Growth, yield and fiber quality characteristics of Bt and non-Bt cotton cultivars in response to boron nutrition

作     者：MEHRAN Muhammad ASHRAF Muhammad SHAHZAD Sher Muhammad SHAKIR Muhammad Siddique AZHAR Muhammad Tehseen AHMAD Fiaz ALVI Alamgir MEHRAN Muhammad;ASHRAF Muhammad;SHAHZAD Sher Muhammad;SHAKIR Muhammad Siddique;AZHAR Muhammad Tehseen;AHMAD Fiaz;ALVI Alamgir

作者机构：Department of Soil ScienceBahauddin Zakariya UniversityMultanPakistan Department of Soil and Environmental SciencesCollege of AgricultureUniversity of SargodhaSargodhaPakistan Pesticide Residue LaboratoryKala Sha KakuPakistan Department of Plant Breeding and GeneticsUniversity of AgricultureFaisalabadPakistan Physiological/Chemistry SectionCentral Cotton Research InstituteMultanPakistan Soil and Water Testing LaboratoryJhelumPakistan School of Agricultural ScienceZhengzhou UniversityZhengzhou450000China 

出 版 物：《Journal of Cotton Research》 (棉花研究（英文）)

年 卷 期：2023年第6卷第1期

页      面：1-12页

学科分类：09[农学] 0901[农学-作物学] 

基　　金：Central Cotton Research Institute 

主　　题：Boron Cotton Fiber length Fiber strength GOT Micronaire value Seed cotton yield 

摘      要：Background Boron(B)deficiency is an important factor for poor seed cotton yield and fiber ***,it is often missing in the plant nutrition program,particularly in developing *** current study investigated B’s effect on growth,yield,and fiber quality of Bt(CIM-663)and non-Bt(Cyto-124)cotton *** experimental plan consisted of twelve treatments:Control(CK);B at 1 mg·kg^(−1) soil application(SB1);2 mg·kg^(−1) B(SB2);3 mg·kg^(−1) B(SB3);0.2%B foliar spray(FB1);0.4%B foliar spray(FB2);1 mg·kg^(−1) B+0.2%B foliar spray(SB1+FB1);1 mg·kg^(−1) B+0.4%B foliar spray(SB1+FB2);2 mg·kg^(−1) B+0.2%B foliar spray(SB2+FB1);2 mg·kg^(−1) B+0.4%B foliar spray(SB2+FB2);3 mg·kg^(−1) B+0.2%B foliar spray(SB3+FB1);3 mg·kg^(−1) B+0.4%B foliar spray(SB3+FB2).Each treat-ment has three replications,one pot having two plants per *** B nutrition at all levels and methods of application significantly(P≤0.05)affected the growth,physiological,yield,and fiber quality characteristics of both cotton ***,SB2 either alone or in combination with foliar spray showed superiority over others,particularly in the non-Bt cultivar which responded better to B ***-mum improvement in monopodial branches(345%),sympodial branches(143%),chlorophyll-a(177%),chlorophyll-b(194%),photosynthesis(169%),and ginning out turn(579%)in the non-Bt cultivar was found with SB2 compared with *** Bt cultivar,although no consistent trend was found but integrated use of SB3 with foliar spray performed relatively better for improving cotton growth compared with other *** quality characteristics in both cultivars were improved markedly but variably with different B *** B nutrition with SB2 either alone or in combination with foliar spray was found optimum for improving cotton’s growth and yield characteristics.