

Articles
by
Naheed Akhtar Awan 
Total Records (
3 ) for
Naheed Akhtar Awan 





Muhammad Aslam
and
Naheed Akhtar Awan


Sunflower plants also attract tremendous number of insects of beneficial nature (predators, parasites and pollinators including honey bees). To see which beneficial insects are attracted to which genotypes and to what extent, observations were made on different genotypes of sunflower and the bee pollinators (melittophily) and aphid feeders, Coccinella spp. (aphidophagy) found on different genotypes were recorded. The highest number of honey bees (Apis spp.) was attracted to Suncross24 and the lowest to SF187. On SMH9706, SMH9707, Parasun1, SF187 and Hysun33, the number of honey bees attracted was the lowest. It was concluded that SMH9707 attracted the highest number of lady bird beetles (Coccinella spp.).The genotypes SMH9706, Parasun1, SF187, Hysun33 and Suncross24 attracted statistically equal number of lady bird beetles. Hysun33 had the highest number of aphids (Aphis gossypii) and on all other genotypes except SMH 9707, the number of aphids was intermediate. SMH 9707 had significantly lower number of aphids than Hysun33. The lady bird beetles were found feeding on aphids on different genotypes of sunflower. These beneficial insects helped regulate the population of insect pests and also helped in the pollination of sunflower plants. 




Naheed Akhtar Awan
and
Abdul Khaliq


Thirty four maize cultivars were evaluated to observe their relative resistance against
maize stem borer (Chilo partellus ) during Kharif, 2001. The varieties studied were
Sarhad Yellow, EV1097, Kissan, Babar, Agaiti85, Gauhar, Margala, EV2097, NC Br1, NC BR2, C 676528, NARC 25 FI, NARC 2511, NARC 25 122, NARC 25 122,
NARC 25 1221, C 67659, C 676511, C 676540 I, C 676540, C 676524, C 676528L, C 676529, C 17511473 I, C 1751542, C 175223, C 1752162 I, C 1752232
I, C 1752433 I, C 1752442 L, C 1752142, C 1752161, C 1752173 and NARC
25 E. Variety EV2097 was found to be most susceptible with 3.57% tassel infestation.
Varieties NC BR1, NARC 25 F I, NARC 25 11, NARC 25 122, NARC 25 122
I, C 676540 I, C 676524, C 676524, C 676528 L, C 676529, C 17511473 I, C
1751542, C 1652442 L and C 1752173 were found to be resistant. The maximum
percentage of dead hearts (3.56%) was recorded on EV2097 and was observed as most
susceptible variety. The highly resistant varieties with 0.707% dead hearts include
NARC 25 F I, NARC 25 11, NARC 25 122, NARC 252 I, C 676528 L, C 676540
I, C 1752232 I and C 1752442 L. 




Naheed Akhtar Awan
and
Abdul Khaliq


Thirty four Maize cultivars were evaluated to observe their relative resistance against
maize stem borer Chilo partellus (Swinhoe). The varieties studied were Sarhad Yellow,
EV1097, Kissan, Babar, Agaiti85, Gauhar, Margala, EV2097, NC BR1, NC BR2,
C676528, NARC 25 FI, NARC 2511, NARC 25 122, NARC 25 122I, C67659, C
676511, C676540 I, C 676540, C 676554 L, C 676524, C 676528L, C676529, C
17511473 I, C 1751542, C 1751223, C 1752162 I, C 1752232 I, C 1752433 I,
C 1752442 L, C 1752142, C 1752161, C 1752173 and NARC 25 E. In case of
stem damage, EV2097 with damage of 4.479% was comparatively susceptible. Varieties
that showed more resistance were NARC 25 F I, NARC 25 11, NARC 25 122, NARC
25 122 I, C 67659, C 676511, C 676540 I, C 676554 L, C 676524, C 676528 L, C
676529, C 17511473 I, C 1751542, C 1752162 I, C 1752433 I, C 1752442 L
and C 1752161 with 0.707% stem damage. In case of difference in the height of healthy
and damaged plants, the maximum difference of 33 cm was found in C 17511473 I and
NARC 25 F I whereas the minimum difference of 5 cm was observed in C 1751223. 





