Problems with wide table with two bold rows

Question

I am currently writing my Master Thesis in Latex and I have a wide table, which it's in landscape mode. Also, in the Table, there is two rows which are entirely in bold: the header row and last row. I follow this question's answer Make first row of table all bold and it worked for the first row, however not for the last one.

For the first row all columns are bold, but for the last, only the first is bold.

Can anyone help me, please? I am using LuaLatex and Miktex 2.9.

My MWE is:

\documentclass[ 
    11pt,                       
    a4paper,                    
    BCOR=15mm,                  
    bibliography=totoc,         
    DIV=9,                      
    final,                      
    headings=optiontohead,      
    listof=chaptergapsmall,     
    listof=totoc,               
    numbers=noenddot,           
    openright,                  
    parskip=half,               
    titlepage,                  
    twoside,                        
]{scrreprt}
%------------------------------
% DOCUMENT AND ENCODING
%------------------------------
\usepackage[
    english,                
    ngerman                 
]{babel}                    
\usepackage{datetime}       
\usepackage[
    T1                      
]{fontenc}                  
\usepackage[
    utf8                    
]{inputenc}                 
\usepackage[
    automark,               
    ilines                  
]{scrlayer-scrpage}

%------------------------------
% Tables
%------------------------------
\usepackage{booktabs}       
\usepackage{longtable}      
\usepackage{multirow}       
\usepackage{tabularx}       

%------------------------------
% GRAPHICS
%------------------------------
\usepackage{graphicx}       
\usepackage{overpic}        

%------------------------------
% FONT, MATH, AND SYMBOLS
%------------------------------
\usepackage{amsmath}        
\usepackage{amssymb}        
\usepackage[
    makeroom                
]{cancel}                   
\usepackage{chemfig}        
\usepackage{empheq}         
\usepackage{icomma}         
\usepackage{mathptmx}       
\usepackage[
    sc,                     
    osf                     
]{mathpazo}                 
\usepackage{mathtools}      
\usepackage[
version=4                   
]{mhchem}                   
\usepackage{nicefrac}       
\usepackage[
    output-decimal-marker={,}, 
    range-phrase={--},      
    range-units=single,     
    output-exponent-marker=\text{E}, 
    retain-explicit-plus    
]{siunitx}                  

%------------------------------
% TEXT
%------------------------------
\usepackage{blindtext}      
\usepackage[
    font={small,it},        
    labelfont=bf,           
    textformat=period,      
]{caption}                  
\usepackage{enumitem}       
\usepackage{footnote}       
\usepackage[
    framemethod=TikZ
]{mdframed}                 
\usepackage[all]{nowidow}   
\usepackage{placeins}       
\usepackage[
    onehalfspacing          
]{setspace}                 
\usepackage{subcaption}     
\usepackage{xcolor}         

%------------------------------
% References
%------------------------------
\usepackage[
    backref=true,           
    backrefstyle=three,     
    bibencoding=utf8,       
    citestyle=authoryear,   
    defernumbers=true,      
    date=year,              
    doi=true,               
    giveninits=true,        
    hyperref=true,          
    isbn=true,              
    maxbibnames=99,         
    sortlocale=auto,        
    style=authoryear,       
    uniquename=init,        
    url=true                
]{biblatex}
\usepackage[
    babel=true,             
    strict=true,
    english=american,       
    german=guillemets       
    ]{csquotes}             

%------------------------------
% LISTS OF SYMBOLS AND ABBREVIATIONS
%------------------------------
\usepackage[]{acronym}      
\usepackage[
    intoc,                  
    english                 
]{nomentbl}                 

%------------------------------
% CODE
%------------------------------
\usepackage{listings}       
\usepackage{scrhack}        

