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Yuan-Yu Chang, Wei-Chia Su, I-Chun Tang and Chun-Yen Chang

There is a growing body of literature that explores the benefits of school gardening for children, but few studies have been conducted in Taiwan. Even fewer studies have examined which factors influence the benefits that children derive from these activities. Therefore, the purpose of this study was to explore the benefits of school gardening for children in Taiwan and also identify the factors influencing these benefits. This study used qualitative research methods, which consisted of interviewing 43 elementary school students who had extensive experience with gardening, and used a general inductive approach to analyze the data. The study also used a quantitative approach to statistically compare gender differences, which found that there were some differences in preference for gardening between boys and girls in Taiwan. The results also identify seven benefits children can derive from school gardening, including increasing life skills, producing pleasant feelings, improving relationships and having plants as companions, acquiring new knowledge, experiencing the aroma and flavor of fruits and vegetables, improving health, and increasing connection to nature. Some of these benefits of school gardening have not been mentioned in previous studies and can be considered to be new, such as having plants as companions. Additionally, this study found 20 factors that influence the benefits of school gardening. Of these, eight were about plants, seven about activities, two about outdoor environments, and three about other participants. Most of the factors provide more than one benefit. The factors with the greatest impact have the most number of benefits that influence children and include “appearance, odor and texture,” “hands-on,” and “outdoor natural elements.” These factors help us to realize the unique characteristics of gardening, highlight the distinctiveness, and increase the indispensability of gardening activities.

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Yi-Chen Chen, Wei-Chun Chang, San-Tai Wang and Shu-I Lin

Grafting is widely used in the commercial production of cucurbits (Cucurbitaceae) and solanaceous (Solanaceae) vegetables, but seldom in the production of cruciferous vegetables such as cabbage (Brassica oleracea Capitata group). In our study, we developed a tube grafting method for cabbage using the ‘K-Y cross’ cabbage as the scion and ‘Tsuei Jin’ chinese kale (B. oleracea Alboglabra group) as the rootstock (K-Y/TJ), and then used the K-Y/TJ grafted seedlings to identify the best healing conditions. The examined healing conditions included temperature (15, 20, or 25 °C), relative humidity (RH; 75%, 85%, or 95%), and light intensity (high light intensity, 79 to 107 μmol·m–2·s–1; low light intensity, 38.6 to 58.8 μmol·m–2·s–1; or full darkness, 0 μmol·m–2·s–1). Considering all the healing conditions, the K-Y/TJ grafted seedlings healing at 20 °C, 95% RH, and high light intensity exhibited survival rates of up to 96.7% and overall superior seedling quality. ‘K-Y cross’ cabbages were then grafted onto chinese kale rootstocks, and the head traits of all grafted plants were comparable to those of nongrafted and/or self-grafted ‘K-Y cross’ plants. ‘K-Y cross’ plants grafted on ‘Jie Lan’ chinese kale rootstocks had greater ascorbic acid and total soluble solid (TSS) contents than nongrafted and self-grafted ‘K-Y cross’ plants. Overall, this research describes a successful tube grafting method and the optimal healing conditions for grafted cabbage seedlings, which can be used as a tool to improve head quality.