| 2012 | Citrus sinensis |
| 676 | Citrus fruit |
| 506 | Fruit |
| 494 | Citrus sinensis (chemistry) |
| 488 | Humans |
| 458 | Fruit crop |
| 392 | Citrus |
| 318 | Fruit tree |
| 266 | Animals |
| 258 | Orange |
| 238 | Fruit (chemistry) |
| 235 | Male |
| 214 | Female |
| 188 | Beverages (analysis) |
| 174 | Plant leaf |
| 163 | Citrus paradisi |
| 160 | Beverages |
| 155 | Citrus reticulata |
| 147 | Citrus sinensis (microbiology) |
| 146 | Rootstock |
| 142 | Adult |
| 136 | Hydrogen-Ion Concentration |
| 135 | Citrus sinensis (genetics) |
| 128 | Temperature |
| 128 | Citrus sinensis (metabolism) |
| 127 | Chemical composition |
| 124 | Orchard |
| 115 | Yield |
| 115 | Growth |
| 113 | Time Factors |
| 107 | Citrus aurantium |
| 105 | Quality |
| 101 | Pest |
| 99 | Florida |
| 99 | Cultivar |
| 98 | Poncirus trifoliata |
| 94 | Molecular Sequence Data |
| 93 | Citrus (chemistry) |
| 91 | Gene Expression Regulation, Plant |
| 90 | Horticulture |
| 88 | Essential oil |
| 83 | Kinetics |
| 81 | Tissue culture |
| 81 | Rutaceae |
| 79 | Citrus limonum |
| 78 | Brazil |
| 77 | Regeneration |
| 77 | Phytopathogen |
| 75 | Middle Aged |
| 74 | Plant Diseases (microbiology) |
| 73 | Plant Proteins (genetics) |
| 73 | Beverages (microbiology) |
| 71 | Production quality |
| 71 | Plant Proteins (metabolism) |
| 70 | Plant Extracts (pharmacology) |
| 70 | Orange juice |
| 69 | Vegetals |
| 66 | Food Handling (methods) |
| 66 | Enzymatic activity |
| 65 | Comparative study |
| 64 | Photosynthesis |
| 64 | Citrus sinensis (growth & development) |
| 64 | Chemical control |
| 64 | Abscission |
| 63 | Mycosis |
| 63 | Gene expression |
| 63 | Citrus (genetics) |
| 63 | Amino Acid Sequence |
| 61 | Salinity |
| 61 | Root |
| 61 | Fruit (metabolism) |
| 61 | Flavonoid |
| 61 | Ethylene |
| 59 | Nutrition |
| 58 | Spain |
| 58 | Plant pathogen |
| 58 | Irrigation |
| 57 | Protoplast |
| 57 | Plant growth substance |
| 57 | Field experiment |
| 56 | Plant origin |
| 55 | Young Adult |
| 55 | Reproducibility of Results |
| 55 | Phylogeny |
| 54 | Plant Extracts (chemistry) |
| 54 | Hot Temperature |
| 54 | Gene |
| 54 | Chromatography, High Pressure Liquid |
| 53 | Food Contamination (analysis) |
| 53 | Cross-Over Studies |
| 52 | Tolerance |
| 52 | Metabolism |
| 52 | Inorganic element |
| 51 | Citrus limon |
| 49 | Seasonal variation |
| 49 | Nitrogen |
| 49 | Food Preservation (methods) |
| 49 | Damage |
| 49 | Antioxidant |
| 48 | Peel |
| 47 | Ripening |
| 47 | Postharvest |
| 47 | Growth regulator treatment |
| 47 | Development |
| 47 | Color |
| 47 | Characterization |
| 47 | Biological control |
| 46 | Food Microbiology |
| 45 | Species Specificity |
| 45 | Mass spectrometry |
| 44 | Pesticide Residues (analysis) |
| 44 | Gas chromatography |
| 43 | Treatment efficiency |
| 43 | Chemical analysis |
| 42 | Penicillium digitatum |
| 42 | Experimental study |
| 42 | Citrus sinensis (enzymology) |
| 42 | Callus |
| 41 | Somatic hybrid |
| 41 | Fruit (growth & development) |
| 41 | Colony Count, Microbial |
| 41 | Citrus tristeza virus |
| 41 | Ceratitis capitata |
| 41 | California |
| 41 | Biosynthesis |
| 41 | Base Sequence |
