Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Nikolay PANAYOTOV, Ani POPOVA
The main goal of the present study was to establish the influence of the different quantity of nitrogen on the possibilitiesfor post-harvest ripening of fruit of cape gooseberry (Physalis peruviana L.). Some part of the cape gooseberry fruitcan not ripen until the end of the growing season. Therefore, it is necessary to be carried out the studies in relation withafter harvest ripening. By this way the overall productivity are increased. The experiments were carried out with twogenotypes of cape gooseberry – first Bulgarian variety Plovdiv and Columbian ecotype Obrazec 1. The plants weregrown with non-pricked out seedling in five level of nitrogen fertilization 0, 70, 140, 210 and 280 N kg.ha-1 applied inthree times – in pre sowing tillage, in stage of flowering and 20 days later. In the end of vegetation normal developmentfruits, without damage and injuries, but unripe were placed for after harvest ripening in ambient conditions. In a periodof 7 days the quantity of ripening and damaged fruits, the content of dry matter and sugars and weight of the fruits wereestablished. The highest percentage of after harvest ripe fruits for variety Plovdiv was found in variants with 140 Nkg.ha-1- 67.0%. For Obrazec 1 these values were the highest in rate of 210 N kg.ha-1 - 71.67%. Dry matter and sugarcontent increased, while the fruit weight decreased. The periods for economic efficiency of after harvest ripening were14 days to maximum 21 days for both varieties.
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cape gooseberry
