Several works found a correlation between the occurrence of blossom end rot and Ca 2+ nutrition. In susceptible cultivars, it may cause severe economic losses in some seasons and under certain environmental conditions. According to, blossom end rot is one of the most devastating physiological disorders that affect various crops, such as pepper ( Capsicum annuum L.), watermelon ( Citrullus lanatus Thunb.) and particularly tomato ( Solanum lycopersicum L.).īlossom end rot of tomato was first identified as a physiological disorder. Abiotic stresses are becoming increasingly more prevalent, especially considering climate change. As the population is growing, the world is facing increasing demands for a stable food supply grown on agricultural lands worldwide. Unfortunately, like all Vegetable production, tomato is challenged by a range of biotic and abiotic factors, often resulting in a substantial loss of the produce in each growing cycle. As a result, tomato culture can contribute efficiently to the development and well-being of populations. Its cultivation occupies a significant portion of the Ivorian population, mainly women (60%) and youth in rural and peri-urban areas. In Côte d’Ivoire, annual production was estimated at 40,000 tons, against a need of 100,000 tons per year. Tomato is widely cultivated for its fruits rich in lycopene and other valuable antioxidant compounds. Although low calcium content has generally been reported to be the cause of blossom end rot in tomatoes, various factors including acidic growing media, high N content, high soil salinity, low soil moisture and soil dryness have also been reported to affect the development of blossom end rot. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.īlossom end rot in tomatoes has been described as a physical disorder. Also, BER was lower in plants treated with calcium contrary to the control. The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. The trials comprised two factors: calcium sources and calcium source form (powder and extract).
#Ag source calcium trial#
The experiment was conducted in a block factorial trial with three replications. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses.
Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium.
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