The PcERF5 promotes anthocyanin biosynthesis in red-fleshed pear(Pyrus communis)through both activating and interacting with PcMYB transcription factors

As there is a strong interest in red-skinned pears,the molecular mechanism of anthocyanin regulation in red-skinned pears has been widely investigated;however,little is known about the molecular mechanism of anthocyanin regulation in red-fleshed pears due to limited availability of such germplasm,primarily found in European pears(Pyrus communis).In this study,based on transcriptomic analysis in red-fleshed and white-fleshed pears,we identified an ethylene response factor(ERF)from P.communis,PcERF5,of which expression level in fruit flesh was significantly correlated with anthocyanin content.We then verified the function of PcERF5 in regulating anthocyanin accumulation by genetic transformation in both pear skin and apple calli.PcERF5 regulated anthocyanin biosynthesis by different regulatory pathways.On the one hand,PcERF5 can activate the transcription of flavonoid biosynthetic genes(PcDFR,PcANS and PcUFGT)and two key transcription factors encoding genes PcMYB10 and PcMYB114.On the other hand,PcERF5 interacted with PcMYB10 to form the ERF5-MYB10 protein complex that enhanced the transcriptional activation of PcERF5 on its target genes.Our results suggested that PcERF5 functioned as a transcriptional activator in regulating anthocyanin biosynthesis,which provides new insights into the regulatory mechanism of anthocyanin biosynthesis.This new knowledge will provide guidance for molecular breeding of red-fleshed pear.

Black radish root extract alleviates sodium valproate-induced liver damage via inhibiting mitochondrial membrane potential collapse and oxidative stress in mice

Objective:To explore the effect of black radish(Raphanus sativus L.var niger)root extract on liver enzymes,oxidative stress,and histopathological alterations in mice with sodium valproate-induced hepatotoxicity.Methods:Thirty-two mice were divided into four groups:the control group received drinking water by gavage,the second group was administered with 100 mg/kg of sodium valproate,the third group received 300 mg/kg of black radish root extract,and the fourth group was given both sodium valproate(100 mg/kg)and black radish root extract(300 mg/kg).After 28 days,the mice were euthanized,and serum levels of aspartate aminotransferase(AST),alanine aminotransferase(ALT),and alkaline phosphatase(ALP),along with liver malondialdehyde(MDA),reactive oxygen species(ROS),mitochondrial parameters,tumor necrosis factor-alpha(TNF-α)gene expression,and histopathological changes were assessed.Results:Sodium valproate caused hepatic damage in mice,characterized by elevated serum levels of liver enzymes,increased MDA and ROS levels and TNF-αgene expression,as well as histopathological alterations.The black radish root extract significantly alleviated sodium valproate-caused hepatic injury by decreasing the serum levels of ALT and AST,MDA,ROS,TNF-αgene expression,as well as mitochondrial impairment,but did not have a significant effect on sodium valproate-induced histopathological changes.Conclusions:The black radish root extract demonstrates protective effects against sodium valproate-induced liver injury,possibly through mitigating oxidative stress,mitochondrial impairment,and inflammatory mediator expression.

New Variants of Wild Red-fleshed Kiwifruit in Jiugongshan Region and Their Application Prospect

The collection of wild kiwifruit germplasms has already proved its worth with the development of valuable new kiwifruit cultivars.Through field investigation and consulting the existing literature,this paper illustrates that Jiugongshan region in China is a unique gene bank of excellent wild kiwifruit germplasm resources on the boundary between Hubei and Jiangxi provinces.It is also one of the important birthplaces of breeding materials for new kiwifruit cultivars in China.The paper introduces the main characteristics of two wild red-fleshed kiwifruit germplasms discovered in this region,and one of them is a new large-fruited variant of wild red-fleshed kiwifruit.The main fruit qualities of the large-fruited form are that short fruit stalk,large fruit(the maximum fresh fruit mass of about 81.2 g),moderate sweetness and sourness,reddish to red inner pericarp,the ripe fruit soluble solids content 14.10%,total sugar 8.84%,total acid 1.18%,vitamin C 644.3 mg/kg.It is expected to be cultivated into a new edible cultivar(line)or ornamental and edible cultivar(line)of Actinidia chinensis,which has a broad prospect of development and utilization.

