Physicochemical properties and biological activities of polysaccharides from the peel of Dioscorea opposita Thunb.extracted by four different methods

Polysaccharides are the important biologically active components found in the peel of Dioscorea opposita Thunb.(DTTP).The influences of 4 extraction methods,namely hot water extraction(W),acidic extraction(HA),hot-compressed water extraction(HCW)and enzyme-assisted extraction(EAE),on the yields,physicochemical properties,hypoglycemic and antioxidant activities of polysaccharides from DTTP were studied and compared.Among these DTTP polysaccharides,DTTP-HA was outstanding in several respects.DTTP-HA was the most water soluble;it had the highest total carbohydrate content(85.08%),the highest uronic acid(13.20%)and the highest thermal stability.DTTP-HA and DTTP-W possessed a triple-helix structure.These 4 kinds of polysaccharides have the same types of monosaccharides,but in different molar percentages.Extraction method had a significant impact on the microstructures of the extracted polysaccharides.DTT-HA exhibited irregular structure with many holes.Among the 4 extracted methods,the DTTP-HA and DTTP-W initially exhibited higher hypoglycemic and antioxidant activities.The better bioactivities of DTTP-HA may be related to the above factors.The findings indicated that acid extraction is an effective method to extract polysaccharides with high biological activities from DTTP.

Effect of Plant Growth Hormones and Liquid Fertilizer on Rooting and Tuberization of Yam (<i>Dioscorea rotundata</i>Poir.) Vine Cuttings

Vine cutting is an effective solution to solve the problem of seed availability in yam cultivation. This study was conducted to improve the recovery and rooting rate of vine cuttings of Dioscorea rotundata. Two-node cuttings from five (5)-month-old hybrid plants were grown in liquid media consisting of phytohormones (AIA3 and GA3) and liquid fertilizer (NPK 8-8-8) at different concentrations. Observations were made weekly from the 21st day after transplanting and focused on the survival rate of the cuttings, the number of roots emitted and the number of minitubers initiated. The results obtained showed a significant effect of the different growing media on the survival rate, rooting and production of minitubers. The best survival rates were obtained for cuttings grown in NPK (8-8-8) at 0.25% (100%) and AIA3 at 25 ppm (93.3%). The highest averages root number was recorded with growing media containing 0.25% NPK 8-8-8 (20.3) and 25 ppm AIA3 (17.7). Growing media with 0.25% NPK (8-8-8) and 25 ppm AIA3 provided the highest average numbers of minitubers initiated, respectively 5 and 4.6. Growing medium containing 0.25% NPK 8-8-8 has been identified as the one that allows better roots emission and minitubers production by yam vines cuttings.

Effect of 24-Epibrassinolide on Growth of <i>in Vitro</i>Shoot Tips of Different Yam (<i>Dioscorea</i>Spp.) Species

In this work we compared the effect of the growth regulator content of the culture medium on the growth of in vitro shoot tips of five yam accessions belonging to four yam species (one Dioscorea alata, one D. rotundata, one D. cayenensis and two D. trifida). Medium S contained 0.6 μM benzyl adenine, 1.07 μM naphthalene acetic acid and 0.23 μM gibberellic acid while medium EBR contained 0.23 μM gibberellic acid and 0.1 μM 24-epibrassinolide. After 2 months of culture, oxidation level was significantly reduced on medium EBR compared to medium S for four of the five accessions tested. By contrast, medium EBR did not have any positive effect on shoot length since length of shoots produced after 2 months of culture on medium S and EBR were similar, except with accession 3-45T, for which shoot length was shorter on medium S compared to medium EBR. These results underline the potential of 24-epibrassinolide to reduce oxidation phenomena during in vitro culture and call for its utilization for regeneration of cryopreserved yam shoot tips, which is often impeded by oxidation phenomena.

