| 郭嘉雯，庞小轩，鲁艳辉，钱佳宁，徐红星*，吕仲贤,2025,盐胁迫对白背飞虱生态适应性的影响[J].环境昆虫学报,(5):1389-1395 |
| 盐胁迫对白背飞虱生态适应性的影响 |
| Effect of salt stress on the ecological adaptability of Sogatella furcifera (Hemiptera: Delphacidae) |
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| DOI： |
| 中文关键词: 盐胁迫 白背飞虱 若虫发育 成虫繁殖 卵发育 |
| 英文关键词:Salt stress Sogatella furcifera nymph development adult reproduction egg development |
| 基金项目:浙江省“三农九方”科技协作计划项目（2025SNJF046、2023SNJF006）；浙江省“尖兵”“领雁”研发攻关计划（2023C02018） |
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| 中文摘要: |
| 土壤盐碱化威胁水稻安全生产，盐胁迫作为关键非生物因子，既直接影响水稻，又间接影响稻田重要害虫的种群适应性。本研究通过测定白背飞虱Sogatella furcifera取食不同浓度NaCl（0、25 mmol/L、50 mmol/L、75 mmol/L和100 mmol/L）处理的水稻，研究了其若虫发育历期、存活率、成虫短翅型比例、雌成虫比例、产卵量、雌成虫寿命、卵发育历期和卵孵化率，评估了盐胁迫对其生态适应性的影响。结果显示，各盐胁迫处理下若虫发育历期与对照无显著差异。若虫存活率随盐浓度升高呈现先降后升再降趋势，25 mmol/L、75 mmol/L和100 mmol/L处理组若虫存活率显著低于对照，50 mmol/L处理组与对照无显著差异。盐胁迫显著改变成虫翅型分化，75 mmol/L处理组短翅型比例显著降低，但雌成虫比例未受影响。雌成虫产卵量在25 mmol/L和100 mmol/L组（分别为（129.40 ± 23.06）粒和（152.31 ± 14.37）粒）显著低于对照（283.41 ± 32.30）粒，雌成虫寿命无显著变化。所有盐胁迫处理均显著延长卵发育历期，但卵孵化率无显著差异。本研究阐明了盐胁迫对白背飞虱种群关键生物学参数的调控作用，为盐碱稻区该害虫的精准监测与生态防控策略制定提供了科学依据。 |
| 英文摘要: |
| Soil salinisation poses a threat to the safe production of rice. Salt stress, as a key abiotic factor, directly affects rice and indirectly influences the population adaptability of important rice field pests. This study assessed the impact of salt stress on the ecological adaptability of Sogatella furcifera by measuring the nymphal developmental duration, survival rate, proportion of short-winged adults, proportion of female adults, number of eggs laid per female, female adult longevity, egg developmental duration, and egg hatching rate of individuals fed rice treated with different concentrations of NaCl (0, 25 mmol/L, 50 mmol/L, 75 mmol/L, and 100 mmol/L). The results showed that the nymphal developmental duration did not differ significantly from the control group under any of the salt stress treatments. The survival rate of nymphs decreased initially, then increased, and decreased again with increasing salt concentration. The survival rates of nymphs in the 25 mmol/L, 75 mmol/L, and 100 mmol/L treatment groups were significantly lower than those in the control group, while there was no significant difference between the 50 mmol/L treatment group and the control group. Salt stress significantly altered adult wing morph differentiation, resulting in a significant decrease in the proportion of short-winged individuals in the 75 mmol/L treatment group, but the proportion of female adults was unaffected. The number of eggs laid per female in the 25 mmol/L [(129.40 ± 23.06) eggs] and 100 mmol/L [(152.31 ± 14.37) eggs] treatment groups was significantly lower than that of the control group [(283.41 ± 32.30) eggs], whereas female adult longevity showed no significant changes. All salt stress treatments significantly prolonged the egg development duration, but no significant differences were observed in egg hatching rates. This study elucidates the regulatory effects of salt stress on key biological parameters of S. furcifera population, providing a scientific basis for precise monitoring and development of ecological control strategies against this pest in saline-alkali rice areas. |
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