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Tewfik,, A., Sourial, G., Bayoumi, M., Abdel - Fattah, M. (2005). VEGETATIVE .GROWTH ,- AND SOME BIOCHEMICAL RESPONSES OF MATURE ALPHONSE MANGO TREES TO SOME FOLlAR SPRAYS WITH GAa, PBZ AND UREA. Journal of Plant Production, 30(6), 3385-3396. doi: 10.21608/jpp.2005.237404
A. A. Tewfik,; G. F. Sourial; M. S. Bayoumi; M. I. Abdel - Fattah. "VEGETATIVE .GROWTH ,- AND SOME BIOCHEMICAL RESPONSES OF MATURE ALPHONSE MANGO TREES TO SOME FOLlAR SPRAYS WITH GAa, PBZ AND UREA". Journal of Plant Production, 30, 6, 2005, 3385-3396. doi: 10.21608/jpp.2005.237404
Tewfik,, A., Sourial, G., Bayoumi, M., Abdel - Fattah, M. (2005). 'VEGETATIVE .GROWTH ,- AND SOME BIOCHEMICAL RESPONSES OF MATURE ALPHONSE MANGO TREES TO SOME FOLlAR SPRAYS WITH GAa, PBZ AND UREA', Journal of Plant Production, 30(6), pp. 3385-3396. doi: 10.21608/jpp.2005.237404
Tewfik,, A., Sourial, G., Bayoumi, M., Abdel - Fattah, M. VEGETATIVE .GROWTH ,- AND SOME BIOCHEMICAL RESPONSES OF MATURE ALPHONSE MANGO TREES TO SOME FOLlAR SPRAYS WITH GAa, PBZ AND UREA. Journal of Plant Production, 2005; 30(6): 3385-3396. doi: 10.21608/jpp.2005.237404

VEGETATIVE .GROWTH ,- AND SOME BIOCHEMICAL RESPONSES OF MATURE ALPHONSE MANGO TREES TO SOME FOLlAR SPRAYS WITH GAa, PBZ AND UREA

Article 16, Volume 30, Issue 6, June 2005, Page 3385-3396  XML PDF (535.31 K)
Document Type: Original Article
DOI: 10.21608/jpp.2005.237404
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Authors
A. A. Tewfik,1; G. F. Sourial1; M. S. Bayoumi2; M. I. Abdel - Fattah2
1Hort. Dept. , Fac. of Agric. . Zagazig Univ.I Egypt.
2Hort. Res. Inst, A.R.C., Egypt
Abstract
In 2001! 2002 and 2002(2003 seasons. mature Alphonse mango trees
received 4 toliar sprays at monthly intervals from mid Oct. to mid Jan. The tested
treatments were : Cont. ( water). GA; (alone) at 10 ppm, 6A3 ( alone) at 20 ppm ,
Paclobutrazol (PBZ) (alone) at 500 ppm , PBZ (alone) at 1000 ppm, urea (alone) at
1%. GA310 ppm + urea 1% . GA; 20 ppm + urea 1% _ PBZ 500 ppm + urea 1% and
PBZ 1000 ppm + urea 1 %.
Clear responses in vegetative growth , expressed as shoot growth‘rate, number
of leaves! shoot. leaf area and leaf fresh and dry weights was obtained by all
treatments implying (3A3, urea or both. However, the most effective treatment was
(GA; 20 ppm + urea 1%) . The leaf content of chlorophyll a a b . carotenoids,
nitrogen. phOSphoms and potassium were not altered by any of the tested
treatments, except for the increment of leaf N91: in the first season by PBZ 1000 ppm
+ urea 1% as well as in K % in the second season by PBZ 1000 ppm (with l or
without urea ) and PBZ 500 ppm + urea 1%.
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