PH47GV

Corn

Variety Description

Variety used for comparison: 'PH1380'

Summary: Anthesis for the plants of 'PH47GV' occurs mid season whereas that for 'PH1380' occurs late in the season. Including the tassel, the plants of 'PH47GV' are shorter than those of 'PH1380'. The ratio of height of insertion of the peduncle of the upper ear to the plant height for 'PH47GV' is medium whereas that for 'PH1380' is large. The leaf blade just above the upper ear of 'PH47GV' is narrower than that of 'PH1380'. The main axis above the lowest lateral branch on the tassel of 'PH47GV' is short whereas for 'PH1380' it is a medium length. The main axis above the highest lateral branch on the tassel of 'PH47GV' is a medium length whereas that for 'PH1380' is short. The tassels of 'PH47GV' have few primary lateral branches whereas those of 'PH1380' have a medium number of primary lateral branches. The apex and middle of the glumes on the tassel of 'PH47GV' have a medium intensity of anthocyanin colouration whereas those of 'PH1380' have a strong intensity of anthocyanin colouration. The primary ear of 'PH47GV' is located lower on the stem than that of 'PH1380'. Including the kernels, the ear of 'PH47GV' has a smaller diameter than that of 'PH1380'. The silks of 'PH47GV' have a strong intensity of anthocyanin colouration whereas the silks of 'PH1380' have a medium intensity of anthocyanin colouration.

Description:

PLANT: inbred yellow variety, medium ratio of height of insertion of peduncle of upper ear to plant height, anthesis and silk emergence occur mid season

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

LEAF BLADE (JUST ABOVE UPPER EAR): strong undulation of margin, small angle with stem, slightly recurved

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

EAR: strong intensity of anthocyanin colouration of silks, short husk (level with tip), conico-cylindrical shape, medium number of rows of grain, medium intensity of anthocyanin colouration on glumes of cob
EAR WINGS: present on a medium percentage of plants, medium length
KERNEL: flint-like type, yellow on top, yellow orange on dorsal side

TILLERING: present on a low percentage of plants

Origin & Breeding History: 'PH47GV' was developed by Pioneer Hi-Bred International, Inc. using a double haploid plant breeding method. In 2010, a cross was conducted between proprietary inbred lines in Buin, Chile. In 2011, the F1 generation underwent a haploidization process with subsequent chromosome doubling and selfing. In 2012, selected D1 lines were self pollinated and harvested in bulk. From 2012 to 2014, the D2 to D4 lines were self pollinated with subsequent ear selections, respectively. 'PH47GV'' 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 D6 seed was bulked as breeder seed in Janesville, Wisconsin, USA in 2015.

Tests & Trials: The comparative trial for 'PH47GV' 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 30 measurements per variety. Mean differences were significant at the 5% probability level based on paired Student's T-tests. Results were supported by the official technical examination report 202000328, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.

Comparison tables for 'PH47GV' with reference variety 'PH1380'

Plant height (metres)

Leaf blade width (cm)

Primary ear height (metres)

Ear diameter (including kernels) (cm)

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Corn: 'PH47GV' (left) with reference variety 'PH1380' (right)

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Corn: 'PH47GV' (top) with reference variety 'PH1380' (bottom)