| 41 | Adolescent |
| 40 | Rats |
| 40 | Plant pathology |
| 40 | Malus |
| 40 | Enzyme |
| 39 | Nitrogen fertilization |
| 39 | Interspecific comparison |
| 39 | Gene Expression Profiling |
| 39 | Citrus unshiu |
| 38 | citrus |
| 38 | Volatile compound |
| 38 | Genetic improvement |
| 38 | Gas Chromatography-Mass Spectrometry |
| 38 | Adsorption |
| 38 | Abscisic acid |
| 37 | In vitro |
| 37 | Carotenoid |
| 37 | Biological accumulation |
| 36 | Oils, Volatile (pharmacology) |
| 36 | Insecticide |
| 36 | Diet |
| 36 | Carbohydrate |
| 36 | Bacteriosis |
| 35 | Water |
| 35 | Warehousing |
| 35 | Postharvest disease |
| 35 | Plant Leaves (metabolism) |
| 35 | Identification |
| 35 | HPLC chromatography |
| 35 | Fruit (genetics) |
| 35 | Chromatography, High Pressure Liquid (methods) |
| 34 | Somatic embryo |
| 34 | Sensitivity and Specificity |
| 34 | Fruit (microbiology) |
| 34 | Citrus (metabolism) |
| 34 | Ascorbic Acid (analysis) |
| 33 | Vector |
| 33 | Storage |
| 33 | Sequence Alignment |
| 33 | Purification |
| 33 | Physiological disorder |
| 33 | Hybrid |
| 33 | Fungicide |
| 33 | Fermentation |
| 33 | Beverages (adverse effects) |
| 33 | Bacteria |
| 33 | Anti-Bacterial Agents (pharmacology) |
| 32 | Taste |
| 32 | Mice |
| 32 | Genetic transformation |
| 32 | Fruit juice |
| 32 | Dose-Response Relationship, Drug |
| 32 | Ascorbic acid |
| 32 | Application method |
| 32 | Absorption |
| 31 | Sensitivity resistance |
| 31 | Reverse Transcriptase Polymerase Chain Reaction |
| 31 | Grafting |
| 31 | Culture medium |
| 31 | Citrus (growth & development) |
| 31 | China |
| 31 | Child |
| 31 | Biological activity |
| 31 | Antioxidants (analysis) |
| 30 | Plant juvenile growth stage |
| 30 | Phosphorus |
| 30 | Mutation |
| 30 | Genes, Plant |
| 30 | Gas exchange |
| 30 | Carbon dioxide |
| 29 | Zinc |
| 29 | Tephritidae |
| 29 | Stress |
| 29 | Quantitative analysis |
| 29 | Production |
| 29 | Phytotoxicity |
| 29 | Phytotherapy |
| 29 | Oxidation-Reduction |
| 29 | Oils, Volatile (chemistry) |
| 29 | Nitrates |
| 29 | Foliar analysis |
| 29 | Flower |
| 29 | Epidemiology |
| 29 | Consumer Product Safety |
| 29 | Aged |
| 28 | Plant |
| 28 | Plant Leaves (microbiology) |
| 28 | Microbial Sensitivity Tests |
| 28 | Malus (chemistry) |
| 28 | Isolation |
| 28 | Grapefruit |
| 28 | Gene Expression |
| 28 | Fungi |
| 28 | Citrus jambhiri |
| 28 | Carotenoids (analysis) |
| 28 | Biological Availability |
| 27 | Water deficit |
| 27 | Population dynamics |
| 27 | Pest management |
| 27 | Mediterranean region |
| 27 | Fructification |
| 27 | Embryonic development |
| 27 | Cold |
| 27 | Cloning, Molecular |
| 27 | Citrus (enzymology) |
| 27 | Cell fusion |
| 27 | Antioxidants (pharmacology) |
| 27 | Antioxidants (metabolism) |
| 27 | Acidity |
| 26 | Transgenic plant |
| 26 | Method |
| 26 | Mandarin |
| 26 | Greenhouse study |
| 26 | Food |
| 26 | Food Analysis (methods) |
| 26 | Flavoring Agents |
| 26 | Environmental factor |
| 26 | Deficiency |
| 26 | Chlorophyll |
| 26 | Cell culture |
| 25 | Water potential |
| 25 | Plant tissue |
| 25 | Oligoelement |
| 25 | Odors (analysis) |
| 25 | Morphology |
| 25 | Monoterpene |
