DK1614-12 NHT


Denomination: 'DK1614-12 NHT'
Botanical Name: Brassica napus
Applicant/Holder: Norddeutsche Pflanzenzücht
Hans-Georg Lembke KG
Hohenlieth, D-24363
Breeder: Olaf Sass, Norddeutsche Pflanzenzücht, Holtsee, Germany
Agent in Canada: DL Seeds Inc.
P.O. Box 2499
25028 Road 17N
Morden, Manitoba
R6M 1C2
Tel: 204-331-3611
Application Date: 2016-05-27
Application Number: 16-8937

Variety Description

Varieties used for comparison: '6080 RR' and 'DK1609-12 NHT'

Summary: The cotyledon of 'DK1614-12 NHT' is longer than that of 'DK1609-12 NHT'. The leaf margin of 'DK1614-12 NHT' is sharp whereas it is rounded for '6080 RR'. The leaf and petiole of 'DK1614-12 NHT'are shorter than those of 'DK1609-12 NHT'. 'DK1614-12 NHT' flowers and matures earlier than 'DK1609-12 NHT'.


PLANT: male fertile inbred line, spring type, medium to tall at maturity

COTYLEDON: wide, medium length

LEAF: medium green, medium number of lobes, sharp margin, low to medium density of medium to deep margin dentations, medium length and width, medium length petiole

FLOWER PETAL: yellow, touching

SILIQUE: horizontal attitude, medium to long, medium width, medium to long beak, medium to long pedicel

SEED COAT: predominantly black

AGRONOMIC CHARACTERISTICS: medium to good resistance to lodging
QUALITY CHARACTERISTICS: low erucic acid, low glucosinolates
DISEASE REACTIONS: resistant to Blackleg (Leptosphaeria maculans asexual stage: Phoma lingam) and Fusarium wilt (Fusarium oxysporum)

Origin & Breeding History: 'DK1614-12 NHT' is a male fertile line originating from a cross made in 2008 at the Norddeutsche Pflanzenzucht breeding station in Hohenlieth, Germany between proprietary experimental lines. The F1 to F4 generations were produced using pedigree selection. The selection criteria included vigour, flowering, plant height, maturity, lodging resistance, seed yield, as well as oil, protein, glucosinolate and saturated fatty acid content. F4 single plant progenies were sent to Canada for agronomic and quality evaluations along with testing for blackleg resistance.

Tests & Trials: The comparative trials conducted during the 2015 and 2016 growing seasons at the DL Seeds Sun Valley Research Station in Morden, Manitoba were set up in a RCB Design with 4 replications per variety. Each year, the plots consisted of 6 rows that were 6 metres in length with a spacing of 15 cm between rows and 60 cm between plots. The measured characteristics were based on 30 measurements of the cotyledon, leaf, flower and plant height and 60 measurements of the silique. The means were based on a two year average. Mean differences were significant at the 2% probability level based on LSD values.

Comparison tables for 'DK1614-12 NHT' with reference varieties '6080 RR' and 'DK1609-12 NHT'

Cotyledon length (mm)

  'DK1614-12 NHT' '6080 RR' 'DK1609-12 NHT'
mean (LSD=1.02) 12.03 11.54 10.40
std. deviation 1.53 1.41 1.06

Leaf length (cm)

  'DK1614-12 NHT' '6080 RR' 'DK1609-12 NHT'
mean (LSD=4.59) 26.8 28.6 35.5
std. deviation 4.4 4.4 5.7

Petiole length (cm)

  'DK1614-12 NHT' '6080 RR' 'DK1609-12 NHT'
mean (LSD=5.10) 16.8 16.4 25.1
std. deviation 3.5 2.8 5.5

Days to flowering

  'DK1614-12 NHT' '6080 RR' 'DK1609-12 NHT'
mean 41 39 47

Days to maturity

  'DK1614-12 NHT' '6080 RR' 'DK1609-12 NHT'
mean 88 86 91

Click on image for larger view
DK1614-12 NHT
Canola: 'DK1614-12 NHT' (left) with reference variety 'DK1609-12 NHT' (right)

Click on image for larger view
DK1614-12 NHT
Canola: 'DK1614-12 NHT' (top) with reference varieties '6080 RR' (bottom left) and 'DK1609-12 NHT' (bottom right)

Date modified: