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342451

IMPACT OF PLANT POPULATION DENSITY THROUGH ROW AND HILL SPACINGS UNDER DIFFERENT NITROGEN LEVELS ON GIZA 89 COTTON CULTIVAR

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Last updated: 24 Dec 2024

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Abstract

Two field trials were carried out at Sakha Agricultural Research Station during 1996 and 1997 seasons, using the new cotton cultivar Giza 89 which was planted on ridges 60 cm x 20 cm/one side, 60 cm x 25 cm/one side, 90 cm x 20 cm/two sides and 90 cm x 25 cm/two sides as main plots and received three N levels 40, 60 and 80 kg/f. as sub-plots. Combined data revealed that growing cotton plants on ridges 60 cm at one side (low stands) increased final plant height, number of monopodia and sympodia, lateral root ranks, root volume, additional fruiting branch bolls, retained bolls, fruiting sites, earliness %, open bolls, boll weight and seed cotton yield, while it decreased numbers of aborted sites, first sympodial position, percentage of bolls on monopodia, uno­pen boils and percentage of plant losses at harvest, compared with planting on ridges 90 cm at both sides either at 20 or 25 cm hill spac­ing. Nitrogen application up to 80 kg/f. induced maximum values of final plant height, number of both monopodia and sympodia, aborted sites, additional fruiting branch boils, retained bolls, fruiting ites, first sympodia( position, percentage of bolls on monopodia, unopen bolls and boll weight. Adding 60 kg N/f. resulted in higher number of open bolls and seed cotton yield (Kintar/f.). N application had no influence on num­ber of lateral root ranks, root volume and percentage of plant losses at harvest. The interaction between sowing pattern and N level had insig­nificant effect on all traits studied in this study.

DOI

10.21608/ejar.1999.342451

Authors

First Name

ROSHDY R.

Last Name

ABDEL-MALIK

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Affiliation

Cotton Research institute, Agricultural Research Centre, Giza, Egypt

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First Name

MOHAMED I. M.

Last Name

EL-SHAHAWY

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Affiliation

Cotton Research institute, Agricultural Research Centre, Giza, Egypt

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Volume

77

Article Issue

4

Related Issue

45828

Issue Date

1999-12-01

Receive Date

1998-09-22

Publish Date

1999-12-01

Page Start

1,753

Page End

1,767

Print ISSN

1110-6336

Online ISSN

2812-4936

Link

https://ejar.journals.ekb.eg/article_342451.html

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https://ejar.journals.ekb.eg/service?article_code=342451

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28

Type

Original Article

Type Code

1,041

Publication Type

Journal

Publication Title

Egyptian Journal of Agricultural Research

Publication Link

https://ejar.journals.ekb.eg/

MainTitle

IMPACT OF PLANT POPULATION DENSITY THROUGH ROW AND HILL SPACINGS UNDER DIFFERENT NITROGEN LEVELS ON GIZA 89 COTTON CULTIVAR

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Article

Created At

24 Dec 2024