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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (26): 1-8.doi: 10.11924/j.issn.1000-6850.casb2021-0511

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Analysis of Tuber Yield and Sugar Content of 10 Sugar Beet Varieties in Susceptible and Non-Susceptible Areas

Zhao Yaru1,2(), Shi Haoqi1,2, Pi Zhi1,2(), Wu Zedong1,2()   

  1. 1College of Modern Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080
    2Key Laboratory of Sugar Beet Genetic Breeding/Heilongjiang University, Harbin 150080
  • Received:2021-05-14 Revised:2021-07-23 Online:2021-09-15 Published:2021-09-30
  • Contact: Pi Zhi,Wu Zedong E-mail:931178094@qq.com;2018060@hlju.edu.cn;1997009@hlju.edu.cn

Abstract:

To evaluate the impact of susceptible and non-susceptible areas on root yield and sugar content of sugar beet, the root yield and sugar content of 10 sugar beet varieties were measured in 2017 and 2018 in 1 susceptible area and 6 non-susceptible areas. The experiment was a randomized complete block design, and the paired t-test and multivariate analysis of variance were adopted to analyze tuber yield and sugar content of the ten sugar beet varieties with 4 replicates. The results of multivariate analysis of variance showed that, except zone 3 in 2018, there was no significant difference in root yield among the 4 replicates in the other 6 zones in 2018 compared with 2017. Significant and non-significant differences were shown among the 10 varieties in the 7 areas in 2017 and 2018. The boxplot showed that the sugar content in 2017 and the root yield and sugar content in 2018 were significantly different between the susceptible area (zone 1) and the non-infectious areas (zone 2 to 7) (paired t-test, p<0.001, p<0.001, p<0.001). In 2017, BETA377, BETA468, ST13112, LN90905, KWS2314, SV1554, BETA379 and KWS9147 in zone 1 had no significant differences and were at a high level. In 2018, the root yield of Knhn1357 in zone 1 was significantly different from that of the other nine varieties and was at a high level. In zone 1, the sucrose content of HI0554, BETA377, Kuhn1357 and SV1554 in 2017 and HI0554, BETA468, KWS2314 and Kuhn1357 were not significantly different from each other in 2018 and were at a higher level. In 2017 and 2018, except that LN90905 and HI0554 in 2017 had significant differences, there was no significant difference in root yield and sugar content of the 10 varieties in zone 5. In 2017 and 2018, there were significant differences in root yield and sugar content in zone 1 (paired t-test, P<0.001, P =0.036). In zone 5, there was no significant difference in root yield and significant difference in sugar content among the 10 varieties in 2017 and 2018 (paired t-test, p=0.931, p<0.001). After a comprehensive assessment, ST13112, LN90905 and SV1554 are less resistant to the disease, Knhn1357, BETA377, BETA468, KWS2314, KWS9147, BETA379 and HI0554 have strong disease resistance, and there are significant differences in root yield and sugar content within the same zone and among the varieties.

Key words: sugar beet, tuber yield, sugar content, paired t-test, multivariate analysis of variance

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