R08 Correction-Round Citation Verification (CCKE PROTOCOL v1.3)

Date: 2026-08-31 | Verifier: Claude (Crossref API + Europe PMC full text + site fetches)

Summary table

Details

1. “Massuela et al. 2023, DOI 10.3390/plants12071536” — IDENTITY FAILED

10.3390/plants12071536 resolves to: Arruda, Borsoi, Andrade, Pastore, Marostica Junior (2023), “Scientific Advances in the Last Decade on the Recovery, Characterization, and Functionality of Bioactive Compounds from the Araticum Fruit (Annona crassiflora Mart.)”, Plants 12(7):1536 — a Brazilian fruit-chemistry review, zero connection to cannabis or Massuela. There is no 2023 MDPI Plants paper by Massuela. Crossref shows only two Massuela cannabis papers: (a) Crispim Massuela et al. 2022, “Impact of Harvest Time and Pruning Technique on Total CBD Concentration and Yield of Medicinal Cannabis”, Plants 11(1):140, 10.3390/plants11010140 (harvest/pruning — no organic-vs-mineral comparison); (b) the already-verified Massuela et al. 2023, Frontiers in Plant Science 14:1233232, DOI 10.3389/fpls.2023.1233232 (“Cannabis Hunger Games: … impact of organic and mineral fertilizer levels on biomass, CBD yield and NUE”), which is the correct tuple for the 19.6 vs 23.7 g/plant (+21% mineral) comparison. Action: replace 10.3390/plants12071536 with 10.3389/fpls.2023.1233232 at all occurrences.

2. “Carlile et al. 2015, DOI 10.1016/j.scienta.2015.01.022” — IDENTITY FAILED

Resolves to: Kitazaki et al. 2015, “Far-red light enhances removal of pericarps in tartary buckwheat (Fagopyrum tataricum Gaertn.) sprout production under artificial lighting”, Scientia Horticulturae 185:167-174 — unrelated (buckwheat sprouts / far-red light). Correct tuple (previously verified): Carlile, Cattivello & Zaccheo 2015, “Organic Growing Media: Constituents and Properties”, Vadose Zone Journal 14(6), DOI 10.2136/vzj2014.09.0125.

3. Raviv et al. 2002, DOI 10.1016/B978-044450597-2/50005-4 — IDENTITY FAILED (fabricated/mangled DOI)

• The DOI returns 404 at both Crossref and doi.org — it is not registered.
• The embedded ISBN 978-0-444-50597-2 belongs to “Numerical Analysis 2000: Interpolation and Extrapolation” (Brezinski, Elsevier) — a mathematics volume. The DOI cannot be a Raviv horticulture chapter.
• Plausible intended sources for “container physical property degradation over cycles”:
  • Wallach, R. (2008) “Physical Characteristics of Soilless Media”, ch. 3 in Raviv & Lieth (eds), Soilless Culture: Theory and Practice, Elsevier — DOI 10.1016/b978-044452975-6.50005-8 (Crossref-verified; note near-identical suffix “50005”, suggesting a mangled copy of this DOI).
  • Raviv, Wallach & Blom (2004) “The effect of physical properties of soilless media on plant performance — a review”, Acta Horticulturae 644, DOI 10.17660/actahortic.2004.644.34 (Crossref-verified).
  • A genuine “Raviv et al. 2002” chapter exists only as Raviv, Wallach, Silber & Bar-Tal, “Substrates and their analysis”, in Savvas & Passam (eds), Hydroponic Production of Vegetables and Ornamentals, Embryo Publications, Athens, 2002 — no DOI exists for it.
• Action: do not use the cited DOI. Recommend re-anchoring to Wallach 2008 (10.1016/b978-044452975-6.50005-8) after confirming it supports the specific degradation-over-cycles claim.

