COMPARATIVE NET PHOTOSYNTHESIS OF FOUR HEVEA BRASILIENSIS CLONAL SEEDLINGSZAHAR SAMSUDDIN; IMPENS I.1978; EXPER. AGRIC.; GBR; DA. 1978; VOL. 14; NO 4; PP. 337-340; BIBL. 11 REF.Article

HYBRID SIMULATION OF A DYNAMIC MODEL FOR WATER MOVEMENT IN A SOIL-PLANT-ATMOSPHER CONTINUUM.D'HOLLANDER E; IMPENS I.1975; IN: COMPUT. SIMUL. WATER RESOUR. SYST., IFIP WORK. CONF.; GHENT; 1974; AMSTERDAM NORTH-HOLLAND; 1975, P. 349 A 360Miscellaneous

RELATIONSHIP BETWEEN LEAF AGE AND SOME CARBON DIOXIDE EXCHANGE CHARACTERISTICS OF FOUR HEVEA BRASILIENSIS MUELL. ARG. CLONESSAMSUDDIN Z; IMPENS I.1979; PHOTOSYNTHETICA; CSK; DA. 1979; VOL. 13; NO 2; PP. 208-210; BIBL. 10 REF.Article

THE DEVELOPMENT OF PHOTOSYNTHETIC RATE WITH LEAF AGE IN HEVEA BRASILIENSIS MUELL. ARG. CLONAL SEEDLINGSSAMSUDDIN Z; IMPENS I.1979; PHOTOSYNTHETICA; CSK; DA. 1979; VOL. 13; NO 3; PP. 267-270; BIBL. 11 REF.Article

ECOPASS - A MULTIVARIATE MODEL USED AS AN INDEX OF GROWTH PERFORMANCE OF POPLAR CLONESCEULEMANS R; IMPENS I.1982; FOREST SCIENCE; ISSN 0015-749X; USA; DA. 1982; VOL. 28; NO 4; PP. 862-867; BIBL. 2 P.Article

PHOTOSYNTHETIC RATES AND DIFFUSION RESISTANCES OF SEVEN HEVEA BRASILIENSIS MUELL. ARB. CLONESSAMSUDDIN Z; IMPENS I.1979; BIOL. PLANTARUM; CSK; DA. 1979; VOL. 21; NO 2; PP. 154-156; BIBL. 9 REF.Article

LE MODELE D'ANALOGIE ELECTRIQUE EN TANT QUE MOYEN D'ETUDE DE L'ASSIMILATION ET DE LA TRANSPIRATION DES PLANTES. APPLICATION AUX ECHANGES GAZEUX AU NIVEAU DE LA FEUILLE DE PEUPLIER ET LEUR LIAISON A LA CROISSANCE ET A LA PRODUCTIVITECEULEMANS R; IMPENS I.1981; REV. AGRIC.; ISSN 0035-1296; BEL; DA. 1981; VOL. 34; NO 6; PP. 1581-1593; BIBL. 2 P.Article

TEMPORAL VARIATION OF SPECIES COMPOSITION AND SPECIES DIVERSITY IN PERMANENT GRASSLAND PLOTS WITH DIFFERENT FERTILIZER TREATMENTSVAN HECKE P; IMPENS I; BEHAEGHE TJ et al.1981; SYMPOSIUM OF THE INTERNATIONAL SOCIETY FOR VEGETATION SCIENCE/1980/MONTPELLIER; NLD; W. JUNK; DA. 1981; PP. 221-232; BIBL. 1 P.Conference Paper

TEMPORAL VARIATION OF SPECIES COMPOSITION AND SPECIES DIVERSITY IN PERMANENT GRASSLAND PLOTS WITH DIFFERENT FERTILIZER TREATMENTSVAN HECKE P; IMPENS I; BEHAEGHE TJ et al.1981; VEGETATIO; ISSN 0042-3106; NLD; DA. 1981; VOL. 46-47; PP. 221-232; BIBL. 28 REF.Article

INFLUENCE OF FERTILIZATION LEVEL ON GAS EXCHANGE, STRUCTURAL, AND GROWTH CHARACTERISTICS OF AZALEACEULEMANS R; GABRIELS R; IMPENS I et al.1982; HORTSCIENCE; ISSN 0018-5345; USA; DA. 1982; VOL. 17; NO 1; PP. 43-44; BIBL. 7 REF.Article

COMPARATIVE STUDY OF PHOLOSYNTHESIS, TRANSPIRATION, DIFFUSION RESISTANCES AND WATER-USE EFFICIENCY OF TWO AZALEA CULTIVARSCEULEMANS R; IMPENS I; GABRIELS R et al.1980; SCIENTIA HORTIC.; NLD; DA. 1980; VOL. 13; NO 3; PP. 283-288; BIBL. 22 REF.Article

