Sodininkystė ir daržininkystė - Sodininkystės ir daržininkystės institutas

a + b, and Total Carotenoid Content in Eucalyptus Leaves // Remote Sens. Environ.1998. Vol. 66. P. 111–121.3. Demmig-Adams B., Adams W.W. The role of xanthophyllscycle carotenoids in the protection of photosynthesis // Trends in plant science. 1996.Vol. 1. N 1. P. 62-73.4. Gitelson A.A. and M erzlyak M.N. Remote Sensing ofChlorophyll Concentration in Higher Plant Leaves // Adv. Space Res. 1998. Vol. 22.P. 689–692.5. Godbold D.L. Stress concepts and forest trees // Chemosphere. 1998.Vol.36. N 4-5 P. 859-864.6. Ðabajevienë G., N.Uselis, P. Duchovskis. Auksio veislësobelø fotosintezës pigmentø tyrimai ávairiø konstrukcijø intensyviuose soduose //Sodininkystë ir darþininkystë // Sodininkystë ir darþininkystë. Babtai, 2005. Vol. 24 N4. P. 57-71.7. Uselis N. Þemaûgiø obelø augumas ir produktyvumas ávairiø konstrukcijøderanèiuose soduose // Sodininkystë ir darþininkystë. Babtai, 2002. Vol.21 N 3. P. 98-112.8. Uselis N. Evolution of orchard constructions in Lithuania // Sodininkystëir darþininkystë. Babtai, 2003. Vol.22 N 1. P. 3-13.9. Uselis N. Sodo konstrukcijø átaka þemaûgiø obelø augumui // Sodininkystëir darþininkystë. Babtai, 2001. Vol.20. N1 P. 35-43.10. W ertheim S.J., De Jager A.J., Duyzen U.J.V.P.Comparison of single-row and multi-row planting systems with apple, with regard toproductivity, fruit size and colour and light conditions // Acta Hort. 1986. Vol.160. P. 243-258.11. Z arco-Tejada P.J., Miller J.R., Mohammed G.H. andNoland T.L. Chlorophyll fluorescence effects on vegetation apparent reflectance:I Leaf-level measurements and model simulation // Rem. Sens. Environ. 2000. Vol. 74P. 582-595.12. Ãàâðèëåíêî Â. Ô., Ëàäûãèíà Ì. Å., ÕàíäðîáèíàË. Ì . Áîëüøîé ïðàêòèêóì ïî ôèçèîëîãèè ðàñòåíèé. Ìîñêâà: Âûñøàÿøêîëà, 1975. 392 c.SODININKYSTË IR DARÞININKYSTË. SCIENTIFIC ARTICLES.2006. 25(1). 23-28.FORMATION OF PHOTOSINTHETIC PIGMENT SYSTEM OF CULTIVARAUKSIS ON ROOTSTOCK P 22 IN HIGH DENSITY ORCHARDS OFDIFFERENT CONSTRUCTIONSG. Ðabajevienë, N. Uselis, P. DuchovskisSummaryPhotosynthetic pigment system in the leaves of apple tree cv. Auksis on rootstockP 22 was investigated at the Lithuanian Institute of Horticulture in 2003-2005. Appletrees were trained as spindle, slender spindle, free leader axis and super spindle, superspindle V form and slender spindle V form. Orchards were planted according to plantingscheme of 3x1 m; 3x0.75 m; 3x0.5m and 3x0.25 m. Enhanced competition concerningdensities acts as minor stress for photosynthetic system. In all investigated orcharddensities and tree form combinations photosynthetic pigment content and ratio issufficient and does not limit photosynthesis. Bad weather conditions in 2004 didn’tmake any influence on chlorophyll a/b ratio of cultivar Auksis on rootstock P22.Key words: apple tree, density, orchard construction, photosynthetic pigments.28