Nitrogen content, nitrate reductase activity, and biomass of kimpul (Xanthosoma sagittifolium) on shade and nitrogen fertilizer variation

2009 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Nitrate Reductase ◽  
Nitrogen Content ◽  
Nitrogen Fertilizer ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Xanthosoma Sagittifolium

INFLUENCE DE LA TEMPERATURE DU SUBSTRAT ET DE LA FERTILISATION AZOTEE SUR LA CROISSANCE, LE DEVELOPPEMENT, LA TENEUR EN AZOTE ET L’ACTIVITE DE LA NITRATE REDUCTASE CHEZ LA TOMATE

1984 ◽  
Vol 64 (1) ◽  
pp. 181-191 ◽  
Author(s):  
ANDRÉ GOSSELIN ◽  
FRANÇOIS-P. CHALIFOUR ◽  
MARC J. TRUDEL ◽  
GHISLAIN GENDRON
Keyword(s):  
Lycopersicon Esculentum ◽  
Nitrate Reductase ◽  
Nitrogen Content ◽  
Nitrate Reductase Activity ◽  
Root Zone ◽  
Reductase Activity ◽  
Dry Weight ◽  
Fruit Weight ◽  
Root Zone Temperature ◽  
Lycopersicon Esculentum Mill

We measured the effects of five root temperatures (12, 18, 24, 30 and 36 °C) and five rates of nitrogen fertilization (0, 2.5, 7.5, 22.5 and 67.5 meq N∙L−1) on growth, development, nitrogen content and nitrate reductase activity of tomato plants (Lycopersicon esculentum Mill. ’Vendor’). The greatest root dry weight was obtained at 18 °C and 2.5 meq N∙L−1 and the highest shoot dry weight at 24 °C and 22.5 meq N∙L−1. Total fruit weight was maximum at 24 °C and 2.5 meq N∙L−1. High root temperatures and high levels of fertilization increased the number of aborted flowers and the nitrogen content of shoots, but reduced tomato yields. Nitrate reductase activity (NRA) was higher in leaves than in roots and with plants receiving 22.5 meq N∙L−1 as compared to 2.5 meq. NRA in roots decreased as temperature increased.Key words: Lycopersicon esculentum Mill., root zone temperature, nitrate reductase, nitrogen

scholarly journals Nitrate reductase activity in cabbage (Brassica oleracae var. capitata) seedlings affected by the different nitrogen fertilizer forms

2013 ◽  
Vol 57 (1-2) ◽  
pp. 41-48
Author(s):  
Metin Turan ◽  
Yildrum Sezen
Keyword(s):  
Nitrate Reductase ◽  
Nitrogen Fertilizer ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Farmyard Manure ◽  
Potassium Nitrate ◽  
Fertilizer Treatment ◽  
N Application ◽  
Nitrate Fertilizer ◽  
Plant Harvesting

The effect of different nitrogen fertilizer (potassium nitrate, ammonium nitrate, ammonium sulphate, urea and farmyard manure) on nitrate reductase activity in cabbage (<i>Brassica oleracea</i> var. <i>capitata</i>) seedlings were studied. pH of the plant growth niedia was higher in the nitrate fertilizer treatment than the ammonium and other fertilizer forms. NO<sub>3</sub><sup>-</sup>-N application increased NRA in plant, but NH<sub>4</sub><sup>+</sup>-N decreased NRA in plant. Harvesting date and different fertilizer doses increased NRA while NH<sub>4</sub><sup>+</sup>-N decreased plant nitrate uptake. There was a significant relationship between NRA and fertilizer types.

Nitrate Reductase Activity of Maize Hybrids and Their Parental Inbred 1

Crop Science ◽  
1966 ◽  
Vol 6 (2) ◽  
pp. 169-173 ◽  
Author(s):  
L. E. Schrader ◽  
D. M. Peterson ◽  
E. R. Leng ◽  
R. H. Hageman
Keyword(s):  
Nitrate Reductase ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Maize Hybrids ◽  
Parental Inbred

Chromosomal Control of Nitrate Reductase Activity in Hexaploid Wheat 1

Crop Science ◽  
1982 ◽  
Vol 22 (1) ◽  
pp. 85-88 ◽  
Author(s):  
E. L. Deckard ◽  
N. D. Williams ◽  
J. J. Hammond ◽  
L. R. Joppa
Keyword(s):  
Nitrate Reductase ◽  
Hexaploid Wheat ◽  
Nitrate Reductase Activity ◽  
Reductase Activity
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