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Texas Hybrid Bluegrass

Texas x Kentucky bluegrass . Many first hybrids poor germinationThermal Blue = HB 129 = BH00-6002Reveille sod type good performanceImproved establishmentHigh shear strengthExcellent rhizomes = good recoveryGood wear tolerance in Ohio - not high RutgersAdditional new hybrids with good establis

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Texas Hybrid Bluegrass

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    1. Texas Hybrid Bluegrass

    3. Bluegrass Needs Improved establishment Less dormancy by selection and large seed Priming? Diverse portfolio of bluegrass types from many programs Heat and drought tolerance, winter-active growth One set of genetics or one type leads to potential problems for long term performance Necrotic ring spot, summer patch and dollar spot resistance. Billbugs major problem in drought.

    4. Bluegrass Strategies Texas X Kentucky bluegrass hybrids Advantages Heat tolerant Drought tolerant Extensive rhizomes - wear tolerance, sod strength, recovery Goals Improved seed fertility - higher yields Improved germination Summer patch, brown patch and leaf spot resistance Reject 3 of 4 potential cultivars

    5. Texas X Kentucky bluegrass Texas bluegrass heat and drought tolerant, extensive and deep rhizomes Kentucky bluegrass turf quality Backcrossed to Kentucky bluegrass More extensive rhizomes Greater heat and drought tolerance Must evaluate for diseases, billbug resistance, germination vigor, apomixis 4 new ones optioned from Rutgers planted fall, 2005

    6. Texas X Kentucky bluegrass Rhizomes on young spaced plants Deep rhizomes contribute to recovery Bluegrass usage further south Top rated for shear strength NTEP

    7. Bandera Texas X Kentucky Improved germination High heat tolerance Active summer growth Need more growth before vernalization for seed

    8. Bandera Texas X Kentucky

    9. STR 2844 Texas X Kentucky Dark Green, high turf quality Cross BDF (Texas X Kentucky) X Midnight Excellent seed set and yields Low ergot Extensive rhizomes

    10. Texas X Kentucky Bluegrasses Blend with tall fescues Heat and drought tolerance Excellent rhizomes Blend with Kentucky bluegrass Select Kentucky bluegrasses with improved heat tolerance Similar growth form Blend with Texas X Kentucky - future Select ones with different genetics

    11. Texas X Kentucky Bluegrasses 2000 Kentucky bluegrass NTEP Drought and Heat Data Bluegrass NJ1 Drought- WY1 Drought- KS Turf OH - Turf Quality UT - Turf quality Variety Type Wilting -2001 Wilting-2002 Quality No irrigation Low maintenance SR 2284 America 6.7 5.0 5.7 6.7 5.4 Midnight Midnight 6.0 7.3 4.6 6.9 5.3 Rampart Julia 4.0 5.3 5.6 3.9 5.2 Kingfisher America 7.0 6.7 5.0 6.8 5.1 Showcase America 7.3 6.0 4.7 6.1 5.0 Quantum Leap Midnight 4.3 7.0 4.3 6.7 5.0 BH 00-6002 (ThBl) Texas hybrid 7.0 5.0 5.0 6.2 4.9 Arcadia Midnight 5.7 6.0 2.3 6.6 4.8 BH 00-6003 Texas hybrid 3.7 6.3 3.9 4.4 4.8 Cheetah Aggressive 5.3 4.3 4.4 6.1 4.7 Ulysses Julia 4.3 6.0 4.4 4.6 4.7 Envicta BVMG 6.7 5.3 3.6 5.7 4.7 LSD@5% 1.6 2.3 3.8 1.2 1.5

    12. 2004 Bluegrass Trial, Rolesville, NC 2005 data, 1-9, 9 = Ideal Turf Cutlivar Mean Cultivar Mean STR 2485 KBG 6.2 Midnight KBG 4.8 STR 23180 KBG 6.0 Julius KBG 4.8 STR 23064 KBG 5.7 Diva KBG 4.7 Bandera T x K 5.6 Rhythm KBG 4.6 Y2K-169 KBG 5.3 Eagleton KBG 3.8 Julia KBG 5.2 A99-LM15 T x K 3.7 SR 2109 KBG 5.0 LSD@5% 0.7

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