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1

Mathematical modeling of Scots pine (Pinus sylvestris) growth process

100%
Kluza P. A., Choczewski B.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2012
|
tom 11
|
nr 4
There were formulated two general approaches to the problem under consideration indicating the experimental data sources. Mathematical symbols were introduced to denote each plant part and describe its function. There was constructed a discrete two – dimensional dynamical system that depicted Scots pine growth process followed by making suitable assumptions on its components. It has been found that this system is an iteration sequence of certain area transformation which served as the basis for the dynamical system development. Consequently, several important results like theorems, comments and charts were obtained. The obtained research results are related to variations of total dry weight Mn that grows exponentially, while linearly for n large enough. It was also demonstrated that the proportion of assimilatory to non assimilatory parts λ ̅ tends to the calculated stationary point λ1.
2

Effect of macroeconomic variables on agricultural output in Nigeria

84%
Ojo E., Olayinka M. S.
Electronic Journal of Polish Agricultural Universities. Series Economics
|
2019
|
tom 22
|
nr 4
3

Description of growth of a spring triticale at different sowing rates and row spacings, by means of logistic functions

84%
Maciorowski R., Stankowski S.
Fragmenta Agronomica
|
1995
|
tom 12
|
nr 2
4

The changes in actin content and polimerization during hepatoma Morris 5123 growth process. The effect of methotrexate

84%
Otrocka M., Nowak D., Malicka-Blaszkiewicz M.
Folia Histochemica et Cytobiologica. Supplement
|
1997
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tom 35
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nr 2
5

Fecundity of roach Rutilus rutilus [L.] populations from the coastal lakes Gardno and Lebsko

67%
Hornatkiewicz-Zbik A., Ciepielewski W.
Acta Scientiarum Polonorum. Piscaria
|
2003
|
tom 02
|
nr 2
6

Plant chitinases - regulation and function

67%
Kasprzewska A.
Cellular and Molecular Biology Letters
|
2003
|
tom 08
|
nr 3
The aim of this review is to present the current state of knowledge on plant chitinases and their regulation and function. Chitinases are up-regulated by a variety of stress conditions, both biotic and abiotic, and by such phytohormones as ethylene, jasmonic acid, and salicylic acid. Like other PR proteins, chitinases play a role in plant resistance against distinct pathogens. Moreover, by reducing the defence reaction of the plant, chitinases allow symbiotic interaction with nitrogen-fixing bacteria or mycorrhizal fungi. However, recent investigations have shown that these enzymes are also involved in numerous physiological events. The involvement of chitinases in development and growth processes is also described.
7

Effect of chilling on total antioxidant capacity and growth processes of basil [Ocimum basilicum L.] cultivars

67%
Baczek-Kwinta R., Serek B., Wator A.
Herba Polonica
|
2007
|
tom 53
|
nr 3
Total antioxidant capacity (TAC, assayed by FRAP method) of three basil (Ocimum basilicum L.) cultivars subjected to chilling stress ( 10°C) and at the recovery stage was studied. To es­timate the influence of temperature on the conditions of plants, the biométrie parameters and leaf water content were measured. It was established that chill does not influence significantly growth of basil plants and leaf water content, but decreases TAC of leaves of 'Sweet Green Genovese' and 'Kasia' cvs. plants. Plants of Polish cultivars 'Kasia' and 'Wala' have a bigger biomass production by individual plant than the Dutch cultivar 'Sweet Green Genovese'. C. var. 'Wala' has the biggest productivity. However, TAC of its leaves is the lowest, whereas 'Sweet Green Geno­vese' c.var. plants give low biomass, but of high reducing capacity.
8

The influence of cultivation in a low plastic tunnel and growth regulators on the yield of sweet basil seeds [Ocimum basilicum L.]

67%
Osinska E., Suchorska-Tropilo K.
Annals of Warsaw Agricultural University. Horticulture
|
1999
|
tom 20
9

Effects of polymorphism of growth hormone [GH], Pit-1, and leptin [LEP] genes, cow's age, lactation stage and somatic cell count on milk yield and composition of Polish Black-and-White cows

67%
Zwierzchowski L., Krzyzewski J., Strzalkowska N., Siadkowska E., Ryniewicz Z.
Animal Science Papers and Reports
|
2002
|
tom 20
|
nr 4
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