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Wyszukujesz frazę "growth rate" wg kryterium: Temat


Tytuł:
Application of a Logistic Function to Describe the Growth of Fodder Galega
Autorzy:
Rymuza, K.
Bombik, A.
Tematy:
oriental goat’s rue
logistic function
growth equation
growth rate equation
growth rate
Pokaż więcej
Data publikacji:
2017
Powiązania:
https://bibliotekanauki.pl/articles/123385.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 125-131
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Opis:
It was attempted in the paper to describe the growth of oriental goat’s rue (Galega orientalis Lam.) growth by means of a logistic function. The studies demonstrated that the function describes empirical data well as the coefficients of determination obtained ranged between 97 to 98%, depending on the growing season. The estimated function parameters indicate that both the plant height and growth rate were conditioned by thermal conditions and moisture during the growing season. Plants had the longest stems in the year 2010 (127.9 cm), and the shortest in 2008 (105.9 cm). The maximum growth rate ranged from 2.12 to 3.97 cm per day in, respectively, 2009 and 2008. Also the inflection point, the point at which plants grew the fastest, depended on the conditions of the growing season.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of different potassium doses on growth rates and micronutrients of drought-sensitive beans
Autorzy:
Kabay, Turgay
Tematy:
drought
growth rate
micronutrients
Phaseolus vulgaris
Pokaż więcej
Data publikacji:
2022
Powiązania:
https://bibliotekanauki.pl/articles/55789356.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Elementology; 2022, 27, 2; 239-247
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of infestation with Diplostomum spp. on growth rate of Siberian sturgeon fry, Acipenser baeri Brandt
Autorzy:
Kolman, R.
Kolman, H.
Dzika, E.
Tematy:
Siberian sturgeon
growth rate
Acipenser baeri
Diplostomum
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Data publikacji:
1998
Powiązania:
https://bibliotekanauki.pl/articles/840167.pdf  Link otwiera się w nowym oknie
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indebtedness among farmers in Haryana state, India
Zadłużenie wśród rolników w stanie Hariana w Indiach
Autorzy:
Jakhar, B.
Kait, R.
Tematy:
spices
area
production
productivity
compound growth rate
Pokaż więcej
Data publikacji:
2021
Powiązania:
https://bibliotekanauki.pl/articles/2048609.pdf  Link otwiera się w nowym oknie
Źródło:
Economic and Regional Studies; 2021, 14, 3; 346-357
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Opis:
Subject and purpose of work: The study aims to evaluate the growth performance of spice crops in Haryana state of India. Materials and methods: The study is based on secondary data obtained over the period of 17 years i.e., from 2001-2002 to 2017-2018. Four spice crop – ginger, turmeric, garlic and fenugreek were selected from rabi and kharif season on the basis of the largest area sown. In order to analyze the data descriptive statistics (mean and C.V.) and CGR (compound growth rate) were employed. Results: The study revealed a significant positive growth rate of 2.20%, 4.50% and 2.20% in the area, production and productivity of ginger in the district of Panchkula, respectively. In the district of Yamunanagar, a growth rate 13.80% and 10.20% was found in the area and production of turmeric. However, a negative productivity growth rate of -3.20% was also revealed. A positive growth rate 1.50%, 3.30% and 0.17% was found in the area, production and productivity of garlic in Karnal district. In the district of Yamunanagar, a growth rate for fenugreek of 7.30% and 7.60% and 13.90% in the area, production and productivity was found. The state of Haryana recorded a significant growth of 1.7%, 2.8% and 1.1% per annum in the area, production and productivity of spice crops respectively. Conclusions: The study revealed a positive growth rate across all the selected spice crops, indicating improving prospects of spice crops in Haryana state.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consequences of human overpopulation and strategies of its prevention
Autorzy:
Ferdynus, Marcin
Tematy:
human overpopulation
population growth rate
poverty
Pokaż więcej
Data publikacji:
2018
Powiązania:
https://bibliotekanauki.pl/articles/512750.pdf  Link otwiera się w nowym oknie
Źródło:
Studia Ełckie; 2018, 20, 4; 415-
1896-6896
2353-1274
Pojawia się w:
Studia Ełckie
Opis:
The sense of threat resulting from the potential overpopulation of our globe is not a new phenomenon. As early as in ancient times, philosophers raised concerns over the excessive number of people that could disturb the stability of the state. Looking at the current demographic situation in the world, the author of the paper focuses on potential consequences of human overpopulation as well as various strategies of preventing the negative consequences of this phenomenon. The conducted analyses show that the reduction of poverty is a morally uncontroversial method of overcoming difficulties related to the growing number of inhabitants of our planet.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exchange rate volatility and trade. The case of Ukraine
Autorzy:
Popova, Olga
Jablinski, Jörg
Lukashenko, T.