Pathogenic Identification of Leaf Tip Blight of Red-fleshed Kiwifruit in Qiandongnan Prefecture

[Objective]The paper was to investigate and identify new diseases in kiwifruit producing areas in Qiandongnan Prefecture to reduce the harm of diseases and ensure the quality of red-fleshed kiwifruit products.[Method]The pathogenic fungus was isolated from diseased leaves of redfleshed kiwifruit by tissue separation method,and DNA was sequenced by ribosomal rDNA-ITS(internal transcribed spacer)sequencing.Molecular evolutionary trees were built using MEGA4.0 software,and the pathogenic fungus was classified and identified combined with morphological obser-vation.[Result]Leaf tip blight was a new disease caused by Epicoccum sorghinum.It caused serious damage on red-fleshed kiwifruit.[Conclusion]The study supplements diseases of red-fleshed kiwifruit,and provides support for disease prevention and control in late stage.

Identification of Pathogens on Dry Blight Disease in Leaf Tip of Red-fleshed Kiwifruit in Qiandongnan Prefecture

In order to reduce the harm of diseases in red-fleshed kiwifruit in Qiandongnan Prefecture and ensure product quality, a new disease in the producing areas were investigated, and pathogen identification were carried out. The pathogen was isolated from diseased leaves by a tissue separation method. DNA sequencing was performed by the sequence analysis of ribosomal rDNA-ITS(Internal transcribed spacer) region, and a molecular evolutionary tree was constructed by the MEGA 4.0 software. The pathogenic fungus was classified and identified by combining morphological observation finally. The results showed that the dry blight disease in leaf tip was a new disease, which was caused by Epicoccum sorghinum, and it had a serious damage to red-fleshed kiwifruit.

Effects of Huangzhou Radish Powder on the Quality of Silver Carp Surimi Products

[Objectives]This study was conducted to improve the quality of frozen silver carp surimi products.[Methods]Huangzhou radish powder and silver carp surimi were used as raw materials to analyze the effects of different amounts(1%,2%,3%,4%,5%)of Huangzhou radish powder on the water-holding capacity,cooking loss rate,whiteness value,TPA,gel strength and sensory quality of surimi products.[Results]When the addition amount of Huangzhou radish powder was 1%,water-holding capacity,hardness,chewiness and the gel strength of the surimi product reached their maximum values,which were 86.86%,3470.36 g,2628.50 g and 707.48 g·mm,respectively.Meanwhile,the cooking loss rate was reduced to a minimum value(13.66%),and the sensory quality reached the best.The whiteness of surimi products showed a decreasing trend with the increase of the addition amount of Huangzhou radish powder.However,the whiteness of the surimi product was not significantly affected when the addition amount of Huangzhou radish powder was 1%.Therefore,when the addition amount of Huangzhou radish powder was 1%,the quality of surimi products could be improved.[Conclusions]This study provides a new idea for the development and utilization of Huangzhou radish.

基于外形特征的潍县萝卜筛选系统研制与试验

针对目前潍县萝卜表面缺陷筛选主要依靠人工,存在工作强度大、分拣效率低等问题,设计了一种基于外形特征的潍县萝卜筛选系统,并搭建了试验台架。实地采集了潍县萝卜表面缺陷数据照片,构建数据集,通过调节亮度与对比度、旋转、缩放、高斯模糊及添加椒盐噪声等方法对数据集进行了扩充,以防止过拟合;对数据进行标注,分为根部多头、弯曲、损伤和虫眼4种类型;选用模型体积小、检测速度快的YOLOv5s网络对潍县萝卜表面缺陷数据集进行训练,并生成识别模型。结果表明,其识别准确率90.25%、精确率93.77%、召回率90.83%和mAP@0.5为91.21%。模拟实际作业环境,设计并制作了试验样机,采用传送带带动萝卜移动,上位机通过双摄像头对萝卜的表面信息进行采集并进行处理,下位机控制同步带滑台带动推板完成对萝卜的分拣。在输送平台传送带速度分别为0.16、0.30和0.38m/s时进行筛选试验,结果表明,筛选总体准确率分别为97.5%、92.0%和82.5%。该研究可为潍县萝卜筛选装置的研发提供设计参考。

