Factors Responsible for Resistance in Okra against Aphid, Aphis Gossiypii Glover (Homoptera: Aphididae)

Authors

Shazia Rehman, Department of Plant Protection, The University of Agriculture, Peshawar, PakistanFollow
Bashir Ahmad, Department of Plant Protection, The University of Agriculture, Peshawar, PakistanFollow
Rashid Khan, Horticulture Section, Agriculture Research Institute, Dera Ismail Khan-29050, PakistanFollow
Muhammad Ilyas, Department of Forestry, Bahauddin Zakariya University Multan, PakistanFollow
Ayesha Irum, Agricultural Biotechnology Research Institute, Ayub Agricultural Research Institute Faisalabad, PakistanFollow
Muhammad Arif, Horticulture section, Agriculture Research Institute Dera Ismail Khan-29050, PakistanFollow
Imtiaz Khan, PARC Adaptive Research cum Demonstration Institute Miranshah-28200, PakistanFollow
Sehrish Jamil, Soil and Water Testing Lab Bahawalnagar-62300- PakistanFollow
Muhammad Muzaffar Raza, Vegetable Research Institute, Ayub Agricultural Research Institute, Faisalabad, PakistanFollow
Muhammad Jamil, PARC Arid Zone Research Center, Dera Ismail Khan, PakistanFollow
Noor Muhammad, Department of Plant Protection, The University of Agriculture, Peshawar, PakistanFollow
Faran Muhammad, Cereal Crops Section, Agriculture Research Institute, Dera Ismail Khan, PakistanFollow

Abstract

Aphids are herbivores that feed on plant’s sap and are widespread throughout the globe. To assess the factors affecting the infestation of Aphis gossypii (Glover) and to use antixenosis a trial was conducted using 5 okra genotypes (Sabz Pari, Advanta, Durga, Kaveri, and Shandar) during spring, 2017 at “Agriculture Research Institute” (ARI) Tarnab, under Random Complete Block Design (RCBD) in field and Completely Randomized Design (CRD) in lab with 3 and 8 replications, respectively. Weekly data gathering for mean percent infestation of A. gossypii on each genotype to note variation among genotypes. The aphid infestations (2.5 Aphid leaf^-1) recorded on Shandar was higher than others and lowest (2.0 Aphids leaf^-1) was recorded on Durga. Initially the infestation was lesser (0.5) but with time it reaches to peak (3.62) on 1^st May and then gradually declined to least (2.0 aphid leaf^-1) in the 10^th week. A statistically significant negative relationship existed between aphid abundance and crop yield. In the antixenosis trial, the Durga variety showed significant antixenosis resistance towards aphids after 12, 24, and 48 hours. Furthermore, the maximum yield of Durga variety (8.3 Tons (t)/ha) and the least yield (5.2 tons/ha) Shandar was obtained. Relating to aphid infestation and yield, the Durga variety performed exceptionally well. It is concluded from the results that the varieties showing antixenosis resistance towards insects must be recommended to not only reduce insect attacks but also to enhance yield.

Article History

Received: Oct 03, 2022; Accepted: Dec 12, 2022; Published: Dec 31, 2022

Recommended Citation

Rehman, S., Ahmad, B., Khan, R., Ilyas, M., Irum, A., Arif, M., Khan, I., Jamil, S., Raza, M. M., Jamil, M., Muhammad, N., & Muhammad, F. (2022). Factors Responsible for Resistance in Okra against Aphid, Aphis Gossiypii Glover (Homoptera: Aphididae), Journal of Bioresource Management, 9 (4).