Performance Test of Three Supporting Media during Outdoor Hydroponic Farming of Onion

2021 ◽  
Vol 1 (01) ◽  
pp. 3-8
Author(s):  
IRANI KHATUN ◽  
ISHITA HAIDER ◽  
SUBROTO K. DAS ◽  
RIYAD HOSSEN
Keyword(s):  
Natural Environment ◽  
Performance Test ◽  
Growth Parameters ◽  
Leaf Length ◽  
Chlorophyll B ◽  
Performance Parameters ◽  
Onion Plant ◽  
Chlorophyll Contents ◽  
Sand And Gravel ◽  
Weight Number

This study used different supporting media (poly-styrene sheet, sand, and gravel) during outdoor hydroponic farming of onion within a natural environment setup. Domestic onion variety Taherpuri was taken as a model onion plant. As for performance parameters, plant height, number and length of leaf, length of root, bulb weight, number of bulblet, and chlorophyll contents were recorded. The number of produced leaves was almost same, although the length of leaf and root was found to have variations in these three supporting media. The yield (weight of bulb and number of bulblet) performance was slightly higher in polystyrene sheets (7.74 g and 3 bulblets per plant) than in the others. Chlorophyll-a, Chlorophyll-b, and total chlorophylls were comparatively higher in polystyrene sheets, 0.530, 0.764, and 1.294 mg/g respectively. Other growth parameters also showed better results in the case of polystyrene sheets. Finally, the results suggested that the polystyrene sheet as a hydroponic floating bed is suitable for outdoor hydroponics for onion cultivation.

Growth and Development of Dinitroaniline-Susceptible and -Resistant Goosegrass (Eleusine indica) Biotypes Under Noncompetitive Conditions

Weed Science ◽  
1986 ◽  
Vol 34 (5) ◽  
pp. 704-710 ◽  
Author(s):  
Tim R. Murphy ◽  
Billy J. Gossett ◽  
Joe E. Toler
Keyword(s):  
Growth And Development ◽  
Growth Parameters ◽  
Flag Leaf ◽  
Dry Weight ◽  
Growing Season ◽  
Leaf Length ◽  
Relative Growth ◽  
Eleusine Indica ◽  
Flag Leaf Length ◽  
Weight Number

A comparative study of the growth and development of several populations of dinitroaniline-susceptible (DS) and -resistant (DR) goosegrass [Eleusine indica(L.) Gaertn. # ELEIN] biotypes was conducted under noncompetitive field conditions. Plant height and width, number of tillers, aboveground dry weight, relative growth rate (RGR), number of inflorescences/plant, total inflorescence dry weight, individual inflorescence dry weight, number of spicate branches/inflorescence, and flag leaf length and width were recorded periodically during the growing season. There were no significant differences between biotypes in most characteristics with the exception of total inflorescence dry weight. The DS biotype produced more total inflorescence dry weight than the DR biotype at 8 and 13 weeks after transplanting. Significant variation among DS and DR populations occurred in 37 and 33 of 56 evaluations, respectively. When variation existed within a biotype, populations exhibited broad ranges of response for the various growth parameters. With the exception of total inflorescence dry weight, DS and DR biotypes generally exhibited similar ranges of variability.

EFFECT OF DIFFERENT DOSES OF BORON ON GROWTH AND YIELD OF OFF-SEASON CAULIFLOWER (BRASSICA OLERACEA VAR. BOTRYTIS) IN ARGHAKHANCHI, NEPAL

2020 ◽  
Vol 1 (1) ◽  
pp. 12-17
Author(s):  
Srijana Pandey ◽  
Sapana Parajuli ◽  
Biplov Oli ◽  
Surya Dhungana
Keyword(s):  
Brassica Oleracea ◽  
Growth Parameters ◽  
Block Design ◽  
Leaf Length ◽  
Growth And Yield ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Benefit Cost ◽  
Different Doses

