The Next Generation Creeping Bentgrass is Here. Newer bents vs. existing bents Short bentgrass...
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Transcript of The Next Generation Creeping Bentgrass is Here. Newer bents vs. existing bents Short bentgrass...
The Next Generation Creeping Bentgrass is
Here
Newer bents vs. existing bents• Short bentgrass development history
– Varieties have different attributes – Overall quality is important
• Introduce Independence Creeping bentgrass• Density and management • Trial site ratings and photos• Even newer generation on the way• Video – new construction with
Independence
Bentgrass Development History
• Penncross – 1955– Superintendents have experience managing it– Aggressive, prostrate growth habit– Not as dense as newer varieties– Not as disease tolerant– Not able to withstand Poa encroachment as well– More management issues occurred as
expectations increased and the height of cut was lowered over the years
Bentgrass Development History• PennLinks - 1986
– Originally developed primarily for greens– More upright growth habit
• PennEagle – 1978– Originally developed primarily for fairways– Improvements over Penncross
• Penn A’s & G’s- early 90’s– Much more dense– Designed to handle lower height of cut– More intense management practices
Bentgrass Development History• Southshore, Crenshaw, Providence,Century, SR
1119, Seaside,etc. – All were pretty good varieties when introduced in
80’s –90’s– Some were introduced to fit certain niches
• L-93 – released in mid 90’s– Developed at Rutgers University– Not as dense as new Penn varieties– Good disease resistance– Has become more widely accepted– Being used on fairways, greens, and tees
Independence Development History
• Selected from very large collection of plants from fairways and greens from throughout the species range starting in the early 90’s
• 1996-2000 – crosses and selections made
• Summer 2000- 23 plants selected from several breeder blocks, isolated and cross pollinated
Bentgrass Spaced Plant Nursery
Bentgrass Spaced Plant NurseryDollar Spot trial
Independence Development History
• August 2000 - Breeder seed harvested
• August 2000 – Foundation field planted
• Jan.- March 2001- Plant breeders rougue foundation field
• Resulting in another generation of selection
Independence Development History
• August 2001 – Foundation field harvested and production acres planted
• Fall 2001 – Test plots planted at Universities
• August 2002 – First limited production
• August 2003 – First full crop available
Where can Independence be used?
• Fairways
• Greens
• Tees
• New construction
• Interseeding existing turf
Why is Independence so versatile?
• Medium density allows easier topdressing and management than more dense varieties
• Upright, aggressive growth habit• Medium dark green color blends well
with other bents• Improved Dollar Spot resistance
decreases management costs
Density Comparison(expressed in shoots per sq. inch)
Penncross 87-90
Pennlinks 120-130
Providence 150-160
L-93 220-230
Independence 200-230
Velvet bents 350+
A-4, G-2 370-380
Poa annua 225
2003 NTEP Test
• Planted fall 2003
• First data spring 2005
• Independence Creeping bentgrass
• Declaration Creeping bentgrass
• Legendary Velvet bentgrass
Current Testing Sites(Previous to new NTEP)
• North Carolina State- Dr. Art Bruneau
• Virginia Tech – Dr. Eric Ervin
• Rutgers University – Dr. William Meyer
• CDGA –Dr. Randy Kane
• University of Nebraska – Dr. Bob Shearman
2002 Bentgrass Trial by NC State at CC of North Carolina
Entry Low mow/ no fungicide
Low mow/ with fungicide
High mow/ no fungicide
High mow/with fungicide
Overall mean
Independence 5.9a 6.2a 6.9a 7.1a 6.6a
Penn A-1 5.6ab 5.8ab 6.7a 6.5abc 6.2ab
Penn A-4 5.2b-e 5.1def 6.0b 6.4b-d 5.7bc
L-93 5.4a-d 5.2def 5.8bc 5.9c-e 5.6c
Bengal 5.0c-f 5.4bcd 6.0b 6.1c-e 5.6c
Penn G-6 4.9d-g 5.0def 5.8bc 5.8c-e 5.4c
Penncross 4.4g 4.4hi 4.9d 5.0fg 4.7e
LSD 0.65 0.49 0.60 0.71 0.48
Rutgers University2002 Fairway Creeping bent test VARIETY TURF QUALITY
Independence 6.2
Bengal 6.1
Brighton 4.9
L-93 4.9
Providence 4.7
Southshore 4.6
G-6 4.6
Regent 4.5
Putter 4.3
LSD @ 5% 0.8
Fairway Height bentgrass trials at North Brunswick, NJ established September 2001
Rutgers University2002 Greens Height Creeping bent test
Variety Turf Quality
Independence 5.8
Bengal 5.8
Penn A-2 5.7
Penn A-4 5.5
Penn G-6 4.7
L-93 4.7
Southshore 4.0
Pennlinks 3.7
Penncross 3.0
LSD @ 5% 0.7
Greens height Creeping Sept. 2001 bentgrass trial at North Brunswick, NJ established
Greens height Creeping bentgrass trial at North Brunswick established Sept. 2001, NJ
Greens height Creeping bentgrass trial at North Brunswick, NJ established Sept. 2001
Arrowhead Golf CourseNew Construction
• Independence Creeping bentgrass on greens and tees
• Pennway bent blend on fairways
• Bluegrass sod on greens & tees surrounds
• Winning Colors Tall fescue blend- roughs
• Country Club Links Mix – far roughs
Arrowhead Golf CourseGreen seeded fall 2002
Fall 2002 seeded Independence Green
Fall 2002 seeded Independence green
Tee seeded with Independence using PennMulch
Two week old Independence tee box
Two week old Independence Green
Two week old Independence Green
An even newer generation is coming !
An even newer generation is coming !
Arrowhead Golf CourseAkron, NY
Video detailing use of Independence creeping
bentgrass
The next generation is here !
Questions ?