Nutritional and Antioxidant Evaluation and Effect of Eggplant Consumption on Anthropometric and Hematologic Parameters in Wistar Rats

The aim of the present study was to evaluate the nutritional quality of green and purple eggplant, their antioxidant activity and their nutritional efficacy on Wistar rats. For nutritional quality, the parameters measured are dry matter, protein, lipid, ash, carbohydrate, iron, phosphorus, calcium, magnesium and energy content. For antioxidant activity, the parameters measured are 50% DDPH free radical inhibition concentration and total polyphenol content. Nutritional efficacy was evaluated in rats fed the control diet and in rats fed the three treated diets containing eggplant meal obtained by replacing 5%, 10%, and 15% of the control diet. The parameters measured are the amount consumed, the weight of the animal and target organs, and hematologic parameters. The results of the nutritional analysis show the following values: 13.31% protein, 2.66% lipids, 0.84% calcium, 0.12% magnesium, 0.43% phosphorus for the Solanum aethiopicum L. species and 13.47% protein, 3.66% lipids, 0.36% calcium, 0.22% magnesium, 0.35% phosphorus for the Solanum melongena L. species. In terms of antioxidant activity, we obtained DDPH inhibition percentages of 40.28 mg/ml for Solanum aethiopicum L. and 12.42 mg/ml for Solanum melongena L., respectively. Finally, hematologic and anthropometric tests showed that for the different diets used, weight loss and an increase in hematologic parameters were observed in the rats tested. This study showed that eggplant has interesting nutritional characteristics and antioxidant activity, contributing to an increase in weight and anthropometric parameters.

Effects of fresh-cut and storage on glucosinolates profile using broccoli as a case study

Glucosinolates(GLS) contribute to the unique flavour, nutrition, and plant defence of the Cruciferous vegetables. Understanding the GLS changes through postharvest processing is essential for defined preservation. In this study, four different fresh-cut types, whole flower(W),floret(F), quarterly cut floret(QF) and shredded floret(FS) of broccoli, were stored for 0, 1, 2 and 3 day(s) to explore GLS responses to postharvest treatments. As a result, seven GLS were identified, mainly including glucoraphanin(RAA), neoglucobrassicin(NEO), and glucobrassicin(GBC)and accounting for 52.69%, 20.12% and 14.99% of the total GLS(21.92 ± 0.48) μmol · g ^(-1 )DW, respectively. FS had the sharpest decrease in GLS after three days of storage(6.55 ± 0.37) μmol · g-1DW, while QF had the least(10.16 ± 0.33) μmol · g ^(-1 )DW. All GLS components decreased over storage, except for 4-methoxyglucobrassicin(4 ME) in FS and QF, suggesting its key role in serious wound defence. The results suggested certain postharvest approaches influenced the flavour and nutrition of broccoli.

Exogenous melatonin improves the chilling tolerance and preharvest fruit shelf life in eggplant by affecting ROS-and senescence-related processes

Low temperature is the most common abiotic stress factors during the eggplant cultivation in solar greenhouses.Melatonin plays important roles in plant resistance to low temperature.However,the role of melatonin in regulating chilling tolerance and extending the preharvest shelf life of eggplant fruits is still unknown.In this study,we investigated the effects of exogenous melatonin on eggplant plants and fruits in response to low temperature.Under simulated low-temperature conditions,exogenous melatonin significantly relieved the chilling symptoms of seedlings by reducing reactive oxygen species (ROS) and malondialdehyde (MDA) levels and relative leakage rates.These reductions were caused by higher superoxide dismutase (SOD) and catalase (CAT) activities and increased endogenous polyamine and melatonin levels compared with those in untreated seedlings.Notably,the expression levels of SOD,CAT1/2,and polyamine synthesis genes (ADC and ODC) were also increased by 100μmol·L~(-1)melatonin,as well as those of genes involved in melatonin synthesis (TDC,T5H,SNAT,ASMT,and COMT) and cold regulation (COR1,CBFa/b,and ZAT2/6/12).To further investigate the effects of melatonin on eggplant leaves and fruits under natural low temperature conditions,100μmol·L~(-1)melatonin was sprayed on the functional leaves at three days before commodity maturation.Melatonin significantly alleviated chilling injury in the leaves and pericarp and extended the preharvest shelf life of the fruit by increasing the expression of COR1,CBF,ZAT2/6/12,and API5 and decreasing the expression of senescence-related genes (NCED1/2 and SAG12).Therefore,100μmol·L~(-1)melatonin improved chilling tolerance and fruit shelf life by upregulating ZAT2/6/12 to affect ROS-and senescence-related processes,which provides a reference for alleviating cold stress and extending the preharvest fruit shelf life in eggplant.

