马铃薯品种（系）淀粉与产量表现稳定性分析

为选育高淀粉加工型马铃薯品种（系）,以21份马铃薯品系和黑龙江垦区2个主栽品种垦薯1号、大西洋为试验材料,测定马铃薯块茎产量、淀粉含量、淀粉产量及直链淀粉含量。结果表明,马铃薯的块茎产量、淀粉含量、淀粉产量及直链淀粉含量存在着环境与基因型极显著的互作关系（P<0.01）,但基因型影响效应大于环境因素（P>0.05）;参试品种（系）的产量为17 552~49 639kg/hm²,淀粉含量13.17%~19.66%,淀粉产量2428.17~8792.31kg/hm²,直链淀粉含量13.21%~21.30%;通过与对照品种比较,从21份马铃薯品系中筛选出高产、稳产、高淀粉含量和高淀粉产量的品系4份。结果为选育高淀粉含量、稳定性强的马铃薯品种提供科学依据。

Analysis of Stability of Potato Varieties (Strains) Starch and Yield Performance

In order to breed high-starch potatoes, twenty-one potato strains and two varieties (Kenshu No.1 and Daxiyang), mainly planted in Heilongjiang Reclamation Area, were used as experimental materials for screening varieties (strains) with excellent characteristics by measuring tuber yield, starch content, starch yield, and amylose content. The results showed that the tuber yield, starch content, starch yield and amylose content of potato had an extreme interaction between environments (years) and genotypes (P < 0.01), but the effect of genotypes were greater than environmental factors (P > 0.05). The yield of the tested genotypes were 17 552-49 639kg/ha, starch contents were 13.17%-19.66%, starch yield were 2428.17-8792.31kg/ha, and amylose contents were 13.21%-21.30%. Compared with the control varieties, four strains with high yield, stable yield, high starch contents and high starch yield were screened out from 21 potato strains. This study provided scientific basis for the selection of potato varieties with high starch and strong stability.