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seed-mcp/corpus/proharvest/proharvest-78p30.md
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2026-06-04 21:05:30 -04:00

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# 78P30
- **Vendor:** ProHarvest Seeds (independent regional brand)
- **Brand:** ProHarvest Seeds
- **Crop:** Corn
- **Relative maturity:** 108 days
- **Trait(s):** VT Double PRO RIB Complete
- **Source:** https://proharvestseeds.com/seed/78p30/
- **Rating scale:** disease 1-9, 9=best/most-tolerant, NA=not rated; agronomic/general qualitative (Excellent/Very Good/Good/Average); soil HR=highly recommended/R=recommended
- **Service area:** Independent dealer network — Eastern/Central Corn Belt (IL/IN/OH/MO/IA/KS/NE)
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## General Characteristics
- **GDD Pollination:** 1287
- **GDD Black Layer:** 2580
- **Pollination for Maturity:** Average
- **Plant Height:** Medium
- **Leaf Type:** Semi-Upright
- **Ear Height:** Medium-High
- **Ear Type:** Semi-Flex
- **Kernel Rows:** 16-18
- **Cob Color:** Red
- **Test Weight:** Good
- **Husk Coverage:** Good
- **Covercrop Companion:** Very Good
## Agronomic Characteristics
- **Emergence:** Very Good
- **Seedling Vigor:** Very Good
- **Dry Down:** Good
- **Stress Tolerance:** Very Good
- **Delayed Harvest:** Good
- **Response to Fungicide:** Very Good
- **Corn After Corn:** Good
- **Silage:** Good
## Disease Ratings
- **Grey Leaf Spot:** 7
- **Northern Corn Leaf Blight:** 6
- **Southern Leaf Blight:** 8
- **Common Rust:** 8
- **Southern Rust:** 6
- **Eye Spot:** 8
- **Goss's Wilt:** 8
- **Stalk Anthracnose:** 8
- **Diplodia Ear Rot:** 8
- **Physoderma:** NA
- **Tar Spot:** 6
## Soil Adaptability
- **Light Soils:** HR
- **Medium Soils:** HR
- **Heavy Soils:** HR
- **Poorly Drained Soils:** R
## Nitrogen Application/Timing
- **Corn/SB 100% Pre:** R
- **Corn/SB Pre/Side:** HR
- **Corn/SB Starter/Side:** HR
- **Corn/Corn 100% Pre:** NR
- **Corn/Corn Pre/Side:** HR
- **Corn/Corn Starter/Side:** HR
- **Corn/Cover 100% Pre:** NR
- **Corn/Cover Pre/Side:** HR
- **Corn/Cover Starter/Side:** HR