3ZBJL3942

Corn

Variety Description

Variety used for comparison: 'PH17BT'

Summary: Anthesis and silk emergence for the plants of '3ZBJL3942' occurs mid season whereas for 'PH17BT' they occur very late. Including the tassels, the plants of '3ZNJL3942' are shorter than those of 'PH17BT'. The leaf blade just above the upper ear of '3ZBJL3942' is narrower than that of 'PH17BT'. In the middle third of the main branch of the tassel, the anthers of '3ZBJL3942' have medium intensity of anthocyanin colouration whereas those of 'PH17BT' have absent or very weak intensity of anthocyanin colouration. The angle between the main axis and the lateral branches of the tassel of '3ZBJL3942' is large whereas for 'PH17BT' it is very small. The lateral branches of the tassel of '3ZBJL3942' are strongly recurved whereas those of 'PH17BT' are straight. The ear of '3ZBJL3942' is longer than that of 'PH17BT'. Including the kernels, the ear of '3ZBJL3942' has a smaller diameter than that of 'PH17BT'. The silks of '3ZBJL3942' have very strong intensity of anthocyanin colouration whereas those of 'PH17BT' have medium intensity of anthocyanin colouration.

Description:

PLANT: inbred yellow variety, large 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, strong intensity of anthocyanin colouration on brace roots

LEAF BLADE (JUST ABOVE UPPER EAR): strong 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, short main axes above lowest and highest lateral branches
LATERAL BRANCHES: strongly recurved, large angle with main axis, medium length
GLUME: absent or very weak intensity of anthocyanin colouration at base, weak intensity of anthocyanin colouration at apex and middle
ANTHER (ON MIDDLE THIRD OF MAIN BRANCH OF TASSEL): medium intensity of anthocyanin colouration

EAR: very strong intensity of anthocyanin colouration of silks, medium length husk (extends one quarter length of ear above tip), conico-cylindrical shape, medium number of rows of grain, medium intensity of anthocyanin colouration on glumes of cob
EAR WINGS: none
KERNEL: dent-like type, yellow on top, yellow orange on dorsal side

TILLERING: none

Origin & Breeding History: '3ZBJL3942' was developed by Agrigenetics, Inc. using a pedigree method of plant breeding. In 2007, a three-way cross was conducted between proprietary inbred lines in St. Mary`s, Ontario, Canada. Selected F1 ears were selfed with subsequent ear to row selections conducted from the F2 to F4 generations with final selections conducted in 2011. '3ZBJL3942' 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 F5 seed was bulked as breeder seed in St. Marys, Ontario, Canada in 2012.

Tests & Trials: The comparative trial for '3ZBJL3942' 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 20 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 202000305, purchased from the Plant Variety Protection Office in Washington, District of Columbia, USA.

Comparison tables for '3ZBJL3942' with reference variety 'PH17BT'

Plant height (metres)

Leaf blade width (cm)

Ear length (cm)

Ear diameter (including kernels) (cm)

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Corn: '3ZBJL3942' (left) with reference variety 'PH17BT' (right)

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Corn: '3ZBJL3942' (top) with reference variety 'PH17BT' (bottom)