2ZBSS1001

Corn

Variety Description

Variety used for comparison: 'PH18F6'

Summary: The leaf blade just above the upper ear of '2ZBSS1001' has a medium degree of undulation of the margin whereas that of 'PH18F6' has strong undulation of the margin. The apex and middle of the glumes on the tassel of '2ZBSS1001' have a medium intensity of anthocyanin colouration whereas those of 'PH18F6' have absent or very weak intensity of anthocyanin colouration. In the middle third of the main branch of the tassel, the anthers of '2ZBSS1001' have absent or very weak intensity of anthocyanin colouration whereas those ofr 'PH18F6' have medium intensity of anthocyanin colouration. The main axis above the lowest lateral branch of the tassel of '2ZBSS1001' is very short whereas that of 'PH18F6' is long. The main axis above the highest lateral branch of the tassel of '2ZBSS1001' is short whereas that of 'PH18F6' is long. The lateral branches on the tassel of '2ZBSS1001' are short whereas those of 'PH18F6' are long. The primary ear of '2ZBSS1001' is located higher on the stem than that of 'PH18F6'. The ear of '2ZBSS1001' is shorter, and including the kernels, has a smaller diameter than that of 'PH18F6'.

Description:

PLANT: inbred yellow variety, large ratio of height of insertion of peduncle of upper ear to plant height, anthesis and silk emergence occur 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, small angle with stem, slightly recurved

TASSEL: few number of primary lateral branches, medium density of spikelets on middle third of main branch, very short main axis above lowest lateral branch, short main axis above highest lateral branch
LATERAL BRANCHES: straight, medium 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: absent or very weak intensity of anthocyanin colouration of silks, medium length husk (extends one quarter length of ear above tip), 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 medium percentage of plants, short
KERNEL: intermediate type, yellow on top, yellow orange on dorsal side

TILLERING: present on a low percentage of plants

Origin & Breeding History: '2ZBSS1001' was developed by Agrigenetics, Inc. using a pedigree method of plant breeding. In 2006, a three-way cross was conducted between proprietary inbred lines in Arlington, Wisconsin, USA. Selected F1 ears were selfed with subsequent ear to row selections conducted from the F2 to F6 generations with final selections being conducted in 2010. '2ZBSS1001' 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 F8 seed was bulked as breeder seed in Arlington, Wisconsin, USA in 2011.

Tests & Trials: The comparative trial for '2ZBSS1001' 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 Student's T-tests. Results were supported by the official technical examination report 202000303, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.

Comparison tables for '2ZBSS1001' with reference variety 'PH18F6'

Primary ear height (metres)

Ear length (cm)

Ear diameter (including kernels) (cm)

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Corn: '2ZBSS1001' (left) with reference variety 'PH18F6' (right)

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Corn: '2ZBSS1001' (top) with reference variety 'PH18F6' (bottom)