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Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: factors and nutrient levels on the physical properties of lettuce leaves activity of phenylalanine ammonia Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: factors and nutrient levels on the physical properties of lettuce leaves activity of phenylalanine ammonia Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: factors and nutrient levels on the physical properties of lettuce leaves activity of phenylalanine ammonia Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: factors and nutrient levels on the physical properties of lettuce leaves activity of phenylalanine ammonia Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 9button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5page9jpg target=_blank amp-img class=ts-thumb alt=Page 9: factors and nutrient levels on the physical properties of lettuce leaves activity of phenylalanine ammonia Iyase PAL and activity of poly- phenol oxidase PPO The effect of src=https:reader040vdocumentssitereader040viewer20220409225e9c7bdc2cd87b1c4e0937b5html5thumbnails9jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 10button div class=ts-image a 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