APP下载

优良食味新品种苏香粳3号栽培特性和成香机理研究

2015-10-21朱勇良叶亚新谢裕林等

安徽农业科学 2015年5期

朱勇良 叶亚新 谢裕林等

摘要 [目的]了解苏香粳3号的栽培特性和成香机理。[方法]研究了苏香粳3号的栽培特性,利用特异引物检测了其香味的基因型,并利用全二维时间质谱(GC×GCTOFMS)分析了致香物组分。[结果]苏香粳3号播种量为90.0 kg/hm2、施氮量为225.0 kg/hm2 时采取直播栽培产量最高;苏香粳3号的抗、耐高温逆境的能力较好,并且较适宜网室栽培。香味基因检测结果表明苏香粳3号受fgr 基因控制,第2外显子存在7 bp 的碱基缺失。利用全二维时间质谱分析获得了香稻特征化合物2乙酰基吡咯啉含量为0.021 5 mg/kg和初步的致香物组分。[结论]为苏香粳3号的推广应用提供了参考。

关键词 苏香粳3号;栽培特性;成香机理

中图分类号 S511.2+2 文献标识码

A 文章编号 0517-6611(2015)05-052-02

Cultivation Characteristics of New Good Eating Quality Rice Variety Su Xiangjing 3 and Its Mechanism of Aroma

ZHU Yongliang1, YE Yaxin2, XIE Yulin1et al (1. Institute of Agricultural Sciences in the Taihu Lake Region of Jiangsu Province, Suzhou, Jiangsu 215155; 2. Suzhou Science and Technology College, Suzhou, Jiangsu 215009)

Abstract [Objective] The aim was to understand cultivation characteristics and aroma mechanism of Su Xiangjing 3. [Method] The cultivation characteristics and aroma mechanism of Su Xiangjing 3 were analyzed by special primers and GC×GCTOFMS. [Result] The yield was highest under the direct seeding conditions simultaneously the seeding quantity was 90.0 kg/hm2 and nitrogen application amount was 225.0 kg/hm2. Su Xiangjing 3 had good resistance to high temperature stress and late sowing. The production structure was changed under the network culture conditions. By using genetic analysis and specific primers, it was found that the fragrance of Su Xiangjing 3 was controlled by gene fgr for 7 bp deletion in the second exon. Meanwhile, the GC×GCTOFMS technology was used to determine the aroma compounds of Su Xiangjing 3, the results found 53 types of aroma compounds, and 2acetylpyrroline content was 0.021 5 mg/kg. [Conclusion] The result provided reference for the application of Su Xiangjing 3.

Key words Su Xiangjing 3; Cultivation characteristics; Mechanism of aroma

基金項目 江苏省苏州市应用基础研究项目(SYN201202)。

作者简介 朱勇良(1965- ),男,江苏苏州人,副研究员,从事水稻遗传育种和优质高产栽培研究。

收稿日期 20141218

苏香粳3号,1999年在南京用江苏本地丰产品种武粳13号作母本,日本优质优味品种北明为父本配组,历时近10年的田间评价、室内鉴定和筛选,于2010年通过江苏省审定并定名;2009年申请植物新品种保护,2010年获得申请公告,公告号:CNA006188E。该品种由于抽穗期早,耐、抗高温能力较强,米饭口感优异,并且稻米商品性良好,深受适种地区广大农户的欢迎,展示了较好的生产应用和产业化开发的前景。鉴于此,笔者对该品种的栽培特性、香味的基因型、致香物成分进行了分析,旨在为该品种的推广应用提供理论依据。

1 材料与方法

登录APP查看全文