An Intermediate Testcross Performance of Stress Tolerant Maize (Zea Mayz L) Hybrids Under Stress and Non-Stress Conditions
- Author
- Gavhumende, Tatenda
- Title
- An Intermediate Testcross Performance of Stress Tolerant Maize (Zea Mayz L) Hybrids Under Stress and Non-Stress Conditions
- Abstract
- Estimates of testcross performance are critical for selecting suitable maize hybrids. The testcross performance of 22 stress tolerant hybrids (genotypes) were investigated in this study. The germplasm for all the testcross materials came from the Crop Breeding Institute. Eight check varieties from locally released maize varieties were used. In the summer and winter of 21/2022, eight checks together with 22 hybrids were evaluated in four different sites, both stressed and non-stressed. Significance in grain yield performance under non-stressed environments were observed (P<0.001). Also, significant grain yield performance of maize hybrids under stressed environments were observed (P<0.001). Hybrids (genotypes) 143WH705 and 143WH742 were high yielding and stable across environments and had performed above all checks. Hybrid 143WH728 was comparable in-terms of grain yield to 143WH705 and 143WH742 as well as the check SC725 under non-stress environment. Hybrids 143WH705 and 143WH742 were the best candidates to be grown under stressed environments while hybrid 143WH728 performed well under non-stress environments
- Date
- 2023
- Publisher
- BUSE
- Keywords
- Stress Tolerant Maize (Zea Mayz L)
- Stress and Non-Stress Conditions
- Supervisor
- Mr. Mutsengi
- Item sets
- Department of Crop Sciences
- Media
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Gavhumende - Crop.pdf