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Ullah, K.

Varietal studies on corn leaf aphid, Rhopalosiphum maidis Fitch - 1993 - Printed

1 table, 9 ref. Summary (En)

Experiment was conducted at the N.W.F.P. Agriculture University, Peshawar to test maize cultivars against maize aphid from July to October, 1990. Varietal trial showed that aphid on different maize cultivars ranged from 0 to 200 aphids/plant with a mean range of 3.42 to 42 aphids/plant during the season. Hari showed a maximum aphid density (42.17 per plant) followed by Sarhad white (29.99), Ihsan (27.24), Dehqan (23.36), Azam (21.42), Shaheen (14.16), EV-I (10.93). Gohar showed the least density (3.42). Gohar and Hari both were statistically different from all the other cultivars. Ihsan showed statistical similarity to Sarhad White, Dehqan and Azam. Shaheen And EV-I were statistically similar to each other


English

ISSN: 1016-4383

Subjects--Topical Terms:
Aphididae
Aphidoidea
Asia
Experimentation
Gramineae
Noxious animals
Periodicity
Pests
Pests of plants
Plant genetics and breeding
Resistance to injurious factors
Rhopalosiphum
South Asia
Taxa
Testing
Time
Zea

Dewey Class. No.: 97-032257