Home Articles List Article Information
Journal of Soil Sciences and Agricultural Engineering
Journal Archive
Volume Volume 15 (2024)
Volume Volume 14 (2023)
Volume Volume 13 (2022)
Volume Volume 12 (2021)
Volume Volume 11 (2020)
Volume Volume 10 (2019)
Volume Volume 9 (2018)
Volume Volume 8 (2017)
Volume Volume 7 (2016)
Volume Volume 6 (2015)
Volume Volume 5 (2014)
Volume Volume 4 (2013)
Volume Volume 3 (2012)
Volume Volume 2 (2011)
Volume Volume 1 (2010)
Volume Volume 34 (2009)
Volume Volume 33 (2008)
Volume Volume 32 (2007)
Volume Volume 31 (2006)
Volume Volume 30 (2005)
Volume Volume 29 (2004)
Volume Volume 28 (2003)
Volume Volume 27 (2002)
Volume Volume 26 (2001)
Volume Volume 25 (2000)
Abdel-Aal, Y., Abou-Zeid, S., Abd El-Latif, A., El-Sapagh, S. (2016). EFFECT OF AMINO ACIDS REPLACING NITRATE ON GROWTH AND NITRATE ACCUMULATION IN LETTUCE.. Journal of Soil Sciences and Agricultural Engineering, 7(3), 237-241. doi: 10.21608/jssae.2016.39400
Y. Abdel-Aal; S. Abou-Zeid; Amal Abd El-Latif; Shaimaa El-Sapagh. "EFFECT OF AMINO ACIDS REPLACING NITRATE ON GROWTH AND NITRATE ACCUMULATION IN LETTUCE.". Journal of Soil Sciences and Agricultural Engineering, 7, 3, 2016, 237-241. doi: 10.21608/jssae.2016.39400
Abdel-Aal, Y., Abou-Zeid, S., Abd El-Latif, A., El-Sapagh, S. (2016). 'EFFECT OF AMINO ACIDS REPLACING NITRATE ON GROWTH AND NITRATE ACCUMULATION IN LETTUCE.', Journal of Soil Sciences and Agricultural Engineering, 7(3), pp. 237-241. doi: 10.21608/jssae.2016.39400
Abdel-Aal, Y., Abou-Zeid, S., Abd El-Latif, A., El-Sapagh, S. EFFECT OF AMINO ACIDS REPLACING NITRATE ON GROWTH AND NITRATE ACCUMULATION IN LETTUCE.. Journal of Soil Sciences and Agricultural Engineering, 2016; 7(3): 237-241. doi: 10.21608/jssae.2016.39400

EFFECT OF AMINO ACIDS REPLACING NITRATE ON GROWTH AND NITRATE ACCUMULATION IN LETTUCE.

Article 1, Volume 7, Issue 3, March 2016, Page 237-241  XML PDF (625.31 K)
Document Type: Original Article
DOI: 10.21608/jssae.2016.39400
View on SCiNiTO View on SCiNiTO
Authors
Y. Abdel-Aal; S. Abou-Zeid; Amal Abd El-Latif; Shaimaa El-Sapagh
Soil Science Dept., Faculty of Agriculture, Cairo University, Giza, Egypt.
Abstract
A study was carried out to determine the influence of nitrogen (N) sources on the growth and nitrate (NO3−) accumulation of lettuce iceberg (Lactuca sativa) in nutrient film technique (NFT). Plants were supplied with treatments NO3− and six amino acids (AA)treatments, [glutamic acid (Glu), glutamine (Gln), alanine (Ala), glycine (Gly),aspartic acid (Asp) and argnine (Arg)]  , at three NO3−-N/AA-N ratios:(1) 100:0, (2) 80:20 and (3) 60:40.The total N concentration was 12.5 mmol L-1 for all treatments in nutrient solution. All AAs reduced plant growth with decreasing NO3− -N/AA-N ratios compared to the 100% NO3− treatment. Fresh and dry weight of shoot and root were significantly lower in Glu treatment than in all other treatments when NO3−-N/AA-N ratios were 80:20 and 60:40. Decreasing NO3− -N/AA-N ratios reduced NO3− concentrations in fresh shoot, regardless of AA sources. Plants grown in (Glu) treatment had lower NO3−concentrations in fresh shoot than grown in all other treatments when NO3−-N/AA-N ratio was 80:20 only.
Keywords
Amino acids; nitrate; accumulation and lettuce
Statistics
Article View: 131
PDF Download: 330