Accumulation ◽  
Micronutrient Uptake ◽  
Number Of Leaves

In recent years, the application of silicon (Si) in crops, including coffee, has become a common practice. The objective of this study was to assess the silicon uptake by coffee seedlings and its effects on plant growth, water and macro and micronutrient uptake. The research was conducted using nutrient solution in a greenhouse at the Departamento de Fitotecnia da Universidade Federal de Viçosa, in a completely randomized design with two treatments (with and without silicon) and three replications. Each plot consisted of three plants grown in a 800 mL vessel containing the treatment solutions. At every three days, water consumption, the concentration of OH - and the depletion of Si and K were assessed in the nutrient solutions. After 33 days, the plants were assessed with regard to their fresh and dry weight of leaves, roots and stem, shoot height and total length of the plant (shoot and root). Number of leaves and internodes, and the content and accumulation of silicon, macro, and micronutrients were also determined. The consumption of water, the amount of potassium uptake and, biomass accumulation were greater in plants grown in solution without silicon addition. However, the concentration of OH- in the solution and the amount of silicon uptake were greater in plants grown in solution with added silicon. Silicon accumulation was greater in leaves than in stem and roots. Silicon decreased coffee plant accumulation of phosphorus, potassium, calcium, zinc, copper and iron.

scholarly journals Biofortification of calcium on mustard (Brassica juncea L.) and lettuce (Lactuca sativa) cultivated in floating hydroponic system

2020 ◽  
Vol 1 (1) ◽  
pp. 27
Author(s):  
Fitra Gustiar ◽  
Munandar Munandar ◽  
Sekar Wahyu Ningsih ◽  
Muhammad Ammar
Keyword(s):  
Brassica Juncea ◽  
Nutrient Solution ◽  
Lactuca Sativa ◽  
Plant Biomass ◽  
Dry Weight ◽  
Growth And Yield ◽  
Hydroponic System ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Nutrient Solutions

Calcium (Ca) is one of the essential macrominerals needed by the human body as a major component in the formation of bones and teeth. Calcium is fulfilled by eating calcium-rich foods, both animal and vegetable. Mustard and lettuce are vegetables that can be a source of Ca. Efforts to increase the Ca content in plants can be done through increasing the concentration of Ca given through fertilizer or in nutrient solution. However, excessive Ca application is not recommended because it will be toxic to plants. This study aims to determine the effect of various Ca concentrations in hydroponic nutrient solutions on the growth and yield of mustard vegetables (Brassica juncea L) and lettuce (Lactuca sativa L.). This study used a floating hydroponic system with a completely randomized design. Treatment of Ca concentrations of hydroponic nutrient solutions that were tried were 0, 100, 200, 300, and 400 ppm. The parameters observed were plant height, number of leaves, level of greenness of leaves, fresh and dry weight, and concentration of calcium in the leaves. The results showed that Ca treatment significantly affected the number of leaves and the level of leaf greenness. Application of 400 ppm Ca in hydroponic nutrient solution is the highest Ca concentration that could increase Ca content in mustard and lettuce plants. Application of Ca 300 ppm is the highest concentration of hydroponic nutrient solution that can increase the Ca content of plants without causing a decrease in plant biomass, and therefore the treatment of Ca 300 ppm can be used for biofortification of Ca by hydroponic in mustard and lettuce plants.

scholarly journals Limitation on Growth and Yield of Phaseolus vulgaris L. Due to Telfairia Mosaic Virus

2021 ◽  
pp. 30-38
Author(s):  
A. A. J. Mofunanya ◽  
E. A. Effa ◽  
B. A. Ngele ◽  
F. A. Akomaye ◽  
A. O. Damian
Keyword(s):  
Mosaic Virus ◽  
Leaf Area ◽  
Growth Parameters ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Shoot Height ◽  
Randomized Block Design ◽  
Net Assimilation ◽  
Number Of Seeds

Aims: To assess limitation on growth and yield of P. vulgaris due to Telfairia mosaic virus (TeMV). Study Design: The study was conducted in a randomized block design. Place and Duration: Department of Botany, University of Calabar, Calabar, Nigeria between April and August, 2016. Methodology: Seeds of P. vulgaris were obtained, sorted, planted in polyethylene bags, and on germination, inoculated with TeMV, growth and yield limitation assessed at 2, 4, 6, 8 and 12 weeks after inoculation. Results: Results showed that the virus decreased growth of P. vulgaris resulting in yield loses. Growth parameters were severely limited by TeMV with percentage reduction in Leaf area, shoot height, number of primary shoot, petiole length and number of leaves produced of 44.5%, 52.8%, 44.0%, 44.9% and 51.45 respectively at 10 weeks after inoculation (WAI). Leaf fresh weight (38.4%) and dry weight (32.3%) were significantly (P=0.05) reduced. Relative growth rate, net assimilation rate and leaf area ratio were negatively impacted by the virus with reductions of 26.5%, 36.7% at 4 WAI and 33.5% at 12 WAI respectively. Limitation on yield due to TeMV was significant (P=0.05) with reduction in pod length of 36.9%, number of pods per plant of 36.5%, number of seeds per pod of 26.5%, number of seeds per plant of 53.3% and weight of 100 seeds of 18.5%. Limitation induced on fresh and dry weight of shoot and root, pod width, seed length and seed width was not significant. Conclusion: The study confirmed the threat of TeMV necessitating control of the virus on this important legume.

