Effects of elevated carbon dioxide and nitrogen fertilization on nitrate reductase activity in sweetgum and loblolly pine trees in two temperate forests

2008 ◽  
Vol 314 (1-2) ◽  
pp. 197-210 ◽  
Author(s):  
Susan M. Natali ◽  
Sergio A. Sañudo-Wilhelmy ◽  
Manuel T. Lerdau
Keyword(s):  
Carbon Dioxide ◽  
Nitrate Reductase ◽  
Loblolly Pine ◽  
Nitrogen Fertilization ◽  
Nitrate Reductase Activity ◽  
Temperate Forests ◽  
Reductase Activity ◽  
Elevated Carbon Dioxide ◽  
Pine Trees

scholarly journals Nitrate reductase activity, biomass, yield, and quality in cotton in response to nitrogen fertilization

Phyton ◽  
2015 ◽  
Vol 84 (2) ◽  
pp. 454-460
Author(s):  
Hern醤dez-Cruz AE ◽  
E S醤chez ◽  
P Preciado-Rangel ◽  
M L Garc韆-Ba駏elos ◽  
A Palomo-Gil ◽  
...  
Keyword(s):  
Nitrate Reductase ◽  
Nitrogen Fertilization ◽  
Nitrate Reductase Activity ◽  
Biomass Yield ◽  
Reductase Activity ◽  
Yield And Quality

Nitrate Reductase Activity, Productivity and Technological Quality of Sugarcane Under Molybdenum and Nitrogen Fertilization

Sugar Tech ◽  
2021 ◽  
Author(s):  
Renato Lemos dos Santos ◽  
Diego Moura de Andrade Oliveira ◽  
Raul Vitor de Souza Santos ◽  
Maria José Alves de Moura ◽  
Victor Hugo de Farias Guedes ◽  
...  
Keyword(s):  
Nitrate Reductase ◽  
Nitrogen Fertilization ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Technological Quality

Influence of nitrogen fertilization on water relations, photosynthesis, carbohydrate and nitrogen metabolism of diverse pearl millet genotypes under arid conditions

2001 ◽  
Vol 137 (3) ◽  
pp. 307-318 ◽  
Author(s):  
S. KATHJU ◽  
U. BURMAN ◽  
B. K. GARG
Keyword(s):  
Nitrate Reductase ◽  
Pearl Millet ◽  
Nitrogen Fertilization ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Growth And Yield ◽  
Superior Performance ◽  
Metabolic Efficiency ◽  
Land Races ◽  
Arid Conditions

Effects of nitrogen fertilization (80 kg N/ha) were studied on pearl millet (Pennisetum glaucum) genotypes including hybrids (MH-179 and HHB-67), composites (CZ-IC-923 and CZP-9604) and land races (Barmer population and CZ-IC-718) grown for 2 consecutive years (1997 and 1998) under rainfed conditions of the Indian arid zone. Nitrogen application significantly increased the grain and stover yields in all the genotypes, particularly in the hybrids during both the years but more so in 1997, characterized by late onset of rains followed by adequate precipitation (299·5 mm). Notwithstanding lower plant water potential and leaf relative water content, N fertilized plants displayed significantly higher photosynthetic rates, leaf area, levels of total chlorophyll, starch, reducing sugars, soluble protein and free amino acids and nitrate reductase activity as compared with unfertilized control plants in all the genotypes during both the years.Genotypes HHB-67 and Barmer population during 1997 and HHB-67 and CZ-IC-718 during 1998 provided significantly higher grain yields than other genotypes whereas dry matter production was highest in cv. Barmer population during both the years. These genotypes generally maintained higher rates of photosynthesis, more efficient carbohydrate metabolism and higher nitrate reductase activity leading to better performance. Relatively higher yields of land races than composites and comparable with those of hybrids indicated adaptation of these cultivars to arid conditions and maintenance of several characteristics for their superior performance which could be further augmented by N application.Fertility induced improvement of metabolic efficiency, coupled with higher photosynthesis and nitrate reductase activity for efficient N utilization seem to be the control mechanisms, for enhanced growth and yield of diverse pearl millet genotypes under limited water conditions.

scholarly journals Nitrate Reductase Activity and Nitrogen and Biomass Accumulation in Sugarcane under Molybdenum and Nitrogen Fertilization

2019 ◽  
Vol 43 ◽  
Author(s):  
Renato Lemos dos Santos ◽  
Fernando José Freire ◽  
Emídio Cantídio Almeida de Oliveira ◽  
Maria Betânia Galvão dos Santos Freire ◽  
Jason Brossard West ◽  
...  
Keyword(s):  
Nitrate Reductase ◽  
Nitrogen Fertilization ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Biomass Accumulation

Physiological indicators of nitrogen response in a short rotation sycamore plantation. II. Nitrogen metabolism

1993 ◽  
Vol 71 (6) ◽  
pp. 841-847 ◽  
Author(s):  
Timothy J. Tschaplinski ◽  
Richard J. Norby
Keyword(s):  
Amino Acids ◽  
Growth Rate ◽  
Nitrate Reductase ◽  
Nitrogen Fertilization ◽  
Free Amino ◽  
Nitrate Reductase Activity ◽  
Growth Response ◽  
Reductase Activity ◽  
Growing Season ◽  
Relative Growth

American sycamore (Platanus occidentalis L.) seedlings were grown in the field under different urea–nitrogen fertilization regimes to identify nitrogen variables that characterize the growth response. Treatments included fertilization with 50, 150, and 450 kg N/ha, periodic fertilization (three times during the growing season) at 37.5 kg N/ha, and an unfertilized control. Leaf total nitrogen concentration was a poor indicator of plant growth response to nitrogen fertilization. Salt-extractable protein, nitrate, and free amino acid concentrations all trended upward by the end of the growing season as relative growth rate declined, but treatment differences were minimal. Leaf nitrate reductase activity was consistently higher in fertilized trees before substantial leaf senescence had occurred. When leaf loss was evident, all treatments had high levels of nitrate reductase activity. Aspartic acid and glutamic acid were the most prevalent free amino acids in leaves, whereas concentrations of amine-rich amino acids were low. Although several nitrogen variables, including foliar asparagine and glycine concentrations, were positively correlated with relative growth rate (r ≥ 0.7), no single variable closely reflected treatment differences in growth response. Key words: amino acids, nitrogen, nitrate reductase, sycamore.

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