QUARTZ - WINTER OILSEED RAPE (Brassica Napus L emend)

Abstract

Quartz is a variety of winter oilseed rape that arose from a long-term breeding program focused on key output traits of (1) winter survival, (2) seed yield and (3) financial return for farmers in this order. Breeding objectives were restricted to these 3 so as these traits could be quickly identified.

Claims

1- Quartz has a unique growth habit that confers adaptation to continental type climates such as the central US plains, especially due to its excellent winter hardiness.

2- Having delivered some remarkable on-farm performance over the years, Quartz remains a popular variety with farmers in regions of the world growing winter oilseed rape (Winter Canola)

3- Quartz, is a winter oilseed rape that offers very balanced agronomical traits. A vigorous growth habit from the start, his medium stiff straw makes it easy to harvest. Quartz offers outstanding resistance for both phoma and lodging. It also possess a good oil content.

4- Reliable performance in US University and Private Trials. Quartz has shown very good yield results in the trial network organized by Michael J. Stamm from the Kansas State University (see attached results)

Description

[0003] Please find below its description

TABLE-US-00001 Variety denomination Quartz Species Winter Oilseed rape Botanical name of taxon Brassica napus L emend Information on origin of the variety Astrid x 99EA081 Breeding method Dihaploid Place of discovery North of France Characters descriptions States of Expression Seed-erucic acid Absent Seed cotyledon-length Medium Seed cotyledon-width Medium to broad Seed cotyledon-lope separation Medium to broad Seed cotyledon-saddle depth Medium to deep Seed cotyledon-width/length Medium to large Seed cotyledon-lope separation/saddle depth Small to medium Leaf-green color Medium to dark Leaf-glaucosity Present Leaf-development of lobes Present Leaf-number of lobes Medium Leaf-dentation of margin Medium to strong Time of flowering Medium Flower-color of petals Yellow Flower-Length of petals Medium Flower-width of petals Medium Production of pollen Present Plant-height at full flowering Medium Plant-total length including side branches Medium Top shoot-length Medium Siliqua-length (between peduncle and beak) Short to medium Siliqua-width Narrow to medium Siliqua-length/width Medium Siliqua-length of beak Short to medium Siliqua-length of peduncle Medium

[0004] The rapeseed Quartz has been bread using the Double Haploid methods. This process involves obtaining haploid plants from reproductive cell-bearing organs, called male or female gametophytes, and returning to the diploid phase.