Response of Abiotic Factors and Physico-Morphic Characters on Population Fluctuation of Jassid, Amrasca biguttella biguttela on Traditional and Transgenic Cultivars of Cotton
Response of Abiotic Factors and Physico-Morphic Characters on Population Fluctuation of Jassid, Amrasca biguttella biguttela on Traditional and Transgenic Cultivars of Cotton
Muhammad Afzal1*, Muhammad Imran1, Habib Anwar1, Sohail Alam3, Khuram Zia2, Shafqat Saeed4, Hasan Riaz4, Muhammad Ishtiaq4, Muhammad Saleem5 and Muhammad Qasim6
ABSTRACT
The jassid, Amrasca devastans (Dist), is a significant pest causing serious infestations in cotton crops. Various chemical insecticides have been employed for its management; however, these chemicals negatively impact beneficial insects, lead to insecticide resistance, and degrade the environment. In contrast, host plant resistance is considered a highly effective strategy for jassid management. The present research was conducted on the field of farmer in tehsil Raiwind, district Lahore, Punjab, Pakistan from July to November during 2021-2022 to evaluate the resistance and susceptibility of transgenic cotton cultivars (AA-703, AA-802, SITARA-08, FH-113, CRSM-07) and traditional cultivars (CIM-496, FH-1000, FH-941, FH-942, FH-901) against jassid infestations. Data on jassid populations were recorded per leaf across various cultivars, and the mean values from different observation dates were correlated with weather factors such as temperature, relative humidity, and rainfall. The experiment was laid out in a randomized complete block design (RCBD) with three replications of the designated transgenic and traditional cultivars. The results of the comparative mean data indicated that traditional cultivars were more susceptible to jassid infestations compared to transgenic cultivars. A significant positive correlation was observed between temperature and jassid population, while relative humidity and rainfall exhibited negative and non-significant correlations with jassid populations. Furthermore, the correlation between jassid populations and physico-morphic traits of transgenic and traditional cultivars showed that jassid populations had a non-significant negative correlation with the density of hairs, gossypol glands, and hair length, while a significant negative correlation was observed with the leaf lamina thickness of the cultivars. Based on these findings, it is proposed that considering the physico-morphic traits of cotton plants and transitioning from traditional to transgenic cultivars can be an effective strategy for the sustainable management of insect pests.
To share on other social networks, click on any share button. What are these?
