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243867

Seed Set as Affected by Male to Female Ratio, Male Direction and Different Flowering Date in Hybrid Rice Seed Production

Article

Last updated: 04 Jan 2025

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Abstract

Flowering synchronization between the restorer (R) line (Giza 178) and cytoplasmic male sterile (CMS or A) line (IR58025A) in hybrid rice seed production plot is very needed to achieve greater seed yield. Two-year experiment was carried out at the Experimental Farm of Sakha Agricultural Research Station, Kafr El-Sheikh, Egypt in the 2020 and 2021 seasons. This study aims to examine the effect of male to female ratio (2R:10A, 2R:12A and 2R:14A), male direction (one way and two ways) and differences in days in flowering between male and female (five, two days and without differences) on productivity of hybrid rice seed. A split split-plot design in three replications was utilized. The main plots were the male to female ratio, while male direction was arranged in the sub plot sand the differences in days to flowering were located in the sub-sub plots. The obtained results showed that plant height, panicle exsertion percentage, panicle length and flag leaf angle were not significantly affected by the male to female ratio, male direction and differences in days to flowering. On the other hand, the number of panicles hill-1, panicle weight, seed set percentage, seed yield and harvest index (%) were highly significantly affected by the male to female ratio, male direction and differences in days to flowering. The highest values of seed yield (2.432 and 2.521 t ha-1) were obtained when using the male to female ratio 2R:14A, two-way male direction and without differences in flowering.

DOI

10.21608/jpp.2022.138000.1109

Keywords

Hybrid Rice, Male to Female ratio, Male direction, Differences in days to flowering, seed yield

Authors

First Name

H.

Last Name

Hamad

MiddleName

Sh.

Affiliation

Rice Research and Training Center (RRTC), Field Crops Research Institute, Agricultural Research Center, Giza, Egypt

Email

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City

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Orcid

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First Name

E.

Last Name

Gewaily

MiddleName

E.

Affiliation

Rice research department, Field crops research institute, Agricultural research center.

Email

sgewaily@yahoo.com

City

-

Orcid

-

First Name

Neama

Last Name

El-Kholly

MiddleName

K.

Affiliation

Rice Research and Training Center (RRTC), Field Crops Research Institute, Agricultural Research Center, Giza, Egypt

Email

neamaelkholy04@gmail.com

City

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Orcid

-

First Name

Haba

Last Name

Elsherbiny

MiddleName

A.

Affiliation

Rice Research and Training Center (RRTC), Field Crops Research Institute, Agricultural Research Center, Giza, Egypt

Email

haba.elsherbiny2010@yahoo.com

City

-

Orcid

-

Volume

13

Article Issue

5

Related Issue

34913

Issue Date

2022-05-01

Receive Date

2022-06-14

Publish Date

2022-05-01

Page Start

167

Page End

173

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_243867.html

Detail API

https://jpp.journals.ekb.eg/service?article_code=243867

Order

4

Type

Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

Publication Link

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

MainTitle

Seed Set as Affected by Male to Female Ratio, Male Direction and Different Flowering Date in Hybrid Rice Seed Production

Details

Type

Article

Created At

22 Jan 2023