Home Articles List Article Information
Egyptian Journal of Agricultural Research
Journal Archive
Volume Volume 103 (2025)
Volume Volume 102 (2024)
Volume Volume 101 (2023)
Volume Volume 100 (2022)
Volume Volume 99 (2021)
Volume Volume 98 (2020)
Volume Volume 97 (2019)
Volume Volume 96 (2018)
Volume Volume 95 (2017)
Volume Volume 94 (2016)
Volume Volume 93 (2015)
Volume Volume 92 (2014)
Volume Volume 91 (2013)
Volume Volume 90 (2012)
Volume Volume 89 (2011)
Volume Volume 88 (2010)
Volume Volume 87 (2009)
Volume Volume 86 (2008)
Volume Volume 85 (2007)
Volume Volume 84 (2006)
Volume Volume 83 (2005)
Volume Volume 82 (2004)
Volume Volume 81 (2003)
Volume Volume 80 (2002)
Volume Volume 79 (2001)
Volume Volume 78 (2000)
Volume Volume 77 (1999)
Volume Volume 76 (1998)
Volume Volume 75 (1997)
Volume Volume 74 (1996)
EL-SHAHAWY, M., ABDEL-MALIK, R. (2000). RESPONSE OF GIZA 87 COTTON CULTIVAR TO MEPIQUAT CHLORIDE (PIX) AND NITROGEN FERTILIZATION LEVELS. Egyptian Journal of Agricultural Research, 78(2), 769-780. doi: 10.21608/ejar.2000.322494
MOHAMED I. M. EL-SHAHAWY; ROSHDY R. ABDEL-MALIK. "RESPONSE OF GIZA 87 COTTON CULTIVAR TO MEPIQUAT CHLORIDE (PIX) AND NITROGEN FERTILIZATION LEVELS". Egyptian Journal of Agricultural Research, 78, 2, 2000, 769-780. doi: 10.21608/ejar.2000.322494
EL-SHAHAWY, M., ABDEL-MALIK, R. (2000). 'RESPONSE OF GIZA 87 COTTON CULTIVAR TO MEPIQUAT CHLORIDE (PIX) AND NITROGEN FERTILIZATION LEVELS', Egyptian Journal of Agricultural Research, 78(2), pp. 769-780. doi: 10.21608/ejar.2000.322494
EL-SHAHAWY, M., ABDEL-MALIK, R. RESPONSE OF GIZA 87 COTTON CULTIVAR TO MEPIQUAT CHLORIDE (PIX) AND NITROGEN FERTILIZATION LEVELS. Egyptian Journal of Agricultural Research, 2000; 78(2): 769-780. doi: 10.21608/ejar.2000.322494

RESPONSE OF GIZA 87 COTTON CULTIVAR TO MEPIQUAT CHLORIDE (PIX) AND NITROGEN FERTILIZATION LEVELS

Article 22, Volume 78, Issue 2, July 2000, Page 769-780  XML PDF (3.07 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2000.322494
View on SCiNiTO View on SCiNiTO
Authors
MOHAMED I. M. EL-SHAHAWY; ROSHDY R. ABDEL-MALIK
Cotton Research Institute, Agricultural Research Centre, Giza, Egypt
Abstract
Three levels of nitrogen 40.60 and 80 kg/fed. were employed with two doses of Pix 11,1-dimethylpiperidinium chloride] (250 and 500 miffed.) plus a non-treated check (water) in 1997 and 1998 seasons. Gin 87 cultivar was used and Pix was sprayed twice at the beginning of flowering stage and 15 days later. Combined data revealed that increasing N level from 40 up to 80 kg/fed. increased final plant height, number of main stem internodeS, sympodia, boll set percentage, earliness percentage, number of open bolls, boll weight, lint percentage and seed cotton yield (kintar/fed), while it decreased main stem internodal length, aborted sites percent‌age and number of unopen boils. N level had no effect on number of monpodia, nodal position of the 1st sympodium and seed index. Comparing with untreated check plants, spraying Pix resulted in decreasing final plant height, number of main stem internodes, monpo‌dia, sympodia, aborted sites percentage and number of unopen bolls/ plant while it increased boll set percentage. earliness percentage, num‌ber of open bolls. boll weight. seed index and seed cotton yield (kintar! fed.). The obtained reductions or increments resulted from Pix spraying were further strengthened as its dose increased from 250 to 500 ml/ fed. Pix treatment had insignificant effect on main stem internodal length and nodal position of the 1st sympodium. The interaction of ni‌trogen level by Pix treatment was not significant for all criteria studied except for seed cotton yield. 
Statistics
Article View: 54
PDF Download: 207