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Published in Scientific Papers. Series B, Horticulture, Volume LXII
Written by Elena DOBRIN, Evelina GHERGHINA, Gabriela LUŢĂ, Daniela BĂLAN

Tomato (Lycopersicon esculentum), the world's most important vegetable species, are known for its sensitivity regarding different stress factors such as heat, drought, lack of nutrients. Therefore, is very important to obtain tomatoes seedlings with balanced growth and development, but especially with a strong root system and increased capacity of adaptation to different conditions of stress. This paper presents the results of some researches related to foliar bioactive substance treatment of tomatoes seedling, Rio Grande cultivar, with Spraygard 1%, Razormin 0.1%, BAC Foliar Spray 0.3% and Bio Roots 0.2%. The treatments were performed in two distinct stages of development: at one, respectively two weeks after the seedlings transplantation. Analysis of recorded data indicated that all variants treated with bioactive substances are superiors comparing with the untreated control variant but Razormin 0.1%, followed closely by Bio Roots 0.2% treatments showed the best results in obtaining of tomatoes seedlings with a strong roots systems and a good development. These results are supported by an increased physiological activity.

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