?? ??? ???? ???? ???? ????? ????????? ???? ??? ??????? ???? ???? ??? ??? ????? ????? ???? ????????? ????? ??? ??? ????? ? ??? ????? ????? ? ??? ??? ????? ????? ???? ??? ???? ???? ???? ????? ?? ???? ??? ???? ????? ??????? ?? ??? ??? ???? ??? ??? ???? ????? ???? ?????? .The availability of potassium it offers favours water regulation mechanisms, part