Fritz Lenz - Academia.edu (original) (raw)
Papers by Fritz Lenz
Trees, 1993
... or environmental conditions preclude calculation of carbon budgets from data published for in... more ... or environmental conditions preclude calculation of carbon budgets from data published for individual plant organs (Avery 1977; Barden 1978). ... budgets of apple trees using photosynthesis and respiration measurements and a tree chamber in the orchard continu-ally over a ...
further increases in soluble sugars after harvest are insignificant (Lallu, 1990). Neither the co... more further increases in soluble sugars after harvest are insignificant (Lallu, 1990). Neither the concentration of fruit sugars nor the concentration of fruit minerals was affected by irrigation treatments. Mean sucrose, glucose, fructose, and sorbitol concen
Plant Regulation and World Agriculture, 1979
Investigations of the effects of fruit (mainly citrus) on growth, flower formation, water consump... more Investigations of the effects of fruit (mainly citrus) on growth, flower formation, water consumption, nutrient uptake, photosynthesis, and respiration of plants are reviewed. The main emphasis is on photosynthetic efficiency of leaves as affected and perhaps regulated by fruit.
Zeitschrift für Induktive Abstammungs- und Vererbungslehre, 1921
Human Genetics, 1972
Some men are thought to be protanopes if studied with Nagel's anomaloseope, yet they are not only... more Some men are thought to be protanopes if studied with Nagel's anomaloseope, yet they are not only able to reeognise in everyday life red clothing immediately as red, but also see traffic lights as red and green, respectively. Men affected with this formerly mistaken variety of colour vision differ from those with normal colour vision by their higher threshold of red-green perception. The variety is X-linked. The three-colour theory ca.nnot be reconciled with the existence of genuine redgreenblindness, in which the only basic eolours seen are yellow and blue. Persons with normal eolour vision should not be called normal trichromates, as they perceive four basic colours red, yellow, green and blue. They are tetraehromatic. This term is unnecessary, however. As the three-coloar theory and the expression "trichromate" are obsolete, it is sHfficient to refer to "normal colour vision". Zusammen/assung. Es gibt N~nner, die mit dem Nagelschen Anomaloskop untersueht als ,,protanop" befunden and daraufhin fiir ,,rotgriinblind" erkl~rt werden, die aber im tg.gliehen Leben nieht nur rote Kleidungsstficke unmittelbar als rot erkennen, sondern aueh Verkehrsliehter ohne weiteres als rot bzw. griin wahruehmen. Die Tr~ger dieser bisher verkannten Variet~t des Farbensinns unterscheiden sieh yon voll farbent/ichtigen M~nnern dureh eine wesentlich hShere Schwelle ihres Rotgriinsinns; sie ist X-gekoppelt erblich. Die ,,Dreifarbentheorie" ist unhaltbar, well sie mit dem Vorkommen eehter Rotgrfinblindheir, bei der als Grundfarben nur Gelb und Blan wa.hrgenommen werden, nnvereinbar ist. Normal Farbent/iehtige sollte man daher nicht wie bisher ,,normale Trichromate" nennen; denn sie kSnnen vier Grundfarben (Rot, Gelb, Griin, Blau) wahrnehmen; sie sind also Tetrachromate. Ein solcher Terminus erfibrigt sieh abet. Nachdem die ,,Dreifarbentheorie" und mit ihr die ,,Trichromaten" crledigt sind, genfigt die Bezeichnung ,,normal Farbentiichtiqe". Die bisher verkannte Variet~t des Farbensinns ist nieht so selten, dab man ihr nieht gelegentlieh begegnen w/irde. Eine besonders eindrueksvolle Begegnung habe ieh in der Sommerfrische 1970 gehabt. Mir stand ein blumenreieher Garten zum Spazierengehen zur Verffigung. Es bl/ihten gerade einige orangerote Feuerlilien, viele dunkelrote gefiillte Rosen und aueh hellere rosarote. Ieh sagte dem Eigentfimer des Gartens, seine roten Blumen erfreuten mieh besonders, weil ieh naeh augen/irztliehem Urteil Rot nieht als Farbe wahrnehmen kSnne. Zu meiner Uberrasehung antwortete er mir, aueh sein Augenarzt habe ihm gesagt, es sei vSllig unmSglich, daft er Rot als Farbe sehen kSnne ; seitdem habe er kein Yertrauen mehr in dessen Wissensehaftliehkeit.