scholarly journals Growth and Photosynthetic Pigments Accumulation of Jute Mallow (Corchorus olitorius Linn.) in Response to Different Levels of Magnesium Application

2017 ◽  
Vol 9 (2) ◽  
pp. 214-218
Author(s):  
Ezekiel Dare OLOWOLAJU ◽  
Olarewaju Gideon OKUNLOLA ◽  
Alimat Ololade AYODELE
Keyword(s):  
Nutrient Solution ◽  
Growth Parameters ◽  
Photosynthetic Pigment ◽  
Corchorus Olitorius ◽  
Water Control ◽  
Shoot Height ◽  
Number Of Leaves ◽  
Pigment Accumulation ◽  
Different Levels ◽  
Magnesium Source

The hereby study investigated the effect of Magnesium application at different levels on the morphological parameters and photosynthetic pigment accumulation of Corchorus olitorius. Seeds of C. olitorius were utilized in the experiment. These seeds were sown in 2 big bowls and were supplied with 200 ml of water every day until they were fully established. After three weeks of sowing, the seedlings were transplanted into plastic pots. The treatments were: distilled water (control); nutrient solution in which the concentration of Magnesium was increased by the factor of 5 (N5), nutrient solution in which the concentration of Magnesium was increased by the factor of 10 (N10) and nutrient solution lacking Magnesium source (NMg). The seedlings were then divided into 4 regimes, with each regime containing each treatment. From the results obtained, it was observed that there was a significant effect at (P≥0.05) on the Corchorus olitorius growth parameters and photosynthetic pigment accumulation among the treatments. There was an increase in the shoot height, number of leaves, number of flowers, leaf area and the photosynthetic pigment accumulation in the seedlings treated with magnesium increased by the factor of 5 (N5) than by other treatments. The control recorded the lowest values for these parameters. It can be concluded that for an optimum growth of Corchorus olitorius, it can be inferred that the plant can do well in nutrient solution having Magnesium source (at moderate level).

scholarly journals Effect of Nitrogen Nutritional Stress on Some Growth Parameters of Zea mays L. and Vigna unguiculata (L.) Walp.

2013 ◽  
Vol 5 (1) ◽  
pp. 79-85 ◽  
Author(s):  
Akinbode Foluso OLOGUNDUDU ◽  
Adekunle ADELUSI
Keyword(s):  
Zea Mays ◽  
Nutrient Solution ◽  
Vigna Unguiculata ◽  
Zea Mays L ◽  
Growth Parameters ◽  
Biomass Accumulation ◽  
Dry Weight ◽  
Nutritional Stress ◽  
Optimal Concentration ◽  
Shoot Height

This study investigated the responses of maize (Zea mays L.) and cowpea (Vigna unguiculata L. Walp.) seedlings growth parameters to nitrogen nutritional stress. This was with a view to determining whether nitrogen nutritional stress would retard or enhance maize and cowpea growth, partly, wholly or not at all through its effect on biomass accumulation and some morphological parameters. Germination of seeds was done using treated sand in sixty plastic pots. A group of the seedlings was nutrient stressed by administering 200 ml of complete nutrient solution minus nitrogen (-N) while the other groups were fed with five times (X5N) and ten times (X10N) the optimal concentration of nitrogen and the last regime was fed with full nutrient solution (FN). The effects of optimal concentration and nitrogen stress on the growth rates (as measured by their fresh and dry weight) were studied. The result of the growth analysis showed that there was increase in shoot height with supraoptimal concentrations of nitrogen treatments (X10N and X5N) while there was a decrease in shoot height with minus nitrogen (-N) regimes. The observed higher biomass (dry matter yield) under the FN regimes in both Zea mays and Vigna unguiculata were attributed to optimal nutrient assimilation rate.

Effect of rhizobacteria strains on the induction of resistance in barley genotypes against Cochliobolus sativus

2020 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
A. Adam
Keyword(s):  
Plant Growth ◽  
Pseudomonas Putida ◽  
Growth Parameters ◽  
Disease Incidence ◽  
Dry Weight ◽  
Cochliobolus Sativus ◽  
Resistance Level ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Barley Genotypes

SummaryEnhancement of the resistance level in plants by rhizobacteria has been proven in several pathosystems. This study investigated the ability of four rhizobacteria strains (Pseudomonas putida BTP1 and Bacillus subtilis Bs2500, Bs2504 and Bs2508) to promote the growth in three barley genotypes and protect them against Cochliobolus sativus. Our results demonstrated that all tested rhizobacteria strains had a protective effect on barley genotypes Arabi Abiad, Banteng and WI2291. However, P. putida BTP1 and B. subtilis Bs2508 strains were the most effective as they reduced disease incidence by 53 and 38% (mean effect), respectively. On the other hand, there were significant differences among the rhizobacteria-treated genotypes on plant growth parameters, such as wet weight, dry weight, plant height and number of leaves. Pseudomonas putida BTP1 strain was the most effective as it significantly increased plant growth by 15-32%. In addition, the susceptible genotypes Arabi Abiad and WI2291 were the most responsive to rhizobacteria. This means that these genotypes have a high potential for increase of their resistance against the pathogen and enhancement of plant growth after the application of rhizobacteria. Consequently, barley seed treatment with the tested rhizobacteria could be considered as an effective biocontrol method against C. sativus.

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