scholarly journals Effectiveness of K2siO3 on growth and physio-biochemical changes of banana seedlings grown under tropical climate as influenced by application frequency

2021 ◽  
Vol 948 (1) ◽  
pp. 012011
Author(s):  
M Z Aiman Takrim ◽  
S S Zaharah ◽  
M R Ismail ◽  
S Kasim ◽  
K Ahmad
Keyword(s):  
Growth Trait ◽  
Experimental Period ◽  
Tropical Climate ◽  
Biochemical Changes ◽  
Scale Production ◽  
Optimum Frequency ◽  
Climate Conditions ◽  
Slow Growth Rate ◽  
Mda Content ◽  
Application Frequency

Abstract Slow growth rate of tissue-cultured banana seedling’s performance and high post-transplanting mortality rate are commonly due to low rate mineral content in the soil, climate change and soil-borne disease. This study aimed to evaluate the effects of potassium silicate (K2SiO3) on growth, physio-biochemical changes on Berangan banana seedlings grown under tropical climate conditions. The experiment was conducted under a rain shelter and all treatments were arranged in a randomized complete block (RCBD) design. The plants were soil drenched with K2SiO3 at constant 0.0901 M by 25 mL/plant after two weeks of transplanting with different frequencies application: 0-day interval (DI) served as control, 7 DI (12×), 15 DI (6×) and 30 DI (3×) throughout three months experimental period. Results showed that K2SiO3 (13% SiO2, 20% K2O) applied on healthy banana seedlings at 15 days interval significantly improved morphological growth trait (plant height, pseudo-stem diameter size, total leaf area, root length, and dry matter biomass) and physiological traits characters, but reduced proline and MDA content in plant tissues of banana. Hence, the results confirmed that each banana seedlings that received K2SiO3 at optimum frequency rate (15DI) had successfully enhanced the growth performance with better quality of Berangan banana seedlings at commercial-scale production.

scholarly journals Physiological parameters of male goats raised under tropical climate conditions (Brazil)

2020 ◽  
Vol 9 (9) ◽  
pp. e768997698
Author(s):  
Julio Cesar Oliveira Dias ◽  
Cristina Mattos Veloso ◽  
Madriano Christilis da Rocha Santos ◽  
Carlos Thiago Silveira Alvim Mendes de Oliveira ◽  
Camila Oliveira Silveira
Keyword(s):  
Complete Blood Count ◽  
Hematological Parameters ◽  
Experimental Period ◽  
Tropical Climate ◽  
Physiological Parameters ◽  
Climate Conditions ◽  
Mean Values ◽  
Humidity Index ◽  
Globe Temperature ◽  
Hormonal Levels

This study evaluated the adaptive capacity and variations in physiological parameters of four male goats originate from a temperate region (Alpine breed) in a tropical climate over twelve months. The ambient temperature, relative humidity, and temperature via a black globe thermometer were evaluated to calculate the black globe temperature and humidity index; they were collected five times during the day, three times during the week, and during the four annual seasons. Every fortnight throughout the experimental period, respiratory and heart rates as well as rectal and surface temperatures of the animals were measured in the morning, and blood samples were acquired for hormonal levels (cortisol, T3, and T4) and complete blood count. There was a difference between the mean values of surface temperature, respiratory rate, hormones, and some hematological parameters (total protein and monocytes) between the seasons (P<0.05). However, no differences were observed in cases of heat stress, based on the fact that physiological parameters were within normal and expected limits for goats. Thus, it is concluded that the male goats of the Alpine breed, when reared intensively, maintain homeothermia and are greatly adaptable to the conditions of the tropical climate.

Review of PCM types and suggestions for an applicable cascaded PCM for passive PV module cooling under tropical climate conditions

2021 ◽  
Vol 293 ◽  
pp. 126065
Author(s):  
Karthikeyan Velmurugan ◽  
Sunilkumar Kumarasamy ◽  
Tanakorn Wongwuttanasatian ◽  
Varinrumpai Seithtanabutara
Keyword(s):  
Tropical Climate ◽  
Climate Conditions ◽  
Pv Module

Thermo-economic analysis of a flat solar collector with a phase changing material under tropical climate conditions: Residential and industrial case

2021 ◽  
Vol 182 ◽  
pp. 116082
Author(s):  
A.J. Cetina-Quiñones ◽  
J. Xamán ◽  
A. Bassam ◽  
M.A. Escalante Soberanis ◽  
I. Perez-Quintana
Keyword(s):  
Economic Analysis ◽  
Solar Collector ◽  
Tropical Climate ◽  
Climate Conditions

Destructive Activity of the Micromycetes Isolated from Materials under Tropical Climate Conditions on Selective Nutrient Media

2021 ◽  
Vol 2021 (12) ◽  
pp. 1632-1638
Author(s):  
A. A. Krivushina ◽  
T. V. Bobyreva ◽  
D. N. Mosunova ◽  
A. A. Novikov
Keyword(s):  
Tropical Climate ◽  
Nutrient Media ◽  
Climate Conditions

Modeling and characterization of a grid-connected photovoltaic system under tropical climate conditions

