文档介绍：
不同水分条件下高产水稻与节水抗旱稻的
群体性状特征#
万静1,2,王凯1,2,陈畅1,2,崔克辉1,2,黄见良1,2,聂立孝1,2,彭少兵1,2**
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(1. 华中农业大学植物科学技术学院,武汉 430070;
2. 农业部长江中游作物生理生态与耕作重点实验室,武汉 430070)
摘要:本研究于 2011 和 2012 年在湖北武穴以高产水稻品种黄华占、扬两优 6 号和节水抗旱
水稻品种旱优 5919、旱优 3 号以及新育成水稻品种金科优 938 为试验材料,设置淹灌和雨
养两种水分条件,探明不同水稻品种在不同水分管理条件下群体性状的差异。结果表明,两
种水分条件下,高产水稻品种黄华占和扬两优 6 号的产量显著高于节水抗旱稻旱优 5919 和
旱优 3 号。与高产水稻品种相比,节水抗旱水稻品种的群体生长速率更高,但两者光能转化
效率无显著性差异。而在花前干物质转运、分蘖能力和粒叶比上高产水稻品种显著高于节水
抗旱稻品种。因此,未来节水抗旱水稻品种的选育和改良还应在花前干物质转运、分蘖能力
和粒叶比性状上加以提高。
关键词:作物栽培学;雨养;产量;群体性状
中图分类号:
Agronomic traits of high-yielding and drought-resistance
rice varieties grown under different water conditions
WAN Jing1,2, WANG Kai1,2, CHEN Chang1,2, CUI Kehui1,2, HUANG Jianliang1,2,
NIE Lixiao1,2, PENG Shaobing1,2
(1. College of Plant Sicience and Technology, Huazhong Agricultural University, WuHan 430070;
2. MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of
the Yangtze River, WuHan 430070)
Abstract: This study was conducted to determine the differences of agronomic traits among five
rice varieties grown under continuously flooded (CF) and rainfed (RF) conditions. High-yielding
varieties (Huanghuazhan, HHZ, an inbred variety; Yangliangyou6, YLY6, a hybrid variety;
Jinkeyou938, JKY938, a hybrid variety) and water-saving and drought resistant rice (WDR)
varieties (Hanyou5919, HY5919, a hybrid variety; Hanyou3, HY3, a hybrid variety) were grown
under CF and RF conditions in Wuxue, Hubei in 2011 and 2012. Grain yield of the high-yielding
rice varieties HHZ and YLY6 were higher than WDR varieties HY5919 and HY3. Compared with
the high-yielding varieties, the crop growth rate of WDR varieties was higher, but there was
insignificant difference in the radiation use efficiency between the two groups. Furthermore, the
biomass translocation from straw to grain, tiller number and the ratio of grain number to leaf area
of WDR varieties were lower than the high-yielding varieties. Our