Effect of Curing Treatments on Seven Key Farmers’ Yams (<i>Dioscorea</i>spp.) in Ghana

Curing of freshly harvested yams (Dioscorea spp.) is a process for wounded yams during harvest to heal. In this work the effectiveness of straw, polypropylene and jute sack on curing of seven key farmers’ yam varieties over a duration of 7, 14 and 21 days was studied. Seven key farmers’ yam varieties identified as Pona, Lariboko, Dente, Mutwumudoo, Serwah belonging to D. rotundata, Matches and Akaba belonging to D. alata were studied under different curing treatments. The percentage weight loss of yam tubers varied among the treatments over curing period. Curing under jute sack showed all yam varieties had weight losses less than 2.0%, within 7 days of curing. Five different varieties had weight loss less than 2.0% except Dente under the straw treatment. Mutwumudoo variety showed the highest water loss (8.4%) for polypropylene sheet and 6.9% for Lariboko in the control treatment. During 7 days curing the control and polypropylene treatment did not support yam curing. After 14 days of curing of tubers, similar tends were observed as in 7 days curing. After 14 days of curing under jute sack, percentage weight loss of the tubers ranges from 2.0% - 3.7%. In the straw treatment, the percentage weight loss ranges between 1.0% - 4.7% in all other varieties except Dente (D. rotundata) (8.2%). Polypropylene sheet treatment showed the highest percentage weight loss in Mutwumudoo variety (18.4%). A similar trend was observed for the yam tubers cured for 21days as percentage weight loss of tubers under jute sacks was 2.5 – 9.8%. Curing temperature and humidity ranged between 27&degC - 40&degC and 87% - 100% rh for yam tubers under the three different treatments of polypropylene, jute and straw. However, the control treatment recorded lower humidity of 60% - 80% rh. Curing material, duration, climatic conditions and yam varieties influenced curing and Serwah variety, which is a D. rotundata is the best bet yam variety to cure under jute sack for 7, 14 and 21 days of curing.

Comparative Study on the Structural and Physicochemical Properties of Flour and Starch from Dioscorea opposita Thunb

The objective of this work was to investigate and compare the structural and physicochemical properties of Dioscorea opposita Thunb. flour（DF）, starch（DS） and purified starch（PDS）. DS and PDS showed higher total starch and amylose content as compared to DF. Starch granules of DF were oval shape with rough surface while DS and PDS were relatively smooth by SEM. According to XRD measurements, FT-IR spectroscopy and 13 C CP/MAS NMR spectroscopy, all samples displayed C-type crystalline pattern, and PDS displayed the highest relative crystallinity and short-range order structure. However, DF contained the greatest content of the amorphous-phase. DF displayed the absorption peaks at 1730 and 1560 cm^-1 related to the characteristic groups of lipid and protein using FT-IR spectroscopy. Furthermore, DF exhibited significantly higher pasting temperature while DS displayed the great peak and breakdown viscosity, as well as PDS had the highest setback and final viscosity, presumably due to the chemical composition and structural differences. DF exhibited the highest gelatinization temperature whereas PDS displayed the greatest gelatinization enthalpy. The pasting and gelatinization properties of flour and starch might be related to the relative crystallinity, short-range order structure or the interactions between starch and its associated compounds. The results allow the improvement in the manufacture of Dioscorea opposita Thunb. flour and starch with desirable pasting and gelatinization properties.

Cultivar and Soil Fertilizer Treatment Affect Seed Production of Sweet Yellow Yam (<i>Dioscorea dumetorum</i>) on Highly Acidic Soils of the Western Highlands Region of Cameroon

The popularization of Dioscorea dumetorum (Dioscoreaceae), a nutritious yam species is still marginal due to constraints such as the low interest of research, poor cultural practices, insufficient and expensive seeds, pests, and diseases. The latter pushes producers to use about 50% of their harvest as seed for the next planting season. The lack of a specific fertilizer formulation for yam production on the oxysols of Cameroon is another constraint. This study was aimed at enhancing the availability of quality seeds through the characterization of five yam accessions. One experiment was performed to determine the effect of cultivar and origin of tuber sets on their germination rate. The second concerned the evaluation of cultivars and soil treatment effects on agronomic parameters of yam seedlings. Yam cultivars were subjected to nine fertilizer formulations as follows: T0: no fertilizer;T1: mycorrhizal fungi (MF) + 150 g manure + peanut waste;T2: 25 g chemical fertilizer (20.10.10);T3: MF + peanut waste;T4: 16 g chemical fertilizer (12.6.20);T5: 25 g (20.10.10) +100 g CaO + 150 g manure;T6: 100 g CaO + 150 g manure;T7: 20 g tropicote + 2 g DAP (Diammonium phosphate, a reference starter fertilizer coded N18P46) + 100 g CaO + 150 g manure;and T8: mycorrhiza. These treatments were tested in a factorial design. Results show that Ibo sweet 3 and Mabondji sweet white 1 yam accessions were less affected by anthracnose disease on the aerial parts. Guzang 1 showed the best germination rate and yield, making it appropriate for cultivation in the region. Soil treatments, T2, T5, T7 and T8 significantly increased the yield of yam cultivars. Mycorrhiza treatment alone gave a better response to seed weight, indicating the interest of this biofertilizer as a solution for good seedling production. These fertilizer treatments can be recommended to farmers for more seed production with optimum seed weight (300 g).

