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旱后复水对水稻生长的后效影响(Aftereffects of Rewatering after Water Stress on the Rice Growth)
水稻 水分胁迫 复水 后效性
2010/12/29
通过盆栽和测坑试验,研究了水分胁迫后复水对水稻生育后期的后效性影响。结果表明:水稻前期旱后复水后效性明显,尤以分蘖末期短历时重旱、拔节初期短历时轻旱后效性最佳。前期适度的胁迫后复水使水稻后期保持了较大的光合面积,明显降低生育后期叶绿素的降解,使功能叶在生育后期维持较高的光合效率,有利于干物质累积。
Aboveground arthropod pest and predator diversity in irrigated rice(Oryza sativa L)production systems of the Philippines
Biological control Immigration Shannon index Species richness Evenness Dominance
2009/2/19
Abundance and diversity of pest and predator species at different stages of crop growth were studied in chemical insecticidetreated and untreated irrigated rice production systems of the Philippines i...