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justin eaa7e0789b bayer_seeds: add Channel + DEKALB silage/sorghum/canola + Deltapine cotton

User flagged that Channel is expanding into their area — re-walked
the cropscience.bayer.us sitemap and found 8 additional brand×crop
paths beyond the original DEKALB/Asgrow/WestBred triple. Patches
the scraper to walk all of them; total Bayer varieties roughly
doubles from 475 to 931 and the corpus picks up first-ever
coverage in sorghum (36), cotton (30), canola (6), and silage as a
distinct crop (was conflated with corn before).

Net new varieties: 456
  Channel    corn=181  soy=67   silage=54  sorghum=18    (320)
  DEKALB     silage=82 sorghum=18  canola=6              (106)
  Deltapine  cotton=30                                    (30)

scrape/sources/bayer_seeds.py
- Replace `BRANDS` (brand → 1 path) and `CROP_SUFFIX` (brand → 1
  suffix) with a flatter `BRAND_PATHS` list of (brand, url_path,
  crop, is_primary_for_brand) entries. Channel and DEKALB are now
  multi-crop brands; the same scraper walks every brand×crop pair.
- source_key derivation: for a brand's PRIMARY crop, strip the
  trailing `-<crop>` suffix (matches the existing deployed source
  keys for DEKALB corn / Asgrow soy / WestBred wheat). For
  SECONDARY crops, KEEP the suffix so DEKALB-the-same-SKU sold as
  both grain corn and silage gets two distinct source_keys
  (collision-safe and unambiguous for `lookup_variety`).
- New `--crop` CLI filter for incremental backfills.
- Log line shows brand + crop alongside source_key for visibility.

rag/chunk.py
- Channel + Deltapine pages use slightly different characteristics
  group labels (DISEASE not DISEASE RATINGS, AGRONOMIC
  CHARACTERISTICS not GROWTH/HARVEST, plus MATURITY / ADAPTATION /
  HERBICIDES / OTHER). Fold them into the DISEASE / AGRONOMIC /
  MANAGEMENT label sets so the chunker buckets them correctly
  into the standard sections.

Smoke-tested cross-brand × cross-crop queries against the rebuilt
index (5,529 chunks total) — all 6 sample queries surface the
right brand+crop at top-3:
  Channel corn 110 RM       → 210-25TRE BRAND
  Channel soy 2.5 MG IA     → 2622RXF BRAND
  Deltapine cotton XF       → DP 1820 B3XF BRAND
  Sorghum dryland Kansas    → 6B95 BRAND (Channel)
  Silage corn WI dairy      → DKC64-44RIB BRAND BLEND (silage variant)
  Canola Northern Plains    → DK401TL BRAND

Watchtower will pull the new image on the next push; deploy is
unchanged otherwise.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-26 11:54:30 -04:00

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DKC55-54RIB BRAND BLEND

Vendor: Bayer
Brand: Dekalb
Crop: Silage
Traits: DGVT2PRIB (DroughtGard™ Hybrids with VT Double PRO® RIB corn blend)
Release year: 2020
Source: https://www.cropscience.bayer.us/silage/dekalb/dekalb-dkc55-54rib-silage
Rating scale (Bayer): 1-9 (9 = best)

Positioning

DKC55-54RIB Brand Blend has shown consistent yields under drought stress as well as in productive environments. A strong agronomic and disease package help make this product suited to most environments and management systems.

Strengths & management

Can provide strong physoderma tolerance
Strong Goss's Wilt and greensnap ratings
Plant at medium to medium-high populations to help maximize performance
Adaptable to corn following corn rotations
Excellent silage yield potential with strong quality data
Use appropriate caution when using growth regulator herbicides

Management

Characteristic	Value
VALUE ADDED TRAIT	DGVT2PRIB
RELATIVE MATURITY	105
GDUS TO MID-POLLINATION	1330
GDUS TO BLACK LAYER	2605
PLANTING RATE	Medium
SILAGE PROVEN	No
NEW PRODUCT	NO
DEKALB® DISEASE SHIELD®	YES
VARIETY	01082556

Plant Description

Characteristic	Value
COB COLOR	Red
KERNEL CAP COLOR	Yellow
KERNEL ROW	16

Growth

Characteristic	Value
EMERGENCE	3
SEEDLING GROWTH	2
ROOT STRENGTH	3
STALK STRENGTH	3
DROUGHT TOLERANCE	2
GREENSNAP	2
PLANT HEIGHT	Medium
EAR PLACEMENT	Medium

Harvest

Characteristic	Value
STAYGREEN	2
HARVEST APPEARANCE	3
DRYDOWN	2
TEST WEIGHT	3

Diseases

Characteristic	Value
NORTHERN CORN LEAF BLIGHT	4
SOUTHERN CORN LEAF BLIGHT	3
GRAY LEAF SPOT	4
SOUTHERN RUST	5
ANTHRACNOSE STALK ROT	2
GOSS'S WILT	3

Herbicide

Characteristic	Value
GROWTH REGULATORS SENSITIVITY	C
SULFONYLUREAS SENSITIVITY	A
ISOXAZOLES SENSITIVITY - PRE-EMERGENCE	A

Silage Characteristics

Characteristic	Value
NDFD 24 HR	2
NDFD 30 HR	1
% OF STARCH	3
IVSD7HR	2
SILAGE YIELD	3
MILK PER TON	2
MILK PER ACRE	2

Other

Characteristic	Value
MARKETING CLASSIFICATION	Disease Shield

Regional seed-guide listings

2024 South Dakota Product Guide — agronomist: Jeff Spieler
2025 South Dakota Product Guide — agronomist: Jeff Spieler
2025 South Dakota Product Guide — agronomist: Jeff Fuls
2024 South Dakota Product Guide — agronomist: Gary Hegg

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