Tematy:
volatility
trade
exchange rate
transitional economies
international transactions
growth rate
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Data publikacji:
2016
Powiązania:
https://bibliotekanauki.pl/articles/692551.pdf  Link otwiera się w nowym oknie
Źródło:
Research Papers in Economics and Finance; 2016, 1, 1; 17-24
2543-6430
Pojawia się w:
Research Papers in Economics and Finance
Opis:
This article demonstrates the assumptions of economic theory and its followers, the theories which stimulate research on the positive correlation between the success of the economy, its growth and the level of international trade. The empirical analysis of this paper examines the example of the exchange rate volatility and its influence on international trade on the basis of Ukraine. In the descriptive part of this study, which looks at the exchange rate volatility in Ukraine as a whole, the authors have aggregated the bilateral volatilities using trade shares as weights to obtain what is referred to as the “effective volatility” of the country’s exchange rates. It is summarized that the current situation in Ukraine is extremely difficult, and external financial support could alleviate the crisis. The time span used in the work includes the years from 1999 to 2014, with the help of which the authors have demonstrated the fluctuation and correlation between these two factors. From the graph it has been possible to make the conclusion that even if there was no significant visible correlation between trade and the exchange rate volatility, it does not mean that there is no relationship between these two factors, because there are a lot of factors which affect the level of trade.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of populations of narrow-clawed crayfish Pontastacus leptodactylus in three Belarusian lakes of the Baltic sea catchment area
Charakterystyka populacji raków wąskopłetwych Pontastacus leptodactylus w trzech białoruskich jeziorach zlewni Morza Bałtyckiego
Autorzy:
Alekhnovich, Anatoli
Tematy:
narrow-clawed crayfish
population size
survival rate
population growth rate
Pokaż więcej
Data publikacji:
2021
Powiązania:
https://bibliotekanauki.pl/articles/27322961.pdf  Link otwiera się w nowym oknie
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 19-30
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Opis:
The population characteristics of narrow-clawed crayfish were studied in three Belarusian lakes of the Baltic Sea catchment area. The life history of crayfish is 7 years. The number of larvae I, produced by all females of the population in late spring – early summer is the highest in eutrophic lake Bobrovichskoe – 26.37 ind./m2, the lowest number of larvae I is in mesotrophic lake Ginkovo – 7.09 ind./m2. The number of individuals that survive the transition period from larvae I to the age of one year is 2.80 ± 0.46%, to sexual maturity at the age of 3 years – 0.73 ± 0.15% of crayfish individuals. In the considered populations, the annual survival rate of sexually mature females in the considered populations is 50.7 ± 1.53%. The average generation time is 4.03 ± 0.13 years.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of potassium diformate in artificial feed against the growth rate of Nilem fish Osteochilus hasselti (Valenciennes, 1842) seed
Autorzy:
Yustiati, Ayi
Chaerani, Amanda Shafira
Rosidah, Rosidah
Rostini, Iis
Tematy:
Growth Rate
Nilem Fish
Osteochilus hasselti
Potassium diformate
Pokaż więcej
Data publikacji:
2019
Powiązania:
https://bibliotekanauki.pl/articles/1068623.pdf  Link otwiera się w nowym oknie
Źródło:
World Scientific News; 2019, 132; 244-255
2392-2192
Pojawia się w:
World Scientific News
Opis:
