Yield Stability in Forage Maize Across Selected Test-Environments

S. H. Mohammed; Maarouf. I. Mohammed

Yield Stability in Forage Maize Across Selected Test-Environments

S. H. Mohammed *

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Maarouf. I. Mohammed

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Yield Stability in Forage Maize Across Selected Test-Environments

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Abstract

Assessing new maize cultivars requires studying both yield and stability performance across the major range of environments. Four trials were conducted in Sudan (Africa) during 2013 -2014. Nine maize genotypes were investigated for forage yield stability across 8 test-environments created by a combination of 2 levels of location, season and watering regime assumed to impose respective effects of salt, heat and water stresses. Wricke’s ecovalence, Eberhart-Russell and AMMI stability models were employed to study yield stability. The genotypes and watering regimes were arranged in RCB design in split-plot experiment. The study revealed maize hybrids having broad and specific responses to the studied environments with most genotypes showing consistent stability performance in the three models. Two of the 3 top-yielding hybrids showed relative stability whereas the third one exhibited specific adaptability to low yielding environments. It was concluded that yield stability could be better investigated if the varieties are purposely subjected to major factors affecting yield in a given domain. Different stability models were recommended to avoid limitations arising from using a single model.

References

13 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

S. H. Mohammed, Maarouf. I. Mohammed. 2020. "Yield Stability in Forage Maize Across Selected Test-Environments". Global Journal of Science Frontier Research - D: Agriculture & Veterinary GJSFR-D Volume 20 (GJSFR Volume 20 Issue D1).

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GJSFR Volume 20 Issue D1

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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Classification

GJSFR-D Classification FOR Code: 820401

070199

Submission ReceivedNovember 21, 2019
Peer Review Double Blind
Handling Editor
Accepted December 16, 2019
Published December 26, 2019

Version of record

v1.2

Issue date

January 30, 2020

Language

English

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