干燥方式对铁棍山药片挥发性风味成分的影响

采用顶空固相微萃取结合气相色谱-质谱联用技术(HS-SPME-GC-MS)和电子鼻,分别测定热风干燥、微波干燥、真空干燥、真空冷冻干燥、联合干燥5种干燥方式加工的铁棍山药片的挥发性风味成分,并结合主成分分析,研究干燥过程中山药片风味的变化。结果表明,在5种干燥方式制得的山药片中,共检出95种挥发性成分,主要包括烃类、醛类、酮类、醇类、酯类、苯类和杂环化合物等。壬醛、癸醛、2,6,10-三甲基十四烷、香叶基丙酮是山药片中的主要风味物质。热风干燥、真空干燥、微波干燥所得山药片的主要挥发性物质有烃类、苯类和醛类;真空冷冻干燥、联合干燥所得山药片的主要挥发性物质有烃类、醛类和酮类。电子鼻检测结果表明,5种干燥方式制得的山药片风味存在一定差异,其中热风干燥和真空干燥所得山药片的风味在醇、部分芳香族化合物上具有相似性,真空冷冻干燥山药片与其它干燥方式山药片的风味差异主要是含氮化合物、含硫化合物。这与GC-MS分析结果一致。根据主成分分析法建立了山药片香气品质评价模型,得出联合干燥方式制得的山药片综合得分最高,香气品质最好,其次为真空冷冻干燥、微波干燥、热风干燥、真空干燥。

浅生定向槽种植淮山药产量与品质分析

为完善和优化淮山药浅生定向槽种植技术,明确其栽培成效,在江苏省3个淮山药产地设置浅生定向槽种植与传统粉垄种植的田间比较试验,探究浅生定向槽种植对淮山药产量、品质和口感的影响。结果表明,与传统粉垄种植相比,浅生定向槽种植淮山药单株块茎生物量显著提升,块茎中总皂苷含量显著增加,但块茎口感的细腻度有所降低,硬度增高。综合认为,应用淮山药浅生定向槽种植可提升块茎产量和功能品质;尤其在土壤较黏重、垂直种植种收作业较困难的产区,更应提倡应用淮山药浅生定向槽种植技术。

加减薯蓣丸抑制EphA4/RhoA/Rock信号通路改善血管性痴呆伴抑郁小鼠髓鞘再生及抑郁行为

目的观察加减薯蓣丸对血管性痴呆(vascular dementia,VD)伴抑郁小鼠的疗效并探究其作用机制。方法采用双侧颈总动脉狭窄法结合慢性不可预测温和刺激复制VD伴抑郁小鼠模型,将小鼠分为假手术组、模型组、加减薯蓣丸组以及氟西汀组。采用行为学实验检测小鼠抑郁行为,免疫荧光法检测小鼠胼胝体血小板衍生生长因子受体α(platelet-derived growth factor receptor alpha,PDGFRα)、髓鞘碱性蛋白(myelin basic protein,MBP)表达水平,Western blot法检测MBP、少突胶质细胞糖蛋白(myelin oligodendrocyte glycoprotein,MOG)、髓鞘相关糖蛋白(myelin associated glycoprotein,MAG)、酪氨酸蛋白激酶EPH受体A4(Ephrin receptor A4,EphA4)、Ras同源基因家族成员-A(Ras homolog gene family,member A,RhoA)、轴突生长抑制因子-A(neurite outgrowth inhibitor-A,Nogo-A)、Rho相关卷曲螺旋蛋白激酶(Rho associated coiled-coil forming protein kinase,Rock)、Nogo受体(Nogo receptor,NgR)的蛋白表达水平,劳克坚牢蓝(Luxol fast bue,LFB)染色法观察胼胝体髓鞘结构,超微透射电子显微镜观察髓鞘超微结构。结果行为学检测结果显示,加减薯蓣丸组及氟西汀组小鼠在旷场实验中活动总路程显著增加(P<0.05),糖水偏好率显著升高(P<0.05),强迫游泳实验中不动时间明显增加(P<0.05);免疫荧光染色结果显示,加减薯蓣丸、氟西汀均可增加PDGFRα、MBP荧光强度;LFB染色结果显示,与假手术组比较,模型组小鼠LFB髓鞘染色缺失,存在脱髓鞘改变,加减薯蓣丸能改善VD抑郁小鼠髓鞘着色程度;Western blot法检测结果显示,与假手术组比较,模型组小鼠胼胝体中MBP、MOG、MAG表达水平显著下降(P<0.05),加减薯蓣丸组小鼠MBP、MOG、MAG表达水平显著升高(P<0.05);加减薯蓣丸组小鼠胼胝体中EphA4、RhoA、Rock、Nogo-A、NgR蛋白表达水平显著降低(P<0.05)。结论加减薯蓣丸可能通过抑制EphA4/RhoA/Rock通路促进髓鞘再生,改善VD小鼠的抑郁状态。

