Polyethylene glycol induced drought stress strongly influences seed germination, root morphology and cytoplasm of different kenaf genotypes
| Autor: | Wei Fan, Aziz Khan, Danfeng Tang, Ruiyang Zhou, Muhammad Haneef Kashif, Sixian Qin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology 010405 organic chemistry food and beverages Polyethylene glycol biology.organism_classification 01 natural sciences Kenaf 0104 chemical sciences chemistry.chemical_compound Horticulture chemistry Seedling Cytoplasm Germination PEG ratio Genotype Agronomy and Crop Science 010606 plant biology & botany Hybrid |
| Zdroj: | Industrial Crops and Products. 137:180-186 |
| ISSN: | 0926-6690 |
| Popis: | Plants are sessile and therefore continuously confronted to drought stress. Therefore, a better understanding of different kenaf genotypes is essential. The objective of this study was to assess seed germination, root morphology and cytoplasmic effects of four types of kenaf cytoplasms i.e., C1, C2, C3, C4 under different concentration of polyethylene glycol (PEG). Results showed that seed germination was increased under 10% PEG treatment compared with control and 20% PEG treatment. Among the genotypes, the hybrids C2/992, C3/992, C4/992 resulted in better germination compared with P3B and FH992. The C2 cytoplasm had the most positive cytoplasmic effects on seed vigor at germination stage. Root growth was significantly inhibited under 10% PEG and 20% PEG at seedling stage. C3/992, P3A, and P3B had improved root growth compared with other treatments at seedling stage. Under 20% PEG conditions, C1, C2, C3, and C4 cytoplasms had inhibitory effect on root growth traits except C3 cytoplasm had a positive effect on root growth. Correlation analysis showed that hundred-grain weight (HGW) was significantly correlated to seed germination performance (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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