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110578

Hybrid Rice Seed Production as Affected by Sowing Dates, Seedling Ages and Male Rows Direction

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Last updated: 04 Jan 2025

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Abstract

Two field experiments were conducted at the Experimental Farm of Sakha Agricultural Research Station, Kafr EL Sheikh, Egypt during 2018 and 2019 rice growing seasons, to study the effect of three sowing dates viz; April 20th, May 5th and May 20th, three seedling ages namely; 20, 30 and 40 days and male rows direction; one and two directions on out crossing of hybrid rice seed production of the CMS line IR69625A crossed by the male line Giza 178R. Split-split plot design with three replications was used. The main plots were devoted to the sowing dates, while the seedling ages were arranged in the sub plots and male rows direction were arranged in the sub-sub plots. The results showed that the interaction between sowing dates and seedling ages had a significant effect on number of days to 50% heading, plant height (cm), panicle length (cm) and panicle exertion (%), however, these traits   didn't  significantly affected by male rows direction. On the other hand, panicle weight (g), number of filled grains panicle-1, seed set (%), harvest index (%) and seed yield (t ha-1) were  significantly affected by sowing dates, seedling ages and male rows direction. The interactions among sowing dates, seedling ages and male rows direction had highly significant effect on seed yield. The highest values of seed yields were obtained when rice plants were sowing on April, 20  with seedling age 20 days in two rows direction during 2018 and 2019 seasons.

DOI

10.21608/jpp.2020.110578

Keywords

Hybrid, rice, (CMS), sowing dates, Seed Set

Authors

First Name

H. Sh.

Last Name

Hamad

MiddleName

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Affiliation

Rice Research Department, Field Crops Research Institute, Agricultural Research Center, Egypt.

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Orcid

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First Name

S. M.

Last Name

Bassiouni

MiddleName

-

Affiliation

Rice Research Department, Field Crops Research Institute, Agricultural Research Center, Egypt.

Email

sherif_maher2002@yahoo.com

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Volume

11

Article Issue

7

Related Issue

16772

Issue Date

2020-07-01

Receive Date

2020-07-13

Publish Date

2020-07-01

Page Start

661

Page End

667

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_110578.html

Detail API

https://jpp.journals.ekb.eg/service?article_code=110578

Order

13

Type

Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

Publication Link

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

MainTitle

Hybrid Rice Seed Production as Affected by Sowing Dates, Seedling Ages and Male Rows Direction

Details

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Article

Created At

22 Jan 2023