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Zayed,, G., Mohamed, A. (2003). GENOTYPIC AND ENVIRONMENTAL EFFECTS IN SEVEN COWPEA (Vigna unguiculata (L.) WALP) GENOTYPES UNDER NATURAL INFESTATION BY Etieffa zin kenelfa TREITSCKE AT lWO LOCATIONS IN SOUTHERN EGYPT. Journal of Plant Production, 28(3), 1927-1936. doi: 10.21608/jpp.2003.242491
G. A. Zayed,; A. M. Mohamed. "GENOTYPIC AND ENVIRONMENTAL EFFECTS IN SEVEN COWPEA (Vigna unguiculata (L.) WALP) GENOTYPES UNDER NATURAL INFESTATION BY Etieffa zin kenelfa TREITSCKE AT lWO LOCATIONS IN SOUTHERN EGYPT". Journal of Plant Production, 28, 3, 2003, 1927-1936. doi: 10.21608/jpp.2003.242491
Zayed,, G., Mohamed, A. (2003). 'GENOTYPIC AND ENVIRONMENTAL EFFECTS IN SEVEN COWPEA (Vigna unguiculata (L.) WALP) GENOTYPES UNDER NATURAL INFESTATION BY Etieffa zin kenelfa TREITSCKE AT lWO LOCATIONS IN SOUTHERN EGYPT', Journal of Plant Production, 28(3), pp. 1927-1936. doi: 10.21608/jpp.2003.242491
Zayed,, G., Mohamed, A. GENOTYPIC AND ENVIRONMENTAL EFFECTS IN SEVEN COWPEA (Vigna unguiculata (L.) WALP) GENOTYPES UNDER NATURAL INFESTATION BY Etieffa zin kenelfa TREITSCKE AT lWO LOCATIONS IN SOUTHERN EGYPT. Journal of Plant Production, 2003; 28(3): 1927-1936. doi: 10.21608/jpp.2003.242491

GENOTYPIC AND ENVIRONMENTAL EFFECTS IN SEVEN COWPEA (Vigna unguiculata (L.) WALP) GENOTYPES UNDER NATURAL INFESTATION BY Etieffa zin kenelfa TREITSCKE AT lWO LOCATIONS IN SOUTHERN EGYPT

Article 11, Volume 28, Issue 3, March 2003, Page 1927-1936  XML PDF (713.08 K)
Document Type: Original Article
DOI: 10.21608/jpp.2003.242491
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Authors
G. A. Zayed,1; A. M. Mohamed2
1Hcrtlcultura Res. Institute
2Plant Protection Res. Institute, Agric. Res. Center, Egypt.
Abstract
Seven cowpea genotypes (cultlvars and lines) were screened (0 tolerance
to Etiel/a zinckene/la attack at two different locations over two years. It i~ clear that
the variety effecls were significant for all the studied traits. "Kobrosy' e«. produced Ihe
highest values or yield and yield components and it could be recommended as a
commercial variety under the studied conditions. '1T85D-3850-2' line gave the
highest ability to pest tolerance, so, it could be used as a source of pest re istance In
a breeding programmes. Generally. the damaged seeds percentage was higher in
Kena than Sohag region OVer both years of study under the lield conditions (without
any pesticides). however, no significant differences were existed betwaen locations in
this respect. On the other hand. the infested pods percentage was higher in Sohag
Ihan Kena region over the combined data but differential varietal response were
observed from individual environment to another one across fa r studied
environments. High heritability values were obtained in all studied characters -
except- pod length character. The phenotypic and genotypic coefficient of variability
show the obtained results.
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