PH2G5Z
| Denomination: | 'PH2G5Z' |
|---|---|
| Botanical Name: | Zea mays |
| Applicant/Holder: |
Pioneer Hi-Bred International, Inc. 8305 NW, 62nd Avenue P.O. Box 7060 Johnston, Iowa 50131 United States of America |
| Breeder: |
Gustavo Garcia, Pioneer Hi-Bred Production Company, Woodstock, Ontario Travis Coleman, Pioneer Hi-Bred Production Company, Lethbridge County, Alberta |
| Agent in Canada: |
Pioneer Hi-Bred Production Co. 240, 115 Quarry Park Road SE Calgary, Alberta T2C 5G9 Canada Tel: 403-440-2988 |
| Application Date: | 2018-05-07 |
| Provisional Protection:: | 2018-05-07 |
| Application Number: | 18-9469 |
| Grant of Rights Date: | 2021-06-28 |
| Certificate Number: | 6439 |
| Grant of Rights Termination Date: | 2041-06-28 |
Variety Description
Variety used for comparison: 'PHWPD'
Summary: The ear of 'PH2G5Z' is shorter than the ear of 'PHWPD'. The ear of 'PH2G5Z' has a larger diameter than the ear of 'PHWPD'. The primary ear on the stem of 'PH2G5Z' is located higher on the stem than it is for 'PHWPD'.
Description:
PLANT: inbred yellow variety, none with ear wings
STEM: absent or very weak intensity of anthocyanin colouration on brace roots
TASSEL: anthesis occurs mid season, small angle between main axis and lateral branches, moderately dense spikelets, medium to long main axis above lowest lateral branch, short to medium length main axis above highest lateral branch
LATERAL BRANCHES: medium number of primary lateral branches on main axis of tassel, straight
GLUME: absent or very weak intensity of anthocyanin colouration at base, medium intensity of anthocyanin colouration at apex and middle
ANTHER: absent or very weak intensity of anthocyanin colouration
EAR: mid season silk emergence, strong intensity of anthocyanin colouration of silks, short husk (level with tip), conico-cylindrical shape, medium intensity of anthocyanin colouration on glumes of cob
KERNEL: dent-like type, yellow on top side and dorsal side
Origin & Breeding History: 'PH2G5Z' was developed by Pioneer Hi-Bred International, Inc. from a cross between proprietary inbred lines made in 2007 in Mankato, Minnesota, USA using a double haploid plant breeding method. In 2008, the F1 generation underwent a haploidization process. The haploids were doubled, self-pollinated and ears were selected, also in 2008. From 2009 to 2011, the subsequent D1 to D3 generations were self-pollinated and harvested in bulk. 'PH2G5Z' was selected in 2012 based on yield per se, yield in hybrid combination, tassel size, pollen production, stalk lodging resistance, late season plant health, grain quality, as well as disease and insect resistance. Yield trials were grown in Woodstock, Ontario and other Pioneer research locations in Canada and the USA.
Tests & Trials: The comparative trial for 'PH2G5Z' was conducted in Woodstock, Ontario during the 2018 growing season. The trial was planted in a complete randomized design with 3 replicates. Plots consisted of one row 3 metres in length and a row spacing of 76 cm. Each plot contained approximately 20 plants resulting in a total of 50 to 60 plants per variety. Measured characteristics were based on a minimum of 30 measurements. 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 201800242, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.
Comparison tables for 'PH2G5Z' with reference variety 'PHWPD'
Ear length (cm)
| 'PH2G5Z' | 'PHWPD' | |
|---|---|---|
| mean | 15.6 | 16.5 |
| std. deviation | 0.88 | 0.72 |
Ear diameter (including kernels) (cm)
| 'PH2G5Z' | 'PHWPD' | |
|---|---|---|
| mean | 4.4 | 4.3 |
| std. deviation | 0.13 | 0.14 |
Primary ear, height from ground (metres)
| 'PH2G5Z' | 'PHWPD' | |
|---|---|---|
| mean | 0.91 | 0.85 |
| std. deviation | 0.09 | 0.10 |
Click on image for larger view
Corn: 'PH2G5Z' (right) with reference variety 'PHWPD' (left)
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Corn: 'PH2G5Z'
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Corn: Reference variety 'PHWPD'
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