Water Stress Early Detection of Eggplant Plants by Hyperspectral Fluorescence Spectroscopy

Water stress early detection is essential for precision farming to improve crop productivity and product quality. The methods usually used are destructive, long and expensive. In this work, we used hyperspectral chlorophyll fluorescence technology as a rapid, non-destructive approach to detect the water deficiency of eggplant plants using their spectral footprint. So, an experiment was made on 54 eggplant plants subjected to three water treatments: normal irrigation (T100), intermediate irrigation (T50) and no irrigation (T0). The fluorescence spectra were acquired in vivo and in situ using a USB4000 spectrometer from Ocean optics. For the classification of the plants subjected to three water treatments, we used three pretreatments of the raw hyperspectral data in order to suppress the non-informative variability present in these spectra and to obtain robust models. These are the Savitzky-Golay smoothing (SG), the standard normal variable (SNV) and the first derivative of Savitzky-Golay (SG-D1). The preprocessed data were then subjected to two partial least squares discriminant analyses (PLS-DA): Hard PLS-DA and Soft PLS-DA. These statistical approaches are suitable for large samples as it reduces the dimensionality of the data but improves the accuracy of the prediction. The SG-D1 combined with the Soft PLS-DA gave the best discrimination of plants with scores of sensitivity, specificity and total efficiency respectively of 97.33%, 94% and 95% for calibration, 6 days after hydric stress induction. For the plants used for the prediction, the scores are 86%, 91% and 90% respectively. This study shows that hyperspectral chlorophyll fluorescence spectroscopy is a fast and non-destructive technology allowing early detection of water stress in eggplant plants.

Transcriptome Analysis of a Wild Eggplant Germplasm M239 in Response to Verticillium dahliae Infection

In this study,wild eggplant germplasm No.M239,which is highly susceptible to Verticillium wilt,was used as the experimental material.The physiological and biochemical indices(SOD,PAL,MDA and soluble protein)of M239 roots were measured at different times(0,12,24,36,48,60 and 72 h)post inoculation with Verticillium dahliae,and the key time points for the M239 response to Verticillium wilt infection were screened.Then,RNA-Seq technology was used to screen the differentially expressed genes(DEGs)in M239 roots at 0,12 and 48 h post-inoculation(hpi).The transcriptional results of M239 were also compared with those resistance genes from some reported wild relative Solanum species(S.sisymbriifolium and S.aculeatissimum).Then some DEGs were chosen for validation by qRT–PCR.The results showed that 12 and 48 hpi were the turning points in the changes in all physiological and biochemical indices.A total of 6,783 DEGs were identified by RNA-Seq,including 6,141 DEGs(3,046 upregulated and 3,095 downregulated)at the M_12 h vs.M_0 h,1,903 DEGs(792 upregulated and 1,111 downregulated)at M_48 h vs.M_12 h,and 1,261 DEGs that appeared simultaneously in both stages.KEGG enrichment analysis showed that there were 5 metabolic pathways enriched from DEGs,which were mostly related to primary metabolism,such as glycolysis,amino acid and ribosome biogenesis.Compared with the NCBI non-redundant protein(NR)database,one Ve2 homologous gene and 8 PR protein-related genes were screened.Transcription factor analysis showed that there were a large number of DEGs,such as MYB,AP2-EREBP,bHLH,NAC and Orphans in the two stages.Compared with the reported Verticillium wilt-resistant wild eggplant species,it was found that there were fewer genes and enriched metabolic pathways in the M239 response to Verticillium wilt infection,and it also lacked the response of some known key resistance genes.These results proved that the above resistance genes and metabolic pathways played a key role in the wild eggplant response to V.dahliae infection.

