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4599695

Soybean

Denomination: '4599695'
Previously Proposed Denomination: '31-53R'
Botanical Name: Glycine max
Applicant/Holder: Monsanto Canada Inc.
5192 Jones Baseline
R.R. # 4
Guelph, Ontario
N1H 6J1
Canada
Breeder: Alejandro Hernandez, Monsanto Canada Inc., Guelph, Ontario
Application Date: 2007-04-05
Application Number: 07-5851
Date Withdrawn: 2010-08-17

Variety Description

Variety used for comparison: 'PS90NRR'

Summary: '4599695' flowers later than 'PS90NRR'. '4599695' is taller and matures later than 'PS90NRR'. The 100 seed weight of '4599695' is less than 'PS90NRR'.

Description:

PLANT: indeterminate growth type, grey coloured hairs on middle third of stem, weak anthocyanin colouration of the hypocotyl, heat unit rating 3175

LEAF: lateral leaflet rounded ovate shape

FLOWER: purple

POD: brown
SEED: spherical rounded shape, medium size, dull seed coat lustre, yellow testa, imperfect black hilum

AGRONOMICS: good resistance to shattering

DISEASE RESISTANCE: resistant to Phytophthora rot (Phytopthora megasperma f. sp. glycinea, races 1-3, 6-11, 13, 15, 17, 21, 23, 24, 26, 28, 29, 30, 32, 34, 36, 38), moderately resistant to soybean cyst nematode (Heterodera glycines)

HERBICIDE RESISTANCE: tolerant to glyphosate

Origin & Breeding History: '4599695' (previously known as 31-53R) is the result of a cross made in 1999 between A3469 and DKB26-52 at Ames, Iowa. The F1 and F2 populations were grown at Isabella, Puerto Rico and advanced using modified single seed descent. The F3 population was grown in bulk at Ames, Iowa and advanced using modified single seed descent. The F3 derived F4's were grown at Ames, Iowa in progeny rows and the variety '31-53R' was selected based on the agronomic characteristics, including, but not limited to, general plant health, lodging, early emergence, and general disease resistance.

Tests & Trials: Tests and trials were conducted during the summers of 2007 and 2008 in Guelph, Ontario. There were two replicates arranged in a randomized complete block design where first repetition in entry order was used. Each plot consisted of 216 seeds planted in two rows. Rows were spaced 80 cm apart and were 4 meters in length.


Comparison tables for '4599695' with reference variety 'PS90NRR'

Days to flowering

  '4599695' 'PS90NRR'
mean 45 43

Plant height (cm)

  '4599695' 'PS90NRR'
mean 86.7 79.1
std. deviation 0.317 0.889

Seeds weight (grams/100 seed)

  '4599695' 'PS90NRR'
mean 13.7 17.3

Days to maturity

  '4599695' 'PS90NRR'
mean 123.9 120.1
std. deviation 5.0 6.09

Click on image for larger view
4599695
Soybean: '4599695' (left) with reference variety 'PS90NRR' (right)

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