【摘要】 为探究琼胶寡糖作为叶面肥的效果,本研究以秋葵为试验材料,以复合肥作为基肥(对照),在秋葵的生长过程中分别增施0.2‰琼胶寡糖(0.2‰OA)、海藻肥基肥(SF),测定秋葵的生长指标、果实参数及营养品质。结果表明,与对照相比,0.2‰OA显著促进了秋葵植株的生长并提高了果实产量和营养品质(P<0.05)。0.2‰OA组的秋葵产量较对照提高41.56%,果实中营养物质黄酮、果糖、果胶、游离氨基酸、可溶性糖和Vc分别增加0.39个百分点、29.33%、93.28%、36.09%、19.75%和18.14%。海藻肥的促进效果虽稍逊于琼胶寡糖,但与对照相比仍有显著改善(P<0.05)。SF组产量较对照提高14.74%,其营养物质黄酮、果胶、游离氨基酸、可溶性糖和Vc分别增加0.31个百分点、27.67%、13.26%、6.00%和5.07%。综上,琼胶寡糖能够明显改善果蔬的生长及品质,在高品质果蔬的生产中具有较大应用潜力。本研究结果为琼胶寡糖在高品质农业生产中的应用提供了理论依据。更多还原

【Abstract】 In order to explore the effects of oligoagars(OA) as a foliar fertilizer, okar(Abelmoschus moschatus) was tested in this study. Compound fertilizer as the basic fertilizer(control group), 0.2‰ OA and seaweed fertilizer(SF) were applied as the experimental groups, and the growth indexes, fruit parameters and nutritional qualities of okra were measured for each group. The results showed that 0.2‰ OA significantly promoted the plant growth and improved fruit yield and nutritional quality(P<0.05). Compared with the control groups, the yield of okra in the 0.2‰ OA group increased by 41.56%, the content of nutrients such as flavone, fructose, pectin, free amino acid, soluble sugar, and Vc increased by 0.39 percentage points, 29.33%, 93.28%, 36.09%, 19.75%, and 18.14%, respectively. Although the promotion effect of seaweed fertilizer was slightly lower than that of 0.2‰ OA, it was still significantly improved compared with the control group(P<0.05). Compared with the control group, the yield of okra in the SF groups increased by 14.74%, the content of nutrient such as flavone, pectin, free amino acid, soluble sugar, and Vc increased by 0.31 percentage points, 27.67%, 13.26%, 6.00% and 5.07%, respectively. In summary, oligoagars had great potential to improve the yield and quality of vegetables, which could be popularized in the high-quality agricultural production. The results provided a theoretical basis for the application of oligoagars in high-quality agricultural production.更多还原