Vegetables Corn Sweet Corn Xtra-Tender 277A

Xtra-Tender 277A

(F1) Corn Seed

Product ID: 2637

Bicolor super sweet (sh2) with exceptional eating quality.

Ears avg. 7½" long with 18-20 rows of exceptionally sweet, tender kernels. Average germination vigor. Recommended minimum soil temperature at planting is 60° (16°C). 7' plants. Intermediate resistance to common rust, northern corn leaf blight, southern corn leaf blight, and Stewart's wilt. Select 2637T (Treated) or 2637 (Untreated). Avg. 3,300 seeds/lb. Packet: 150 seeds.
Johnny's Recommended Substitute
Bicolor super sweet (sh2) with great flavor, for midseason crops.
The best-eating midseason super sweet (sh2) bicolor.
73 Days

Additional Information



CULTURE: Super sweet corn is different from normal sweet corn because it contains a gene called "shrunken-2," or "sh2" for short. Plan to isolate home garden plantings of super sweets 300 feet from non-super sweet varieties or stagger by a 10 day planting date/maturity difference. Extensive crossing will cause toughness in both types. For complete information, please read our technical sheet, Super Sweet Corn Production, formally known as the 10 Golden Rules. Sow 3/4-1" deep, 6-7" apart (or 2 seeds every 9", thinning to 1 plant), rows 30-36" apart. Increase this rate for untreated seeds. Arrange in blocks of at least 4 rows for proper pollination, which is needed for well-filled ears. Successive plantings can be made through early summer; most growers prefer to extend the sweet corn season by planting a few varieties of different maturities.

INSECT PESTS:
Consult your local Extension office for Integrated Pest Management information. Reduce insect pests in the next corn crop by prompt plowing-in or removal and composting of cornstalks after harvest.

HARVEST:
When kernels are full and "milky," generally indicated by a drying and browning of the ear silks. Record the date on which about half the plants show silk. Corn is ready to eat 18-24 days after ear silks first show; the warmer the weather, the sooner you can pick it.
DAYS TO MATURITY: Varies widely with weather conditions and planting dates. Use these figures to compare one variety to another, not to accurately predict maturity on a given day.

AVG. SEEDING RATE:
1M/500', 5M/2,500', 25M/12,500' 30M/acre at 2 seeds/ft. in rows 36" apart.

SEED SPECS:
SEEDS/LB.: Avg. 2,900.

PACKET:
150 seeds, sows 75' at 2 seeds/ft.

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Quick Facts

Latin Name
Zea mays
Days To Maturity
Average number of days from seeding date until ready for harvest.
81 Days
Life Cycle
Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature).
Annual
Disease Resistance Codes
NCLB
Northern Corn Leaf Blight
R
Common Rust
SCLB
Southern Corn Leaf Blight
SW
Stewart’s Wilt
NCLB, R, SCLB, SW
Hybrid Status
Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits.<br>Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next.
Hybrid (F1)