%0 Journal Article
%T 水分胁迫对玉米苗期生长性状的影响<br>Effects of Water Stress on Growth Traits of Maize Seedling
%A 高琼
%A 邹原东
%J Hans Journal of Agricultural Sciences
%P 474-481
%@ 2164-5523
%D 2019
%I Hans Publishing
%R 10.12677/HJAS.2019.96071
%X <div style=\"text-align:justify;\">
	<span style=\"font-size:14px;\">通过观察玉米杂交种在干旱环境下的生长性状表现，用玉米幼苗期的萌发抗旱指数来评价玉米的抗旱性，为抗旱品种选育提供借鉴。本试验采用PEG-6000水溶液模拟干旱环境，比较4个玉米品种在幼苗期的发芽率、萌发性状的变化。研究表明，随着天数的增加，4个品种的发芽率都表现为先增加后降低，在4%~6%的PEG-6000水溶液浓度下玉米品种的发芽率高于其它浓度；TN1在干旱胁迫下种子萌发指数相对较高，从萌发抗旱指数的差异分析来看，TN1同NT2、TN3、TN4相比差异极显著(p &lt; 0.01)。试验材料的萌发性状表现同抗旱指数差异性表现一致，可以用来鉴定玉米萌发期的抗旱性强弱。<br />
The drought resistance of maize was evaluated by germination drought resistance index at seedling stage, which could be used for reference in breeding drought resistant varieties. In this experiment, PEG-6000 aqueous solution was used to simulate the drought environment to compare the germination rate and germination characteristics of four maize varieties in the seedling stage. The study showed that the germination rate of the four varieties increased first and then decreased with the increase of days. The germination rate of 4% - 6% PEG-6000 aqueous solution was higher than other concentrations. TN1 had higher germination drought-resistant index. From difference analysis of sprout index of drought resisting, the difference was extremely significant compared TN1 with NT2, TN3 and TN4 (p &lt; 0.01). The germination traits of the test materials were consistent with the difference of drought resistance index, which could be used to identify the drought resistance of maize during germination.</span> 
</div>
%K PEG-6000水溶液，水分胁迫，苗期<br>PEG-6000
%K Water Stress
%K Seedling
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=30968