叶喷水杨酸对山药(Dioscorea alata L.)地下块茎蔗糖—淀粉转化影响(英文)

【目的】阐明叶喷水杨酸(SA)对山药地下块茎蔗糖—淀粉转化的影响,为了解山药蔗糖转化机制、提高其淀粉形成提供参考。【方法】设置SA 0.0(对照)、0.5、1.0和5.0 mmol/L 4个处理,在山药(Dioscorea alata L.)"白扁"地下块茎形成的早期和后期分别进行叶面喷施,定期采样测定地下块茎主要碳水化合物含量和蔗糖裂解与淀粉形成的相关酶活性。【结果】除5.0 mmol/L SA处理的后期地下块茎总可溶性糖(TSS)含量急剧增加外,地下块茎的TSS、蔗糖、葡萄糖、果糖、淀粉、直链淀粉(AM)、支链淀粉(AP)和纤维素的含量在其他处理间的变化趋势相同。与对照相比,0.5mmol/L与5.0 mmol/L SA处理对山药地下块茎的影响作用相反,前者不仅显著提高了蔗糖合成酶(SuSase)、酸性转化酶(SAInv)、细胞壁结合酸性转化酶(CWBAInv)、中性转化酶(NInv)等酶的活性,而且显著增加腺苷二磷酸焦磷酸化酶(AGPase)、可溶性淀粉合成酶(SSS)、颗粒结合淀粉合成酶(GBSS)、淀粉分支酶(SBE)等酶的活性,1.0 mmol/L仅在块茎发育中期对上述酶有微小的促进作用。所有SA处理中,虽然蔗糖含量与SuSase及淀粉合成相关酶的活性呈不显著正相关,但蔗糖与总可溶性糖含量的比率与这些酶活性及淀粉含量成显著正相关。葡萄糖、果糖含量及它们所占总可溶性糖的比率与上述酶的活性分别呈显著负相关,葡萄糖与果糖的比率与上述酶的活性无显著相关性,蔗糖与葡萄糖、果糖的比率均与AGPase、SSS、GBSS的活性呈显著正相关。【结论】叶面喷施SA在山药地下块茎发育过程中通过作用于蔗糖裂解和淀粉合成相关酶的活性来影响蔗糖的运输和流向,小于1.0 mmol/L的SA通过提高酶活性来促进蔗糖转运入山药地下块茎并转化成淀粉,而其他浓度SA具有相反的作用。

中药山药及其伪品主要化学成分比较分析

目的建立中药山药总多糖、总皂苷、总黄酮和总多酚4类活性成分的含量测定方法,比较中药山药及其伪品中成分含量的差异并实现山药正伪品的分类。方法收集不同产地和来源的28批中药山药和15批伪品,采用紫外-可见分光光度计测定4类成分的含量,并进行多元统计分析。结果山药及其伪品均含有4类活性成分,且总多糖含量最高,占比约为山药重量的20%,在所测定的4类成分中,占比超90%。基于4类成分的含量可实现山药及其伪品各组之间的分类,并且总多酚的含量对分类的贡献最大。山药各主产区之间成分含量相近,无显著品质差异。结论实验方法准确、可靠,中药山药4类活性成分的含量可实现山药及其伪品各组之间的分类,为基于功效物质基础的山药质量控制以及山药种植资源提供科学依据。