基于硫苷种类和含量分析的高品质水果萝卜种质筛选

通过对根辣味、根甜味、根质地、空心、根光滑度、根疤痕等品质进行感官评价,从78份萝卜种质中筛选出12份品质优良的萝卜种质。随后利用LC-MS对这12份萝卜种质肉质根中硫苷的组分和含量进行鉴定和分析,最后通过主成分分析研究总硫苷与单个硫苷含量之间的相关性。结果表明,通过感官评价筛选的12份萝卜种质包括2份长白萝卜种质,3份圆白萝卜种质,3份长红萝卜种质,4份绿皮萝卜种质。在所试萝卜种质中,共鉴定出12种硫代葡萄糖苷,分别有脂肪族硫苷8种(GRA、GIB、GRH、GRE、GER、GBN、PRO、GAL)和吲哚族硫苷4种(GBR、NGBS、4HGBS、4MGBS)。其中,总硫苷含量最高的种质为F1005(22.947μmol/g),含量最低的是W1063(3.518μmol/g)。在成分上,主要的脂肪族硫苷为GRH,主要的吲哚族硫苷是NGBS。此外,在供试的12种萝卜种质中,脂肪族硫苷占总硫苷含量的95.78%~99.87%,吲哚族硫苷占总硫苷含量的0.16%~4.22%。各种质硫苷含量最高的都是GRH,占总硫苷含量的61.91%~93.54%,总硫苷含量与GRH、GRE含量呈极显著正相关,与NGBS含量呈显著负相关,且单一硫苷之间存在不同程度的相关性。共筛选出萝卜硫素前体硫苷GRA含量高的种质3份,分别为F1060、F1078和W1044,辣味物质主要硫苷GRH含量低的种质3份,分别为W1063、F1030和W1044。该研究结果为培育高品质优良萝卜新品种提供理论依据。

硒对硼毒害下萝卜幼苗生理特性的影响

在明确不同浓度硒和硼对萝卜幼苗生长影响的基础上,进一步探索硒对硼毒害下萝卜幼苗生物量及活性氧代谢的影响,旨在为减轻萝卜幼苗硼毒害提供技术支撑。以‘雪单1号’萝卜为试验材料,采用盆栽试验,设置5个硒浓度(0、2.5、5、7.5、10μmol/L)和5个硼浓度(0、125、250、500、750μmol/L),研究叶面喷施不同浓度的硒和硼对萝卜幼苗生长的影响;在此基础上,选取2个硼处理(250、500μmol/L),通过叶面喷施清水和适量硒(5μmol/L),研究适量硒对硼毒害下萝卜幼苗生理特性的影响。结果表明,萝卜幼苗鲜重随叶面喷施硒和硼浓度的增加呈现先增加后降低的趋势,萝卜幼苗适宜的硒喷施浓度为5μmol/L、叶面喷施硼浓度为500μmol/L时,萝卜幼苗出现中毒症状;与正常施硼(250μmol/L)相比,硼毒害(500μmol/L)显著降低了萝卜幼苗干物质重,增加了硼含量和硼累积量,降低萝卜幼苗过氧化氢酶(CAT)、过氧化物酶(POD)、抗坏血酸过氧化物酶(APX)和谷胱甘肽(GSH)的含量,增加过氧化氢(H_(2)O_(2))和丙二醛(MDA)含量。叶面喷施适量硒(5μmol/L),与无硒处理相比,硼毒害处理萝卜幼苗硼含量、硼累积量分别降低40.06%、37.36%,幼苗POD、CAT、APX抗氧化酶活性分别增加14.82%、17.45%、18.05%,非酶抗氧化物GSH、抗坏血酸(ASA)含量分别增加13.89%、5.88%,H_(2)O_(2)、MDA含量分别降低28.43%、20.45%。适量硒可以提高萝卜幼苗抗氧化作用,降低活性氧累积,减轻过量硼对萝卜幼苗产生的毒害,扩大植株对硼的适应范围。

塑料大棚萝卜-番茄-黄瓜一年三茬高效栽培技术规程

渭河流域河谷川道地区利用塑料大棚进行春番茄-秋黄瓜并套种萝卜的种植模式,实现了一年三茬高效栽培,这种模式在天水市武山县城关镇、洛门镇等地形成了一定规模。为促进武山县塑料大棚蔬菜产业健康可持续发展,根据国家及行业标准,结合多年试验示范和生产实践,从适用范围、规范性引用文件、产地环境、品种选择、茬口安排、栽培技术要点等方面总结制定了塑料大棚萝卜-番茄-黄瓜一年三茬栽培技术规程。本规程的制定将为武山塑料大棚多熟制蔬菜的发展提供有力的技术支撑,进而促进渭河流域塑料大棚蔬菜产业的高质量绿色标准化生产。

