STUDY ON ATTACKS OF TOMATO DISEASES IN TUNNELS
Maria Călin(1), Petre Marian Brezeanu(1), Tina Oana Cristea(1), Silvica Ambarus(1), Creola Brezeanu(1), Maria Prisecaru(2), George Florin Şova(1)
1. Vegetable Research and Development Station Bacau, Calea Barladului, No. 220, Bacau, code: 600388 e-mail: sclbac@legumebac.ro
2. University „Vasile Alecsandri” of Bacau, Faculty of Science, Department of Biology, Ecology and Environment Protection, Marasesti Street, no. 157, Romania e-mail: prisecaru_maria@yahoo.com
Abstract
Experiments were carried out at Vegetable
Research and Development Station Bacau during
2011 – 2012, in tomato cultivated in tunnels.
In the climatic conditions of 2011 – 2012
years the following pathogens have been observed:
- Cladosporium fulvum - Tomato Leaf Mould
- Alternaria sp. – Early blight (brown spotting of the
leaves of tomato).
- Phytophthora infestans - Downy mildew, Tomato
blight.
Tomato Leaf Mould was observed on tomato
plants at the following cultivars:
- Amonita, frequency of attack (FA%) - 90%
intensity of attack (IA%) 84% degree of attack
(GA%) 75.6%.
- 5.5.C, FA% - 18.8%, IA% - 21.5%, GA% - 4.1%.
- Abelus, FA% - 40%, IA% - 46.9%, GA% - 18.8%.
- Inima de bou, FA% - 100%, IA% - 25%, GA -
25%.
The variety Inima de bou was the most
sensible to disease, with a 100% frequency of attack
and 25% intensity of the attack. This cultivar was
followed by the hybrids: Ammonita GA% - 75.6%,
Abelus GA% - 18.8% and 5.5.C, GA% - 4.1%.
Alternaria sp. had lower attack:
- 1.1.C; AF% 50% IA% - 9.4% GA% - 4.7%.
- Inima de bou, FA% - 100; AI% - 9.4% GA% -
9.4%.
Due to high temperatures and low humidity,
downy mildiew had a lower attack, as:
- 1.1.C F% - 30% I% - 3.2% GA% - 0.9%.
- L 15, F% - 10% I% - 12.5% GA% - 1.3%.