| Regulation of subsoiling on growth, development, yield and sugar yield of sugarbeet |
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| DOI：10.7606/j.issn.1000-7601.2021.05.23 |
| Key Words: sugarbeet subsoiling depth growth and development yield principal component analysis |
| Author Name | Affiliation | | ABDUKADIER Kurban | Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | ZHENG feng | Scientific Research Management Office of Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | PAN Jinghai | Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | LIU Huajun | Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | LIN Ming | Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China | | CHEN Youqiang | Research Institute of Economic Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang 830091, China |
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| Abstract: |
| In this study, field randomized block design was adopted in Kashi New Sugar area of Xinjiang in 2020. Four treatments were set up. The subsoiling depth was 35 cm (S35), 45cm (S45), and 55 cm (S55), with no subsoiling as control (CK). The effects of different subsoiling depth on the morphological characteristics of sugarbeet and the formation of crop yield were studied. The correlation and principal component analysis of the morphological characteristics of sugarbeet were carried out, so as to provide the basis for constructing reasonable tillage depth of sugarbeet field in Kashi New Sugar area. The results showed that S45 and S55 increased the number of green leaves by 1.67~2.67. Compared with CK treatment, S55 treatment significantly increased the maximum leaf length by 34.29%, the maximum leaf width by 16.6% and the maximum petiole length by 12.71%, providing a greater source for sugarbeet plants. The root diameter, root girth, root body length, root tail length and root tail weight of sugarbeet were improved. The underground biomass accumulation of sugarbeet was effectively promoted, and the root shoot ratio and biomass accumulation of sugarbeet were increased by 10.17% and 15.15%, respectively. Compared with CK, the single root weight and sugar yield of S45 and S55 increased by 12.67%, 10.20% and 5.26%, 8.33%, respectively. The yield and sugar yield of sugarbeet increased by 14.71%, 15.85% and 20.75% and 25.48%， respectively. The results of principal component analysis showed that the main growth indexes of sugarbeet under subsoiling conditions were petiole length, root shoot ratio，and belowground biomass allocation ratio. In Kashi New Sugar area, the subsoiling depth of 55cm effectively increased beet yield and sugar yield. |
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