Nilem fish is an endemic fish in West Java that has the potential to be developed into superior aquaculture products. The effect of feed additives on growth can help in increasing the protein synthesis process so that the fish growth process can be optimal. This research was carried out at the Ciparanje Experimental Pond Hatchery at the Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, from October 1 2018 to November 20 2018. The research method was carried out experimentally with Completely Randomized Design (CRD). This study used four treatments which were repeated three times. The treatment in this study consisted of adding potassium diformate to artificial feed at doses of 0%, 0.1%, 0.3%, and 0.5% per 100 grams of feed. The parameters observed in this study were survival, growth rate, feed efficiency, and water quality. The analysis used was the f test and descriptive analysis. The survival rate, growth rate and feed efficiency range from 87.08% -93.75%, 2.22% -2.26% and 41.21%-47.69% respectively. The addition of potassium diformate to artificial feed up to 0.5% per 100 grams of feed can be used as a feed additive in nilem fish cultivation.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Age and growth rate of Pseudochaenichthys georgianus Norman, 1937 (family Chaenichthyidae) of the South Georgia region
Autorzy:
Chojnacki, Juliusz
Palczewski, Piotr
Tematy:
Pseudochaenichthys georgianus
age
growth rate
South Georgia
Pokaż więcej
Data publikacji:
1981
Powiązania:
https://bibliotekanauki.pl/articles/2058036.pdf  Link otwiera się w nowym oknie
Źródło:
Polish Polar Research; 1981, 2, 3-4; 145-157
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Growth Rate of Water Hyacinth (Eichhornia crassipes (Mart.) Solms) in Rawapening Lake, Central Java
Autorzy:
Prasetyo, Syarif
Anggoro, Sutrisno
Soeprobowati, Tri Retnaningsih
Tematy:
Rawapening
Eichhornia crassipes
mesocosm
relative growth rate
doubling time
Pokaż więcej
Data publikacji:
2021
Powiązania:
https://bibliotekanauki.pl/articles/1838296.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 222-231
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Opis:
Rawapening Lake is one of Indonesia’s national priority lakes that is experiencing environmental problems which are urgently required to be solved due to its functions. The decline in the environmental quality of Rawapening Lake includes sedimentation, water pollution and excess of nutrients, especially Phosphorus (P) and Nitrogen (N) into the lake that induced uncontrolled growth of aquatic plants, one of which is water hyacinth (Eichhornia crassipes (Mart.) Solms). Many activities had been done to reduce the covering of water hyacinth in Rawapening Lake that tends to increase by the time, but no significant result has been achieved. Therefore, this research was conducted in order to study the growth rate of water hyacinth with mesocosm in Rawapening Lake as a baseline to develop suitable management. There were three different sites, namely: Site I in the floating net cage area (FNCA), Rowoboni Village, Site II in the natural area of Bejalen Village which is far from the aquaculture sites, and Site III in the upper reaches of the Tuntang river, Asinan Village. The research was performed in November-December 2019 with the measurements of growth rate, addition number clump and water hyacinth covering every week. The experiment was conducted in the 1 x 1 meter mesocosm, with three replication in every site. In every mesocosm water hyacinth with similar initial weight of 160 grams and number of leaves 6-7 strands were grown in the mesocosm. On day 7 (H7) the average wet weight of water hyacinth increased by 201%. In the fourth week (H28) the average wet weight of water hyacinth increased by 788% compared to the initial weight when planted. The highest relative growth rate (RGR) value of water hyacinth was at site III (7.26%/ day), followed by Site I (7.03%/day), and Site II (6.40%/day), respectively. The doubling time (DT) value of water hyacinth at the site I was 9.9 day, site II – 10.8 day, and site III – 9.6 day. One clump of water hyacinth weighing 160 grams was able to cover 1 m2 of mesocosm within 21 days. On the basis of these results, to manage water hyacinth blooms one has to consider its growth rate.
Dostawca treści:
Biblioteka Nauki
Artykuł

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