FACTORS DETERMINING THE LONGWAVE RADIATION EXCHANGE OVER NATURAL SURFACESWOUTERS DS; KEPPENS H; IMPENS I et al.1980; ARCH. METEOROL. GEOPHYS. BIOKLIMATOL.; AUT; DA. 1980; VOL. 28; NO 1-2; PP. 63-71; ABS. GER; BIBL. 10 REF.Article

COMPARATIVE STUDY OF LEAF WATER POTENTIAL, DIFFUSION RESISTANCE AND TRANSPIRATION OF AZAELA CULTIVARS SUBJECTED TO WATER STRESSCEULEMANS R; IMPENS I; GABRIELS R et al.1979; HORTSCIENCE; USA; DA. 1979; VOL. 14; NO 4; PP. 507-509; BIBL. 18 REF.Article

UV-B increases the harvest index of bean (Phaseolus vulgaris L.)DECKMYN, G; IMPENS, I.Plant, cell and environment (Print). 1995, Vol 18, Num 12, pp 1426-1433, issn 0140-7791Article

RIBULOSE-1,5-BIPHOSPHATE CARBOXYLASE ACTIVITY CHLOROPHYLL AND PROTEIN CONCENTRATIONS IN DIFFERENT POPULUS CLONESCEULEMANS R; VAN ASSCHE F; IMPENS I et al.1982; BIOL. PLANT.; ISSN 0006-3134; CSK; DA. 1982; VOL. 24; NO 1; PP. 57-62; BIBL. 24 REF.Article

WATER MOVEMENT IN THE SOIL-POPLAR-ATMOSPHERE SYSTEM. II. COMPARATIVE STUDY OF THE TRANSPIRATION REGULATION DURING WATER STRESS SITUATIONS IN FOUR DIFFERENT POPLAR CLONES.CEULEMANS R; IMPENS I; LEMEUR R et al.1978; OECOL. PLANT.; FR.; DA. 1978; VOL. 13; NO 2; PP. 139-146; ABS. FR.; BIBL. 1 P. 1/2Article

Generating random percolation clustersBOGAERT, J; IMPENS, I.Applied mathematics and computation. 1998, Vol 91, Num 2-3, pp 197-208, issn 0096-3003Article

The ratio UV-B/photosynthetically active radiation (PAR) determines the sensitivity of rye to increased UV-B radiationDECKMYN, G; IMPENS, I.Environmental and experimental botany. 1997, Vol 37, Num 1, pp 3-12, issn 0098-8472Article

Effects of elevated CO₂ concentration and climate-warming on photosynthesis during winter in Lolium perenneNIJS, I; IMPENS, I.Journal of experimental botany. 1996, Vol 47, Num 300, pp 915-924, issn 0022-0957Article

A procedural approach for studying the radiation regime of infinite and truncated foliage spaces. I: Theoretical considerationsMYNENI, R. B; IMPENS, I.Agricultural and forest meteorology. 1985, Vol 33, Num 4, pp 323-337, issn 0168-1923Article

A procedural approach for studying the radiation regime of infinite and truncated foliage spaces. II: Experimental results and discussionMYNENI, R. B; IMPENS, I.Agricultural and forest meteorology. 1985, Vol 34, Num 1, pp 3-16, issn 0168-1923Article

WATER MOVEMENT IN THE SOIL-POPLAR-ATMOSPHERE SYSTEM. I. COMPARATIVE STUDY OF STOMATAL MORPHOLOGY AND ANATOMY AND THE INFLUENCE OF STOMATAL DENSITY AND DIMENSIONS OF THE LEAF DIFFUSION CHARACTERISTICS IN DIFFERENT POPLAR CLONES.CEULEMANS R; IMPENS I; LEMEUR R et al.1978; OECOL. PLANT.; FR.; DA. 1978; VOL. 13; NO 1; PP. 1-12; ABS. FR.; BIBL. 1 P. 1/2Article

The importance of the ratio UV-B/photosynthetic active radiation (PAR) during leaf development as determining factor of plant sensitivity to increased UV-B irradiance : effects on growth, gas exchange and pigmentation of beam plants (Phaseolus vulgaris cv. label)DECKMYN, G; MARTENS, C; IMPENS, I et al.Plant, cell and environment (Print). 1994, Vol 17, Num 3, pp 295-301, issn 0140-7791Article

Diurnal changes in the response of canopy photosynthetic rate to elevated CO₂ in a coupled temperature-light environmentNIJS, I; IMPENS, I; VAN HECKE, P et al.Photosynthesis research. 1992, Vol 32, Num 2, pp 121-130, issn 0166-8595Article

Stomatal response of hybrid poplar to incident light, sudden darkening and leaf excisionCEULEMANS, R; HINCKLEY, T. M; IMPENS, I et al.Physiologia Plantarum (København. 1948). 1989, Vol 75, Num 2, pp 174-182, issn 0031-9317Article