Combined Application of Biostimulants and EDTA Improved Wheat Productivity under Cadmium Stress  

作　　者：Abida Aziz Shafiqa Bano Mubshar Hussain Muhammad Farooq Azhar Ghulam Yasin Naila Hadayat Iqra Arooj Abeer Hashem Ajay Kumar Elsayed Fathi Abd_Allah Qamar uz Zaman 

机构地区：[1]Department of Botany,The Women University,Multan,54500,Pakistan [2]Institute of Agronomy,Bahauddin Zakariya University,Multan,60800,Pakistan [3]Department of Forestry and Range Management,Bahauddin Zakariya University,Multan,60800,Pakistan [4]Department of Botany,Division of Science&Technology,University of Education,Lahore,54770,Pakistan [5]Department of Microbiology&Molecular Genetics,The Women University,Multan,54500,Pakistan [6]Botany and Microbiology Department,College of Science,King Saud University,Riyadh,201313,Saudi Arabia [7]Amity Institute of Biotechnology,Amity University,Noida,201313,India [8]Plant Production Department,College of Food and Agricultural Sciences,King Saud University,Riyadh,11451,Saudi Arabia [9]School of Agriculture,Yunnan University,Kunming,Yunan,650504,China [10]Department of Environmental Sciences,The University of Lahore,Lahore,54590,Pakistan

出　　处：《Phyton-International Journal of Experimental Botany》2024年第7期1647-1665,共19页国际实验植物学杂志（英文）

基　　金：The authors would like to extend their sincere appreciation to the Researchers Supporting Project Number(RSP2024R356),King Saud University,Riyadh,Saudi Arabia.

摘　　要：Wheat(Triticum aestivum L.)exhibits a greater capacity for cadmium(Cd)absorption compared to other cereal crops,leading to elevated daily Cd intake,and posing a significant threat to public health.For the mitigation of Cd stress in sustainable and environmentally friendly way,a pot study was designed by using exogenous application of various biostimulants,i.e.,Nigella sativa and Ocimum sanctum extracts:0%,10%,and 20%in combination with the chelating agent ethylenediaminetetraacetic acid(EDTA)using 0 and 5 mg kg^(-1) under various levels of Cd stress(i.e.,0,5,10,and 15 mg kg^(-1) soil).Results revealed that Cd stress significantly reduced the seed emergence,growth,root,and allometric characters and yield-related parameters of wheat crops.The most observable reduc-tion was documented in wheat plants exposed to a higher Cd concentration(15 mg kg^(-1)),followed by the lower Cd level(control).The combined application of bio-stimulants and EDTA minimized the negative impacts of Cd stress.The highest increase in seedling emergence(5.44%),leaf area(50.60%),number of tillers(31.02%),grain yield per plant(24.28%),biological yield(13.97%),and decrease in Cd levels in grains(40%)was noticed where 20%foliar application of N.sativa and 10%of O.sanctum biostimulants were done using 5 mg kg^(-1) of soil-applied EDTA.This intervention demonstrated a notable reduction in Cd-induced negative effects,highlighting the potential of these substances in promoting sustainable wheat cultivation in contaminated environments.Moreover,it is an eco-friendly and approachable method at thefield level able to ensure food safety.

关 键 词：Abiotic stress allometric characters antioxidant activity crop yield seed emergence grain yield 

分 类 号：S512.1[农业科学—作物学]