马铃薯表观淀粉含量与直链淀粉含量相关性研究

测定了48个不同马铃薯品种表观淀粉含量以及块茎中和淀粉中直链淀粉含量，对表观淀粉含量和块茎中直链淀粉含量间，表观淀粉含量和淀粉粒直链淀粉含量间进行了相关分析。结果表明：表观淀粉含量和块茎中直链淀粉含量间相关显著，表观淀粉含量和淀粉粒直链淀粉含量间相关不显著，且中熟和晚熟基因型表观淀粉含量和淀粉粒直链淀粉含量间相关也不显著，这些结论将为淀粉生物合成的理论研究和淀粉品质改良提供基本的表型数据。

Correlativity between Apparent Starch Contents and Amylose Contents in Potato

The apparent starch contents of forty eight potato varieties and the amylose contents of their tubers and starches were determined,and then the correlations between the apparent starch contents and the tuber smylose contents as well as the correlation between the apparent starch contents and the starch-granule amylose was analyzed.The results indicated that the apparent starch contents appeared to significantly correlate to the tuber amylose contents,the apparent starch contents did not appear to significantly correlate to the starch-granule amylose contents,and the apparent starch contents did not appeared to significantly correlate to the starch-granule amylose in late- and early-maturity potato genotpyes.These would provide the basic genotypic data for theoretical researches of starch biosynthesis and improvement of starch quality.