中国农业科学2012，Vol.45Issue(6)：1054-1065,12.DOI:10.3864/i.issn.0578-1752.2012.06.003
增香栽培对香稻香气和产量的影响及其相关生理机制
Effects of Increasing Aroma Cultivation on Aroma and Grain Yield of Aromatic Rice and Their Mechanism
摘要
Abstract
[Objective] The purpose of this study was to investigate the effects of increasing aroma cultivation on aroma and grain yield of aromatic rice and their mechanism. [Method] A field contrast experiment was conducted with, four conventional aromatic rice cultivars, Guixiangzhan, Meixiangzhan 2, Zhongxiang 1 and Raopingxiang, to evaluate the effects of increasing aroma cultivation(IAC) and conventional cultivation(CK) on aroma (2-acetyl-l-pyrroline) content in brown rice, biological characteristics and grain yield and its components of aromatic rice. [Result] The results showed that, compared with CK, increasing aroma cultivation could significantly increase 2-acetyl-l-pyrroline content in brown rice and milled rice, fiee proline content and proline oxidase activity in flag leaves and rice grains during post-heading and filling stages, and chlorophyll content(SPAD) in leaf (flag leaf) and leaf area index (LAI) at the main growth stages, dry matter translocatioc rate of stem-sheath, population photosynthesis potential during post-heading and filling stages, effective panicles, the total group of actual production, seed setting rate and yield, while it had no significant effect on 1 000-grain weight. [Conclusion] Increasing aroma cultivation could significantly increase free proline content and proline oxidase activity in flag leaves and grains of aromatic rice, then significantly increase the accumulation of 2-Acetyl-l-pyrroline(2-AP) in brown rice. Increasing aroma cultivation could also significantly enhance dry matter translocation rate of stem-sheath and population photosynthetic capacity during post-heading and filling stages, and then significantly increase theeffective panicles the total group of actual production and seed setting rate, therefore, increasing aroma cultivation could increase not only aroma content but also the grain yield.关键词
香稻/增香栽培/香气/产量Key words
aromatic rice/increasing aroma cultivation/aroma/yield引用本文复制引用
黄忠林,唐湘如,王玉良,陈慕娇,赵正琨,段美洋,潘圣刚..增香栽培对香稻香气和产量的影响及其相关生理机制[J].中国农业科学,2012,45(6):1054-1065,12.基金项目
国家自然科学基金项目(30671221)、高等学校博士学科点专项科研基金(41002C08023)、广东省自然科学基金项目(8151064201000017)、广东省农业攻关项目(2006A20303001)、广东省农业标准化项目(4100F10003) （30671221）