4. “Argo & Fisher 2002” via seedlinggrowers.co.za PDF — IDENTITY PARTIAL / CLAIM YES / URL FLAGGED

• Real bibliographic object: Argo, W.R. & Fisher, P.R. (2002), Understanding pH Management for Container-Grown Crops, Meister Publishing, Willoughby OH (book; no DOI). Argo & Fisher also have a large Crossref-verified HortScience/HortTechnology corpus on container substrate pH (e.g., Bishko, Fisher & Argo 2002 HortScience 37(3):511; Fisher, Argo & Biernbaum 2014 HortScience 49(8):1061 on fertilizer potential acidity and substrate pH).
• Claim (“substrate pH dominated by irrigation water bicarbonate alkalinity; >100 mg/L CaCO3 drives pH upward/>7.4”): consistent with the Argo & Fisher pH-management framework — water alkalinity is treated as the dominant long-term driver of substrate pH, with ~2 meq/L (~100 mg/L CaCO3) the common threshold where pH climb becomes problematic without acid injection. CLAIM YES (thresholds are their standard guidance range).
• URL check: https://seedlinggrowers.co.za/.../Managing-your-pH_Paul-Fisher-and-Bill-Argo.pdf returns HTTP 200, application/pdf, 191 KB — the file exists, but it is a third-party South African nursery’s re-host of a trade-press article, not a stable identifier. FLAG per CCKE: cite the Meister 2002 book (ISBN 1892829134) or a Crossref-DOI’d Argo/Fisher paper instead; keep the URL at most as a courtesy link.

5. Ramirez et al. 2012 — IDENTITY VERIFIED / CLAIM PARTIAL

Ramirez, Craine & Fierer 2012, “Consistent effects of nitrogen amendments on soil microbial communities and processes across biomes”, Global Change Biology 18(6):1918-1927. Topic matches (N fertilization suppresses/alters soil microbial communities). Caveat: it is an experimental study of 28 soils from a broad range of ecosystems, not formally a “global meta-analysis” — soften wording to “cross-biome study of 28 soils”.

6. Scheuerell & Mahaffee 2002 — IDENTITY VERIFIED / CLAIM YES

“Compost Tea: Principles and Prospects For Plant Disease Control”, Compost Science & Utilization 10(4):313-338. Exactly the canonical compost-tea review.

7. Pant et al. 2012 — IDENTITY VERIFIED / CLAIM YES

Pant, Radovich, Hue & Paull 2012, “Biochemical properties of compost tea associated with compost quality and effects on pak choi growth”, Scientia Horticulturae 148:138-146. Compost tea study as cited.

8. Mills 2025 — IDENTITY VERIFIED / CLAIM YES

Mills, E. 2025, “Energy-intensive indoor cultivation drives the cannabis industry’s expanding carbon footprint”, One Earth 8(3):101179. Cannabis LCA/carbon as cited (the Mills 2012 update).

9. Punja et al. 2025 — Virkon S claim: CLAIM NO (REFUTED by full text)

Full text obtained via Europe PMC (PMC11902214). Findings on Virkon S (potassium peroxymonosulfate, tested 0.25-2%, some assays to 4%):

• Whole roots: Virkon (0.25-2%) had no effect on HLVd RNA stability.
• Intact leaves: no effect.
• Crushed leaf extracts / sap on filter discs: 2% Virkon did not degrade the RNA (bands still amplified); only 10-20% bleach and 1000 ppm HOCl destroyed it.
• Direct sap treatment: no effect.
• Only in water containing diluted infectious sap did 2% Virkon degrade HLVd RNA.
• Discussion states explicitly: “Other chemical products, including Virkon, while not affecting viroid RNA integrity in vitro, may still be recommended as a cleaning agent…” Verdict: the claim “2% Virkon S achieves effective HpLVd RNA inactivation” is false as a general statement. Accurate statement: 2% Virkon S was ineffective against HLVd RNA in plant tissue and sap; it degraded HLVd RNA only in contaminated water. The paper’s effective disinfectants are 10-20% bleach (8.25% NaOCl product; i.e., >=~0.8% NaOCl final) and 1000 ppm (600-1000 ppm in water) hypochlorous acid.