%------------------------------
% HYPERREF
%------------------------------
\usepackage[
    bookmarks,
    bookmarksopen=true,
    colorlinks=false,
    linkcolor=black,         
    anchorcolor=black,      
    citecolor=blue,         
    filecolor=magenta,      
    menucolor=black,        
    linkbordercolor=red,    
    citebordercolor=blue,   
    urlbordercolor=cyan,    
    %pagebackref,           
    pdfpagelabels,          
    hypertexnames=true,     
    linktocpage,            
]{hyperref}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[colorinlistoftodos]{todonotes}
\usepackage{tablefootnote}
\usepackage{lscape}
\usetikzlibrary{intersections, calc}
\usepackage{filecontents}
\usepackage{adjustbox}
\usepackage{array}
%\usepackage{subfig}
\usepackage{filecontents}
\usepackage{tikz,pgfplots}
\usepackage{soul}
%\usepackage[backend=bibtex,style=numeric-comp,natbib=true,sorting=none]{biblatex} 

\newcolumntype{$}{>{\global\let\currentrowstyle\relax}}
\newcolumntype{^}{>{\currentrowstyle}}
\newcommand{\rowstyle}[1]{\gdef\currentrowstyle{#1}%
    #1\ignorespaces
}
\begin{document}

\begin{landscape}
\begin{table}[h!]
\resizebox{\pagewidth}{!}{%
\begin{tabular}{$c^c^c^c^c^c^c^c^c^c}
\rowstyle{\bfseries}k0      & 3             & 4               & 11             & 15             & 16             & 21             & 23             & 24             & 25             \\
1   & $\SI{-1,611698E+00}{}$ & $\SI{-5,15900258E-03}{}$ & $\SI{6,30506428E-04}{}$ & $\SI{1,76906828E-03}{}$ & $\SI{1,33663594E-01}{}$ & $\SI{1,48886466E-03}{}$ & $\SI{1,20976955E-01}{}$ & $\SI{1,34041033E-01}{}$ & $\SI{8,82496074E-01}{}$ \\
2   & $\SI{-1,611698E+00}{}$ & $\SI{-5,15900258E-03}{}$ & $\SI{6,26128162E-04}{}$ & $\SI{1,76906828E-03}{}$ & $\SI{1,20297235E-01}{}$ & $\SI{1,49439564E-03}{}$ & $\SI{1,00734380E-01}{}$ & $\SI{1,20636930E-01}{}$ & $\SI{8,71657257E-01}{}$ \\
3   & $\SI{-1,611698E+00}{}$ & $\SI{-5,15900258E-03}{}$ & $\SI{7,66274060E-04}{}$ & $\SI{1,59217479E-03}{}$ & $\SI{1,17781198E-01}{}$ & $\SI{1,50464406E-03}{}$ & $\SI{1,01117973E-01}{}$ & $\SI{1,08573237E-01}{}$ & $\SI{8,71657257E-01}{}$ \\
4   & $\SI{-1,611698E+00}{}$ & $\SI{-5,15900258E-03}{}$ & $\SI{7,94979626E-04}{}$ & $\SI{1,51805768E-03}{}$ & $\SI{1,15181913E-01}{}$ & $\SI{1,52044130E-03}{}$ & $\SI{1,02134836E-01}{}$ & $\SI{1,08573237E-01}{}$ & $\SI{8,80405384E-01}{}$ \\
5  & $\SI{-1,611698E+00}{}$ & $\SI{-5,15900258E-03}{}$ & $\SI{6,68034204E-04}{}$ & $\SI{1,68500964E-03}{}$ & $\SI{1,25576240E-01}{}$ & $\SI{1,52142533E-03}{}$ & $\SI{1,12348319E-01}{}$ & $\SI{9,77159132E-02}{}$ & $\SI{8,80405384E-01}{}$ \\
\rowstyle{\bfseries}Average & $\SI{-1,611698E+00}{}$ & $\SI{-5,159003E-03}{}$   & $\SI{6,946160E-04}{}$   & $\SI{1,635247E-03}{}$   & $\SI{1,216266E-01}{}$   & $\SI{1,493486E-03}{}$   & $\SI{1,031347E-01}{}$   & $\SI{1,128022E-01}{}$   & $\SI{8,425496E-01}{}$  
\end{tabular}}
\end{table}
\end{landscape}

\end{document}

Answer 1

Rather than use the adjustbox machinery to squeeze your table with 9 data columns, each with numbers containing up to 9 digits after the decimal marker and exponent terms, into the width of the textblock, I'd use the machinery of the siunitx package to round all numbers to 3 digits after the decimal marker. (What are your readers supposed to take away from being 8 digits after the decimal markers? Three digits should be enough, right?)

