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- W357004683 abstract "Introduction. The 2,000 acres of onions (Allium cepa L.) grown for seed annually in the U. S. produces an average of slightly less than 500 pounds of seed per acre. Much of it is hybrid seed from male -sterile lants in adjacent p adjac or in rows that are several rows away. Seed for southern types the so -called short -day onions, is grown in southern California and southwestern Arizona. Seed for northern types, or long -day onions, is grown primarily in Idaho, Oregon, Washington and Northern California. This seed is used throughout the United States to plant 100,000 acres of bulb, or green onions, with a farm value of $100 million ( USDA, 1969) . Onion seed production is generally During 1969 and 1970 commercial onion seed fields were visited in Yuma County to determine why some growers have seed crop failures. Planting. The planting method for onion seed production varies depending on whether open pollinated, or hybrid, seed is to be produced. It varies also as to whether it was planted by seed or bulbs. Onion seeds are planted on 42 inch beds in two rows, twelve inches apart on each bed. The bulbs are planted in one row on the center of each bed. Open pollinated varieties are grown from either seed or bulbs. Hybrid seed is usually obtained from male sterile plants grown from seed and crossed with male -fertile plants grown" @default.
- W357004683 created "2016-06-24" @default.
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- W357004683 date "1971-01-01" @default.
- W357004683 modified "2023-09-24" @default.
- W357004683 title "Onion Seed Production in Yuma County" @default.
- W357004683 hasPublicationYear "1971" @default.
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