9a. Verbatim bleach/HOCl/Virkon quotes (Europe PMC PMC11902214), by section

• Abstract: “Infectious plant extract treated with 5–10% bleach (0.825% NaOCl) or 1000 ppm hypochlorous acid yielded no RT-PCR bands, suggesting the RNA was degraded.”
• 2.12.1 Whole Roots: “The exposure of HLVd-infected root segments to treatments that included the commercial sanitation products Virkon (0.25–2%)and Zerotol (0.33–2%), as well as the laboratory sanitation products that included bleach containing 8.25% NaOCl (5–20%) and hypochlorous acid (0.1–2 ppm) for 2 min followed by rinsing, RNA extraction from treated and untreated tissues and RT-PCR showed that none of the treatments affected the stability of the viroid…”
• 2.12.2 Leaf Extracts: “…only bleach at 20% degraded the RNA to a point where it was not amplified by RT-PCR (Figure 15c).” / “The treatments that did not show an effect included Virkon (2%), Zerotol (2%), hypochlorous acid (200 ppm), RNase A (1 unit), skim milk powder (20%) and control (no treatment).” / “The results showed that only bleach at 10% for 2 min or at 20% for 1 or 2 min completed degraded HLVd RNA, while 10% bleach for 1 min caused partial degradation…” / “Further treatments that completely degraded the RNA of HLVd in extracted plant sap were 1000 ppm hypochlorous acid for 1 min and skim milk powder (20%) for 20 min.” / “Bleach at 5, 10 and 20% was effective in degrading the RNA of HLVd at all dilutions (Figure 17a).” [sap diluted 1:1, 1:2, 1:4 in water]
• Figure 17 caption: “(a) …destroyed the RNA since it was not amplified or was only weakly amplified: 5%, 10% and 20% bleach (8.25% NaOCl) with sap diluted by 1:1, 1:2 and 1:4.” / “(c) …Treatments that did not produce a band were bleach (B) containing 8.25% NaOCl at 5, 10 and 20%, 2% Virkon in water (V) and 600 ppm hypochlorous acid.”
• 2.12.3 Contaminated Water: “…bleach (5–20%) and hypochlorous acid (600 ppm) were shown to be effective once again…” / “Treatment with UV-C for 1–5 min had no effect but Virkon at 2% degraded the RNA of HLVd whereas, in previous experiments, this chemical was ineffective when plant sap was treated compared to sap diluted in water.”
• Discussion: “In the present study, bleach products containing 7.55–8.25% NaOCl were shown to be effective at levels ranging from 5% to 20%.” / “…achieving minimal levels comparable to that provided by 5% of 7.55% NaOCl is required.” / “Other chemical products, including Virkon, while not affecting viroid RNA integrity in vitro, may still be recommended as a cleaning agent to reduce virus and viroid transmission [32, 67].” / “When added to water containing HLVd, Virkon at 2% reduced viroid integrity but had no effect when it was added directly to plant sap.”
• 4.18 Methods: “The commercial greenhouse products tested were Virkon S (potassium peroxymonosulfate + sodium chloride, LanXESS, Toronto, ON, Canada) (tested at 0.25, 1.0, 1.5 and 2.0%)…” / “The laboratory sanitation products tested included household bleach (Chlorox, containing 8.25% sodium hypochlorite NaOCl) (tested at 5, 10, 15 and 20%) and hypochlorous acid … (tested at 0.1, 0.25, 0.5, 1.0 and 2.0 ppm).” [roots] / “Virkon at 2–4%, Zerotol at 2%, bleach at 2.5–20% and hypochlorous acid at 200–1000 ppm.” [leaf discs] / “bleach (8.25% NaOCl) at a final concentration of 5, 10 and 20% (v/v), Virkon at a concentration of 2% (w/v), … hypochlorous acid at a concentration of 600 ppm” [water]

Reconciliation: the “5–10% bleach” (abstract) vs “10–20% bleach” figures are matrix-dependent, both textual: undiluted sap on discs required 10% (2 min) or 20%; sap diluted in water and contaminated water were cleared by 5–20%; Discussion generalizes “effective at levels ranging from 5% to 20%”. Nothing worked on intact roots or leaves. Recommended citation wording: “bleach (8.25% NaOCl product) at 10–20% on sap-contaminated surfaces, 5% sufficient in dilute aqueous matrices; 600–1000 ppm HOCl; Virkon S 2% ineffective except in water.”

