TY - RPRT TI - Boron deficiency causes a drastic decrease in nitrate content and nitrate reductase activity, and increases the content of carbohydrates in leaves from tobacco plants AU - JJ Camacho-Cristobal AU - A Gonzalez-Fontes PY - 1999 DO - 10.1007/s004250050757 UR - https://pubmed.ncbi.nlm.nih.gov/10550635/ ID - 10550635 ER -