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In this study, routinely used transformation method, which includes transferring explants onto co-cultivation medium after inoculating them with bacterial solution for a while, was compared with 3 different inoculation methods. In every 3 methods, hypocotyl explants excised from 7-day-old sterile flax seedlings having cotyledon leaves and no root system dried under air flow in sterile cabin for 35 min were inoculated with different volumes of bacterial solution at different inoculation periods. GV2260 line of Agrobacterium tumefaciens having 'pBIN 19' plasmid containing npt II (neomycin phosphotransferase II) gene and GUS reporter gene was used in transformation studies. After inoculation, hypocotyl segments of seedlings (0.5 cm in length)-were excised and left to co-cultivation for 2 days. Then, explants were transferred to regeneration medium supplemented with different antibiotics. The presence of npt-II and GUS genes in transformants was confirmed by PCR and GUS analysis. The highest results in all characters examined in all cultivars were obtained from the 2 inoculation method in which hypocotyls excised from seedlings inoculated with 500 µl of bacterial solution after drying in sterile cabin for 35 min were used.

Types of pesticides are used in farming to increase the productivity and protection of crops or to control pests. However, exposure to acute pesticide poisoning is one of the most important occupational risk factors among farmers all over the world. They are directly exposed to high levels of pesticide poisoning when involved in the handling, spraying, mixing, or preparing of it. The low educational level, lack of information, training, judgment or experience, and the inability to read on pesticide safety are playing an important role for farmers' acute poisoning. On the other side, poor technology, inadequate personal protection, inappropriate type of clothing and equipment also leads to farmers' acute poisoning. Hence, this paper focuses on occupational risk factors for acute pesticide poisoning among farmers and their occupational safety. Discovering risk factors is also crucial for investigating health problems of farmers and its inevitable effects on their body. As it is seen from previous studies instead of field research such as deep interview on farmers' acute poisoning, data were mostly collected from hospitals. This study tries to emphasize the importance of field study to discover the risk factors for acute pesticide poisoning among farmers and their occupational safety in Asia.

Economically, rapeseed is one of the most important crops in the world. Over the past decades, rapeseed research has been focused on improving biotechnological methods to facilitate breeding. The effectiveness of these methods depends on efficient tissue culture techniques. The aim of the present study was to establish an efficient protocol for regeneration of rapeseed. It was conducted in three stages. The first stage was to determine the effect of different concentrations (10%, 20%, 30% and 40%) of sodium hypochlorite solutions on seedling growth parameters. In the second stage, the effects of different growth media (Murashige and Skoog, MS, and Gamborg) and plant growth regulators (6-benzylaminopurine, 1-naphthaleneacetic acid and thidiazuron) at different concentrations on the regeneration capacity of stem explants of three rapeseed cultivars were investigated. In the last stage, the shoots of ‘Spok’ were cultured for three weeks on MS medium containing 1.5, 3 and 4.5 mg L−1 of indol butyric acid for rooting. The best results in germination, seedling growth and root length were obtained by using 10% disinfectant concentration for 25 minutes. The highest values for shoot regeneration were obtained from the stem explant cultured on MS medium containing 3 mg L−1 BAP and 0.2 mg L−1 NAA. It was found that MS containing 1.5 mg L−1 IBA was the most efficient medium for root formation.