Employing the package's S column type allows you to get rid of all $...$ wrappers and all \SI{...}{} wrappers, making the input much more legible.

I'd also use a tabular* environment instead of a tabular environment, to assure that the table fits inside the width of the (rotated) textblock.

These adjustments, along with providing a bit more visual structure to the table, should also make it unnecessary to use any bold-facing.

\documentclass[ 
    11pt, a4paper, BCOR=15mm, bibliography=totoc, 
    DIV=9, final, headings=optiontohead,  
    listof=chaptergapsmall, listof=totoc,   
    numbers=noenddot, openright, parskip=half,   
    titlepage, twoside]{scrreprt}

%% I've simplified the preamble to load only packages relevant for this example

\usepackage[automark,ilines]{scrlayer-scrpage}
\usepackage[english,ngerman]{babel}   
\usepackage[T1]{fontenc}  
\usepackage[utf8]{inputenc} 

\usepackage{booktabs}   
\usepackage{rotating}   

\usepackage{mathtools,amssymb} % 'mathtools' loads 'amsmath'   
%\usepackage{mathptmx} % why do you load this package?
%\usepackage[sc,osf]{mathpazo} % mathpazo is obsolete
\usepackage{newpxtext,newpxmath} 

\usepackage[output-decimal-marker={,}, 
            range-phrase={--},
            range-units=single,
            output-exponent-marker=\text{E},
            retain-explicit-plus
           ]{siunitx}  

\usepackage[font={small,it}, labelfont=bf, textformat=period]{caption}  
\usepackage[onehalfspacing]{setspace}
\usepackage{array}

\begin{document}

\begin{sidewaystable}
\small % for a 10 percent linear reduction in font size
\setlength\tabcolsep{0pt} % let LaTeX determine intercolumn whitespace
\sisetup{round-mode=places, round-precision=3, retain-zero-exponent} % new

\begin{tabular*}{\textwidth}{@{\extracolsep{\fill}} l 
       *{9}{S[table-format=-1.3e1]}}
k0 & {3} & {4} & {11} & {15} & {16} & {21} & {23} & {24} & {25} \\
\midrule
1 & -1,611698E+00& -5,15900258E-03& 6,30506428E-04& 1,76906828E-03& 1,33663594E-01& 1,48886466E-03& 1,20976955E-01& 1,34041033E-01& 8,82496074E-01 \\
2 & -1,611698E+00& -5,15900258E-03& 6,26128162E-04& 1,76906828E-03& 1,20297235E-01& 1,49439564E-03& 1,00734380E-01& 1,20636930E-01& 8,71657257E-01 \\
3 & -1,611698E+00& -5,15900258E-03& 7,66274060E-04& 1,59217479E-03& 1,17781198E-01& 1,50464406E-03& 1,01117973E-01& 1,08573237E-01& 8,71657257E-01 \\
4 & -1,611698E+00& -5,15900258E-03& 7,94979626E-04& 1,51805768E-03& 1,15181913E-01& 1,52044130E-03& 1,02134836E-01& 1,08573237E-01& 8,80405384E-01 \\
5 & -1,611698E+00& -5,15900258E-03& 6,68034204E-04& 1,68500964E-03& 1,25576240E-01& 1,52142533E-03& 1,12348319E-01& 9,77159132E-02& 8,80405384E-01 \\
\addlinespace
Avg & -1,611698E+00 & -5,159003E-03 & 6,946160E-04 & 1,635247E-03 & 1,216266E-01 & 1,493486E-03 & 1,031347E-01 & 1,128022E-01 & 8,425496E-01 
\end{tabular*}
\end{sidewaystable}

\end{document}

Answer 2

For rows containing maths, use

\rowstyle\bfseries\mathversion{bold} 

and add

\sisetup{detect-weight}

Edit:

Also, if you absolutely want to use resizebox, write

\resizebox{\textheight}{...}