{"id":"W1984875639","doi":"10.2134/agronj14.0571","title":"Performance of Low‐Cost Open‐Top Chambers to Study Long‐Term Effects of Carbon Dioxide and Climate under Field Conditions","year":2015,"lang":"en","type":"article","venue":"Agronomy Journal","topic":"Plant responses to elevated CO2","field":"Agricultural and Biological Sciences","cited_by":22,"is_retracted":false,"has_abstract":true,"ca_institutions":"McGill University; Agriculture and Agri-Food Canada","funders":"","keywords":"Carbon dioxide; Carbon dioxide in Earth's atmosphere; Environmental science; Animal science; Perennial plant; Biomass (ecology); Medicago sativa; Chemistry; Agronomy; Atmospheric sciences; Biology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006258696,0.0007990482,0.0004924616,0.0002146672,0.0003317274,0.0004983022,0.0008008315,0.0004249031,0.001779031],"category_scores_gemma":[0.0005601154,0.0004133677,0.0003733134,0.0001481865,0.0002863284,0.0003318109,0.0003806149,0.0004693504,0.0003575413],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004000356,"about_ca_system_score_gemma":0.0003898297,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001965993,"about_ca_topic_score_gemma":0.003043642,"domain_scores_codex":[0.999631,0.00003606928,0.00003094828,0.0001248896,0.0001216355,0.00005538563],"domain_scores_gemma":[0.9987564,0.0005595557,0.0002217353,0.0001613348,0.0001621785,0.0001388144],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0001115508,0.00004732625,0.0008489375,0.00007059814,0.000009834477,0.00001486295,0.00002046712,0.0003317451,0.9970434,0.00003077408,0.0000533919,0.001416997],"study_design_scores_gemma":[0.00003794796,0.001062471,0.03590946,0.00001492364,0.0001094191,0.0001447492,0.00003628829,0.006350166,0.9525118,0.00005296457,0.003732408,0.00003731277],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9312083,0.0009342569,0.06327215,0.00004148653,0.00009871489,0.0004987957,0.00178567,0.0004268395,0.001733873],"genre_scores_gemma":[0.8825632,0.0008610327,0.1085235,0.0001336417,0.00006088654,0.001923357,0.001801353,0.0002674865,0.003865509],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001965993,"threshold_uncertainty_score":0.005951405,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01971867052887061,"score_gpt":0.2550561946023863,"score_spread":0.2353375240735157,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}