Effect of Magnetic Field Technology on Preservation Quality of Fresh-cut Apple

[Objectives]The paper was to study the effect of magnetic field technology on physicochemical properties of fresh-cut apple during storage.[Methods]Using fresh-cut apples as materials,magnetic field assisted refrigeration and conventional refrigeration control groups were set up,and the preservation effects of magnetic field assisted refrigeration on fresh-cut apples were tested by measuring the changes of microorganisms and physicochemical indicators.In this experiment,the conditions of magnetic field assisted refrigeration group was set as follows:temperature 4℃,magnetic field intensity 5 mT,static magnetic field,and storage for 6 d.[Results]At 6 d post storage,the weight loss rate,total number of colonies and total number of fungi of fresh-cut apples increased;the L value and hardness showed a downward trend;the soluble solid content first increased and then decreased;and the total acid decreased first and then increased.The above indicators in magnetic field assisted refrigeration group changed more gently than that in conventional refrigeration group.Compared with conventional assisted refrigeration,the weight loss rate of fresh-cut apples treated by magnetic field combined with 4℃refrigeration was reduced by 68.00%;the hardness was increased by 12.23%;the total number of colonies and total number of fungi were reduced by 64.15%and 37.50%;and the L value did not change much.High content of soluble solids and total acid was maintained.[Conclusions]Magnetic field assisted refrigeration delays quality deterioration of fresh-cut apples during storage,prolongs shelf life,and further improves their edible quality and commodity value.

化肥减施条件下木霉生物有机肥对茄子生长和品质的影响

以茄子为供试材料,设置4个处理:不施用任何肥料(CK)、常规施肥(T1)、较常规施肥减施30%化肥(T2)和较常规施肥减施30%化肥+木霉生物有机肥(T3),研究了木霉生物有机肥对茄子生长、产量和品质的影响。结果表明:T3处理的株高和茎粗高于T2处理,其中株高差异达到显著水平;产量方面,T1≈T3>T2>CK,T1、T2和T3处理的产量较CK处理分别增加23.90%、14.27%、20.19%,T3处理的产量较T2处理增加5.18%;T3处理的可溶性蛋白含量显著高于其他各个处理,且与T2处理相比,VC含量显著提高;经济效益方面,与T2处理相比,T3处理每公顷收益增加8769.60元。主成分分析结果显示,不同处理下茄子的综合生长及品质排序为:T3>T1>T2>CK,木霉生物有机肥替代30%化肥处理综合评价最高。聚类分析将4个处理分成3类,T1处理和T3处理归为一类,T1处理生长指标好,有最高的株高、茎粗和产量,T3处理品质指标优异,可溶性糖、可溶性蛋白和VC含量最高,两者综合评价得分相近。综上,木霉生物有机肥替代30%化肥不仅能够有效提高茄子的株高、茎粗,而且还能显著提高茄子的可溶性蛋白和VC含量,有效改善茄子的品质,同时对于增加茄子产量和经济效益也效果明显。

不同类型茄子果实主要营养成分和氨基酸含量分析

为了解茄子果实营养品质特性,对3种类型、15个茄子DH系的果实糖度、有机酸含量、可溶性糖含量、糖酸比、可溶性固形物含量、固酸比、游离氨基酸含量进行测定分析。结果表明,3种不同类型茄子的糖度和固酸比由高到低均为紫萼紫黑圆茄>紫萼紫黑长茄>绿萼紫黑长茄;有机酸含量为绿萼紫黑长茄>紫萼紫黑长茄>紫萼紫黑圆茄;葡萄糖、蔗糖含量均以绿萼紫黑长茄最高,果糖含量以紫萼紫黑圆茄最高;可溶性固形物含量以紫萼紫黑长茄最高;味感为鲜味、甜味的天冬氨酸、丝氨酸、甘氨酸含量由高到低均为紫萼紫黑圆茄>紫萼紫黑长茄>绿萼紫黑长茄,味感为酸甜味、苦味的天冬酰胺、精氨酸含量由高到低均为紫萼紫黑长茄>绿萼紫黑长茄>紫萼紫黑圆茄;紫萼紫黑长茄和绿萼紫黑长茄主要营养成分和游离氨基酸含量的变异度普遍高于紫萼紫黑圆茄。

基于农业废弃物的日光温室茄子栽培基质配方筛选研究

通过对河西地区玉米秸秆、牛粪堆肥处理复配成基质,筛选适合当地日光温室茄子种植的最佳栽培基质配方,为农业废弃物循环利用提供科学依据。以“长茄1号”为指示品种,采用盆栽试验研究了不同配方基质下栽培茄子的生长和产量效益。结果表明,腐熟玉米秸秆、河沙、蛭石、腐熟牛粪、凹凸棒石粉、珍珠岩按体积比6∶1∶1∶1∶0.5∶0.5复配成栽培基质配方,茄子产量最高,为1.29 kg/株,净收益表现良好,为1.39元/株,茄子株高、茎粗、叶绿素含量、生物量、单株结果数等性状均为最优。该配方适宜在河西地区日光温室茄子基质栽培中应用推广。

