lines = 'Plant_1 Plant_2 Plant_3
905  1109 571
1018 1155 1346
905  835  292
886  1152 825
958  1036 676
1056 926  541
904  1029 818
856  1040 90
1070 959  2246
1006 996  104'
con = textConnection( lines )
DF = read.table( con, header=TRUE )
close(con)