Biomass production and nitrate metabolism of Atriplex hortensis L. (C3 plant) and Amaranthus retroflexus L. (C4 plant) in cultures at different levels of nitrogen supply

Oecologia ◽  
1987 ◽  
Vol 72 (2) ◽  
pp. 303-314 ◽  
Author(s):  
G. Gebauer ◽  
M. I. Schulumacher ◽  
B. Krstić ◽  
H. Rehder ◽  
H. Ziegler
Keyword(s):  
Biomass Production ◽  
Amaranthus Retroflexus ◽  
Nitrogen Supply ◽  
C4 Plant ◽  
C3 Plant ◽  
Nitrate Metabolism ◽  
Different Levels

Sweet sorghum - Biomass production and energy balance at different levels of agricultural inputs. A six-year field experiment in north-eastern Poland

2020 ◽  
Vol 119 ◽  
pp. 126119 ◽  
Author(s):  
Krzysztof Józef Jankowski ◽  
Mateusz Mikołaj Sokólski ◽  
Bogdan Dubis ◽  
Dariusz Załuski ◽  
Władysław Szempliński
Keyword(s):  
Energy Balance ◽  
Field Experiment ◽  
Biomass Production ◽  
Sweet Sorghum ◽  
North Eastern ◽  
Different Levels

Comparisons of Dihydroxybenzenes and Paraquat

Weed Science ◽  
1970 ◽  
Vol 18 (1) ◽  
pp. 179-182 ◽  
Author(s):  
E. J. Hogue ◽  
G. F. Warren
Keyword(s):  
Mode Of Action ◽  
Amaranthus Retroflexus ◽  
Solanum Nigrum ◽  
Additive Effects ◽  
Black Nightshade ◽  
Redroot Pigweed ◽  
Fast Acting ◽  
Different Levels

Although similar in mode of action, 1,2-dihydroxybenzene (catechol) and 1,1′-dimethyl-4,4′bipyridinium ion (paraquat) at different levels were required to kill plants. Both chemicals were fast-acting, they both required light to be active, and herbicides that inhibit photosynthesis protected the plants temporarily against the action of both compounds. Paraquat and catechol had additive effects on black nightshade (Solanum nigrum L.) but not on redroot pigweed (Amaranthus retroflexus L.). Catechol protected redroot pigweed against the action of paraquat.

scholarly journals Relationships Between Some Hordein Components and Quality Properties in Two Tunisian Barley Varieties as Influenced by Nitrogen Fertilisation

2011 ◽  
Vol 41 (No. 1) ◽  
pp. 11-16 ◽  
Author(s):  
L. Bettaieb-Ben Kaab ◽  
M. El Felah ◽  
M. Lauriere
Keyword(s):  
Molecular Weight ◽  
Environmental Conditions ◽  
Nitrogen Supply ◽  
Yield Potential ◽  
Genetic Adaptation ◽  
Nitrogen Fertilisation ◽  
Quality Properties ◽  
Electrophoresis System ◽  
Different Levels ◽  
Page Electrophoresis

Two Tunisian barley varieties, Martin and Rihane, differing by their degrees of adaptation to the environmental conditions and grain yield potential, were grown under different levels of nitrogen (N) fertilisation. The effect of nitrogen supply on the hordein components (expressed in mg per albumen) was determined by Nu-PAGE electrophoresis system using the MOBS running buffer and densitometric analysis. Increasing nitrogen fertilisation increased the protein content by increasing the amount of C-hordeins. The sub-fraction BIII of high molecular weight B-hordeins appeared, in the present study, as the best criterion for distinguishing between the two barley varieties genetic adaptation, and its quantification could be recommended for the understanding of the quality properties of the barley response to different environmental conditions particularly nitrogen fertilisation which appears to be the main origin of differences in the protein aggregation mode of different B-hordein sulphur-rich sub-fractions.    

Effects of environmental factors on germination and emergence ofAmaranthus retroflexus

Weed Science ◽  
1999 ◽  
Vol 47 (5) ◽  
pp. 505-510 ◽  
Author(s):  
R. Ghorbani ◽  
W. Seel ◽  
C. Leifert
Keyword(s):  
Seed Germination ◽  
Control Strategies ◽  
Germination Rate ◽  
Soil Surface ◽  
Dry Weight ◽  
Amaranthus Retroflexus ◽  
Nitrogen Supply ◽  
Biological Weed Control ◽  
Detailed Knowledge ◽  
Different Temperatures

Detailed knowledge about the environmental conditions required for weed seed germination and establishment in soil is an important prerequisite for the development of integrated and biological weed control strategies. Germination and establishmentof Amaranthus retroflexuswere studied at different temperatures, planting depths, soil types, nitrogen supply, and water potentials. The minimum temperature for seed germination was > 5 C; maximum germination occurred between 35 and 40 C. At temperatures between 25 and 35 C, an additive effect on germination rate was observed when temperature and water availability were increased. For all soils tested, the percentage emergence of seeds placed on the soil surface and 4 cm deep was significantly lower than seeds placed between 0.5 and 3 cm. Emergence in the four sandy soils was generally greater than in the two heavier soils included in the study. There was a highly significant interaction between seed depth and soil type. Plant growth was also greatest in the lighter soils. Plant height, number of leaves, leaf area, fresh and dry weight, and nitrogen and carbon percentage in plant tissues ofA. retroflexusincreased significantly with increasing soil nitrogen supply.

Biomass production and allocation in Jatropha curcas L. seedlings under different levels of drought stress

2010 ◽  
Vol 34 (5) ◽  
pp. 667-676 ◽  
Author(s):  
W.M.J. Achten ◽  
W.H. Maes ◽  
B. Reubens ◽  
E. Mathijs ◽  
V.P. Singh ◽  
...  
Keyword(s):  
Drought Stress ◽  
Biomass Production ◽  
Jatropha Curcas ◽  
Jatropha Curcas L ◽  
Different Levels
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