| 25 | Modeling |
| 25 | Mineral fertilization |
| 25 | Iron |
| 25 | Flowering |
| 25 | Disease |
| 25 | Citrus sinensis (parasitology) |
| 25 | Citrus aurantifolia |
| 24 | Variety trial |
| 24 | Solubility |
| 24 | Sequence Homology, Amino Acid |
| 24 | Sequence Analysis, DNA |
| 24 | Sandy soil |
| 24 | Polymerase chain reaction |
| 24 | Plant Proteins (chemistry) |
| 24 | Phenols |
| 24 | Pectinesterase |
| 24 | Nigeria |
| 24 | Models, Biological |
| 24 | Microscopy, Electron, Scanning |
| 24 | Food preservation |
| 24 | Developmental stage |
| 24 | Coupled method |
| 24 | Citrus sinensis (immunology) |
| 24 | Citrus (microbiology) |
| 24 | Cattle |
| 24 | Carotenoids (metabolism) |
| 23 | Water stress |
| 23 | Skin |
| 23 | Plant Oils (chemistry) |
| 23 | Phenols (analysis) |
| 23 | Molecular Weight |
| 23 | Mass Spectrometry |
| 23 | Israel |
| 23 | Genotype |
| 23 | Freeze |
| 23 | Food Handling |
| 23 | Flavonoids (analysis) |
| 23 | Diptera |
| 23 | Dietary Supplements |
| 23 | Citrus sinensis (adverse effects) |
| 23 | Anthocyanin |
| 22 | United States |
| 22 | Temperature effect |
| 22 | Stem |
| 22 | Spatial distribution |
| 22 | Senescence |
| 22 | Refrigerated storage |
| 22 | Potassium |
| 22 | Phenotype |
| 22 | Medicinal plant |
| 22 | Lycopersicon esculentum |
| 22 | Light |
| 22 | Laboratory study |
| 22 | Gas Chromatography-Mass Spectrometry (methods) |
| 22 | Flavor |
| 22 | Evaluation |
| 22 | Cultural practice |
| 22 | Citrus grandis |
| 22 | Aroma |
| 22 | Agrobacterium tumefaciens |
| 22 | Agriculture |
| 21 | Water regime |
| 21 | Water (chemistry) |
| 21 | Viral disease |
| 21 | Transpiration |
| 21 | Stomatal conductance |
| 21 | Population density |
| 21 | Plant Diseases (genetics) |
| 21 | Pharmacognosy |
| 21 | Panonychus citri |
| 21 | Micropropagation |
| 21 | Mechanical harvesting |
| 21 | Limit of Detection |
| 21 | Lemon |
| 21 | Isolate |
| 21 | Host plant |
| 21 | Genome, Plant |
| 21 | Detection |
| 21 | Cold Temperature |
| 21 | Citrus sinensis (physiology) |
| 21 | Auxin |
| 20 | Symptomatology |
| 20 | Stored food product |
| 20 | Spraying |
| 20 | Soil plant relation |
| 20 | Scion |
| 20 | Salt resistance |
| 20 | Resistance |
| 20 | Population survey |
| 20 | Plant Leaves (genetics) |
| 20 | Phytophthora citrophthora |
| 20 | Nutritional status |
| 20 | Molecular Structure |
| 20 | Microbiology |
| 20 | Maturity |
| 20 | Manganese |
| 20 | Extract |
| 20 | Double-Blind Method |
| 20 | Content |
| 20 | Complementary DNA |
| 20 | Citrus sinensis (drug effects) |
| 20 | Citrus paradisi (chemistry) |
| 20 | Calibration |
| 20 | Calcium |
| 20 | Biomass |
| 20 | Antioxidants (chemistry) |
| 19 | ethylene |
| 19 | Xanthomonas campestris pv. citri |
| 19 | Ultrastructure |
| 19 | Tropical zone |
| 19 | Tandem Mass Spectrometry |
| 19 | Residue |
| 19 | Rats, Wistar |
| 19 | Random amplified polymorphic DNA marker |
| 19 | RNA, Plant (genetics) |
| 19 | Plant Leaves (physiology) |
| 19 | Plant Leaves (chemistry) |
| 19 | Pectin |
| 19 | ORCHARD SOILS |
| 19 | Genes, Plant (genetics) |
| 19 | Field study |
| 19 | Egypt |
| 19 | Citrus volkameriana |
| 19 | Citrus (physiology) |