厢面倾斜角度对山药产量和畸形率的影响

为探究厢面倾斜角度对山药产量和畸形率的影响,以4种山药品种为试验材料,探索不同倾斜角度条件下山药产量和畸形率变化。结果表明,倾斜角度提升至20°左右时,与对照相比,双胞山药、双棒山药、铁棍山药和紫山药的产量分别提高了74.85%、13.59%、10.08%、42.37%,双胞山药、双棒山药和紫山药畸形率分别降低了30%、35%、100%,其中紫山药的畸形率降为0。因此,厢面倾斜角度的适当提升可有效提高浅生槽栽培山药的产量,并降低薯块畸形率。

日粮中添加发酵怀山药皮对母猪及哺乳期仔猪生产性能的影响

文章旨在研究日粮中添加发酵怀山药皮对母猪繁殖性能及哺乳期仔猪生产性能的影响。试验将99头胎龄一致的经产妊娠母猪随机分为3组,分别为I组(空白对照组)、Ⅱ组(2.5%发酵山药皮组)、Ⅲ组(5%发酵山药皮组),每组33个重复,每个重复1头母猪,试验期为妊娠85d至断奶后10d,共计65d。结果显示:(1)与I组相比,Ⅱ、Ⅲ组母猪产程、断奶发情间隔时间显著缩短(P <0.05),便秘率、平均窝产白胎数显著降低(P <0.05),采食量、断奶后10d内发情率显著提高(P <0.05)。(2)与I组相比,Ⅱ、Ⅲ组窝重、平均个体重、25d断奶重、平均日增重均有所提高,但差异不显著(P> 0.05);Ⅱ、Ⅲ组仔猪腹泻率显著低于I组(P <0.05)。(3)血清抗氧化指标:Ⅲ组仔猪血清相比I、Ⅱ组CAT、SOD、GSH-Px水平显著提高(P <0.05);与I组相比,Ⅱ、Ⅲ组母猪血清CAT、SOD、T-AOC水平均显著提高(P <0.05),血清MDA水平有所降低,但无显著差异(P> 0.05)。(4)Ⅱ、Ⅲ组产气荚膜梭菌数量显著低于I组(P <0.05);Ⅱ、Ⅲ组双歧杆菌、乳酸杆菌数量虽有提高但差异不显著(P> 0.05),沙门氏菌、大肠杆菌数量有所下降,差异不显著(P> 0.05)。结论 :母猪日粮中添加发酵怀山药皮可降低母猪便秘率,提高母猪机体抗氧化能力,减少母猪哺乳阶段体重损失,缩短产程,提升母猪繁殖性能及仔猪哺乳期的生长性能;母猪日粮中发酵怀山药皮以2.5%添加水平为宜。

In vitro modulation of TH1 and TH2 cytokine expression by edible tuber of Dioscorea alata and study of correlation patterns of the cytokine expression

The underground tuber of Dioscorea alata is a palatable food and is also claimed to have therapeutic effects.Various groups of researchers demonstrated different activities of this tuber such as antioxidant,hepatoprotective,anti-ulcer and anti-diabetic activities.Therefore,the aim of the present study was to evaluate the immunomodulatory potentialities of 70%hydro-methanolic extract of D.alata underground tubers by investigating different parameters like the expression of interferon gamma(IFN-),interleukin(IL)-2,IL-4 and IL-10,in addition to its effect on the proliferation of murine splenic T-lymphocytes in vitro.Results demonstrated that D.alata can actively polarize the TH0 lymphocyte population towards the expression of TH1 immune response by up-regulating the IFN-and IL-2 expression and down-regulating the IL-4 and IL-10 expression.The tuber extract also proved to possess mitogenic activity as evidenced by the proliferation of lymphocytes in vitro.©2014 Beijing Academy of Food Sciences.Production and hosting by Elsevier B.V.All rights reserved.

Acetone Extract of <i>Dioscorea alata</i>Inhibits Cell Proliferation in Cancer Cells

