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69750

Sequential Path Analysis for Determining the Interrelationships between Yield and its Components in Peanut

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Agronomy

Abstract

THE CURRENT work was carried out at the Agriculture Research Station of East Al-Eweinat, New Valley Governorate to evaluate the yield potential of 16 peanut genotypes during 2016 and 2017 growing seasons. The used experimental design was a randomized complete block design with three replicates. Correlation coefficients were computed between pod yields and its related attributes as well as normal and sequential path analysis models were automated to obtain information on the direct and indirect effects of important traits affecting pod yields for using them as selection criteria in future peanut breeding programs. Results showed that genotypes 7, 11 and 16 produced the heaviest pod yields while genotypes 13 and 15 recorded the lowest pod yields. Concerning the normal path analysis model, several undesirable symptoms were obtained indicating the presence of multicollinearity problem. Subsequently, the poor estimators of normal path analysis model, as a result of multicollinearity, enough to reject the normal form of path analysis. Statistically, more precise results were obtained using the sequential path analysis model. Results revealed that the pod yields depended primarily upon pod weight per plant and number of pods per plant as first-order variables accounted for nearly 98% of the variation in pod yields. The maximum positive direct effects were obtained by pods weight per plant (0.91) followed by number of pods per plant (0.14) indicting that the indirect selection for pod yields through these traits would be effective for peanut improvement. The second-order path analysis showed that seeds weight per plant had the considerable positive direct and indirect effects toward each of number of pods per plant and pods weight per plant. In fact, the sequential path analysis gave a somewhat different picture from what the normal model path analysis did.

DOI

10.21608/agro.2020.21968.1201

Keywords

Peanut, Selection criterion, Sequential Path Analysis

Authors

First Name

M. W. Sh.

Last Name

Mahmoud

MiddleName

-

Affiliation

Oil Crops Section, Field Crop Research Institute, Agricultural Research Center (ARC), Giza, Egypt

Email

elsayedaliabdelhamid@gmail.com

City

-

Orcid

-

First Name

Eman

Last Name

Hussein

MiddleName

-

Affiliation

Central Laboratory for Design and Statistical Analysis Research, Agricultural Research Center (ARC), Giza, Egypt

Email

mo_eman@hotmail.com

City

-

Orcid

-

First Name

Karim

Last Name

Ashour

MiddleName

-

Affiliation

Department of Mathematical Statistics, Faculty of Graduate Studies for Statistical Research, Cairo University, Giza, Egypt

Email

karim_statistic@yahoo.com

City

-

Orcid

-

Volume

42

Article Issue

1

Related Issue

12934

Issue Date

2020-04-01

Receive Date

2020-01-05

Publish Date

2020-04-01

Page Start

79

Page End

91

Print ISSN

0379-3575

Online ISSN

2357-0288

Link

https://agro.journals.ekb.eg/article_69750.html

Detail API

https://agro.journals.ekb.eg/service?article_code=69750

Order

6

Type

Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

https://agro.journals.ekb.eg/

MainTitle

Sequential Path Analysis for Determining the Interrelationships between Yield and its Components in Peanut

Details

Type

Article

Created At

22 Jan 2023