The American Journal of Psychology, 1933
JOURNAL-AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE, 1996
Table 2. Maximum leaf area indices (LAIs) of different shoot types in the fourteenth year of four... more Table 2. Maximum leaf area indices (LAIs) of different shoot types in the fourteenth year of four 'Empire' apple production systems. LAI Production Spurs Short shoot lateral Extension shoot system Fruiting Nonfruiting Lateral ...
Scientia Horticulturae, 1999
Scientia Horticulturae, 1999
Environmental and Experimental Botany, 1994
ABSTRACT
Trees, 1993
... or environmental conditions preclude calculation of carbon budgets from data published for in... more ... or environmental conditions preclude calculation of carbon budgets from data published for individual plant organs (Avery 1977; Barden 1978). ... budgets of apple trees using photosynthesis and respiration measurements and a tree chamber in the orchard continu-ally over a ...
Scientia Horticulturae, 1999
One-month old, rooted, semi-hardwood cutting plants of pepino cv. Xotus in sand-potted culture we... more One-month old, rooted, semi-hardwood cutting plants of pepino cv. Xotus in sand-potted culture were treated with 200 ml Hoagland nutrient solution with or without additional 25 mM NaCl twice a week for 2 months, and exposed to 350 AE 10, 700 AE 10 or 1050 AE 10 ppm CO 2 in controlled environment chambers during the last month of the experiment. NaCl salinity in the rhizosphere reduced growth of all the organs, but raised stem dry weight ratio and root dry weight ratio. In contrast, atmospheric CO 2 enrichment increased plant and fruit growth. Leaf dry weight ratio and fruit dry weight ratio rose, but stem dry weight ratio and root dry weight ratio decreased at high CO 2 levels. Daily expansion rate of leaf area, growth rate of side-shoot length, rate of plant dry mass production, and increased rate of fresh fruit weight decreased due to NaCl stress, but increased with CO 2 enrichment. Side-shoot diameter rose, whereas specific leaf area, leaf area ratio, and sideshoot dry weight ratio declined under both NaCl-stressed and CO 2 -enriched conditions. In comparison with the 350 ppm CO 2 treatment without NaCl salinity in the rhizosphere, net assimilation rate and relative growth rate of plants were reduced by 8±13% and 16±32% due to NaCl salinity, and enhanced by 22±23% and 42±64% at 700 ppm CO 2 , and by 36±44% and 64±101% at 1050 pm CO 2 , respectively. The simultaneous treatments of NaCl salinity and high CO 2 resulted in indefinite effects on vegetative and reproductive growth as well as on dry mass production of different plant organs. Nevertheless, the negative impacts of NaCl stress on plant growth and fruit Scientia Horticulturae 81 (1999) 25±41 : S 0 3 0 4 -4 2 3 8 ( 9 8 ) 0 0 2 6 4 -7 yield diminished at high CO 2 levels. Atmospheric CO 2 enrichment increased the tolerance of pepino to NaCl salinity in the root medium. #
Plant, Cell and Environment, 1989
Abstract. In addition to photosynthesis as in the leaf, fruit possess a system which refixes CO 2... more Abstract. In addition to photosynthesis as in the leaf, fruit possess a system which refixes CO 2 from the mitochondrial respiration of predominantly imported carbon. This pathway produces malate by the action of phosphoenolpyruvate carboxylase, PEPC, (EC 4.1.1.31) and ...