茄子与平菇、甘蓝、甘薯间作对其长势、产量及根际环境的影响

为避免因茄子连年种植导致的土传病害增加而对茄子生产造成影响,形成健康、生态的解决办法,以茄子不间作为对照,研究分析了茄子与平菇、甘蓝、甘薯3种作物分别间作后对其长势、产量及根际环境的影响。结果表明:与对照相比,茄子与3种作物间作对茄子株高日均生长量、茎粗、单株坐果数、单果质量、667 m^(2)平均产量以及根际土壤干质量、含水量、EC值、碳氮比、有机碳含量、无机碳含量、有机质含量、速效磷含量均未造成显著影响;茄子与甘蓝间作较与平菇、甘薯间作可显著降低土壤干质量和速效钾含量,且较对照分别降低了8.58%和11.11%,这有利于土壤孔隙度的增加,同时较对照极显著提高了茄子根际细菌总量,显著提高了根际真菌总量及根际细菌与真菌总量比值,分别较对照提高114.44%、42.18%和49.56%,这有助于茄子连作障碍的消减及土传病害的防治;茄子与平菇间作极显著降低了根际土壤的pH值,较对照降低5.36%,极显著降低了土壤全碳含量和全氮含量,分别降低16.99%和17.10%,但显著提高了土壤速效氮含量,增幅达36.10%,极显著提高了根际细菌总量和真菌总量,分别提高71.84%和156.98%;茄子与甘薯间作,极显著降低了根际土壤的pH值,降幅达7.39%,但显著提高了土壤速效钾含量和根际真菌总量,极显著增加了根际细菌总量,增幅分别达27.76%、56.98%和99.67%。综合上述分析认为,茄子与甘蓝间作有利于改善土壤团粒结构,丰富、稳定土壤生态系统,有助于作物植株健康生长,但间作时需要及时补充钾肥;而茄子与平菇、甘薯间作会降低土壤pH值,提高土壤肥力,可用于盐碱土或“生”土的改良。

盐胁迫对春茄6号茄子幼苗叶面积及生理生化指标的影响

茄子是世界四大蔬菜作物之一,其周年供应主要依靠设施化栽培技术。然而,设施栽培因常年大量施用化肥和不合理灌溉等因素导致土壤次生盐碱化,这将严重影响蔬菜的生长发育和设施农业的可持续发展。因此,本试验以春茄6号幼苗为试验材料,研究0、50、100、150 mmol/L这4个浓度NaCl盐胁迫对春茄6号叶面积和抗氧化酶含量的影响,并分别在第0天、第3天、第6天和第9天记录叶面积,同时测定了丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和过氧化物酶(POD)的含量。结果表明:随着盐胁迫浓度逐渐上升,春茄6号幼苗叶面积增长逐渐缓慢,在150 mol/L浓度NaCl处理下春茄6号幼苗叶面积生长量最低;NaCl盐胁迫对春茄6号幼苗叶片的叶面积及MDA、SOD、POD和CAT含量均会产生抑制。不同NaCl浓度对春茄6号幼苗的抑制效果表现为150 mmol/L>100 mmol/L>50 mmol/L>0 mmol/L。

鲜切茄子褐变研究进展

鲜切茄子作为一种新型食品工业产品而深受消费者喜爱,但茄子切片处理很快就会褐变,这会对其口感、营养和商业价值产生负面影响。酶促褐变是茄子果实在收获、运输、储存和加工过程中褐变发生的主要形式,这一过程主要是由多酚氧化酶引起的。综述了鲜切茄子褐变的影响因素、褐变分子机制以及褐变控制措施,以期为解决茄子果实褐变研究提供参考。

茄子新品种绿优优400的选育

绿优优400是以自交系L11-2014为母本、自交系L8-2014为父本杂交选育而成的早熟绿茄杂交1代新品种。该品种早熟不早衰,连续坐果能力强,抗逆性强;7片叶左右着生门茄。果皮亮绿不发白,果面光滑饱满,果实长卵圆形,横径11.3 cm、纵径21.4 cm,果肉浅绿色,肉质软糯,单果质量500 g左右。早春保护地种植,667 m^(2)产量可达10000 kg。田间抗青枯病、根腐病、黄萎病等土传病害,适宜江苏、河南等绿茄主产区保护地早春茬和露地种植。2023年9月获得国家植物新品种权证书。

