206份芋种质资源品质性状分析

Analysis on Quality Characters of 206 Taro 〔Colocasia esculenta ( Linn. ) Schott〕Germplasm Resources

对206份芋种质资源品质性状进行了分析,结果表明:按球茎类型来分,干物质含量魁芋>多头芋>魁子兼用芋>多子芋。淀粉含量魁芋>魁子兼用芋>多头芋>多子芋,干物质和淀粉含量都以魁芋最高,分别为27.38%、20.21%,多子芋最低,分别为19.54%、13.35%。蛋白质含量多头芋>魁芋>多子芋>魁子兼用芋,以多头芋的含量最高为1.54%,其他类型相差不大。可溶性糖含量魁芋>魁子兼用芋>多子芋>多头芋,以魁芋的可溶性糖含量最高为1.21%,其他芋类型相差不大。按母芋芽色来分,多子芋中,干物质、淀粉和蛋白质含量红芽多子芋>白芽多子芋,可溶性糖含量白芽多子芋>红芽多子芋;多头芋中,干物质、淀粉、可溶性糖白芽多头芋>红芽多头芋,蛋白质含量红芽多头芋>白芽多头芋。在整个芋种质资源中,芋的干物质含量与淀粉含量(r=0.9583**)、干物质含量与蛋白质含量(r=0.5529**)、淀粉含量与蛋白质含量(r=0.5284**)呈极显著正相关,干物质含量与可溶性糖含量(r=-0.2934**)、淀粉含量与可溶性糖含量(r=-0.3391**)、蛋白质含量与可溶性糖含量(r=-0.4498**)均呈极显著负相关。此外本研究还按叶柄颜色类型对芋种质资源品质性状进行了分析。

Analysis on quality characters of 206 accessions of taro germplasm resources was done. It indicated that ： divided by corm type,the turn of dry matter content was taro with large corm 〉 taro with multi-headed corm 〉 taro used for both corm and cormels 〉 taro with numerous cormels. The turn of starch content was taro with large corm 〉 taro used for both corm and cormels 〉 taro with multi-headed corm 〉 taro with numerous cormels. Dry matter content and starch of taro with large corm were the highest,which were 27.38% and 20. 21% respectively. Dry mat- ter content and starch of taro with numerous cormels were the lowerest,which were 19.54% and 13.35% respec- tively. The turn of protein content was taro with multi-headed corm 〉 taro with large corm 〉 taro with numerous cor- mels 〉 taro used for both corm and cormels. Protein content of taro with multi-headed corm was the highest,which was 1.54%. There was no obvious difference among those of the others. The turn of soluble sugar content was taro with large corm 〉 taro used for both corm and cormels 〉 taro with numerous cormels 〉 taro with muhi-headed corm. Soluble sugar of taro with large corm was the highest,which was 1.21%. There was no obvious difference among those of the others. Divided by the color of corm bud,in taro with numerous cormels,the turn of dry matter content, starch content and protein content was taro （red bud） with numerous cormels 〉 taro（white bud） with numerous cor- mels. The turn of soluble sugar was taro （white bud） with numerous cormels 〉 taro （red bud） with numerous cor-mels. In taro with multi-headed corm,the turn of dry matter content,starch content and soluble sugar content was taro （white bud） with multi-headed corm 〉 taro （red bud） with multi-headed corm. The turn of protein content was taro （red bud） with multi-headed corm 〉 taro （white bud） with multi-headed corm. In all taro germplasm resources,there was significently positive correlation between dry matter content and starch content （r = 0. 9583 ＊＊ ）, dry matter content and protein content （ r = 0. 5529 ＊＊ ）, starch content and protein content （ r = 0. 5284 ＊＊ ）. There was significenthy nega- tive correlation between dry matter content and soluble sugar content （r = - 0. 2934＊＊ ）, starch content and soluble sugar content （r = -0. 3391 ＊＊ ） ,protein content and soluble sugar content （r= -0. 4498 ＊＊ ）. In this article,analysis on quality characters of taro germplasm resources was also done,divided by petiole color.