Trees, 1993
... or environmental conditions preclude calculation of carbon budgets from data published for in... more ... or environmental conditions preclude calculation of carbon budgets from data published for individual plant organs (Avery 1977; Barden 1978). ... budgets of apple trees using photosynthesis and respiration measurements and a tree chamber in the orchard continu-ally over a ...
further increases in soluble sugars after harvest are insignificant (Lallu, 1990). Neither the co... more further increases in soluble sugars after harvest are insignificant (Lallu, 1990). Neither the concentration of fruit sugars nor the concentration of fruit minerals was affected by irrigation treatments. Mean sucrose, glucose, fructose, and sorbitol concen
Plant Regulation and World Agriculture, 1979
Investigations of the effects of fruit (mainly citrus) on growth, flower formation, water consump... more Investigations of the effects of fruit (mainly citrus) on growth, flower formation, water consumption, nutrient uptake, photosynthesis, and respiration of plants are reviewed. The main emphasis is on photosynthetic efficiency of leaves as affected and perhaps regulated by fruit.
Zeitschrift für Induktive Abstammungs- und Vererbungslehre, 1921
Human Genetics, 1972
Some men are thought to be protanopes if studied with Nagel's anomaloseope, yet they are not only... more Some men are thought to be protanopes if studied with Nagel's anomaloseope, yet they are not only able to reeognise in everyday life red clothing immediately as red, but also see traffic lights as red and green, respectively. Men affected with this formerly mistaken variety of colour vision differ from those with normal colour vision by their higher threshold of red-green perception. The variety is X-linked. The three-colour theory ca.nnot be reconciled with the existence of genuine redgreenblindness, in which the only basic eolours seen are yellow and blue. Persons with normal eolour vision should not be called normal trichromates, as they perceive four basic colours red, yellow, green and blue. They are tetraehromatic. This term is unnecessary, however. As the three-coloar theory and the expression "trichromate" are obsolete, it is sHfficient to refer to "normal colour vision". Zusammen/assung. Es gibt N~nner, die mit dem Nagelschen Anomaloskop untersueht als ,,protanop" befunden and daraufhin fiir ,,rotgriinblind" erkl~rt werden, die aber im tg.gliehen Leben nieht nur rote Kleidungsstficke unmittelbar als rot erkennen, sondern aueh Verkehrsliehter ohne weiteres als rot bzw. griin wahruehmen. Die Tr~ger dieser bisher verkannten Variet~t des Farbensinns unterscheiden sieh yon voll farbent/ichtigen M~nnern dureh eine wesentlich hShere Schwelle ihres Rotgriinsinns; sie ist X-gekoppelt erblich. Die ,,Dreifarbentheorie" ist unhaltbar, well sie mit dem Vorkommen eehter Rotgrfinblindheir, bei der als Grundfarben nur Gelb und Blan wa.hrgenommen werden, nnvereinbar ist. Normal Farbent/iehtige sollte man daher nicht wie bisher ,,normale Trichromate" nennen; denn sie kSnnen vier Grundfarben (Rot, Gelb, Griin, Blau) wahrnehmen; sie sind also Tetrachromate. Ein solcher Terminus erfibrigt sieh abet. Nachdem die ,,Dreifarbentheorie" und mit ihr die ,,Trichromaten" crledigt sind, genfigt die Bezeichnung ,,normal Farbentiichtiqe". Die bisher verkannte Variet~t des Farbensinns ist nieht so selten, dab man ihr nieht gelegentlieh begegnen w/irde. Eine besonders eindrueksvolle Begegnung habe ieh in der Sommerfrische 1970 gehabt. Mir stand ein blumenreieher Garten zum Spazierengehen zur Verffigung. Es bl/ihten gerade einige orangerote Feuerlilien, viele dunkelrote gefiillte Rosen und aueh hellere rosarote. Ieh sagte dem Eigentfimer des Gartens, seine roten Blumen erfreuten mieh besonders, weil ieh naeh augen/irztliehem Urteil Rot nieht als Farbe wahrnehmen kSnne. Zu meiner Uberrasehung antwortete er mir, aueh sein Augenarzt habe ihm gesagt, es sei vSllig unmSglich, daft er Rot als Farbe sehen kSnne ; seitdem habe er kein Yertrauen mehr in dessen Wissensehaftliehkeit.
