9600235466
Four independent regional brands across IA/IN/IL (variety-identity sources,
each parsed into structured characteristics_groups so ratings embed):
- latham (264: 155 corn + 109 soy) — Latham Hi-Tech Seeds, Alexander IA.
WordPress REST enum (/wp-json/wp/v2/varieties) + /products/<slug>/ detail
HTML. Scale 1-9 LOWER=better (reversed, like NK/AgriPro).
- stine (217: 58 corn + 159 soy) — Stine Seed, Adel IA (largest US
independent). sitemap enum + /{crop}/traits/<slug>/<code>/ detail HTML.
Corn 1-9 (9=best); soy qualitative.
- first_choice (78: 52 corn + 22 soy + 4 wheat) — 1st Choice Seeds,
Rushville IN (employee-owned). Per-crop sitemap -> detail HTML. Scale
0-10 higher=better. ~40 older corn pages thin at source; wheat
identity-only.
- burrus (64: 38 corn + 26 soy) — Burrus Seed, Arenzville IL. Seedware
JSON API. Scale 1-10 (10=best). Brands Burrus/Power Plus/DONMARIO.
robots ai-train=no + named-bot blocks; operator opted in, scraper uses a
non-blacklisted UA + honors Crawl-delay 10.
All 623 validated through rag.chunk.chunks_from_variety (0 errors; 6
identity-only pages from source gaps). No chunk.py change needed (identity
sources auto-route to chunks_from_variety).
Docs:
- sources.json: 4 entries + Hoegemeyer added to _excluded_sources. The
Corteva ToU (shared across pioneer.com / hoegemeyer.com / therightseed.com
/ corteva.com + the Vylor spinoff) bans scrapers + competitive use, so the
whole Corteva family is one excluded ToU domain.
- docs_mcp/lessons.md: rating-scales updated with all 4 directions +
an explicit cross-vendor warning (Latham 1=best vs Stine/Burrus higher=best
— never compare raw numbers without _scale_direction).
- README + CLAUDE corpus inventory: now 2,268 variety + 6,787 trial records.
CI rebuilds the index from the committed corpus.
46 lines
1.9 KiB
Markdown
46 lines
1.9 KiB
Markdown
# LH 6227 VT2 PRO RIB
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- **Vendor:** Latham Hi-Tech Seeds (independent family-owned, Alexander, IA)
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- **Brand:** Latham Hi-Tech Seeds
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- **Crop:** Corn
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- **Relative maturity:** 112 days
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- **Trait(s):** VT2 PRO RIB
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- **Source:** https://www.lathamseeds.com/products/lh-6227-vt2-pro-rib/
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- **Rating scale:** numeric ratings ~1-9 where LOWER = BETTER (1 = best / most tolerant / most resistant); confirmed by cross-referencing Product Overview prose vs values (top-rated stalks/roots cluster 1.0-1.5, weak traits 3.0-3.5, none approach 9). Categorical values pass through verbatim (SCN source 'PI 88788', Phytophthora 'Rps 1k', Anthracnose 'ASR', 'Medium Tall', 'Flex'). NA/blank = not rated.
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- **Service area:** Latham dealer network — Upper Midwest (IA/MN/WI/IL/ND/SD/NE)
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---
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_This hybrid offers wide acre, solid performance at 112-day relative maturity! LH 6227 VT2 PRO RIB brings consistent and uniform ear fill, good kernel depth, very good ear flex and a great disease package, including strong Gosss Wilt tolerance. You’ll achieve the best fall appearance and intactness at harvest time with medium populations across all yield environments. LH 6227 VT2 PRO RIB is a Grain First / Silage Capable hybrid._
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---
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## Agronomic Characteristics
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- **Flowering for Maturity:** Moderately Early
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- **Early Vigor:** 2.0
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- **Stalk Strength:** 2.5
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- **Root Strength:** 1.0
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- **Stay Green:** 3.0
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- **Drydown:** 3.0
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- **Test Weight:** 3.0
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- **Drought Tolerance:** 1.5
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- **Foliar Fungicide:** 2.0
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- **Herbicide Sensitivity:** None Known
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- **Suggested Population:** 28,000-36,000
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- **Corn-on-Corn:** 2.0
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- **Ear Height:** Medium
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- **Ear Type:** Flex
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- **Number of Kernel Rows:** 16-18
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- **Cob Color:** Red
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- **Husk Cover:** Medium Long
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- **Shank Length:** Medium
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- **Leaf Angle:** Semi-Upright
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## Disease Ratings
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- **Goss’s Wilt:** 2.0
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- **Northern Leaf Blight:** 2.0
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- **Anthracnose Stalk Rot:** ASR
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- **Gray Leaf Spot:** 2.0
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