Azhar Aidil, Asano Koki, Sugiura Daisuke, Kano-Nakata Mana, Ehara Hiroshi
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
School of Vocational Studies, IPB University, Bogor 16128, Indonesia.
Plants (Basel). 2022 Mar 7;11(5):710. doi: 10.3390/plants11050710.
Sago palm ( Rottb.) grows in well-drained mineral soil and in peatland with high groundwater levels until complete submersion. However, the published information on nutrient uptake and carbohydrate content in sago palms growing under waterlogging remains unreported. This experiment observed sago palm growth performance under normal soil conditions (non-submerged conditions) as a control plot and extended waterlogged conditions. Several parameters were analyzed: Plant morphological growth traits, nitrogen, phosphorus, potassium, and sugar concentration in the plant organ, including sucrose, glucose, starch, and non-structural carbohydrate. The analysis found that sago palm morphological growth traits were not significantly affected by extended waterlogging. However, waterlogging reduced carbohydrate levels in the upper part of the sago palm, especially the petiole, and increased sugar levels, especially glucose, in roots. Waterlogging also reduced N concentration in roots and leaflets and P in petioles. The K level was independent of waterlogging as the sago palm maintained a sufficient level in all of the plant organs. Long duration waterlogging may reduce the plant's economic value as the starch level in the trunk decreases, although sago palm can grow while waterlogged.
西米棕榈（Rottb.）生长在排水良好的矿质土壤和地下水位较高直至完全淹没的泥炭地中。然而，关于在涝渍条件下生长的西米棕榈的养分吸收和碳水化合物含量的已发表信息仍未报道。本实验观察了西米棕榈在正常土壤条件（非淹没条件）作为对照区和长期涝渍条件下的生长表现。分析了几个参数：植物形态生长特征、植物器官中的氮、磷、钾和糖浓度，包括蔗糖、葡萄糖、淀粉和非结构性碳水化合物。分析发现，长期涝渍对西米棕榈的形态生长特征没有显著影响。然而，涝渍降低了西米棕榈上部尤其是叶柄中的碳水化合物水平，并增加了根部尤其是葡萄糖中的糖水平。涝渍还降低了根部和小叶中的氮浓度以及叶柄中的磷浓度。钾水平与涝渍无关，因为西米棕榈在所有植物器官中都保持了足够的水平。尽管西米棕榈在涝渍条件下仍能生长，但长期涝渍可能会降低植物的经济价值，因为树干中的淀粉水平会下降。
