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242479

RESPONSE OF GIZA 89 COTTON CULTIVAR TO FOLIAR APPLICATION OF ASCORBIC ACID, GIBBERELLIC CIO, PHOSPHORUS AND POTASSIUM

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Last updated: 22 Jan 2023

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Abstract

Two field experiments were carried out at Gemmeiza Agricultural Research
Station, Gharbia Governorate during two seasons (2000 and 2001) to study t~e effect
of foliar app6cation with 1000 ppm ascorbic add (AA), 100 ppm gibberellic acia (GAJ),
2% calcium superphosphate (SP) and 2% potassium sulphate (KS) in compartson
with untreated plots (spraying wilh water) as a control on leaf nutrients content,
growth, eerliness, seed cotton yield and yield components of Giza 89 collon cultivar .
The obtained results could be summarized as follows: t-Foliar application of 1000 ppm AA, signirlCanUy Increased leaf N, P, Ca. Fe, Zn and
Mn contents as compared with the control treatment. However, this Ir alment
insignificanlly reduced leaf Cu content and Increased leaf K and Mg contents
compared with the control. This treatment significantly increased also planl height at
harvest as compared with the control treatment or foliar feeding with P or K due to
the number of main stem internodes increase, however. it reduced the average
internode length. In addition, this treatment Significantly increased numbers of total
and open bons! plant, boll weight, seed cotton yieldl plant as well asl reddan as
compared with the control treatment. 2·Foliar application of 100 ppm G~, significantly increased lear macronutrients
content (N, P, K, Ca and Mg) and leaf micronutrlents content (Fe, Zn, Mn and Cu)
as compared wilh the control trealment In both seasons. Also, Ihis treatment
significantly increased plant height at harvest as compared with the other tested
treatments due to a significant increase in each of number of main stem internodes
andlor internode length and number or fruiting branchesl plant. In addit on, this
treatment significantly increased numbers or total and open bollsl plant in the firsl
season and boll weight, seed cotton yieldl plant as well as! fed dan in both easons
as compared with the control trealment. 3-Foliar application of 2% SP increased leaf N, p, Mg and Mn and reduced lear K. Ca. Fe, Zn and Cu contents in both seasons compared with the ccntrot treatrnent This
treatment produced the shortest plants with lower number of shorter internodes
compared with the control treatment. In addition. this treatment increased seed
cotton yield' reddan and its components but to a tess extent, as compared with (he
other tested treatments. 4-Foliar application of 2% KS produced the highest values of leaf N. K, Fe and Mn
contents compared to the other tested treatments, but. decreased leaf Mg content
as compared with the control treatment. Also, this treatment produced pi nts with
the same height of the control plants but significantly increased the numbe of main
~tem intemodes and hence decreased the average lnterncce length compared with
the control. In addition, this treatment signifICantly increased numbers of total and
open bollsl plant, boll weight. seed cotton yieldl plant as well as! feddan compared
with the control treatment. 5-AII treatments had insignificant effect on earliness %, lint %. seed index and
number of seeds! boll.

DOI

10.21608/jpp.2003.242479

Authors

First Name

W.

Last Name

EI-Shazly,

MiddleName

M. O.

Affiliation

Cotton Research Institute, Agricultural Research Center, Ministry of Agriculture, Giza, Egypt.

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Orcid

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First Name

M.

Last Name

EI-Masri

MiddleName

F.

Affiliation

Botany Department, National Research Center, Dokki, Cairo, Egypt

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Volume

28

Article Issue

3

Related Issue

34804

Issue Date

2003-03-01

Receive Date

2003-02-02

Publish Date

2003-03-01

Page Start

1,579

Page End

1,597

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_242479.html

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https://jpp.journals.ekb.eg/service?article_code=242479

Order

2

Type

Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

Publication Link

https://jpp.journals.ekb.eg/

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Article

Created At

22 Jan 2023