湖北省萝卜生产、科研现状及发展方向

萝卜是我国重要的蔬菜作物之一,而湖北省是种植面积最大的省份。萝卜产业的发展对广大农村地区实现脱贫致富、乡村振兴起到了重要的作用。对湖北省萝卜的生产种植、相关科研单位的研究现状等方面进行了回顾,并对萝卜未来发展方向进行了展望。

基于响应面的白萝卜热风干燥品质及工艺研究

目的探究不同工艺条件下白萝卜热风干燥品质和效率的变化。方法采用单因素试验方法,研究了干燥温度、相对湿度、物料厚度对白萝卜的品质、干燥特性的影响规律;以复水比、色泽、干燥时间为评价指标,对数据进行归一化处理,然后构建综合评分模型;采用Box-Behnken响应面法进行优化试验,将综合评分作为响应值建立回归模型,得到干燥品质最佳、干燥用时最短的工艺参数组合。结果在干燥温度55℃、相对湿度23%、物料厚度10 mm的条件下,白萝卜的干燥时间为490 min,复水比为3.851,色差为25.724,综合评分为0.953,干燥效果最佳,说明采用该干燥工艺参数能够有效提高干燥品质,缩短干燥时间;拟合模型的R^(2)为0.9571,实际值与模型理论值之间的误差仅为1.4%,表明模型稳定可靠,适用于白萝卜热风干燥。结论基于响应面优化获得的最优工艺参数及回归模型,能更好地预测白萝卜在不同工艺条件下的干燥特性变化,有效提升了干燥效果,为白萝卜热风干燥工业化应用和高品质储存提供了理论基础。

外源褪黑素对盐胁迫下萝卜幼苗生长的影响

土壤盐渍化严重制约萝卜高效生产,褪黑素(melatonin,MT)作为天然抗氧化剂,在响应植物非生物胁迫中发挥重要作用。以满堂红萝卜为试验材料,分别采用浓度为0、50、100、150、200μmol·L^(-1)的MT进行喷施处理,筛选对萝卜生长最佳的MT浓度;采用基质盆栽,以200 mmol·L^(-1)Na Cl浇灌作为盐胁迫环境,以0μmol·L^(-1)MT(T1)和筛选出的最佳MT浓度(T2,150μmol·L^(-1))溶液喷施萝卜幼苗为处理组,非盐胁迫与未喷施MT作对照(CK)。结果表明,与CK相比,盐胁迫显著降低萝卜幼苗株高(定植后29 d除外)、茎粗、株幅、叶长、叶宽(定植后29 d除外)等指标,喷施150μmol·L^(-1)MT可提高定植25 d后的萝卜幼苗株高、茎粗、株幅、叶长、叶宽和叶绿素含量,增强SOD和CAT活性,降低MDA含量;其中定植后29 d,喷施150μmol·L^(-1)MT和0μmol·L^(-1)MT相比,株高、茎粗、叶长、叶宽和叶绿素含量分别提高了26.79%、28.16%、16.81%、29.11%、7.72%,SOD和CAT活性分别显著提高了32.12%和40.76%,MDA含量显著降低了38.92%,表明喷施150μmol·L^(-1)外源MT可有效缓解盐胁迫对萝卜幼苗的伤害,有效促进萝卜幼苗生长。

种植环境及密度对水果青萝卜生长、产量和品质的影响

为探究水果萝卜适宜的种植环境和密度,以水果青萝卜为供试对象,在推荐最大种植密度下分别采用厚土墙日光温室(R_(1))、拱棚(G_(1))、大田(L_(1))3个种植环境,在大田种植条件下设置111110棵/hm^(2)(L_(1))、55555棵/hm^(2)(L_(2))、27777棵/hm^(2)(L_(3))3个种植密度处理,调查水果青萝卜的生长情况、产量和品质。结果表明,不同种植环境下,与L_(1)相比,R_(1)和G_(1)处理的叶面积、叶鲜干质量、根鲜干质量、产量和可溶性糖含量增加,可溶性固形物、维生素C含量减少,且G_(1)处理的根鲜干质量、产量和可溶性糖含量最高,分别为924 g、28.8 g、102.67 t/hm^(2)、3.34%,与L_(1)相比分别增加了52.98%、43.95%、52.99%、16.38%。在大田种植条件下,随着种植密度的增加,叶面积、叶鲜干质量、产量和可溶性糖含量先升高后降低,维生素C呈降低趋势,可溶性固形物含量先降低后升高,其中L2处理的产量与可溶性糖含量最高,分别为93.55 t/hm^(2)、3.64%,较L_(1)和L_(3)处理产量分别升高了39.4%、99.04%,可溶性糖含量升高了26.83%、7.06%。综上,水果青萝卜在拱棚种植下生长最佳,适宜大田的种植密度为55555棵/hm^(2)。