The research was conducted at Beltari Sandhikharka-10, Arghakhanchi district to study about the effect of various doses of boron on growth and yield attributing characters of cauliflower (Brassica oleracea var. botrytis) during off-season from February to June in 2020. Five treatments; B0 (control/no application), B1: 2kg/ha, B2: 4kg/ha, B3: 6kg/ha, B4: 8kg/ha which are the different doses of boron application were laid out in Randomized Complete Block Design (RCBD) with 4 replications. The growth parameters like plant height, number of leaves per plant leaf length and leaf breadth of largest leaf were recorded multiple times with 15 days interval. Days to curd initiation and Days from curd initiation to harvest were recorded by regular field observation. The yield parameters; curd weight with leaves, Marketable curd weight, average curd yield, incidence of hollowing were recorded during harvest. The economics from application of boron doses in cauliflower production was obtained in terms of cost of cultivation, gross returns, net returns, and benefit cost ratio. The result showed that the growth and yield attributing characters of cauliflower were significantly affected by application of boron in which the value of these parameters was found significantly higher in B1 followed by other treatments. The average curd yield of cauliflower in B1 was found to be 12.39 mt/ha which was 48.92% higher than that of B0 with curd yield 8.32 mt/ha. Similarly, the net return was found significantly the highest in B1 and the lowest in B0. The result showed that application of boron in the range of 2-4 kg/ha is preferred to control and higher doses in respect of both productivity and economics.

scholarly journals Ameliorative Effects of Exogenous Proline on Photosynthetic Attributes, Nutrients Uptake, and Oxidative Stresses under Cadmium in Pigeon Pea (Cajanus cajan L.)

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 796
Author(s):  
Khizar Hayat ◽  
Jafar Khan ◽  
Asif Khan ◽  
Shakir Ullah ◽  
Shahid Ali ◽  
...  
Keyword(s):  
Nutrient Uptake ◽  
Growth Traits ◽  
Growth Parameters ◽  
Thiobarbituric Acid ◽  
Pigeon Pea ◽  
Antioxidant Enzyme Activities ◽  
Chlorophyll Contents ◽  
Oxidative Stresses ◽  
Exogenous Proline ◽  
Photosynthetic Attributes

Proline plays a significant role in the plant response to stress conditions. However, its role in alleviating metal-induced stresses remains elusive. We conducted an experiment to evaluate the ameliorative role of exogenous proline on cadmium-induced inhibitory effects in pigeon pea subjected to different Cd treatments (4 and 8 mg/mL). Cadmium treatments reduced photosynthetic attributes, decreased chlorophyll contents, disturbed nutrient uptake, and affected growth traits. The elevated activity of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase), in association with relatively high contents of hydrogen peroxide, thiobarbituric acid reactive substances, electrolyte leakage, and endogenous proline, was measured. Exogenous proline application (3 and 6 mM) alleviated cadmium-induced oxidative damage. Exogenous proline increased antioxidant enzyme activities and improved photosynthetic attributes, nutrient uptake (Mg2+, Ca2+, K+), and growth parameters in cadmium-stressed pigeon pea plants. Our results reveal that proline supplementation can comprehensively alleviate the harmful effects of cadmium on pigeon pea plants.

Configuration Pump Performance Test System Design Based on Kingview

2011 ◽  
Vol 121-126 ◽  
pp. 3195-3199
Author(s):  
Li Feng Yang ◽  
Jun Yuan ◽  
Wei Na Liu ◽  
Xiu Ming Nie ◽  
Xue Liang Pei
Keyword(s):  
Experimental Data ◽  
Data Processing ◽  
System Design ◽  
Centrifugal Pump ◽  
Performance Test ◽  
Test System ◽  
Performance Parameters ◽  
Time Data ◽  
Pump Performance ◽  
Real Time Data

Use Kingview to acquire and display the centrifugal pump performance parameters for the real-time data, and will stored the collected experimental data in Access databases, using VB database read, and drawing function for the data processing and rendering performance parameters of relationship curves.

