Usman Ali Abbasi

Dr. Usman Ali Abbasi


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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MKMuhammad Umair Arif Khan
Muhammad Umair Arif Khan
Muhammad Azam KhanMuhammad Azam Khan
Muhammad Azam Khan
UAUsman Ali Abbasi
Usman Ali Abbasi
MAMuhammad Amin
Muhammad Amin
TKTahira Kalsoom
Tahira Kalsoom
BSBasit Shahzad
Basit Shahzad
Crop growth and yield are influenced by the genetic potential of the cultivar, soil, weather, and cultivation practices, i.e., sowing date, irrigation and fertilizer amount, and biotic stresses. Temporal variation in yield and growth has been largely forecasted using climate as a predictor, which can be achieved by using either an empirical or crop simulation approach for a given location. Climate and soil data collected over agricultural land regularly aid in crop growth monitoring, as well as crop vitality assessment. Crop simulation models (CSM) that have been successful in field-scale applications are now being implemented in GIS framework to simulate and monitor crop growth with remote sensing inputs, allowing for sensitive evaluations of seasonal weather conditions, local variability, and crop management signals. This research was designed to monitor the growth of three varieties of kiwifruit, i.e., Hayward grafted, Green-flesh, and Hayward, in four different localities: Hazaro (Attock), Simli Dam (Pind Begwal), GPU (germ plasm unit) Arid Agriculture University Rawalpindi and ZTBL (Zarai Taraqiati Bank Limited) Farm Islamabad, each of which has different soil and weather conditions. Soil proximal sensors were used to measure soil characteristics, and data loggers were installed in each field to monitor the weather parameters to collect data that influences crops. In this study, we used a quantitative method and GIS-integrated data to assess the impact of soil and climate on kiwifruit growth. It can help policy makers and researchers to identify new agro-climatic zones in Pakistan’s semi-arid regions for kiwifruit farming based on this data. In this study, we found that kiwi is very susceptible to temperatures above 40 °C, which cause mortality in kiwifruits plants. Morphological data with respect to soil and climate results showed that green-fleshed and Hayward varieties performed slightly better than Hayward grafted, which was most susceptible to diseases and heat damage.

4 January 2026 in Physical Education, Health and Social Sciences
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Journal Article
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UAUsman Ali Abbasi
Usman Ali Abbasi
HAHassan Rehman Ali
Hassan Rehman Ali
KAKhatir Ali
Khatir Ali
AAAwais Ahmed
Awais Ahmed
AJAmeer Jan
Ameer Jan
Late blight, caused by the hemibiotrophic oomycete Phytophthora infestans, remains the most destructive disease of potato (Solanum tuberosum L.), historically responsible for the Irish Potato Famine and currently inflicting global economic losses of approximately $12 billion annually through direct yield destruction and intensive fungicide use. This comprehensive review synthesizes recent advances in understanding host–pathogen interactions, molecular diagnostics, and novel breeding strategies aimed at achieving durable, broad-spectrum resistance. The pathogen’s sophisticated effector arsenal (RXLR and Crinkler families) and rapid evolutionary adaptability are countered by potato NLR (nucleotide-binding leucine-rich repeat) resistance (Rpi) genes sourced from diverse wild Solanum relatives. Cutting-edge diagnostic tools including qPCR, ddPCR, LAMP, RPA, and NGS-based RenSeq/SMRT-AgRenSeq enable rapid, field-deployable early detection of P. infestans and high-throughput mining of functional R genes. Novel breeding approaches encompass marker-assisted selection (MAS), genomic selection (GS), gene pyramiding, cisgenesis, and precise CRISPR/Cas9-mediated knockout of susceptibility (S) genes such as StDMR6-1, StNRL1, and StDND1, which confer multi-pathogen resistance without yield penalties. Host-induced gene silencing (HIGS/RNAi) further augments protection by targeting essential pathogen genes. Integration with precision agriculture technologies spore trapping, AI-powered image recognition (CNNs achieving >97% accuracy), and digital-twin modeling facilitates proactive, reduced-input management. Global field trials of 3R-gene stacked varieties have demonstrated complete resistance under high disease pressure, delivering substantial socio-economic benefits. Collectively, the synergistic deployment of these molecular and digital tools marks a paradigm shift from reactive chemical control to sustainable, resilient potato production capable of withstanding evolving pathogen populations and climate pressures.

13 November 2024
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Journal Article
Open access
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MFMuhammad Farhan
Muhammad Farhan
UAUsman Ali Abbasi
Usman Ali Abbasi
RSRizwan Ali Sheirdil
Rizwan Ali Sheirdil
SASalman Abbas
Salman Abbas
KSKainat Sajjad
Kainat Sajjad
SAShabbir Ahmad
Shabbir Ahmad
Blackberries hold a significant economic importance, renowned for its high nutritional content. Blackberries have shorter shelf life due to high metabolic activity, typically ranging from 2 days at 0℃.