As the interest in and demand for urban agriculture have recently increased, more and more people want to be engaged in urban agriculture. In this respect, horticultural exhibitions held on university campuses can be utilized as a space to share knowledge on and experience urban agriculture. Against this backdrop, this study was conducted to evaluate the satisfaction of visitors with horticultural exhibitions, and to develop strategies to plan a horticultural exhibition based on the results of the evaluation. A survey was conducted in an horticultural exhibition held on the campus of G University in J city in South Gyeongsang Province for three days (May 2-4, 2016). In this survey, a self-administered questionnaire was used, and statistical analysis was performed on a total of 275 collected questionnaires. The satisfaction of visitors with the exhibition was analyzed by content sections and items of information and services. As a result, the level of satisfaction with the section of flower plants (83.7%) and the level of satisfaction with the docent service (78.2%) were the highest respectively. A correlation analysis was conducted between the satisfaction of visitors and their intention to revisit, which can affect the action of the visitors. The correlation of all of the content, information and services of the exhibition with the overall satisfaction and the intention to revisit were positive (+). In particular, among the items of information and services, the satisfaction with activity experience showed the highest correlation with the overall satisfaction (0.659, p<.001) and the intention to revisit (0.519, p<.001). This indicates that activity experience is a very important factor in promoting the overall satisfaction of visitors and their intention to revisit. Therefore, if the demand for the experience and instructive benefits is met by horticultural exhibitions, they can be utilized not just as an event held on a university campus, but also as a means to promote urban agriculture by providing basic information and knowledge about it for local residents. By doing so, it will be also possible to encourage the participation of local residents as well as university students

This study as a part of an extensive green roof system development was carried out to assess the heat tolerance of 11 species Sedum spp. on the extensive green roof system: S. kamtschaticum, S. oryzifolium, S. polystichoides, S. sarmentosum, S. acre, S. album, S. reflexum, S. rupestre, S. sexangulare, S. spurium, and S. telephium. Electrolyte leakage evaluation was used to estimate the heat tolerance level of each Sedum at 40°C, 45°C, 47.5°C, 50°C, 52.5°C, 55°C, and 57.5°C. The critical temperatures at the midpoints of sigmoidal curves fitted through electrolyte leakage (EL) were predicted with the range of 54.0°C to 65.2°C. S. album, S. telephium, and S. sexangulare were more tolerant of high temperature than the others. In field condition, the heat tolerance of 11 species Sedum spp. applied to the suggested extensive green roof system was also estimated by EL evaluation. The EL (%) values of 11 species Sedum spp. subjected to maximum temperature (46.7°C) recorded during the experimental periods were lower than 50% except S. kamtschaticum and S. spurium. Especially, S. album, S. rupestre, and S. telephium were ranked higher than the others in heat tolerance. The most Sedum spp. would show good heat tolerance on the extensive green roof system if the maximum temperature on rooftop was below 50°C in summer season.

Safflower (Carthamus tinctorius L.) is a herb primarily distributed throughout in the world. We have used the inter-simple sequence repeats (ISSR) technique to investigate the phylogenetic relationships and genetic diversity of C. tinctorius. Of all germplasms, 88.7% were polymorphic among all germplasms. Mean genetic diversity within germplasms was very low (0.048). The Turkey germplasm had the highest expected diversity (0.082) and Australia germplasm was the lowest (0.020). These values indicate that most of the genetic diversity of safflower is found among germplasms and there is a high among-germplasm differentiation. We found eight phenetic bands for determining the specific marker of germplasm with SCAR markers. The regions of the Mediterranean Sea and India may be the most probable candidates for the origin of safflower. The tree showed four major clades: (1) European germplasms, (2) Azerbaijan, Egypt, and Ethiopia, (3) Australia, and (4) America.