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Denomination: '93Y05'
Botanical Name: Glycine max
Applicant/Holder: Pioneer Hi-Bred International, Inc.
8305 NW 62nd Avenue
P.O. Box 7060
Johnston, Iowa
United States of America
Breeder: Paul Stephens, Pioneer Hi-Bred International, Inc., Princeton, United States of America
Agent in Canada: Pioneer Hi-Bred Production Co.
24th Floor, 215 2nd Street SW
Calgary, Alberta
T2P 1M4
Tel: 403-440-2988
Application Date: 2010-05-03
Application Number: 10-6970
Grant of Rights Date: 2013-07-22
Certificate Number: 4577
Grant of Rights Termination Date: 2031-07-22

Variety Description

Varieties used for comparison: '92Y80', '93Y20', '93Y02' and 'RJS 31004'

Summary: '93Y05' has a weak intensity of anthocyanin colouration of the hypocotyl while it is strong for '92Y80' and '93Y20'. '93Y05' flowers later than '92Y80' and '93Y20'. The plant height of '93Y05' is slightly shorter than '93Y20' and 'RJS31004'. '93Y05' has a greater 100 seed weight than 'RJS31004'. The hilum of '93Y05' is black while it is dark brown for '92Y80'. '93Y05' matures later than '92Y80', '93Y20' and '93Y02'. The protein content of the seed of '93Y05' is less than '92Y80'.


HYPOCOTYL: weak intensity of anthocyanin colouration present

PLANT: oilseed type, indeterminate growth type, erect to semi-erect growth habit, light tawny pubescence

LEAF: medium green colour, pointed ovate lateral leaflet, medium blistering

FLOWER: violet

POD: brown
SEED: spherical flattened shape, very weak to weak glossiness, yellow ground colour of testa
HILUM: black, small to medium size, normal abscission layer

AGRONOMICS: 3275 heat unit rating, fair to good resistance to lodging

QUALITY CHARACTERISTICS: 37.6 % protein, 22.5 % oil

Origin & Breeding History: '93Y05' is the result of a cross between 92B12 x 93M51 that occurred in 2003 in Iowa. Bulk, modified single seed descent and single plant selection methods were used in developing the variety. It was evaluated in yield test nurseries from 2005 to 2009. Contra season nurseries were used to advance the development of the variety. Selection criteria included yield, maturity and pest and disease resistance.

Tests & Trials: Tests and trials were conducted during the 2010 growing season in Wallaceburg, Ontario. Plots consisted of 2 rows with a row length of 3.8 meters and a row spacing of 76.2 cm. There were 3 replications. Tests and trials were supported by the purchased test report number 201000119 from the Plant Variety Protection Office, Beltsville, Maryland, USA.

Comparison tables for '93Y05' with reference varieties '92Y80', '93Y20', '93Y02' and 'RJS 31004'

Days to flowering

  '93Y05' '92Y80' '93Y20' '93Y02' 'RJS 31004'
mean 52 49 50 51 53

Plant height (when 50% of pods are ripe) (cm)

  '93Y05' '92Y80' '93Y20' '93Y02' 'RJS 31004'
mean 107.5 107.1 119.9 105.8 112.4
std. deviation 4.53 5.19 4.49 4.45 4.57

100 seed weight (mature seed at 13-15% moisture) (grams)

  '93Y05' '92Y80' '93Y20' '93Y02' 'RJS 31004'
mean 18.0 16.5 17.2 16.3 15.8

Days to maturity

  '93Y05' '92Y80' '93Y20' '93Y02' 'RJS 31004'
mean 122 118 120 120 122

Protein content of the seed (%)

  '93Y05' '92Y80' '93Y20' '93Y02' 'RJS 31004'
mean 37.6 40.1 37.2 38.4 36.5

Click on image for larger view
Soybean: '93Y05' (centre) with reference varieties '92Y80' (top left), '93Y20' (top right), 'RJS31004' (bottom left) and '93Y02' (bottom right)

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