萝卜SNP和InDel分子标记开发及与表型性状关联分析

为了挖掘与萝卜表型性状显著相关的分子标记,对60份萝卜的14个表型数据进行鉴定,筛选出具有多态性的分子标记29个(其中12个SNP标记和17个InDel标记)进行遗传多样性分析,并利用TASSEL5.0软件的广义线性模型(general linear mode, GLM)对萝卜的14个表型数据进行关联分析。研究结果表明,29个分子标记的等位基因(Na)数范围在2~3个,平均为2.14个;主等位基因频率(MAF)为0.53~0.94个,平均为0.68个;每个标记的期望杂合度(He)范围为0.12~0.93,平均为0.63。每个位点的多态性信息含量(PIC)值范围在0.11~0.37,平均为0.32;在12个表型性状中关联到17个显著相关的分子标记位点(其中7个SNP标记和10个InDel标记)(P≤0.01),贡献率在7.24%~23.25%。

土壤理化性质与卫青萝卜品质相关性研究

为了揭示各项土壤理化因子对“卫青”萝卜品质的影响,分析了天津市武清和西青产区的土壤理化因子差异及其与萝卜品质的相关性。结果表明,西青和武清产区土壤质地分别为重壤土、轻壤土。西青产区土壤全磷、有机质以及镁、钙、砷、镉、钴、铬、铜、锰、钼、镍、铅、锌元素含量均显著高于武清产区,而土壤全钾、速效钾、速效氮、有效磷含量显著低于武清产区。相关性分析发现萝卜蛋白质、可溶性糖、可溶性固形物、维生素C、粗纤维和水分含量与多个土壤理化因子呈不同程度正相关,其中可溶性糖含量与土壤有效磷和速效钾含量呈显著正相关,可溶性固形物、蛋白质含量与土壤电导率呈显著正相关。因此,在萝卜生产过程中,可结合土壤的理化特性,针对性地进行田间管理和常规施肥,以改善和提升萝卜品质。

卫青萝卜黑腐病病原鉴定及防治药剂的筛选

近年来,天津地区青萝卜产区出现萝卜病害新症状,当地农民称之为“黑梗病”,其发病早、蔓延快,已成为天津地区青萝卜生产上棘手难防的病害之一。为准确地鉴定诱发萝卜“黑梗病”的致病菌,明确病害种类,筛选出高效、低毒的防控药剂,调查了卫青萝卜“黑梗病”田间发生情况,通过形态学、致病性测定及分子生物学鉴定相结合的方法鉴定了“黑梗病”的致病菌属性;针对靶标病原菌,采用药剂抑菌圈法对19种药剂进行了室内毒力测定及田间药效试验。结果表明,引起当地卫青萝卜“黑梗病”的致病菌为野油菜黄单胞杆菌野油菜致病变种Xanthomonas campestris pv.campestris(Pam.)Dowson,是萝卜黑腐病的新症状表现;并且发现病原菌存在致病力分化,筛选到强致病力菌株LB-B。采用强致病力菌株LB-B,通过室内毒力测定及田间药效试验,明确了参试杀菌剂对病菌的毒力系数,其中有10种药剂对萝卜黑腐病存在不同程度的抑制作用,以0.3%四霉素水剂和10%丙硫唑悬浮剂的综合表现最好,高质量浓度1000 mg·L^(-1)对致病菌的抑菌率达89.52%以上,EC50分别为174.04 mg·L^(-1)和156.69 mg·L^(-1),田间防治效果稳定、持效期长,为萝卜黑腐病的有效防治提供了候选药剂。

