CAJ | 학술논문

利用根袋盆栽试验,初步比较了有色稻(龙晴四号和黑米120)和常规稻(秀水 48 和S.Andrea)苗期富Se能力的差异,并分析了富Se能力与根际特征的相关性.结果表明,植株富Se能力与稻种颜色无直接关系,而与茎叶Se转运能力关系更为密切.无论土壤施Se与否,富Se品种均表现出较强的茎叶Se转运能力,但与有色稻相比常规品种显示出较高的Se肥效应.富Se品种在植株N、P养分的吸收利用上同样表现出强的能力,其累积顺序与Se累积顺序一致:秀水48＞龙晴四号＞黑米120＞S.Andrea;相关分析表明,4个水稻品种茎叶Se含量与茎叶N、P含量及根际速效P亏缺率显著相关,而与根际K和pH值无关.无论有色稻还是常规稻,较高的茎叶Se转运能力可能是其富Se原因之一.
이용근대분재시험,초보비교료유색도(룡청사호화흑미120)화상규도(수수 48 화S.Andrea)묘기부Se능력적차이,병분석료부Se능력여근제특정적상관성.결과표명,식주부Se능력여도충안색무직접관계,이여경협Se전운능력관계경위밀절.무론토양시Se여부,부Se품충균표현출교강적경협Se전운능력,단여유색도상비상규품충현시출교고적Se비효응.부Se품충재식주N、P양분적흡수이용상동양표현출강적능력,기루적순서여Se루적순서일치:수수48＞룡청사호＞흑미120＞S.Andrea;상관분석표명,4개수도품충경협Se함량여경협N、P함량급근제속효P우결솔현저상관,이여근제K화pH치무관.무론유색도환시상규도,교고적경협Se전운능력가능시기부Se원인지일.
Rhizobag pot experiment was carried out to compare Se accumulation ability in rice seedlings between colored (Longqing4 and Heimi120) and general (Xiushui48 and S.Andrea) rice cultivars,and the correlation between Se accumulation ability and rhizosphere characteristics.The results showed that Se accumulation ability in rice seedlings did not correlated with rice grain color,but correlated with the ability of transporting Se to shoots from roots.Xiushui48 and Longqing4 had higher capacity to accumulate Se in shoots at different Se treatments.General rice cultivars had higher response to Se application.Se-enriched rice varieties also had greater capacity of uptake and accumulate N,P in shoots,and the order was:Xiushui48 > Longqing4> Heimi120 > S.Andrea.Correlation analysis indicated that there were significant correlations between shoot Se and shoot P or shoot N contents.No correlation occurred between shoot Se and shoot K or rhizospheric pH.Higher (shoot Se)/(root Se) ratio might be one of the reasons for Se-enrichment in both colored and general rice.