Dioscorea spp., White Yam has been shown to exhibit a wide range of nutritional and medicinal properties. However, the compounds associated with its medicinal functions have not been fully examined. The purpose of this study was to generate a chemoinformatic profile of the bioactive compounds present in Dioscorea. alata (D. alata) and to characterize their putative anti-cancer properties using prostate (DU145) and lung (A549) cancer cells. Chemoinformatic profiling of D. alata resulted in five bioactive extracts: hexane (DaJa-1), ether (DaJa-2), acetone (DaJa-3), ethanol (DaJa-4) and water (DaJa-5) were generated. The analytes present in the five bioactive extracts were dissolved in 0.1% DMSO and their anti-cancer activity were determined. We observed that the acetone extract (DaJa3) was the only extract capable of inducing greater than 90% cell death of DU 145 cell at 100 μg/mL. The order of growth inhibition of the extracts in DU-145 cell is DaJa-3 (IC50, 31.45 μg/mL) > DaJa-4 (IC50 60 μg/mL) > DaJa-1 (IC50 > 100 μg/mL) ≥ DaJa-2 (IC50 > 100 μg/mL) ≥ DaJa-5 (IC50 > 100 μg/mL). MTT cell viability, dye exclusion, caspase activity and microscopic assessment of apoptotic cells demonstrated that DaJa-3 displayed cytotoxicity to both lung and prostate cancer cells. The A549 cells were more sensitive toward DaJa-3 with an IC50 value of 22.28 μg/mL (CI 28.42 to 36.63 μg/mL), compared to that of DU145 cells with an IC50 value of 31.45 μg/mL (CI 27.58 to 35.86 μg/mL). It was also observed that DaJa-3 induces differential anti-proliferative activity in the cancer cells. The apoptotic response induced by DaJa-3 paralleled the level of cell cytotoxicity observed in both cell lines. DaJa-3 induces G2 phase cell cycle arrest in DU145 cells but G1 arrest in A549 cells. The level of key apoptotic regulator proteins was upregulated, suggested that DaJa-3 may be mediating its anti-cancer effect through activation of the intrinsic apoptotic pathway. Altogether, our data indicates that DaJa-3 derived from a staple food source (white Yam) contains unique active compounds that have specific biological properties that may prevent certain types of cancer or specific types of cancer.

铁棍山药多糖对产后腰痛运动康复的抗氧化与抗疲劳影响研究

以铁棍山药作为产后腰痛运动康复中重要的糖类营养补充物,通过不同提取方法提取铁棍山药多糖进行体外清除DPPH自由基、·OH能力对比;受试人员定期服用铁棍山药提取溶液,运动后检测受试人员血清丙二醛含量和超氧化物歧化酶活性;监控受试人员运动后次日晨血清睾酮及血清肌酸激酶血液指标,将3组实验结果对比,以进行铁棍山药抗氧化能力与抗疲劳能力科学化评价。结果表明,微波辅助纤维素酶方法在铁棍山药多糖提取当中水平最高为13.83%,微波辅助纤维素酶以及纤维素酶2种方法对于DPPH自由基、·OH具有较强清除能力,但差异不明显。在运动后微波辅助纤维素酶干预组中,血清丙二醛含量降低明显[(3.16±0.59)nmol/mL],超氧化物歧化酶含量升高[(97.35±10.63)nmol/mL]。铁棍山药作为营养补充剂的产后腰痛实验各组,相较于对照组表现出血清睾酮(65.88%)与血清肌酸激酶(55.78%)更快的恢复速度。研究结果可实现铁棍山药多糖的研发与利用,为产后女性运动康复提供营养补充摄入的科学依据。

不同基质配比对维西糯山药零余子繁殖种栽生长和品质的影响

目的:筛选适宜于维西糯山药零余子繁殖种栽的最佳基质配比。方法:以维西糯山药零余子为繁育材料,以草炭、椰糠、松针腐殖质、沙壤土等为配制育苗基质原料,通过大棚育苗试验,研究不同基质配比对维西糯山药零余子繁殖山药种栽生长发育及品质的影响。结果:不同基质配比用于糯山药零余子育苗促进了糯山药种栽的生长,明显提高了零余子出苗率,增加了山药块茎长、块茎上、中、下部直径及鲜、干质量,其中,T4[V(草炭)∶V(椰糠)∶V(松针腐殖质)∶V(沙壤土)=0∶3∶3∶3]处理的山药块茎长、块茎上、中、下部直径及鲜、干质量增加最为显著,分别较CK显著提高了95.78%、34.07%、59.15%、27.87%、41.51%和39.47%(P<0.05);不同基质配比提升了糯山药种栽的品质,T4处理的提升效果最明显,糯山药种栽皂苷、淀粉、灰分较CK分别显著提高16.98%、12.22%、13.52%(P<0.05),粘液蛋白较CK提高3.33%,各处理的含水量差异不显著。结论:综合考虑各基质配比对糯山药零余子繁殖种栽形态特征、产量和相关品质的提升效果,本试验条件下,以T4处理用于糯山药零余子繁殖种栽为最佳。该研究结果可为维西糯山药规模化、标准化生产提供理论支持。