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Direct Research Journals
Vol.4 (7), pp. 155-160, July 2016
ISSN: 2354-4147

Sugarcane Flowering in Relation to Nitrogen Fertilization and Ratoon
Article Number: DRJA12266256
DOI:

Original Research Article


Mohamed1, B. D., Mahmoud2, E. A., El-Hennawi2, H. H. and Mehareb1*, E. M.


1Sugar Crops Research Institute, Agriculture Research Center, Giza, Egypt.

2Agronomy Department, Faculty of Agriculture, Cairo University, Egypt.

*Corresponding author E-mail:  elmoharb@yahoo.com


date Received: May 17, 2016     date Accepted: June 4, 2016     date Published: June 18, 2016

Abstract

This study consisted of 2 experiments that were carried out at El-Sabahia Research Station, Sugar Crops Research Institute (SCRI), Agricultural Research Center (ARC), (31° 12 N) during 2004/2005 (plant cane) and 2005/2006 (ratoon crop) seasons to investigate the effect of N fertilization levels; 160, 200, 240 and 280 kg/fed on behavior of natural flowering of 32 sugarcane genotypes from different origins. Results showed significant differences among the studied genotypes in their flowering % under different levels of N in plant cane and ratoon crop. The difference among N levels as well as the genotype × N levels interaction in their effects on % of flowered plants was significant in both plant and ratoon crops. The % of flowered plants within and between levels of N differed significantly in plant and ratoon crops. Moreover, increasing N levels caused a reduction in flowering behavior. The % of flowering   increased in older crops.


Key words: Flowering, first ratoon, plant cane and sugar cane.

 

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MANUSCRIPT REVIEWED BY:

Prof.Sami R. Al-Zubaydi
Plant Physiology,University of Duhok.
Dr R K Mathukia
Associate Research Scientist
(Weed Control) Department of Agronomy
College of Agriculture Junagadh Agricultural University
Junagadh-362001 (Gujarat).