不同雪茄烟品系农艺性状与干物质积累研究

为筛选适宜山东烟区栽培的雪茄烟品系,探究雪茄烟在山东烟区的生长发育特征及质量特性,以5个国内优质雪茄烟品系(QX100、QX102、QX103、QX105、QX107)为试验材料,通过不同地点田间试验,按照YC/T142‒2010《烟草农艺性状调查方法》,使用连续流动分析仪和火焰光度计等方法,研究不同雪茄烟品系的田间性状、养分吸收积累和质量性状的表现差异。结果表明:生育期方面,临朐点雪茄各品系的生育期差异较小,沂水点QX102和QX105差别较大,QX102现蕾和中心花开放时间较长,QX105历经时间较短;其他品系无明显差异,两地点的植物学性状表现一致。农艺性状方面,临朐点QX100株高最高,叶片宽且薄,支脉少且细;QX102叶片数最多但叶片较小且支脉数最多;QX103株高较矮,叶长较长,叶片较厚;QX105叶宽最小,支脉较细;QX107叶片较大,支脉最粗。沂水试验点,QX100株高最高,节距、叶长和叶宽最大,除叶长外与其他品系具有显著差异,其茎围、茎叶夹角较小,支脉最细;QX102株高较矮,叶片数多,节距小;QX103叶片厚,支脉粗;QX105株高较矮,叶片较小;QX107叶片较大,叶片薄。干物质及养分积累方面,QX103叶片和总干物质积累量均最高,QX100叶片磷钾含量较高,但养分积累能力弱于QX103;QX103的氮磷钾累积量均最高,QX105的磷累积量最低,QX107的钾累积量最低。QX100晾制后烟叶呈棕色,单叶重最大,QX107原烟厚度最厚,单叶重较重。综合田间表现和物质养分积累以及质量表现来看,QX100和QX103表现相对较好,更适合茄衣烟叶生产,可作为山东烟区的主栽茄衣品系。

大理野茄M239响应黄萎病病菌侵染的差异表达蛋白分析

为了探索植物响应黄萎病病原菌侵染的作用机制,以黄萎病高感野茄材料大理野茄(M239)为研究对象,通过人工接种黄萎病病原菌大丽轮枝菌的方法,首先测定M239在接种大丽轮枝菌后0,6,12,24,48 h的根部4个关键生理指标,即过氧化物酶(POD)、过氧化氢酶(CAT)、苯丙氨酸解氨酶(PAL)的活性和可溶性蛋白(SP)含量的变化。结果确定接种大丽轮枝菌后12,24 h为蛋白组分析取样的关键时间点;在此基础上,利用iTRAQ技术分析M239在接种大丽轮枝菌后根部蛋白的变化。结果发现,与清水接种(CK)相比,M239接种大丽轮枝菌后12 h有463个差异表达蛋白(DEPs),其中305个下调,158个上调;接种后24 h,有456个DEPs被病原菌诱导表达,包括296个下调,160个上调。这些蛋白主要富集在碳代谢、乙醛酸和二羧酸代谢、次生代谢物的生物合成、丙酮酸代谢、新陈代谢等途径。通过与已报道的黄萎病抗性材料的研究结果进行对比分析发现,M239在响应大丽轮枝菌的侵染过程中,参与防御响应的蛋白数量和代谢通路较少,未能形成有效的防御网络,最终表现为感病。

