a solution of either tap water ( tw ) , carbonated water ( cw ) , 2 % sodium bicarbonate ( hco3- ) , or 3.5 % calcium chloride ( cacl2 ) with ph of 7.8 , 5.2 , 8.0 , and 7.4 , respectively , was infused into the crop at .41 ml x min-1 x kg body weight ( bw ) -1 .
C0074722
sodium bicarbonate
C0005367
hco3