| Study on screening of drought resistance assessment indices and comprehensive evaluation of sugarbeet during seedling stage |
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| DOI：10.7606/j.issn.1000-7601.2011.04.13 |
| Key Words: sugarbeet seedling stage drought resistance membership function method |
| Author Name | Affiliation | | LI Guolong | Institute of Sugarbeet Physiology, Inner Mongolia Agricultural University, 010018, China | | WU Haixia | Inner Mongolia Academy of Water Resources, Hohhot 010020, China | | WEN Li | Institute of Sugarbeet Physiology, Inner Mongolia Agricultural University, 010018, China | | SUN YAqing | Institute of Sugarbeet Physiology, Inner Mongolia Agricultural University, 010018, China | | ZHANG Shaoying | Institute of Sugarbeet Physiology, Inner Mongolia Agricultural University, 010018, China |
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| Abstract: |
| Ten traits indices were used for the evaluation of drought resistance of 30 sugarbeet germplasms in greenhouse during seedling stage under repeated drought stress. Through principal components analysis, five indices, namely leaf length, leaf width, underground biomass stress index, root/shoot stress index, and leaf thickness were screened, which had close relation to the drought resistance. With the membership function method, the drought resistance of 30 accessions of sugarbeet germplasms was evaluated. The correlation coef
ficient is 0.989 between the value of comprehensive evaluation and direct evaluation. Based on the value of comprehensive evaluation, the germplasms with strong drought resistance in seeding stage were: HI0466, BETA812 and ID204. |
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