PH26NC

Corn

Variety Description

Variety used for comparison: 'PH4V6'

Summary: For the plants of 'PH26NC', anthesis occurs very early in the season while it occurs early in the season for the plants of 'PH4V6'. From the beginning of anthesis to just before milk development, the brace roots of 'PH26NC' have an absent or very weak intensity of anthocyanin colouration while those of 'PH4V6' have a strong to very strong intensity of anthocyanin colouration. The main axis of the tassel above the highest lateral branch for 'PH26NC' is short to medium in length while it is very short to short for 'PH4V6'. Including the tassel, the plants of 'PH26NC' are shorter than the plants of 'PH4V6'. The leaf blade just above the upper ear of 'PH26NC' is wider than that of 'PH4V6'. Including the kernels, the ears of 'PH26NC' have a smaller diameter than those of 'PH4V6'. The kernel of 'PH26NC' is yellow on the dorsal side while it is yellow orange for 'PH4V6'. On the middle third of the upper most cob, the glumes of 'PH26NC' have a medium intensity of anthocyanin colouration while the glumes of 'PH4V6' have a strong intensity of anthocyanin colouration. The primary ear of 'PH26NC' is located lower on the stem than that of 'PH4V6'.

Description:

PLANT: inbred yellow variety, very small ratio for height of insertion of peduncle of upper ear to plant height, anthesis and silk emergence occur very early in the season
STEM: medium degree of zig-zag, absent or very weak intensity of anthocyanin colouration on brace roots

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

TASSEL: medium number of primary lateral branches, medium density of spikelets on middle third of main branch, main axis above lowest lateral branch medium to long, main axis above highest lateral branch short to medium in length
LATERAL BRANCHES (SECOND BRANCH FROM BOTTOM OF TASSEL): straight, small angle with main axis, medium to long
GLUME: absent or very weak intensity of anthocyanin colouration throughout
ANTHER (ON MIDDLE THIRD OF MAIN BRANCH): weak to medium intensity of anthocyanin colouration

EAR: absent or very weak intensity of anthocyanin colouration of silks, very short to short husk (below tip to level with tip), conico-cylindrical shape, few rows of grain, medium intensity of anthocyanin colouration on glumes of cob
EAR WINGS: present on a medium to high percentage of plants, long
KERNEL: intermediate between flint-like and dent-like type, yellow on top and dorsal side

TILLERING: present on a very low percentage of plants

Origin & Breeding History: 'PH26NC' was developed by Pioneer Hi-Bred International, Inc. using the pedigree method of plant breeding. In 2006, the initial cross was conducted between proprietary inbred lines in Pandorf, Austria. The F1 generation was planted, self pollinated and harvested in bulk in Buin, Chile. Respectively, in 2007 and 2008, the F2 population and F3 families were self pollinated with subsequent ear selection in Moorhead, Minnesota, USA. From 2009 to 2012, F4 to F9 lines were self pollinated with subsequent ear selections. In 2012, the F10 line was self pollinated and the F11 seed bulked as breeder seed in Buin. 'PH26NC' 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.

Tests & Trials: The comparative trial for 'PH26NC' was conducted in Coteau-du-lac, Quebec during the 2019 growing season. The trial was planted in a RCB Design with 3 replicates. Each replicate consisted of one row of approximately 20 plants, 3 metres in length with 76 cm between the rows. There was a total of 50 to 60 plants per variety. Measured characteristics were based on 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 201500260, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.

Comparison tables for 'PH26NC' with reference variety 'PH4V6'

Plant height (including tassel) (metres)

Leaf blade (just above upper ear) (cm)

Ear diameter (in middle including kernels) (cm)

Primary ear, height from ground (metres)

Click on image for larger view

Corn: 'PH26NC' (top) with reference variety 'PH4V6' (bottom)