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Dynamika wzrostu wybranych traw w rejonie gorskim

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The investigations were conducted in 1994-1995 in the mountain area situated 650 m a.s.l. Dynamic of growth and development of two grasses Arrhenatherum elatius and Dactylis glomerata was compared with the indigenous wild growing Holcus mollis. Every year the experiments lasted for 8 weeks, which included the period of growth from the beginning of grass vegetation till their cutting maturity. The date of the vegetation start was determined in the studies and the height of plants was assessed every two weeks, and dry mass yields and daily increase of those yields were determined. Arrhenatherum elatius was the species, which started its vegetation at the earliest date and was characterised with the greatest growth dynamic while Holcus mollis was placed the last. The biggest growths of dry mass were detected at the shooting stage. It was on an average twice bigger than in the tillering and earing stages and even between 3 and 5 times bigger than in the period after earing. At the shooting stage daily increase in Arrhenatherum elatius yields were on an average twice bigger than for Dactylis glomerata and Holcus mollis.
Celem artykułu jest przedstawienie analizy stopnia wykorzystania zdolności produkcyjnych gospodarki amerykańskiej w latach 1940-2002. W analizie uwzględniono oddziaływanie prawa Okuna na dynamikę wzrostu produktu krajowego brutto (PKB).
The study comprises an analysis of the growth rate of C. albicans and C. stellatoidea strains isolated from the respiratory system and incubated on Nickerson's and Sabouraud's agar in the dark and by light. The property to form hyphae and pseudohyphae by both species was used to evaluate the growth rate. The increase in their growth allowed to isolate the stages characteristic for growth and development of most fungi. Disturbances appeared with the fungi exposed to light which is the factor definitely setting back the growth. Faster growth and development was observed with C. stellatoidea.
The studies were conducted in the years 1999-2001. Single seeds were sown directly into ground in the rows of 25 cm spacing. Three fertilization variants were used: a multicomponent fertilizer - Azofoska, the mixture of three one-component fertilizers - ammonium nitrate, triple superphosphate and ammonium sulphate; a by-product from „Dolna Odra” power-station (about 25% total N) supplemented with triple superphosphate and potassium sulphate. The weight proportions and doses of fertilizers were selected in such a wag that the NPK content was similar on all experimental objects. In order to evaluate the plant quality following parameters were considered: plant height and the number of shoots with inflorescences per plant, the weight of dried inflorescences, the number of corolla and calyx diameter. It was found that the kind of applied fertilizer significantly influenced the number of inflorescences and the quality of yield. By-product fertilization resulted in the greatest number of inflorescence shoots. The inflorescence shoots of poorest quality were obtained after Azofoska application. The quality of inflorescences shoots on other objects was similar.
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