4BL-1型白萝卜联合收获机缨叶聚拢装置优化与试验

为解决白萝卜机收过程中因缨叶聚拢不全导致损失率与损伤率高、切头合格率低等问题,该研究依据白萝卜缨叶物理力学特性,设计了一种白萝卜缨叶聚拢装置,以实现白萝卜缨叶从田间自然“半散开”状态聚拢成束,利于后续拔取作业。构建白萝卜缨叶聚拢装置运动学模型,确定“拢缨速比”的取值范围;构建装置结构参数和前进速度、拢缨速比及作业姿态等运动参数及拢叶机构倾角对缨叶聚拢性能影响的数学模型,并求解出各因素优选区间。以缨叶聚拢成功率、缨叶破损率为评价指标,开展三因素三水平正交组合试验,依据响应面法分析各因素对二者的影响效应,并对模型进行优化。试验结果表明:缨叶聚拢成功率影响显著性顺序为前进速度、拢缨速比、拢叶机构倾角;缨叶破损率影响显著性顺序为拢缨速比、拢叶机构倾角、前进速度;最优参数组合为:前进速度0.4 m/s、拢缨速比3.9、拢叶机构倾角86.3°。在最优参数组合下开展台架试验验证,结果表明:缨叶聚拢成功率、缨叶破损率分别为92.04%、8.81%,满足拔取式白萝卜联合收获机缨叶聚拢需求。研究结果可为白萝卜收获机械的设计提供参考。

不同萝卜品种种子萌发期抗旱性综合评价及抗旱指标筛选

【目的】综合评价30个萝卜品种种子萌发期抗旱性及筛选抗旱性鉴定指标,以筛选出适宜在宁夏半干旱地区种植的萝卜品种。【方法】以30个萝卜品种为试验材料,设置蒸馏水(对照)和15%PEG-6000溶液模拟干旱胁迫2个处理,测定不同处理下各萝卜品种种子萌发期的发芽率、发芽势、发芽指数、活力指数等9个发芽指标,并通过相关性分析、主成分分析、隶属函数法、灰色关联度和聚类分析等相结合的方法,对供试萝卜品种进行萌发期抗旱性综合评价及抗旱指标筛选。【结果】与对照相比,干旱胁迫下供试萝卜品种各测定指标均受到不同程度的影响;大多数测试指标抗旱系数间存在显著或极显著相关性;基于主成分分析法将9个单项指标抗旱系数转化为2个主成分,其累计方差贡献率为78.18%。根据抗旱性度量值(D)、综合抗旱系数(CDC)值和加权抗旱系数(WDC)值大小对各品种抗旱性的排序结果相近。聚类分析在欧氏距离为10处可将30个萝卜品种分为4类,其中抗旱型品种3个、中度抗旱型品种8个、干旱敏感型品种14个和干旱极敏感型品种5个。灰色关联分析与逐步回归分析结果表明,相对活力指数、相对发芽率、相对根鲜质量、相对芽长、相对根长、相对芽鲜质量、相对发芽势、相对萌发指数和相对根冠比均可作为萝卜种子萌发期抗旱性鉴定指标。【结论】种子萌发期抗旱型萝卜品种为绿翡翠2号、超级满堂红和盛萃一号,该研究结果为萝卜种子萌发期抗旱性高效评价与抗旱品种选育及其推广应用提供参考。

凹凸棒石盐碱阻隔材料不同铺设量对景电灌区萝卜生长及产量和品质的影响

为有效解决景电灌区土壤盐碱化和次生盐碱化问题,采用盐碱地原位工程化根治技术,在景电灌区大田条件下,以萝卜为试材,不铺设凹凸棒石盐碱阻隔材料为对照(CK),研究凹凸棒石盐碱阻隔材料不同铺设量(3.5、3.0、2.5、2.0、1.5、1.0 t·667 m^(-2))对萝卜植株生长及产量和品质的影响。结果表明,在不同凹凸棒石盐碱阻隔材料铺设量处理下,3.0 t·667 m^(-2)处理的土壤pH和全盐含量最低,脱盐率最高,达到了38.80%,萝卜的出苗率也最高,为95.24%,各生育期萝卜的叶长、叶宽和叶片SPAD值均高于其他处理,叶片净光合速率、气孔导度和蒸腾速率及植株地上部和地下部鲜质量、干质量均高于其他处理,且显著高于对照。在各处理中,3.0 t·667 m^(-2)处理萝卜可溶性固性物含量和产量均最高,分别为1.23%和3306.42 kg·667 m^(-2),且均显著高于对照。综上,景电灌区盐碱地上铺设3.0 t·667 m^(-2)凹凸棒石盐碱阻隔材料,可实现萝卜优质高产的目标。