brachypterous

There were no macropterous females in the emerged offspring adults. ( 3) The longevity of brachypterous females was significantly different between the temperature levels, extended with the decreases of the temperature.

在整个试验过程中，没有长翅型雌虫的羽化。（3）短翅型雌成虫褐飞虱的寿命随着温度的降低而延长。

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The activities of CAT, GSH px, and SOD in macropterous adults were higher than those in brachypterous adults. There were no significant difference for the activities of CAT, GSH px and SOD between female and male adults(α> 0.05).

长翅型成虫体内CAT、GSH px、SOD活性均高于短翅型，而雌、雄成虫间CAT、GSH px、SOD活性无明显差异（α>0.05）。

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Brachypterous adults of the BPH are more sensitive to environmental factors, and cause greater loss of production than macropterous adults of the BPH.

褐飞虱短翅型雌虫较长翅型雌虫对环境因子的敏感度更高，且对生产造成的直接损失更大。

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The Philippine populations are almost brachypterous, however, the bracheypterous ratio of BPH males raise with the increase of nymphal density.

菲律宾热带种群雌虫在不同密度下均为短翅型，而雄虫的短翅率随密度增加而上升。

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The Zhejiang populations show low brachypterous ratios and have a negative correlation with nymphal density, belonging to the temperate type.

迁入地的浙江各种群属温带型，其雌虫短翅率低且与密度呈显著负相关；

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BPH feeding on rice plants at various stages have dfferent brachypterous ratios, tillering plants cause more brachypterous females than booting rice plants.

分蘖期水稻饲养的褐飞虱短翅型比例明显高于孕穗期水稻饲养的褐飞虱。

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The significantly negative relationship between female brachypterous rate and nymphal density in Zhejiang population showed a lower tolerance to high nymphal density of Zhejiang population than that of Guangxi and Yunnan populations.

广西和云南种群较能适应高密度环境，而浙江种群的适应性较差，其雌虫短翅率与若虫密度呈显著负相关。

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When treated with changing high temperatures, the preoviposition periods of both brachypterous and macropterous female adults were prolonged.

而高温变温处理致使短、长翅型雌成虫的产卵前期均延长。

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The Guangxi population have a high brachypterous ratio, being similar to the tropical type.

广西种群接近热带型，其雌虫短翅率高但不随密度而变化。

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