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 Begonia muricata Blume and Begonia serratipetala Irmsch durability as indoor pot plant in Eka Karya Bali Botanic Garden

2021 ◽  
Vol 26 (2) ◽  
pp. 92-97
Author(s):  
Siti Fatimah Hanum ◽  
Ayyu Rahayu ◽  
I Dewa Putu Darma
Keyword(s):  
Environmental Factors ◽  
Shelf Life ◽  
Growth Parameters ◽  
Leaf Length ◽  
Indoor Environments ◽  
Potted Plants ◽  
Foliage Plant ◽  
The Relationship ◽  
Sunlight Intensity ◽  
The Ideal

Begonia is very popular as a foliage plant and some begonia species grow up in pots. Begonia serratipetala and Begonia muricata are Indonesian begonia species that are well suited as indoor potted plants because of their leaf color and shape. In addition, the Bali Botanical Garden's landscape nursery would like to use these begonias for decoration in all buildings. However, it still needs to be studied how long the shelf life of the two begonias is in indoor environments in the highlands without air conditioning (AC). The aim of this study was to investigate the indoor shelf life of B. serratipetala and B. muricata. This research method consists of two steps. The first step was the acclimation phase and the second step was the indoor placement phase. Each begonia was repeated three times. Parameters studied included plant growth (plant height, leaves, leaf width, and leaf length) and environmental factors (sunlight intensity, air temperature, and humidity). The data were analyzed descriptively. Correlation analysis was used to determine the relationship between growth parameters and environmental factors. The result showed that both begonias (B. muricata and B. serratipetala) have similar persistence to indoor begonia species within two weeks, the ideal time for plant replacement

EVALUATION OF THE INFLUENCE OF MICROWAVE RADIATION OF MICROWAVE OVENS ON WATER AS A SUBSTRATUM FOR PLANT GROWTH

2016 ◽  
Author(s):  
Vadim Mamienko ◽  
Ingrida Chemerys
Keyword(s):  
Microwave Radiation ◽  
Growth Parameters ◽  
Morphological Changes ◽  
Test Group ◽  
Environmental Risks ◽  
Onion Plant ◽  
Clear Trend ◽  
Vegetative Organs ◽  
Living Organisms ◽  
Test Objects

To date, there is research carried out on the effects of electromagnetic radiation on living organisms, studies are conducted on substratums that were subjected to microwave radiation. This radiation comes from a common household appliance; however, the effect of this type of radiation on the vitality of organisms is poorly researched. The purpose of the current analysis is to identify the morphological changes in vegetative organs of the test objects using microwave-irradiated water as a substrate. The object of the study – the onion plant (Allium сера L.), which is perfect for objectifying environmental risks. The results showed that using the water warmed up in a microwave increased the level of oppression in the morphometric parameters. In particular, there was a clear trend of reduction of growth parameters of vegetative organs and decrease in their mass (in the test group compared to the the main one the length of the root and shoot of a plant are less than 20.5% and 27.5%, and the weight is 32.3% and 63.8% less, respectively). The correlation analysis showed that the root length is the most reliable morphometric indicator that reacts sensitively to changes in water quality caused by microwave irradiation (r = –0.9995).

scholarly journals Effects of Climate Temperature and Water Stress on Plant Growth and Accumulation of Antioxidant Compounds in Sweet Basil (Ocimum basilicum L.) Leafy Vegetable

Scientifica ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Asma Al-Huqail ◽  
Rehab M. El-Dakak ◽  
Marwa Nme Sanad ◽  
Reem H. Badr ◽  
Mohamed M. Ibrahim ◽  
...  
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Growth Parameters ◽  
Stress Conditions ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Chlorophyll Contents ◽  
Sweet Basil ◽  
Stress Markers ◽  
Response To Water

The effects of climate temperature and water stress on growth and several stress markers were investigated in sweet basil plants. Some growth parameters (shoot length and number of leaves) and photosynthetic chlorophyll contents were determined every two days during plant growth, and foliage leaf material was collected after 15 and 21 days of treatment. Both climate temperature and water stress inhibited sweet basil plant growth; especially, total chlorophyll levels were decreased significantly in response to high-temperature treatments. Under strong stresses, basil plants induced the synthesis and accumulation of glycine betaine (GB) as a secondary osmolyte, although at less content when compared with the proline content under the same stress conditions. Proline concentrations particularly increased in leaves of both basil stressed plants, accomplishing levels high enough to play a crucial role in cellular osmoregulation adjustment. Stress-induced accumulation of these antioxidant compounds was detected in sweet basil. Therefore, it appears that sweet basil-treated plants are able to synthesize antioxidant compounds under strong stress conditions. On the other hand, total sugar concentrations decreased in stress-treated basil plants. Both temperature and water stress treatments caused oxidative stress in the treated plants, as indicated by a significant increment in malondialdehyde (MDA) concentrations. An increase in total phenolic and flavonoid concentrations in response to water stress and a highly significant decrease in carotenoid concentrations in basil leaves were observed; flavonoids also increased under high climate temperature conditions.