The American Journal of Psychology, 1933
JOURNAL-AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE, 1996
Table 2. Maximum leaf area indices (LAIs) of different shoot types in the fourteenth year of four... more Table 2. Maximum leaf area indices (LAIs) of different shoot types in the fourteenth year of four 'Empire' apple production systems. LAI Production Spurs Short shoot lateral Extension shoot system Fruiting Nonfruiting Lateral ...
Scientia Horticulturae, 1999
Scientia Horticulturae, 1999
Environmental and Experimental Botany, 1994
ABSTRACT
Trees, 1993
... or environmental conditions preclude calculation of carbon budgets from data published for in... more ... or environmental conditions preclude calculation of carbon budgets from data published for individual plant organs (Avery 1977; Barden 1978). ... budgets of apple trees using photosynthesis and respiration measurements and a tree chamber in the orchard continu-ally over a ...
Scientia Horticulturae, 1999
One-month old, rooted, semi-hardwood cutting plants of pepino cv. Xotus in sand-potted culture we... more One-month old, rooted, semi-hardwood cutting plants of pepino cv. Xotus in sand-potted culture were treated with 200 ml Hoagland nutrient solution with or without additional 25 mM NaCl twice a week for 2 months, and exposed to 350 AE 10, 700 AE 10 or 1050 AE 10 ppm CO 2 in controlled environment chambers during the last month of the experiment. NaCl salinity in the rhizosphere reduced growth of all the organs, but raised stem dry weight ratio and root dry weight ratio. In contrast, atmospheric CO 2 enrichment increased plant and fruit growth. Leaf dry weight ratio and fruit dry weight ratio rose, but stem dry weight ratio and root dry weight ratio decreased at high CO 2 levels. Daily expansion rate of leaf area, growth rate of side-shoot length, rate of plant dry mass production, and increased rate of fresh fruit weight decreased due to NaCl stress, but increased with CO 2 enrichment. Side-shoot diameter rose, whereas specific leaf area, leaf area ratio, and sideshoot dry weight ratio declined under both NaCl-stressed and CO 2 -enriched conditions. In comparison with the 350 ppm CO 2 treatment without NaCl salinity in the rhizosphere, net assimilation rate and relative growth rate of plants were reduced by 8±13% and 16±32% due to NaCl salinity, and enhanced by 22±23% and 42±64% at 700 ppm CO 2 , and by 36±44% and 64±101% at 1050 pm CO 2 , respectively. The simultaneous treatments of NaCl salinity and high CO 2 resulted in indefinite effects on vegetative and reproductive growth as well as on dry mass production of different plant organs. Nevertheless, the negative impacts of NaCl stress on plant growth and fruit Scientia Horticulturae 81 (1999) 25±41 : S 0 3 0 4 -4 2 3 8 ( 9 8 ) 0 0 2 6 4 -7 yield diminished at high CO 2 levels. Atmospheric CO 2 enrichment increased the tolerance of pepino to NaCl salinity in the root medium. #
Plant, Cell and Environment, 1989
Abstract. In addition to photosynthesis as in the leaf, fruit possess a system which refixes CO 2... more Abstract. In addition to photosynthesis as in the leaf, fruit possess a system which refixes CO 2 from the mitochondrial respiration of predominantly imported carbon. This pathway produces malate by the action of phosphoenolpyruvate carboxylase, PEPC, (EC 4.1.1.31) and ...