Effect of nitrogen levels and leaf position on carbohydrate and nitrogen metabolism in FCV tobacco (Nicotiana tabacum L.)

被引：1

作者：

Chandrasekhararao C. ^{[1
]}

Siva Raju K. ^{[2
]}

Anuradha M. ^{[2
]}

Ravisankar H. ^{[3
]}

Kasturi Krishna S. ^{[1
]}

机构：

[1] Division of Crop Production, Central Tobacco Research Institute, Rajahmundry, Andhra Pradesh

[2] Division of Crop Chemistry and Soil Science, Central Tobacco Research Institute, Rajahmundry, Andhra Pradesh

[3] Agricultural Knowledge Management Unit, Central Tobacco Research Institute, Rajahmundry, Andhra Pradesh

来源：

Indian Journal of Plant Physiology | 2014年 / 19卷 / 3期

关键词：

Nitrate nitrogen; Nitrogen levels; NR activity; Starch; Tobacco;

D O I：

10.1007/s40502-014-0107-6

中图分类号：

学科分类号：

摘要：

Interplay of nitrogen and carbohydrate metabolism, which influenced by nitrogen nutrient management determines the quality and chemical composition of cured tobacco leaf. Tobacco variety Kanchan is grown in Northern light soils of Andhra Pradesh and is a high yielding variety showing response to higher levels of nitrogen. Effect of nitrogen (0, 40, 80, 120, 160 and 200 kg N ha−1) on nitrate reductase, nitrate accumulation and starch content in different leaf position of variety Kanchan was studied in pot (150 kg) culture with Northern light soil of Andhra Pradesh. The starch content decreased significantly with increase in application of nitrogen in three growth stages. But the maximum decrease in starch content was observed with increase in application of nitrogen from 120 to 160 kg N ha−1 in all leaf positions except in the top position. The in vivo nitrate reductase (NR) activity increased significantly with increase in leaf position from bottom to top and decreased with age of the plant from 50 to 70 days. Nitrate–N content increased from 0.14 mg g−1 dry wt. in the bottom leaves of control plants to 8.615 mg g−1 dry wt in the leaves of plants treated with 200 kg N ha−1. The nitrate content increased from bottom to top position in all treatments with increase in nitrogen application. Increased application of nitrogen increased the NR activity and accumulation of nitrate–N, thus a positive relationship was observed between NR activity and nitrate–N accumulation whereas starch content decreased with increased application of nitrogen. The negative relationship was observed between NR activity and starch accumulation and also between nitrate–N and starch. The recommendation of 120 kg N ha−1 for the variety Kanchan grown in northern light soils of Andhra Pradesh was found to be optimum as NR activity was at a par between 120 and 200 kg N ha−1 application at 60 and 70 days of growth. Thus NR activity may be taken as one of the indicators to the maturity of leaf and availability of nitrogen to the plants. © 2014, Indian Society for Plant Physiology.

引用

页码：244 / 249

页数：5

共 18 条

[1]

Boussadia O., Steppe K., Zgallai H., Ben E.L., Hadj S., Braham M., Lemeur R., Van Labeke M.C., Effects of nitrogen deficiency on leaf photosynthesis, carbohydrate status and biomass production in two olive cultivars ‘Meski’ and ‘Koroneiki’, Scientia Horticulturae, 123, pp. 336-342, (2010)

[2]

Burton H.R., Walton L., Changes in chemical composition of burley tobacco during senescence and air-curing. 3. Tobacco specific nitrosamines, Journal of Agriculture and Food Chemistry, 37, pp. 426-430, (1989)

[3]

Cataldo D.A., Haroon, Schrader L.E., Youngs V.L., Rapid colorimetric determination of nitrate in plant tissue by nitration of salicylic acid, Communications in Soil Science and Plant Analysis, 6, pp. 71-80, (1975)

[4]

Chandrasekhararao C., Siva Raju K., Ravisankar H., Anuradha M., Kasturi Krishna K., Effect of different levels of nitrogen and leaf position on biochemical quality constituents of FCV tobacco (Nicotiana tabacum) grown in northern light soils of Andhra Pradesh, Indian Journal of Agricultural Sciences, 83, pp. 1052-1057, (2013)

[5]

Gaines T.P., Meudt W.J., Adaptation of the iodine stain method for determining the starch in flue-cured tobacco, Tobacco Science, 12, pp. 130-133, (1968)

[6]

Hirano T., Saito Y., Ushimaru H., Michiyama H., The effect of the amount of nitrogen fertilizer on starch metabolism in leaf sheath of japonica and indica rice varieties during the heading period, Plant Production Science, 8, pp. 122-130, (2005)

[7]

Mars N.K., Osvald J., Effects of different nitrogen levels on lettuce growth and nitrate accumulation in iceberg lettuce (Lactuca sativa var. capitata l.) grown hydroponically under greenhouse conditions, Gartenbauwissenschaft, 67, pp. 128-134, (2002)

[8]

Padmavathi D., Chemical investigations on tobacco specific nitrosamines (TSNAs) in Indian tobacco, (2008)

[9]

Raja Rao D.C., Suryanarayana Y.V., Non flue-cured tobacco types in India, (1988)

[10]

Ruiz J.M., Baghour M., Bratones G., Belakbir A., Romero L., Nitrogen metabolism in tobacco plants (Nicotiana tabacum L.): role of boron as a possible regulatory factor, International Journal of Plant Sciences, 159, pp. 121-126, (1998)

← 1 2 →