scholarly journals Effect of Plasma Activated Water Foliar Application on Selected Growth Parameters of Maize (Zea mays L.)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3545
Author(s):  
Petr Škarpa ◽  
Daniel Klofáč ◽  
František Krčma ◽  
Jana Šimečková ◽  
Zdenka Kozáková
Keyword(s):  
Aboveground Biomass ◽  
Foliar Application ◽  
Growth Parameters ◽  
Low Cost ◽  
Co2 Assimilation ◽  
Plant Production ◽  
Chlorophyll Fluorescence Parameters ◽  
Chlorophyll Contents ◽  
Growth Optimization ◽  
Plasma Activated Water

Utilization of plasma activated water (PAW) for plant growing is mainly connected with the treatment of seeds and subsequent stimulation of their germination. A potential of PAW is its relatively simple and low-cost preparation that calls for studying its wider application in plant production. For this purpose, a pot experiment was realized in order to prove effects of the foliar PAW application on maize growth. The stepped PAW foliar application, carried out in 7-day intervals, led to provable decrease of chlorophyll contents in leaves compared to the distilled water application. The PAW application significantly increased root electrical capacitance, but it had no provable effect on weight of the aboveground biomass. Chlorophyll fluorescence parameters expressing the CO2 assimilation rate and variable fluorescence of dark-adapted leaves were provably decreased by PAW, but quantum yield of photosystem II electron transport was not influenced. A provably higher amount of nitrogen was detected in dry matter of plants treated by PAW, but contents of other macro- and micro-nutrients in the aboveground biomass of maize were not affected. Results of this pilot verification of the PAW application have shown a potential for plant growth optimization and possibility for its further utilization, especially in combination with liquid fertilizers.

scholarly journals Effects of Salt and Water Stress on Plant Growth and on Accumulation of Osmolytes and Antioxidant Compounds in Cherry Tomato

2015 ◽  
Vol 43 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Mohamad AL HASSAN ◽  
Marina MARTÍNEZ FUERTES ◽  
Francisco José RAMOS SÁNCHEZ ◽  
Oscar VICENTE ◽  
Monica BOSCAIU
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Glycine Betaine ◽  
Growth Parameters ◽  
Stem Length ◽  
Antioxidant Compounds ◽  
Cherry Tomato ◽  
Chlorophyll Contents ◽  
Stress Markers ◽  
Number Of Leaves

The effects of salt and water stress on growth and several stress markers were investigated in cherry tomato plants. Some growth parameters (stem length and number of leaves) and chlorophyll contents were determined every third day during plant growth, and leaf material was collected after 25 and 33 days of treatment. Both stresses inhibited plant growth; chlorophyll levels, however, decreased only in response to high NaCl concentrations. Proline contents largely increased in leaves of stressed plants, reaching levels high enough to play a major role in cellular osmotic adjustment. Despite reports indicating that tomato does not synthesize glycine betaine, the stress-induced accumulation of this osmolyte was detected in cherry tomato, albeit at lower concentration than that of proline. Therefore, it appears that the plants are able to synthesise glycine betaine as a secondary osmolyte under strong stress conditions. Total sugars levels, on the contrary, decreased in stress-treated plants. Both stress treatments caused secondary oxidative stress in the plants, as indicated by a significant increase in malondialdehyde (MDA) contents. Water stress led to an increase in total phenolics and flavonoid contents and a reduction of carotenoid levels in the leaves; flavonoids also increased under high salinity conditions.

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