PH41VW

Corn

Variety Description

Variety used for comparison: 'PH1D84'

Summary: Anthesis for the plants of 'PH41VW' occurs very late in the season whereas that for 'PH1D84' occurs late in the season. Including the tassel, the plants of 'PH41VW' are taller than those of 'PH1D84'. The leaf blade just above the upper ear of 'PH41VW' is wider than that of 'PH1D84'. The middle and apex of the glumes on the tassel of 'PH41VW' have an absent or very weak intensity of anthocyanin colouration whereas those of 'PH1D84' have a weak intensity of anthocyanin colouration. In the middle third of the main branch of the tassel, the anthers of 'PH41VW' have a strong intensity of anthocyanin colouration whereas those of 'PH1D84' have a medium intensity of anthocyanin colouration. The tassels of 'PH41VW' have absent or very few primary lateral branches whereas those of 'PH1D84' have few primary lateral branches. The angle between the main axis and the lateral branches for 'PH41VW' is very small whereas the angle for 'PH1D84' is small. The primary ear of 'PH41VW' is located higher on the stem than that of 'PH1D84'. The percentage of tillering for the plants of 'PH41VW' is low whereas there is none present for 'PH1D84'.

Description:

PLANT: inbred yellow variety, medium ratio of height of insertion of peduncle of upper ear to plant height, anthesis occurs very late in season, silk emergence occurs late in season

STEM: absent or very slight degree of zig-zag, very strong intensity of anthocyanin colouration on brace roots

LEAF BLADE (JUST ABOVE UPPER EAR): medium degree of undulation of margin, very small angle with stem, straight

TASSEL: absent or very few primary lateral branches, medium density of spikelets on middle third of main branch, medium length main axis above lowest lateral branch, long main axis above highest lateral branch
LATERAL BRANCHES: straight, very small angle with main axis
GLUME: absent or very weak intensity of anthocyanin colouration at base, absent or very weak intensity of anthocyanin colouration at apex and middle
ANTHER (ON MIDDLE THIRD OF MAIN BRANCH OF TASSEL): strong intensity of anthocyanin colouration

EAR: absent or very weak intensity of anthocyanin colouration of silks, long husk (extends one third length of ear above tip), conico-cylindrical shape, medium number of rows of grain, absent or very weak intensity of anthocyanin colouration on glumes of cob
EAR WINGS: present on a high percentage of plants, medium length
KERNEL: intermediate type, yellow on top, orange on dorsal side

TILLERING: present on a low percentage of plants

Origin & Breeding History: 'PH41VW' was developed by Pioneer Hi-Bred International, Inc. using a double haploid plant breeding method. In 2009, a cross was conducted between proprietary inbred lines in New Holland, Pennsylvania, USA. In 2010, the F1 generation underwent a haploidization process with subsequent chromosome doubling and selfing. The variety was advanced from the D1 to D3 generation with the lines being self pollinated and the resulting seed harvested in bulk. 'PH41VW' was selected based on tassel size, pollen production, germination ability, stalk lodging resistance, late season plant health, yield in hybrid combination, grain quality, as well as disease and insect resistance. The D5 seed was bulked as breeder seed in Princeton, Illinois, USA in 2012.

Tests & Trials: The comparative trial for 'PH41VW' was conducted in Coteau-du-Lac, Quebec during the 2021 growing season. The trial was planted in a RCB design with 3 replicates. Each replicate consisted of one 3 metre long row with 76 cm between the rows. With approximately 20 plants per row, there was a total of 50 to 60 plants per variety. Measured characteristics were based on a minimum of 26 measurements per variety. Mean differences were significant at the 5% probability level based on Student's T-tests. Results were supported by the official technical examination report 201900151, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.

Comparison tables for 'PH41VW' with reference variety 'PH1D84'

Plant height (metres)

Leaf blade width (cm)

Primary ear height (metres)

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Corn: 'PH41VW' (left) with reference variety 'PH1D84' (right)

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Corn: 'PH41VW' (top) with reference variety 'PH1D84' (bottom)