Influence of osmotic pressure over the blossom end rot of tomato (Lycopersicum esculentum)
1983
Sanchez Conde, M.P. (Consejo Superior de Investigaciones Cientificas, Madrid (Spain). Instituto de Edafologia y Biologia Vegetal)
It is studied the osmotic pressure influence of 0.65, 3.5 and 5.0 atm. on controlled culture with sand and nutrient solution circulating intermittent, when those osmotic pressures have been obtained adding NaCl to Hoagland and Snyder solution over the blossom end rot in Marglobe and Moneymaker tomato varieties. The osmotic pressures tested reduce the vegetable development and the yield. In the conditions which the trial is done, the Moneymaker variety is more resistant to blossom end rot than the Marglobe one. The osmotic pressure produces blossom end rot on tomato Marglobe in a proportion of 30% and 32.9% in weight. Related to number of fruits the % increases to 18.2 and 21.8 for osmotic pressures of 3.5 and 5.0 atm. on Moneymaker variety only a weight of 2.6 and 2.0% of affected vegetables are produced and the number of affected fruits is about 2.8 and 2.7%
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