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SODININKYSTĖ IR DARŽININKYSTĖ. SCIENTIFIC ARTICLES. 2009. <strong>28</strong>(2).The integrated impact of env<strong>ir</strong>onmental factors on photosyntheticpigments in pea plant (Pisum sativum L.)S. Sakalauskienė, A. Brazaitytė, J. Sakalauskaitė, S. Lazauskas,A. Urbonavičiūtė, G. Samuolienė, G. Šabajevienė, P. DuchovskisSummaryThe objective of this study was to investigate integrated impact of env<strong>ir</strong>onmental factorson photosynthetic pigments in pea plants (Pisum sativum L.). The vegetative experiments werecarried out in growth chambers of controlled env<strong>ir</strong>onment at Laboratory of Plant Physiology,Lithuanian Institute of Horticulturae, in 2008. Pea (Pisum sativum L.) cv. ‘Gloriosa’ was chosenas the object of this study. Pea plant response to UV-B radiation and moisture regime underdifferent carbon dioxide and temperature was investigated. Photosynthetic pigments content inplant leaves depended on all the investigated env<strong>ir</strong>onmental factors. Chlorophylls and carotenoidscontent in pea leaves varied according to the changing env<strong>ir</strong>onment conditions. Droughtand intensifying UV-B radiation had adverse impact on chlorophyll a and carotenoids contentin pea leaves. Elevated temperature and intensifying UV-B radiation, independent of carbondioxide concentration, induced the accumulation of chlorophyll b in pea plants, which weregrown in substratum of normal (40–45 %) and moderate (20–25 %) moisture. Chlorophyll aand carotenoid content in pea plants, grown in substratum of normal (40–45 %) and moderate(20–25 %) moisture under elevated temperature and carbon dioxide concentration, varied inconsiderable,but intensifying UV-B radiation induced a greater accumulation of chlorophyll b.Key words: env<strong>ir</strong>onmental factors, pea plant (Pisum sativum L.), photosynthetic pigments.145
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Table 1. Dates of blooming periods
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Average yield of apple cultivars ra
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Table 4. Harvest date, end of stora
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10. Sasnauskas A., Gelvonauskienė
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(Curran ir kt.,1995; Filella ir kt.
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yra mažesnis. Vis dėlto chlorofil
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Literatūra1. Asada T., Ogasawara M
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1 pav. Laikotarpio nuo seno sodo i
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availability of nutrients and incre
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Table 2. Amount of microelements (m
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of P was determined in the apple-tr
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References1. Adriano D. C. 1986. Tr
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SOD-1 izoformos aktyvumas yra dides
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Palyginę 2007 ir 2008 metų duomen
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action of berries of these cultivar
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1999; Litwińczuk, 2002). Duomenų
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2 pav. Kanamicino įtaka vienam eks
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eksplantus - mikroūglius ir hipoko
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12. Tang H., Ren Z., Reustle G., Kr
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Ribes, Prunus, Sambucus genčių au
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koncentracijos skatino svogūno mer
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5. Glinska S., Bartczak M., Oleksia
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Lentelė. Dirvožemio agrocheminiai
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karto daugiau negu daugiamečiai ro
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Natūrali masės netektis abiem atv
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6. Cox F. R., Kamprath E. J. 1972.
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2 pav. Humistaro ir papildomo trę
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Nuo tirtų trąšų huminių rūgš
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2. Eitminavičius L. 1998. Dirvože
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(A-L, Gost 26208-84), mineralinis a
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Pasėlio tankis turėjo silpnai nei
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Lentelės tęsinysTable continuedHR
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3. Didžiausias svogūnų suminis (
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