新疆野苹果矿质元素与糖酸组分的遗传多样性

Genetic Diversity of Mineral Elements,Sugar and Acid Components in Malus sieversii(Ldb.)Roem.

对新疆野苹果巩留和新源两个种下居群的88个实生株系果实的矿质元素、糖酸组分及其遗传多样性进行研究,并与富士、金帅和红星品种进行比较。结果表明,新疆野苹果的6种矿质元素(Ca、Mg、Fe、Cu、Mn、Zn)、3种糖(果糖、葡萄糖、蔗糖)组分及苹果酸含量的变异系数均在23%以上,表现出丰富的遗传多样性。其中钙平均含量是栽培苹果品种的3·1倍,而且可溶性糖的组成与栽培苹果品种表现出明显的差异。

Content of mineral elements, sugar and acid components of fruits in 2 intraspecific populations （ Gongliu and Xinyuan County in Ily State） of Malus sieversii （ Ldb. ） Roem. from 88 seedlings were studied, as well as their contents comparison to three M. domestica Borkh. cuhivars （Fuji, Golden Delicious, Starimson）. The results indicated that variation coefficients of mineral elements （ Ca, Mg, Fe, Cu, Mn, Zn）, sugar components （fructose, glucose, sucrose） and malate in M. sieversii seedlings were more than 23% , which revealed rich genetic diversity. The content of Ca in M. sieversii was 3. 1 times of that in M. domestica and the sugar composition in M. sieversii was significantly different to that in M. domestica.