不同磷肥对镉胁迫下茄子苗期光合作用及抗氧化酶系统的影响

探究在石灰性土壤中施加不同磷肥对镉胁迫下茄子苗期光合作用及抗氧化酶系统的影响,为选出合理有效的磷肥、缓解镉毒害作用提供依据。采用盆栽试验,使用黄土状石灰性褐土种植茄子,通过双因素分析法研究了4种磷肥[磷酸一铵(MAP)、过磷酸钙(SSP)、磷酸二铵(DAP)、磷酸氢钙(DCP)]和4个施磷水平[0、0.15、0.25、0.35 g·kg^(-1)(以每千克土中P含量计),分别用P0、P1、P2、P3表示]在土壤镉(5 mg·kg^(-1)Cd)环境下,对茄子苗期叶片中叶绿素、光合作用、丙二醛(MDA)、超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)、抗坏血酸过氧化物酶(APX)和谷胱甘肽还原酶(GR)的影响。研究结果表明,Cd胁迫下茄子叶片中叶绿素受损,通过施加不同磷肥,叶绿素含量均呈增长趋势,在SSP施磷类型P3水平下,叶绿素a、叶绿素b、类胡萝卜素和总叶绿素含量分别增加57%、120%、53%和76%。不同磷肥均显著提高光合作用的强度,降低Cd的胁迫。具体来看,净光合速率(Pn)、气孔导度(Gs)均表现为MAP≥DAP≥SSP>DCP,MAP施磷类型P3水平下,Pn为17.4μmol·m^(-2)·s^(-1),Gs为0.2 mmol·m^(-2)·s^(-1),蒸腾速率(Tr)在DCP施磷类型P3水平下,较P0增加了165%,胞间CO_(2)浓度(Ci)在DAP施磷类型P3水平下提高幅度最为明显,较P0提高了28%。施用磷肥可以显著增加抗氧化酶系统的活性,但不同磷肥对抗氧化酶系统活性的提升效果不同,其中磷酸二铵对MDA含量的降低幅度最为明显,为41%;磷酸一铵对SOD、POD和CAT活性的增加最显著,分别增加了43%、106%和66%;过磷酸钙对APX和GR的活性增幅最大,分别为54%和93%。因此,施加不同磷肥可以缓解Cd胁迫下对茄子叶片的毒害,增强光合作用,提高抗氧化酶活性的作用。

六种常用农药成分在茄子中残留降解动态

本研究旨在探索啶虫脒、噻虫胺、噻虫嗪、哒螨灵、联苯菊酯和高效氟氯氰菊酯在茄子中的残留降解动态,以支持食品安全和生态环境保护。通过气相色谱—三重四极杆质谱法和液相色谱—三重四极杆质谱法,检测了这些农药在茄子中的降解情况,并采用一级动力学模型拟合了降解曲线,得到了农药组分的半衰期。结果表明,农药残留降解受到农药种类、环境条件和作物种类等多重因素的影响,不同农药在茄子中的残留期有所差异。部分农药的降解需结合二级动力学模型进行深入分析,从而得到了新的拟合降解方程。本研究为茄子种植中农药的合理施用及减少农药残留提供了科学指导。

长茄新品种黑媄的选育

黑媄长茄是利用母本SEG203F和父本SEG203M进行测试配对,经保护地种植开展性状调查及抗病性鉴定,结果表现优良,优势突出,定名为黑媄。该品种植株健壮,株型半开,叶片中大,易栽培,弱光条件下坐果良好,连续坐果能力强,着色优秀,果长35~40 cm,果肩3.5 cm,果实中间横经5 cm,单果重约230 g,萼片紫,果肉乳白色,品质佳,果皮紫黑,有光泽,商品性好,耐储运,适于温室及露地栽培。

嫁接机作业质量监测试验研究

嫁接作业质量监测是提高茄果类嫁接机作业成功率的重要技术手段。为此,采用机器视觉的方法对嫁接过程中番茄嫁接苗的倾斜角度、弯曲角度、有无接穗等信息进行检测,以此为基础来判断嫁接苗的作业质量,进而为嫁接机嫁接作业和生产质量管理提供信息。试验结果表明:针对嫁接苗倾斜角度、弯曲角度,机器视觉测量相对人工测量的最大角度误差不超过2.15°;针对试验所选180株嫁接苗判断合格与否,与人工判断对比,视觉判断成功率为92.2%,故提出的方法可以对番茄嫁接苗的特征信息进行有效识别。此检测方法还可以调整相关参数,用于其他贴接类嫁接苗的作业质量特征识别应用。

土壤修复菌剂对设施茄子生长及土壤理化性质的影响

以崇明青茄材料为研究对象,在常规施肥的基础上外施不同量的土壤修复菌剂,对土壤理化性质及茄子产量、品质相关指标进行了检测,并验证其施用效果。结果表明,土壤修复菌剂处理提高了茄子产量,增加其商品果率、茄子果实品质,同时提高土壤各理化指标,对土壤起到良好的修复效果。综合茄子产量及品质,选择施用2250 kg/hm^(2)土壤修复菌剂处理为最佳改良施用量。