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Salem, A., Shaheen, M., Abdel -Aal, Y., Abdel-Mohsen, M. (2007). A COMPARATIVE STUDY ON N-USE EFFICIENCY OF CRIMSON SEEDLESS, SUPERIOR AND THOMPSON SEEDLESS GRAPEVINE VARIETIES. Journal of Soil Sciences and Agricultural Engineering, 32(6), 5035-5047. doi: 10.21608/jssae.2007.201304
A. T. Salem; M. A. Shaheen; Y. A. Abdel -Aal; M. A. Abdel-Mohsen. "A COMPARATIVE STUDY ON N-USE EFFICIENCY OF CRIMSON SEEDLESS, SUPERIOR AND THOMPSON SEEDLESS GRAPEVINE VARIETIES". Journal of Soil Sciences and Agricultural Engineering, 32, 6, 2007, 5035-5047. doi: 10.21608/jssae.2007.201304
Salem, A., Shaheen, M., Abdel -Aal, Y., Abdel-Mohsen, M. (2007). 'A COMPARATIVE STUDY ON N-USE EFFICIENCY OF CRIMSON SEEDLESS, SUPERIOR AND THOMPSON SEEDLESS GRAPEVINE VARIETIES', Journal of Soil Sciences and Agricultural Engineering, 32(6), pp. 5035-5047. doi: 10.21608/jssae.2007.201304
Salem, A., Shaheen, M., Abdel -Aal, Y., Abdel-Mohsen, M. A COMPARATIVE STUDY ON N-USE EFFICIENCY OF CRIMSON SEEDLESS, SUPERIOR AND THOMPSON SEEDLESS GRAPEVINE VARIETIES. Journal of Soil Sciences and Agricultural Engineering, 2007; 32(6): 5035-5047. doi: 10.21608/jssae.2007.201304

A COMPARATIVE STUDY ON N-USE EFFICIENCY OF CRIMSON SEEDLESS, SUPERIOR AND THOMPSON SEEDLESS GRAPEVINE VARIETIES

Article 9, Volume 32, Issue 6, June 2007, Page 5035-5047  XML PDF (660.55 K)
Document Type: Original Article
DOI: 10.21608/jssae.2007.201304
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Authors
A. T. Salem1; M. A. Shaheen1; Y. A. Abdel -Aal2; M. A. Abdel-Mohsen1
1Pomology dept., fac. of Agric., Cairo univ.
2Soil Science dept., fac. of Agric., Cairo univ.
Abstract
A pot experiment was carried out to evaluate the growth and N-use efficiency of three grapevine varieties (Crimson Seedless, Superior and Thompson seedless). Nitrogen was added at five rates: 0, 10, 40, 80 and 120 mg N kg-1 as ammonium nitrate (33.5 % N). Plant samples were collected after two and six weeks from the ending of nitrogen application treatments. The obtained results showed that, irrespective of varieties, increasing N-rates increased root, shoot growth and N-content but decreased N-use efficiency. However, Crimson recorded the highest values of all root, shoot growth parameters, N-content and N-use efficiency compared with the other two varieties.  On the other hand, the interaction effect of N-rates and grapevine varieties showed that Crimson had the highest root length, root fineness values, root and shoot dry weight, shoot length, leaf area, N-content. Crimson recorded the highest nitrogen use efficiency at all N-rates compared with the two other grapevine varieties. Based on the result of the present study, Crimson variety can produce well under low N level and responded well to N-application.
Keywords
grapevine; fertilization; nitrogen; N-use efficiency; Crimson Seedless; Superior and Thompson Seedless
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