10. Angelova 2004 + Linger 2002 — organ ordering claim: PARTIAL

• Angelova et al. 2004 (Industrial Crops and Products 19(3):197-205; identity VERIFIED): for flax and hemp the reported order is roots > stems > leaves > seeds (cotton differs: leaves > seeds > roots > stems).
• Linger et al. 2002 (Industrial Crops and Products 16(1):33-42; identity VERIFIED): measured seeds, leaves, fibres, hurds only — no roots, no flowers; highest concentrations were in leaves (Pb: leaves > fibres > shives > seeds; Cd: leaves > seeds > fibres~shives).
• Attributed claim “Roots >> Leaves > Stems > Flowers”: root dominance is supported (Angelova, hemp), and low flower/seed accumulation is supported, but the Leaves > Stems middle ordering is contradicted by Angelova (stems > leaves in hemp) and neither paper measured flowers. The two papers also disagree with each other on leaves-vs-stems. Recommend restating as: “roots retain the most; reproductive tissues (seeds) the least; leaf-vs-stem ordering varies by metal and study (Angelova 2004: roots > stems > leaves > seeds; Linger 2002, aboveground only: leaves highest).”

11. Producer URL spot-checks (ANECDOTAL tier)

• (a) coastmountaincannabis.com — EXISTS, MATCHES: “organic cannabis… certified by ProCert… No-Till Organic Living Soil… grown in BC”. Indoor/Pemberton not stated on homepage (BC location generic) — core claims match.
• (b) rubiconorganics.com — EXISTS, MOSTLY MATCHES: Simply Bare(TM) Organic brand confirmed; Delta BC facility implied (asset “RO_Delta_QualityatScale”); FVOPA certification not stated on homepage (interior page likely) — PARTIAL on certification detail.
• (c) sweetdirt.com — EXISTS, PARTIAL/MISMATCH: now presents as a Maine recreational dispensary curating products “from local Maine cannabis companies”; stores temporarily closed for renovations; no MOFGA Clean Cannabis language on current homepage. Certification claim not verifiable from current site.
• (d) habitat.life — EXISTS, MISMATCH on current content: homepage is now aquaponics + organic coho salmon and salmon ova; aquaponics in Chase BC historically correct for Habitat Craft Cannabis, but no cannabis on current homepage — the cannabis operation appears de-emphasized/exited. Flag as stale reference.
• (e) stewartfarms.life — EXISTS, MATCHES (partially shown): Stewart Farms, New Brunswick cannabis wellness (THC/CBD bath bombs, topicals); Facebook handle “StewartVerticalFarms”; aquaponics/St. Stephen not on homepage but consistent with brand — core identity matches.
• (f) whistlercannabis.com — EFFECTIVELY DEAD: returns HTTP 200 with a ~114-byte empty page (www. same); no content, no title. Not usable as a citation; find an archived snapshot or replace.

Verdict counts

• IDENTITY: 6 VERIFIED (5,6,7,8,9,10x2 papers), 3 FAILED (1,2,3), 1 PARTIAL (4)
• CLAIM: 4 YES (4,6,7,8), 3 PARTIAL (5,10, and Rubicon-type site partials), 3 NO (1,2,9), 1 UNVERIFIABLE (3)
• URLs: 4 live-and-matching (a,b,e + PDF), 2 partial/stale (c,d), 1 dead (f)