| 19 | Chromatography, Gas |
| 19 | Chemical treatment |
| 19 | Cell wall |
| 19 | Carboxylic Ester Hydrolases (metabolism) |
| 19 | Canopy(vegetation) |
| 19 | 2,4-D |
| 18 | Xylem |
| 18 | Tylenchulus semipenetrans |
| 18 | Terpenes (chemistry) |
| 18 | Soils |
| 18 | Seasons |
| 18 | Regulation(control) |
| 18 | Quarantine |
| 18 | Quality Control |
| 18 | Plants, Genetically Modified |
| 18 | Plant Oils (pharmacology) |
| 18 | Physicochemical properties |
| 18 | Nutrient |
| 18 | Method study |
| 18 | Materials Testing |
| 18 | Italy |
| 18 | Isozyme |
| 18 | Intergeneric hybridization |
| 18 | Insecticides (pharmacology) |
| 18 | Infection |
| 18 | Hydrolysis |
| 18 | Human |
| 18 | Genetic variability |
| 18 | Genetic marker |
| 18 | Food-Drug Interactions |
| 18 | Fluorescence |
| 18 | Climate |
| 18 | Chlorosis |
| 18 | Australia |
| 18 | Analysis of Variance |
| 17 | orange juice |
| 17 | Therapeutic efficiency |
| 17 | Strain |
| 17 | Soil |
| 17 | Risk Factors |
| 17 | Quality control |
| 17 | Plant Extracts (therapeutic use) |
| 17 | Pigmentation |
| 17 | Phytophagous |
| 17 | Models, Theoretical |
| 17 | Mexico |
| 17 | Measurement method |
| 17 | Larva |
| 17 | Intraspecific comparison |
| 17 | Interspecific hybridization |
| 17 | Hesperidin (pharmacology) |
| 17 | Heat treatment |
| 17 | Food Habits |
| 17 | Concentration |
| 17 | Citrus medica |
| 17 | Analysis method |
| 16 | Volatilization |
| 16 | Translocation |
| 16 | Transcriptome |
| 16 | Toxicity |
| 16 | Tooth Erosion (etiology) |
| 16 | South Africa |
| 16 | Seeds |
| 16 | Respiration |
| 16 | Proteins |
| 16 | Polymerase Chain Reaction |
| 16 | Phytophthora |
| 16 | Pesticides |
| 16 | Nutritive Value |
| 16 | Least-Squares Analysis |
| 16 | Hemiptera |
| 16 | Harvesting |
| 16 | Gibberellins |
| 16 | Fruit (enzymology) |
| 16 | Food Contamination (prevention & control) |
| 16 | Foliar fertilization |
| 16 | Flavonoids (chemistry) |
| 16 | Dental Enamel (pathology) |
| 16 | DNA, Complementary (genetics) |
| 16 | Cryopreservation |
| 16 | Cluster Analysis |
| 16 | Citrus (drug effects) |
| 16 | Citroncirus webberi |
| 16 | Chromatography, Liquid (methods) |
| 16 | Cells, Cultured |
| 16 | Area Under Curve |
| 16 | Antifungal agent |
| 16 | Animal plant relation |
| 15 | pH |
| 15 | essential oils |
| 15 | Sprinkler irrigation |
| 15 | Spectrometry, Mass, Electrospray Ionization |
| 15 | Solutions |
| 15 | Soil moisture |
| 15 | Sesquiterpenes |
| 15 | Ribulosebisphosphate carboxylase |
| 15 | Protein |
| 15 | Phytophthora nicotianae |
| 15 | Physicochemical Phenomena |
| 15 | Phloem |
| 15 | Pest and disease control |
| 15 | Peroxidase |
| 15 | Pectins (chemistry) |
| 15 | Parasite |
| 15 | Nitrogen fertilizer |
| 15 | Histology |
| 15 | Hardness |
| 15 | Food Preservation |
| 15 | Explant |
| 15 | Dose activity relation |
| 15 | Dental Enamel (drug effects) |
| 15 | Cytokinin |
| 15 | Culture Media |
| 15 | Citrus (parasitology) |
| 15 | Chlorides |
| 15 | Chemical concentration |
| 15 | Botany |
| 15 | Aminoacid |
| 14 | Treatment Outcome |
| 14 | Transmission |
| 14 | Tetraploidy |
| 14 | Terpenoid |
| 14 | Survival |
| 14 | Sucrose |
