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Relationship between Nitrate Ion Concentrations in Petiole Juice Measured by the Handy Reflecting Photometer and Vine Growth and Fruit Quality of ‘Kyoho’ Grapes
index length of current shoot percentage of sprouting buds
2010/11/23
To determine the relationship between NIC (nitrate ion concentration in petiole juice) and fruit quality, sampling conditions of the petioles were investigated in ‘Kyoho’ grapes with a long-pruning sy...
Relationship between Potassium Level in Petiole Sap and the Leaf Scald and Fruit Quality of the ‘Muscat of Alexandria’ Grape
diagnosis soilless culture
2009/7/8
This study investigated the real-time diagnosis of potassium concentration in ‘Muscat of Alexandria’ grapes grown in a soilless culture system using perlite medium. Potassium concentration in the sque...
Diagnosis of Potassium Deficiency by Using Petiole Extract in ‘Delaware’ Grape
nutritional diagnosis simple reflection photometer system
2009/7/8
This experiment aimed to establish a method for diagnosing potassium deficiency in ‘Delaware’ grape using petiole extract. It is considered that potassium concentration in petiole extract could be use...