SCREENING TEN BARLEY GENOTYPES FOR YIELDING PO‌TENTIAL AND RESISTANCE TO APHID INFESTATION IN MIDDLE EGYPT.

ABDEL-HAMID, MAHFOZ; EL-BAWAB, AHMED M. D.; MARZOUK, IBRAHIM A.; EL-HARIRY, MAGDY A.

doi:10.21608/ejar.1997.410330

SCREENING TEN BARLEY GENOTYPES FOR YIELDING PO‌TENTIAL AND RESISTANCE TO APHID INFESTATION IN MIDDLE EGYPT.

Document Type : Original Article

Authors

¹ Field Crops Research Institue, Agricultural Research Centre, Giza, Egypt

² Plant Protection Research Institute, Agricultural Research Centre, Giza, Egypt

10.21608/ejar.1997.410330

Abstract

Two field experiments were conducted in Mallawi Agricultural Research Station, El-Minis Governorate in Middle Egypt, during the two growing seasons 1994/1995 and 1995/1996 to evaluate ten introduced barley genotypes for high yielding potential and resistance to the corn leaf aphid (Ropalosiphum maidis F.). Local variety Giza 124 was used as check. The results revealed that three genotypes (No. 21, 22 and 62) were resistant to aphids. Genotypes No. 21 and 22 possessed high yielding potential with high resistance to aphids. The tallest genotype was No. 24, while the longest spike came from genotype No. 15. The heaviest grains was obtained from genotypes No. 10 and 15. Genotypes No. 21, 15, 62 and 22 had the highest tillering capacity as well as number of spikes/unit area and straw yield (ton/fecl). Genotypes No. 10, 24, 21 , 22 and 27 proved high potentiality and moderate resistance to aphids under Middle Egypt conditions.