Low pungency long day onion

a technology of long day onion and pungency, applied in the field of long day onion, can solve the problems of affecting the growth rate of short day varieties, the pungency of short day varieties can climb considerably during storage, and the length of the day cannot be experienced to trigger the bulbing process, etc., and achieve the effect of low pungency

Inactive Publication Date: 2010-01-21
SEMINIS VEGETABLE SEEDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0022]In one aspect, the present invention provides an onion plant requiring about 14 or more, or 14 or more contiguous hours of daylight to initiate bulb formation comprising a bulb having low pungency.

Problems solved by technology

Not all long day length type (long day type) onions are suitable for storage.
If a long day type onion is planted in such a short day climate, it may never experience enough day length to trigger the bulbing process.
Short day varieties do not keep well in storage conditions, and the pungency of short day varieties can climb considerably during storage.

Method used

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  • Low pungency long day onion
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  • Low pungency long day onion

Examples

Experimental program
Comparison scheme
Effect test

example 1

WYL 77-5168B Long Day Onion

[0112]WYL 77-5168B, a long day onion inbred, was developed by mass selection from a synthetic gene pool of Yellow Sweet Spanish onion (synthetic gene pool YSS-715B). Mass selection is the formation of a composite population through selective harvest of individuals among a heterozygous population. See, Burton, G. W. 1990. Enhancing germplasm with mass selection. p. 99-100. In: J. Janick and J. E. Simon (eds.), Advances in new crops. Timber Press, Portland, Oreg.

[0113]Synthetic gene pool YSS-715B was developed from a pool of YSS 53-351 B (50%), and YSS 805 (50%). This pool was created for other phenotypic purposes, with no initial interest with regard to pungency.

[0114]WYL 77-5168B is a Spanish onion line that is large in size, with a round bulb shape and medium colored skin. Tops are medium and somewhat floppy. Storage length of WYL 77-5168B is medium term. Maturity of WYL 77-5168B is full-season for a Spanish type onion.

[0115]Year 1 Mass 1 generation bulbs...

example 2

WYL 77-5128B. Long, Day Onion

[0130]WYL 77-5128B, a long day Spanish onion inbred, was developed by mass selection from a synthetic gene pool of Yellow Sweet Spanish (synthetic gene pool YSS-FR713B).

[0131]Synthetic gene pool YSS-FR713B was developed from a pool of YSS-Giano (50%), YSS 53-351B (25%), and YSS Peckham (25%).

[0132]WYL 77-5128B is a low pungency Spanish onion line, that is medium in size, with a high globe shape and dark colored skin. Tops are large and upright. Storage length of WYL 77-5128B is long term. Maturity of WYL 77-5128B is mid season for a Spanish type onion

[0133]Year 1 Mass 1 generation bulbs were selected from synthetic YSS-FR713B.

[0134]Year 2 Seed was produced on the M1 bulb selection.

[0135]Year 3 Mass 2 generation bulbs were selected from 1996 seed production.

[0136]Year 4 Seed was produced in cage 97-547 from the 1996 M2 bulb selection.

[0137]Year 5 Mass 3 generation bulbs were selected from source 97-547.

[0138]Year 6 Seed was produced from M3 bulb selection...

example 3

Pungency in Storage

[0146]Harvested low pungency long day onions were stored under storage conditions of 5 degrees centigrade and 50% relative humidity for 6 months.

[0147]Tables 1 and 2 below provide raw data for mean PAD measurements after two and six months storage under long term storage conditions on the lines noted above.

TABLE 1History of pungency selection of line WYL 77-5168BMean PADYear 9Year 10Year 11Year 12SourceBulb HarvestBulb HarvestBulb HarvestBulb Harvest00333-1 (original source)4.53 g FW (2)   4.51 g FW (2) (3)6.02 g FW (1)4.70 g FW (1)4.20 g FW (2)3.90 g FW (2)RNR5619 (selection of 00333-1)5.60 g FW (1)4.16 g FW (2)RNR5616-2 (selection of 00333-1)4.09 g FW (1)4.98 g FW (2)RNR5616-3 (selection of 00333-1)5.30 g FW (1)4.24 g FW (2)RNR 5616-7 (selection of 00333-1)5.09 g FW (1)4.12 g FW (2)RNR 5616-12 (selection of 00333-1)4.87 g FW (1)4.91 g FW (2)RNR 5616-15 (selection of 00333-1)5.15 g FW (1)3.28 g FW (2)Vidalia Sweets (SD)9.15 g FW (4)3.34 g FW (4)3.20 g FW (4)Visio...

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Abstract

The present invention includes long-day onion plants comprising bulbs having low pungency and methods for obtaining such onions. The present invention also provides reagents and materials that can be used in the methods for obtaining such onions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation application of U.S. patent application Ser. No. 11 / 486,083, filed Jul. 14, 2006, which claims the benefit of U.S. Provisional Application No. 60 / 813,625, filed Jul. 15, 2005, each of which is herein incorporated by reference.FIELD OF THE INVENTION[0002]The present invention includes long day onions having low pungency and methods for obtaining such onions. The present invention also provides reagents and materials that can be used in the methods for obtaining such onions.BACKGROUND[0003]Onions belong to the lily family, Amaryllidaceae, and the genus, Allium. Alliums comprise a group of perennial herbs having bulbous, onion-scented underground leaves, including such commonly cultivated crops as garlic, chives, and shallots. It also includes ornamental species grown for their flowers.[0004]Onions are an important vegetable world-wide, ranking second among all vegetables in economic importance with an estim...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01G1/00A01G9/02A01C1/00A01G9/00A23L27/14
CPCA23L1/2212A23L27/105A01H6/56A01H6/04A01H6/045A01H1/00A01H5/06
Inventor HENDRICKS, SCOTT
Owner SEMINIS VEGETABLE SEEDS
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