xt70gb1xf774 https://exploreuk.uky.edu/dips/xt70gb1xf774/data/mets.xml   Kentucky Agricultural Experiment Station.  journals kaes_circulars_004_601 English Lexington : The Service, 1913-1958. Contact the Special Collections Research Center for information regarding rights and use of this collection. Kentucky Agricultural Experiment Station Circular (Kentucky Agricultural Experiment Station) n. 601 text Circular (Kentucky Agricultural Experiment Station) n. 601  2014 true xt70gb1xf774 section xt70gb1xf774 IMPROVED PALATABILITY
Circulrxr 601
By Robert C.BUCI·i11CF2lX1LII>SlllI B. ]%u1‘1‘us,II
UNIVERSITY OE KENTUCKY
AGRICULTURAL EXPERIIVIENT STATION
- Department of Agronomy
Lexington

 `
\ V

 Kenwell Tall Fescue
Characteristics and Management]
ROBERT C. BUCKNER and PAUL B. BURRUS, IIB
‘ , In recent years palatability of pasture grasses has become recognized
_ as an important quality, especially in grasses in complex pasture mix-
tures. The more palatable grasses in such mixtures are consumed more
readily by grazing livestock, with the result that they are less competitive
than the other grasses and gradually tend to go out ot the pasture I
I stand. Improvement of palatability in species considered low in this
- * characteristic would make those species, or varieties of those species,
more compatible with other species in such complex pasture mixtures.
Also, as coinparcd with unimproved varieties of species low in palat-
ability, varieties with improved palatability might be better eonsuined
when seeded alone or in relatively simple pasture mixtures.
;\lthough tall teseue (ltestiiea (lTll7I.(Ii7I(ICCIl(llll}. taiiycrsity ol l·§<·iitrnky .\I[l`It‘\lliIIl.ll ldxpcriiricnt Station.
2 lt<·s¤·arcli .’\L[tAt7II()ttlI\I and .\ssoci.it¤· l’roI··~s¤·r. and t.\gcntl ltcsczirr Ii \gio
‘ noniist and .-`issistziiit l’rotcssor. (Zrops lt¤·se~.1r<·li l)iyi~~ioii. .·\gririiltur.il It#·s·~.·r»ln
Scryicc. ti.S. I)I‘t\.tI`IIIlI‘tti ’1i`;\U_`I`IIIlIItlI`t‘. and I iiiyciwity ot l·{<-iitiicley \#;ii··ult¤ir.t|
lixpcrinicnt Station. rcspr-ttiy·ly.

 numerous varieties in the summer and fall. Kenwell was significantly t -
better grazed than commercial varieties during each grazing period
('l`able 1). _
Table l.-— Comparison of Kenwell, and Ky. 3`l tall fescue varieties for palatability V 4
to cattle when graxed free-choice in 4 separate tests during a period of 6 years.
The varieties were established in sod plots.
· r<..i;r·, :,.:;i;t·r:;;;i 
Year Test \Nas Crazedl
 
Variety 1958 1959 1960 1961 1962 1963 `
Ky. 31 ................................ 7.2 7.0 7.5 8.1 8.0 8.0 ‘
Kcmvell .............................. 3.5 2.9 2.5 4.6 4.8 3.5
L.S.l).! at .01 .................... 1.9 1.4 1.7 2.4 ....   V
·l·`iguri·s are averages of 2 grazing periods, using an index of 1 for best grazed and 9
lor ongrazed plots.
J Least significant rliili·r¤·nc<·. `
Relative palatability of Kenwell and Ky. 31 varieties was deter- i
mined in one test by sampling a portion of the varieties before and
after grazing to obtain dry matter consumption. Results from the test, c
repeatedly grazed for a 2-year period, showed that cattle consumed 44
percent more dry matter of Keuwell than of Ky. 31 when the animals
were given free choice of both varieties.
Although Keuyvell is not generally considered to be so robust or
so strongly competitive as the Ky. 31 variety, it is considered satisfactory
in those characteristics. A comparison of the two varieties for yield
is shovvn in 'l'ablc Z. .
Table 2.-—-Tons of dry matter per acre harvested at Lexington, Kentucky, from
pure stands when in full bloom plus aftermath harvests. Varieties received 33
pounds per acre of nitrogen in March, June, and September each year.
V 7 W 7 if WWTF Twin K Ye; of llarvest K K
\'.n·n·ty 19611 19622 19633
lKt’Il\\'l'll ....................,...... . .................. . .......,.....   2.4 1.9 1.1 R
Ky. Gl ............................. . .................................... 2.4 2.0 1.1
.\x·r.i:¤· yields trom tests sverlr-1l]. l3roniacil at the rate
recommended steriliycs the soil for a period of approximately one year.
Dalapon is a translocated herbicide that does not sterilixe the soil yvhen
used at recommended rates. l3roinacil should be applied at the rate
of l2t,»/Q pounds per acre (S ounces per l,(lUfl square foot) of the SU"},
· yvettable poyvder. 'l`he dalapon grass killer should be used at the rate
of 27 pounds per acre (ll ounces per 1,000 square foot) of the t$3',’~],
yvettable poyvder. Use approximately 3f) to 30 gallons of vvater per
acre to adequately yvet the foliage. 'l`all fescue should be sprayed yyith
either bromacil or dalapon sometime during .·\pril for optinnnn effec
tiveness.
iilo sinipliljv mh iwiation in this pnlrliratioir. ir.rrorli1¤ls
not llrlllli rl.
I

 CERTIFICATION
'lhe Kenvvell variety will have seed produced on a limited generation
basis. Classes of seed are: (1) breeder, (2) foundation, (3) registered, _—
and (4) certified. 'l'he foundation and registered classes of seed will
be used to produce certified seed. 'l'he certified elass of seed can be `
planted for forage purposes onlv, and cannot be used to grow certified
seed.
Information regarding certification requirements for the produc-
tion of certified seed of Kenwell tall fcscue may be obtained from the
Kentucky Seed Improvement Association, 929 South Limestone Street,
Lexington Kentucky, 40503. ·
;:\i,.»i—s ·