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首页> 外文期刊>Australian Journal of Crop Science >Tolerance of common bean (Phaseolus vulgaris L.) to different durations of simulated shallow water table condition
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Tolerance of common bean (Phaseolus vulgaris L.) to different durations of simulated shallow water table condition

机译：普通豆（Phaseolus vulgaris L.）对模拟浅水位条件不同持续时间的耐受性

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Shallow water table problem has lessened farmer’s interest in cultivating vegetables at riparian wetland in Indonesia. At present, riparian wetlands are mostly underutilized. Objective of this study was to evaluate tolerance of common bean (Phaseolus vulgaris) to shallow water table condition. Common bean variety of PV072 was used in this study. Research was conducted in Jakabaring, South Sumatra, Indonesia; from November 2016 to February 2017. Leaf and root growth or damage can be used as an indicator of stress tolerance in plants exposed to unfavorable soil conditions. Results of our study indicated that roots of common bean were unable to survive in water saturated condition below water table, but the plants were able to compensate for this constraint by increasing root biomass within aerobic substrate above water table. Moreover, after termination of shallow water table treatment, common bean was able to regrow their roots into the ex-saturated zone. Common bean plants produced marketable yield albeit limited rhizosphere space. Interestingly, the plants exposed to 24 days of shallow water table produced the highest yield. In conclusion, common bean can be considered as tolerant vegetable to shallow water table. It should be noted that bean leaf reached 90 percent and full size in less than 6 days and 9 days, respectively, after the young leaf was unfolded. Therefore, long term study on bean leaf growth and development requires measurement on sequential and multiple leaves. Also, nocturnal relative leaf expansion rate (RLER) was significantly faster than diurnal RLER.
机译：浅水位问题降低了农民在印度尼西亚河岸湿地种植蔬菜的兴趣。目前，河岸湿地大多未被充分利用。这项研究的目的是评估普通豆（菜豆）对浅水位条件的耐受性。在这项研究中使用了PV072的普通豆品种。研究在印度尼西亚南苏门答腊省贾卡巴林进行;从2016年11月至2017年2月。叶片和根的生长或损害可以用作暴露于不利土壤条件下的植物耐逆性的指标。我们的研究结果表明，普通豆的根无法在地下水位以下的水饱和条件下存活，但是植物能够通过增加地下水位以上好氧基质中的根生物量来弥补这一限制。此外，在浅水表处理终止后，普通豆能够将其根长入过饱和区。尽管有限的根际空间，普通豆类植物仍可产生可销售的产量。有趣的是，暴露于浅水表24天的植物产量最高。总之，普通豆可以被视为对浅水区的耐性蔬菜。应当指出，在幼叶展开后不到6天和9天，豆叶分别达到90％和全尺寸。因此，长期研究豆叶的生长和发育需要对连续叶和多叶进行测量。此外，夜间相对叶片膨胀率（RLER）明显比昼夜RLER快。

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