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Seasonal variations of carbohydrates in Pueraria lobata related to growth and phenology
Weed Biology and Management ( IF 1.3 ) Pub Date : 2017-06-01 , DOI: 10.1111/wbm.12124
MD H. Rashid 1, 2 , MD N. Uddin 3 , Takashi Asaeda 1 , Randall W. Robinson 4
Affiliation  

The seasonal changes of non-structural carbohydrates (NSCs), water-soluble carbohydrates (WSCs) and starch concentrations were examined in Pueraria lobata throughout its life cycle in order to elucidate the potential points in the seasonal growth and phenological cycles for its improved control. The study was carried out at two different habitat zones with distinct soil conditions in the riparian zone of the Tama River, Tokyo, Japan. One zone, with sandy soil, had lower levels of available nitrogen and phosphorous, while the second zone contained high levels of organic matter and nutrients. The highest and lowest concentrations of the NSC pools in the roots of P. lobata were observed in December and August, respectively, at both study sites. The lowest NSC reserves were attained at the end of the vegetative stage, with the highest NSC reserves found at the end of the reproductive stage. The WSCs gradually decreased from April to August in the roots and then increased until February. The starch concentrations of all the plant organs followed the same pattern as for the WSCs. The stems and leaves did not show the same pattern as did the roots. The total carbohydrate concentrations and pools did not show significant variation between the two sites, suggesting that the soil conditions had very little effect on carbohydrate production in the different organs of the plant. The study suggests that to control P. lobata effectively, the above-ground biomass should be removed at any date between the end of August and early September.

中文翻译:

葛根中碳水化合物的季节性变化与生长和物候相关

对葛根生命周期中非结构性碳水化合物 (NSCs)、水溶性碳水化合物 (WSCs) 和淀粉浓度的季节性变化进行了检查,以阐明其改善控制的季节性生长和物候循环中的潜在点。该研究是在日本东京多摩河沿岸地区具有不同土壤条件的两个不同栖息地区域进行的。第一个区域为沙质土壤,可用氮和磷含量较低,而第二个区域的有机质和养分含量较高。在两个研究地点分别在 12 月和 8 月观察到了 P. lobata 根中 NSC 池的最高和最低浓度。在营养阶段末期达到最低的 NSC 储备,在生殖阶段末期发现的 NSC 储备最高。WSCs从4月到8月在根部逐渐减少,然后增加到2月。所有植物器官的淀粉浓度遵循与 WSC 相同的模式。茎和叶没有显示出与根相同的图案。两个地点之间的总碳水化合物浓度和池没有显示出显着差异,这表明土壤条件对植物不同器官中碳水化合物的产生影响很小。该研究表明,为了有效控制 P. lobata,应在 8 月底和 9 月初之间的任何日期清除地上生物量。WSCs从4月到8月在根部逐渐减少,然后增加到2月。所有植物器官的淀粉浓度遵循与 WSC 相同的模式。茎和叶没有显示出与根相同的图案。两个地点之间的总碳水化合物浓度和池没有显示出显着差异,这表明土壤条件对植物不同器官中碳水化合物的产生影响很小。该研究表明,为了有效控制 P. lobata,应在 8 月底和 9 月初之间的任何日期清除地上生物量。WSCs从4月到8月在根部逐渐减少,然后增加到2月。所有植物器官的淀粉浓度遵循与 WSC 相同的模式。茎和叶没有显示出与根相同的图案。两个地点之间的总碳水化合物浓度和池没有显示出显着差异,这表明土壤条件对植物不同器官中碳水化合物的产生影响很小。该研究表明,为了有效控制 P. lobata,应在 8 月底和 9 月初之间的任何日期清除地上生物量。两个地点之间的总碳水化合物浓度和池没有显示出显着差异,这表明土壤条件对植物不同器官中碳水化合物的产生影响很小。该研究表明,为了有效控制 P. lobata,应在 8 月底和 9 月初之间的任何日期清除地上生物量。两个地点之间的总碳水化合物浓度和池没有显示出显着差异,这表明土壤条件对植物不同器官中碳水化合物的产生影响很小。该研究表明,为了有效控制 P. lobata,应在 8 月底和 9 月初之间的任何日期清除地上生物量。
更新日期:2017-06-01
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