CAJ | 학술논문

选用8个木薯品种(系)调查和评价储藏根采后3、7、12、17和27 d贮藏保鲜过程,发现其耐贮存性从高至低依次为 SMH、BRA755、SC205、SC5、BRA440、7G-2、T1和 BRA258.利用线性回归分析表明,木薯储藏根贮存变质抗性与干物质含量呈负相关,相关系数 r 为0.687(P=0.05);与淀粉率含量呈负相关,相关系数 r 为0.696(P=0.05);与储藏根氢氰酸(HCN)含量无相关性.其中 SMH 贮存变质抗性最强,储藏根干物质和淀粉含量最低;BRA258和T1贮存变质抗性最差,干物质和淀粉含量最高,因此这3个木薯品种(系)在育种上具有较高的利用价值.
선용8개목서품충(계)조사화평개저장근채후3、7、12、17화27 d저장보선과정,발현기내저존성종고지저의차위 SMH、BRA755、SC205、SC5、BRA440、7G-2、T1화 BRA258.이용선성회귀분석표명,목서저장근저존변질항성여간물질함량정부상관,상관계수 r 위0.687(P=0.05);여정분솔함량정부상관,상관계수 r 위0.696(P=0.05);여저장근경청산(HCN)함량무상관성.기중 SMH 저존변질항성최강,저장근간물질화정분함량최저;BRA258화T1저존변질항성최차,간물질화정분함량최고,인차저3개목서품충(계)재육충상구유교고적이용개치.
Cassava (Manihot esculenta Crantz) is an important food and bio-energy crop, which grows in marginal land by sub-sistent farmers in tropics and subtropics. Cassava contains abundant starch in its tuberous roots, but easily turns rot after harvest, which greatly affects storage life and subsequent starch processing. In this study, tuberous roots of eight varieties (lines) were evaluated at 3, 7, 12, 17, and 27 days after harvest. The results showed that storability of tuberous roots was SMH>RA755>C205>SC5>BRA440>7G-2>T1>BRA258. The association between the storability and each of dry matter, starch content, and HCN content was evaluated by a linear regression analysis. There were negative correlation of storability with dry matter (r=0.687, P=0.05) and starch content (r=0.696, P=0.05), and no correlation between the storability and HCN content. In addition, SMH showed the higher storability, lower dry matter and starch content, but BRA258 and T1 showed lower storability, higher dry mat-ter and starch content. These special genotypes should be useful for cassava breeding in the future.