# 77P25 - **Vendor:** ProHarvest Seeds (independent regional brand) - **Brand:** ProHarvest Seeds - **Crop:** Corn - **Relative maturity:** 107 days - **Trait(s):** VT4Pro RIB Complete - **Source:** https://proharvestseeds.com/seed/77p25/ - **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) --- ## General Characteristics - **GDD Pollination:** 1288 - **GDD Black Layer:** 2520 - **Pollination for Maturity:** Average - **Plant Height:** Tall - **Leaf Type:** Semi-Upright - **Ear Height:** Medium-High - **Ear Type:** Semi-Flex - **Kernel Rows:** 18-20 - **Cob Color:** Red - **Test Weight:** Good - **Husk Coverage:** Good - **Covercrop Companion:** Good ## Agronomic Characteristics - **Emergence:** Good - **Seedling Vigor:** Good - **Stay Green:** Good - **Dry Down:** Good - **Stress Tolerance:** Good - **Delayed Harvest:** Good - **Response to Fungicide:** Very Good - **Corn After Corn:** Very Good - **Silage:** Very Good ## Disease Ratings - **Grey Leaf Spot:** 8 - **Northern Corn Leaf Blight:** 8 - **Southern Leaf Blight:** 9 - **Common Rust:** 8 - **Southern Rust:** 7 - **Eye Spot:** 8 - **Goss's Wilt:** 8 - **Stalk Anthracnose:** 9 - **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