CAJ | 학술논문

为了研究干旱胁迫对芸豆种子萌发的影响，以“60天还家”芸豆种子为材料，采用培养皿滤纸萌发的方法，以不同浓度PEG（聚乙二醇）溶液模拟干旱条件，对芸豆种子萌发特性进行研究。结果表明，不同浓度的PEG干旱胁迫对芸豆种子萌发产生不同程度影响，低浓度（5%~15%）的胁迫作用小，高浓度（15%以上）的胁迫作用大。芸豆种子萌发期的不同指标对不同浓度胁迫反应不同，尤其种子发芽指数及种子活力指数的反应最为显著。15%PEG浓度对芸豆种子各指标均产生显著抑制，是PEG模拟芸豆干旱胁迫的有效浓度，可作为芸豆萌发期利用PEG进行抗旱性鉴定的试验浓度。
위료연구간한협박대예두충자맹발적영향，이“60천환가”예두충자위재료，채용배양명려지맹발적방법，이불동농도PEG（취을이순）용액모의간한조건，대예두충자맹발특성진행연구。결과표명，불동농도적PEG간한협박대예두충자맹발산생불동정도영향，저농도（5%~15%）적협박작용소，고농도（15%이상）적협박작용대。예두충자맹발기적불동지표대불동농도협박반응불동，우기충자발아지수급충자활력지수적반응최위현저。15%PEG농도대예두충자각지표균산생현저억제，시PEG모의예두간한협박적유효농도，가작위예두맹발기이용PEG진행항한성감정적시험농도。
In order to study the effects of drought stress on germination of kidney bean seed,the kidney bean seeds of cultivar‘Sixty Days Huan Jia’were evaluated under simulated drought stress condition by using different concentrations of polyethylene glycol (PEG)in vitro. The results indicated that the different PEG concentrations had different effects on the germination of kidney bean seeds. Low concentrations(5%-15%)had the little effects on kidney bean seeds,while high concentrations(>15%)had a large effects on kidney bean seeds. The response of different indexes on PEG stress was different during germination period of kidney bean seeds, the response of germination index and vigor index. When the concentration of PEG was up to 15%,all kinds of indexes were significantly inhibited. Therefore,15%PEG was an effective concentration for simulated drought stress against to kidney bean seeds, and would be used as an appropriate experimental concentration for the drought tolerance evaluation of kidney bean.