2018 ◽  
Vol 82 ◽  
pp. 2094-2105 ◽  
Author(s):  
Ali M. Humada ◽  
Ashty M. Aaref ◽  
Hussein M. Hamada ◽  
Mohd Herwan Sulaiman ◽  
Nowshad Amin ◽  
...  
Keyword(s):  
Tropical Climate ◽  
Photovoltaic System ◽  
Climate Conditions

scholarly journals THERMAL COMFORT INVESTIGATION ON HOLY MOSQUE IN BANDUNG Case Study : Lautze 2 Mosque Bandung

2020 ◽  
Vol 2 (1) ◽  
pp. 82
Author(s):  
Agung Prabowo
Keyword(s):  
Thermal Comfort ◽  
Quantitative Research ◽  
Thermal Environment ◽  
Tropical Climate ◽  
Air Humidity ◽  
Air Velocity ◽  
Related Factors ◽  
Climate Conditions ◽  
Comfort Index ◽  
Main Factors

Abstract -Thermal comfort is a state of mind that expresses satisfaction with the thermal environment. There are two main categories in the effort to obtain a comfort index; empirical and analytical. Empirical is based on social surveys, while analysis is based on the physics principle of heat flow.Bandung city is one of the historical cities in Indonesia which has many historical heritage buidings. One of them which is commonly known as colonial buildings in Bandung is Lautze 2 Mosque, located at Tamblong Street in the city center of Bandung. This research was conducted to analyze the thermal comfort in the Lautze 2 Mosque Bandung. The analytical method used in this study is a quantitative research method by measuring the main factors namely air temperature, air humidity and air velocity. The main factors become obstacles to get thermal comfort data at the Lautze 2 Mosque Bandung is the location of buildings located in areas with tropical climate conditions with high air temperatures, high air humidity, and low air velocitys.The research conclude that thermal comfort in the Lautze 2 Mosque Bandung building can be categorized as uncomfortable, it can be seen from the measurement results of related factors, namely the temperature and humidity that exceeds the comfort limit and the low air velocity in the building becomes an obstacle to obtain thermal comfort. Keywords: colonial buildings, mosque, thermal comfort, tropical climate.

scholarly journals Development of Asphalt Pavement Temperature Model for Tropical Climate Conditions in West Bali Region

2015 ◽  
Vol 125 ◽  
pp. 474-480 ◽  
Author(s):  
I. Made Agus Ariawan ◽  
Bambang Sugeng Subagio ◽  
Bagus Hario Setiadji
Keyword(s):  
Asphalt Pavement ◽  
Tropical Climate ◽  
Temperature Model ◽  
Climate Conditions ◽  
Pavement Temperature

Heat loss efficiency and HSPs gene expression of Nellore cows in tropical climate conditions

2018 ◽  
Vol 63 (11) ◽  
pp. 1475-1486 ◽  
Author(s):  
Henrique Barbosa Hooper ◽  
Cristiane Gonçalves Titto ◽  
Angela Maria Gonella-Diaza ◽  
Fábio Luís Henrique ◽  
Lina Fernanda Pulido-Rodríguez ◽  
...  
Keyword(s):  
Gene Expression ◽  
Heat Loss ◽  
Tropical Climate ◽  
Climate Conditions ◽  
Loss Efficiency

scholarly journals Spiked pepper: selection of clones toward cropping on the edaphoclimatic conditions from Belém, Brazil

2010 ◽  
Vol 28 (4) ◽  
pp. 418-423
Author(s):  
José Maria D Gaia ◽  
Milton Guilherme da C Mota ◽  
Carmen Célia C da Conceição ◽  
José Guilherme S Maia
Keyword(s):  
Essential Oil ◽  
Production Systems ◽  
Biological Properties ◽  
Leaf Length ◽  
High Yield ◽  
Small Scale ◽  
Scale Production ◽  
Fresh Matter ◽  
Climate Conditions ◽  
Branch Plant

Spiked pepper presents a high yield of essential oil with useful biological properties for human health and agriculture. In order to evaluate the morphoagronomic variability and, afterwards, to select genotypes for plant breeding and cultivation, thirteen clones were propagated. Thus, spiked pepper cuttings were rooted under greenhouse, transferred to a nursery and, afterwards, planted at the experimental area. The evaluations were carried out in two harvest seasons. The evaluated morphoagronomic traits were number of leaves per branch, leaf length, leaf width, diameter of the oldest branch, plant height, number of orthotropic branches, number of plagiotropic branches, internode length, fresh and dry matter, yield of essential oil and dillapiole content. The analysis of variance and the Scott-Knott test were utilized for data analysis and comparisons among clones and parentals were carried out through genetic and experimental variation coefficients. Fresh matter (first season), number of orthotropic branches and diameter of the the oldest branch (second season) presented variability. The Scott-Knott test detected variability for fresh matter, dillapiole content (first season), diameter of the oldest branch and number of orthotropic branches (second season). The yield of essential oil and the dillapiole content were higher for the clones than for the parentals. In conclusion, the clones showed adaptability to the soil and climate conditions of Belém, Pará State, Brazil; the harvest time influenced the oil yield and the dillapiole content; the variance analysis evidenced uniformity and productivity for the evaluated clones, suggesting they can be recommended for cultivation on small-scale production systems in this location.

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