Results 261 to 270 of about 54,590 (290)

Water Potential and Leaf Elongation in Radiata Pine and Wheat

Physiologia Plantarum, 1976
AbstractThe rate of leaf elongation in radiata pine (Pinus radiata) and wheat seedlings was closely related to the osmotic potential of the rooting solution. Sudden stress application and removal treatments caused immediate changes in the leaf elongation rate and a new steady‐state rate independent of the old was quickly established.
R. SANDS, R. L. CORRELL
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The effect of age on nitrogen stress and its relation to leaf nitrogen and leaf elongation in a grass

Plant and Soil, 1966
Nitrogen stress inLolium rigidum was measured 5 times during the 8 weeks following emergence. Symptoms of nitrogen deficiency appeared when the stress was greater than 40 per cent. Stresses lower than this were accurately estimated either by the concentration of total nitrogen, or free ninhydrin nitrogen in the youngest fully expanded leaf, or by a ...
E. A. N. Greenwood, Z. V. Titmanis
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Epidermal cell division and cell elongation in two Aegilops species with contrasting leaf elongation rates

Functional Plant Biology, 2003
The 2-fold difference in final length of leaf number three on the main stem between the fast-growing Aegilops tauschii L. and the slow-growing Aegilops caudata L. is correlated with a difference in leaf elongation rate (LER), and not in duration of leaf elongation.
Lieve, Bultynck, Fabio, Fiorani, Elizabeth Van, Volkenburgh, Hans, Lambers   +3 more
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Endogenous gibberellins in Lolium perenne and influence of defoliation on their contents in elongating leaf bases and in leaf sheaths

Physiologia Plantarum, 2001
Gibberellin (GA) levels in leaf sheaths and in elongating leaf bases of perennial ryegrass (Lolium perenne L. cv. Bravo) were monitored in undefoliated and defoliated plants. Nine C‐13‐hydroxylated GAs (GA8, GA97, GA29, GA1, GA20, GA44, GA19, GA17, GA53) and one C‐13‐non‐hydroxylated GA (GA9) were identified by combined gas chromatography‐mass ...
Morvan-Bertrand, A., Ernsten, A., Lindgard, B., Koshioka, M., Le Saos, J., Boucaud, Johann, Prudhomme, M.P., Junttila, O.   +7 more
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Biophysical limitation of leaf cell elongation in source-reduced barley

Planta, 2002
The biophysical basis of reduced leaf elongation rate in source-reduced barley ( Hordeum vulgare L. cv Golf) was studied. Reduction in source strength was achieved by removing the blade of leaves 1 and 2 at the time leaf 3 had emerged 3.0-6.7 cm from the encircling sheath.
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Elongation growth in leaf blades ofChloris gayana under saline conditions

Journal of Plant Physiology, 2003
In Chloris gayana, salinity-associated yield decreases are due mainly to leaf area reductions. To understand the physiological basis for such reduction, the effects of salinity were studied on the spatial and temporal distribution of extension in the intercalary meristem at the leaf base, and on hydraulic conductance in that zone. C. gayana plants were
Leandro, Ortega, Edith, Taleisnik
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Spatial heterogeneity in stomatal features during leaf elongation: an analysis using Rosa hybrida

Functional Plant Biology, 2015
Within-leaf heterogeneity in stomatal traits poses a key uncertainty in determining a representative value for the whole leaf. Accounting for this heterogeneity, we studied stomatal initiation on expanding leaves and estimated stomatal conductance (gs) of mature leaves. The entire lamina was evaluated at four percentages of full leaflet elongation (FLE;
Fanourakis, D., Heuvelink, E., Carvalho, S.M.P.   +2 more
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Specific Leaf Weight in Zones of Cell Division, Elongation and Maturation in Tall Fescue Leaf Blades

Annals of Botany, 1987
Patterns of change in specific leaf weight (SLW), water-soluble carbohydrate (WSC) content and leaf width were used to delineate the region of secondary cell wall accumulation, and determine the rate of increase in structural material along a developing leaf blade of tall fescue (Festuca arundinacea Schreb.).
MacAdam, Jennifer W., Nelson, C. J.
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The Effect of Cell Elongation on Leaf Anatomy of Poa alpina

Botanical Gazette, 1970
The hypothesis (Slade 1957) that the larger cells and intercellular spaces in the spongy mesophyll and the wider spacing of veinlets in leaves grown in deep shade might be due to differences in cell extension rather than in meristematic growth has been tested on leaves from Poa alpina plants in which cell extension has been stimulated by shade and/or ...
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Leaf recruitment and elongation: an adaptive response to flooding in Villarsia reniformis

Aquatic Botany, 2001
Abstract Villarsia reniformis (Menyanthaceae) responds to flooding by rapid leaf elongation and continual recruitment of young, submerged leaves (4.3–6.5 per week). Leaf production is influenced by nutrient availability and water depth. Leaves are submerged and die as the water level rises, but are replaced by younger leaves able to broach the ...
Cooling, M., Ganf, G., Walker, K.
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