TY  - JA
AU  - Ullah,K.
AU  - Fareed,A.
TI  - Varietal studies on corn leaf aphid, Rhopalosiphum maidis Fitch
SN  - 1016-4383
U1  - 97-032257 
PY  - 1993///
KW  - Aphididae
KW  - Aphidoidea
KW  - Asia
KW  - Experimentation
KW  - Gramineae
KW  - Noxious animals
KW  - Periodicity
KW  - Pests
KW  - Pests of plants
KW  - Plant genetics and breeding
KW  - NOT IN AGROVOC
KW  - Resistance to injurious factors
KW  - Rhopalosiphum
KW  - South Asia
KW  - Taxa
KW  - Testing
KW  - Time
KW  - Zea
N1  - 1 table, 9 ref. Summary (En)
N2  - 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
T2  - Sarhad Journal of Agriculture (Pakistan). (Apr 1993). v. 9(2) p. 149-152
ER  -