4PNJV24A

Canola

Variety Description

Variety used for comparison: 'NS6184BR'

Summary: The time of flowering occurs earlier for the plants of ‘4PNJV24A' than those of ‘NS6184BR'. ‘4PNJV24A' has a shorter silique beak than ‘NS6184BR'.

Description:

PLANT: male sterile inbred line, open pollinated spring type, medium height at maturity

COTYLEDON: medium width

LEAF: medium green, very few to few lobes, rounded margin, shallow to medium depth of margin indentations, short to medium length, narrow to medium width, short to medium length petiole

FLOWER PETAL: yellow, touching petal spacing
ANTHER: pollen production absent

SILIQUE: semi-erect attitude, short, wide, short to medium length beak, short pedicel

Origin & Breeding History: ‘4PNJV24A' is a male sterile inbred line developed by Pioneer Hi-Bred International, Inc. using a backcross method of plant breeding. The variety originated from a direct conversion of a proprietary inbred line to eliminate the Round-up tolerance gene (RT73) with backcrossing initiated in the winter of 2010 in Caledon, Ontario, Canada. In 2011, the BC3S1 plants were screened for the race-specific disease resistance molecular markers (RlmS and LepR3) and seedling resistance. The selected BC3 selfed progeny were then selfed multiple times with one BC4 line selected and designated as ‘4PNJV24A' in 2014 based on plant vigour, time of flowering and pod development, glucosinolate levels, saturated fats, and oil content. Breeder seed production commenced in 2022.

Tests & Trials: The comparative trials for ‘4PNJV24A' were conducted during the 2022 and 2023 growing seasons in Saskatoon, Saskatchewan. The trial included 3 replicates. The candidate and reference variety were sown side by side in the first replicate whereas varieties in the second and third replicate were completely randomized. The plots consisted of 2 rows that were 3 metres in length with spacing of 50 cm between rows. The planting density of 26 seeds per metre resulted in a total of 468 plants per variety per year. The measured characteristics were based on 30 measurements per variety per year except for silique characteristics which were based on 60 measurements per variety per year. Mean differences were significant at the 2% probability level based on LSD values.

Comparison tables for '4PNJV24A' with reference variety 'NS6184BR'

Days to flowering (number of days from planting to when 50% of plants have one or more open flowers)

Beak length (mm)

Click on image for larger view

Canola: ‘4PNJV24A' (left) with reference variety ‘NS6184BR' (right)

Click on image for larger view

Canola: ‘4PNJV24A' (left) with reference variety ‘NS6184BR' (right)