---

作 者 ：杨建昌;袁莉民;唐成;王志琴;刘立军;朱庆森

期 刊 ：作物学报 2005年 31卷 08期 页码：1052-1057

关键词：水稻；干湿交替灌溉；米质；RVA；淀粉合成关键酶；

Keywords:Rice, Dry-wet alternate irrigation, Grain quality, RVA, Key enzymes in starch synthesis,

摘 要 ：在土培池和大田试验条件下，观察了结实期干湿交替灌溉对武育粳3号(粳稻)和扬稻6号(籼稻)米质和籽粒中淀粉合成关键酶活性的影响以及它们之间的关系。与对照(保持水层)相比，轻干－湿交替灌溉(土壤干至土壤水势为－25 kPa时复水)增加了结实率和粒重，降低了垩白粒率和垩白度，提高了淀粉的最高黏度和崩解值，减小了热浆黏度、

Abstract:Improvement in rice quality is an important target in the production. This study investigated whether the practice of dry-wet alternate irrigation during the grain filling period could improve the grain quality and whether the key enzymes in sucrose-to-starch conversion in rice grains are involved i

---