Arunachalam Vadivel, Fernandes Cristabel M, Salgaonkar Diksha C
Horticulture Section, ICAR-CCARI (Indian Council of Agricultural Research-Central Coastal Agricultural Research Institute), Ela, Old Goa, Goa, 403402, India.
Anal Sci. 2020 Oct 10;36(10):1255-1259. doi: 10.2116/analsci.20P096. Epub 2020 May 29.
The current study describes novel and quick methods for the quantification of K and Na in banana leaves using Horiba Laqua twin ion meters. Foliar K and Na content measured by ion meter significantly correlated with standard test values by coefficients of 0.83 and 0.46, respectively. About 48 absorbance values associated with potassium concentrations at wave numbers (1581 to 1583 and 3194 to 3410 cm) and 15 sodium associated wave numbers (3773 to 3996 cm) predicted potassium and sodium content with regression coefficients of 0.999 and 0.588, respectively. K and Na cations of fresh leaves in seven banana varieties were quantified using ion meters and new information of differences in the foliar potassium and sodium contents was found between banana varieties within the AAB group. The Rasbali (Silk subgroup) variety possessed greater potassium (5413 mg/L) and sodium (188 mg/L) ions than Amti (Mysore subgroup).
本研究描述了使用堀场Laqua双离子计对香蕉叶片中的钾和钠进行定量的新颖且快速的方法。通过离子计测量的叶片钾和钠含量与标准测试值显著相关，相关系数分别为0.83和0.46。约48个与波数（1581至1583和3194至3410厘米）处钾浓度相关的吸光度值以及15个与钠相关的波数（3773至3996厘米）预测了钾和钠含量，回归系数分别为0.999和0.588。使用离子计对七个香蕉品种新鲜叶片中的钾和钠阳离子进行了定量，并发现了AAB组内香蕉品种之间叶片钾和钠含量差异的新信息。拉斯巴利（丝绸亚组）品种比阿姆蒂（迈索尔亚组）拥有更高的钾离子（5413毫克/升）和钠离子（188毫克/升）。
