International Journal of Horticulture, 2017, Vol.7, No. 24, 219-228
        
        
        
          220
        
        
          such as improving functions of the whole body, disease prevention, and delayed disease progression (Somsri et al.,
        
        
          2016), enhanced thinking ability and increased efficiency. Examples include improvement in micro-vascular
        
        
          reactivity (Macready et al., 2014), better cognitive performance (Nyaradi et al., 2014), decreased risk of
        
        
          colorectal cancer (Zhong et al., 2014), reduce the risk of overweight (Howarth et al., 2001; Tohill, 2005),
        
        
          coronary heart disease (Dauchet et al., 2006; He et al., 2007; Hartley et al., 2013), and reduced risk of kidney
        
        
          disease (Goraya et al., 2013). Melina (2012) suggested that "a menu filled with seasonal fruits and vegetables
        
        
          could provide a big nutritional boost", and vegetables were packed with fiber and water, and were low in fat, they
        
        
          decreased the calorie density of diet, while boosting overall nutrition. It was evident from the literature that home
        
        
          gardens are a part of agriculture and food production systems in many developing countries and are widely used
        
        
          as a remedy to alleviate hunger and malnutrition in the face of a global food crisis (Johnson et al., 2000). Mitchell
        
        
          and Hanstad (2004) reported that home garden provided multiple social benefits such as enhancing food and
        
        
          nutritional security, empowering women, promoting social justice and equity, and preserving indigenous
        
        
          knowledge and culture and so on. One of the primary objectives of this study is to develop nutrition garden model
        
        
          especially for urban and peri-urban households which ensure healthy diet that contains adequate quantities of
        
        
          vitamins and macro and micro-nutrients by producing diverse kinds of vegetables.
        
        
          2 Results and Discussion
        
        
          The results in Figure 1 showed that 298 kg (grand mean over years) of vegetables per annum were obtained from
        
        
          the given model of 36 m
        
        
          2
        
        
          . Experimental vegetable gardens yield 0.22-1.22 kg/day from 18 m²(AVRDC, 1985),
        
        
          and an average of 1.5 kg of produce per day in a Thai home garden can be obtained (Gershon et al., 1986). The
        
        
          yield of each vegetable is given in Table 1. It was recorded that summer leafy vegetable kangkong gave
        
        
          maximum yield of 23.53 kg from an area of 2 square meters followed by carrot (20.80 kg), chinese cabbage
        
        
          (17.17 kg), basella (15.80 kg), mint (15.62 kg) and so on. The monthly availability of vegetables for a family was
        
        
          also calculated and given in Table 2.
        
        
          Figure 1 Yield performance of vegetables in home garden at two locations in PAU