{"product_id":"orange-fleshed-sweetpotato-a-contributor-to-health-von-martin-chiona","title":"Orange Fleshed Sweetpotato: A contributor to health","description":"\u003cp\u003eVitamin A deficiency is a serious public health problem in Zambia and the existing means for addressing the problem are inadequate. The problem is manifest especially in young children and lactating mothers. Sweetpotato is a potential crop for alleviating vitamin A deficiency as some of the genotypes contain high levels of ¿-carotene recognised by the orange flesh. However, most of the genotypes grown in Zambia are white fleshed hence low in ¿-carotene. The research presented in this book was conducted as a contribution to the alleviation of vitamin A deficiency in Zambia by bio fortification of sweetpotatoes. The goal of this research was to improve the quantity of ¿-carotene of the high dry mass local sweetpotato cultivars through hybridisation with the high ¿-carotene content introduced genotypes. Two high ¿-carotene parents exhibited positive high general combining ability effects, indicating that additive gene effects were predominant in the inheritance of ¿-carotene. Reciprocal mean squares were significant (p=0.01) for ¿-carotene content. The estimate of narrow sense heritability of ¿-carotene (20.9%) was much lower. These results suggest that genetic gains will be slow for\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783846507797\"\u003e\u003ch3\u003eBreeding healthy sweetpotatoes to alleviate vitamin A deficiency\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783846507797","offer_id":39494563692637,"sku":"9783846507797","price":79.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/2a103b59-2728-4103-a524-8bc07266eb60.jpg?v=1757740374","url":"https:\/\/shop.autorenwelt.de\/products\/orange-fleshed-sweetpotato-a-contributor-to-health-von-martin-chiona","provider":"Autorenwelt Shop","version":"1.0","type":"link"}