Home » first hollow stem » First hollow stem update 02/26/15

First hollow stem update 02/26/15

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David Marburger

David Marburger

Since April 2016, I have served as the Small Grains Extension Specialist at Oklahoma State University. My research and extension efforts focus on delivering science-based recommendations in order to increase small grains production and profitability for stakeholders throughout Oklahoma and the southern Great Plains.

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First hollow stem is the optimal time to remove cattle from wheat pasture (full explanation). To monitor first hollow stem, we measure hollow stem for the 56 lines in our September-sown wheat forage plots at Stillwater each year. In spite of the recent cold snap many varieties are progressing towards first hollow stem. The small grains extension crew split ten stems from lines tested in our program today and Gallagher, Everest, Jackpot, Winterhawk, T153, T154, LCS Pistol, and TAM 112 join the list of varieties at or past first hollow stem. Full results are posted in the table below. We will take another set of measurements the first of next week and report the results on this blog.

The numbers reported from Stillwater are likely behind those being observed in southern Oklahoma and ahead of those observed in northern Oklahoma. You can check progression of first hollow stem around the state by using the First Hollow Stem Advisor on the Oklahoma Mesonet site.

First hollow stem measured in wheat sown 09/16/2014 at Stillwater, OK. Varieties in red are at or past first hollow stem.
Variety cm of hollow stem 02/26/15
Endurance 0.0
Deliver 0.6
Pete 0.0
OK Rising 0.1
Billings 0.5
Ruby Lee 0.4
Garrison 0.1
Duster 0.1
Gallagher 2.0
Iba 0.1
Centerfield 0.2
Doublestop CL Plus 0.0
NF 101 1.0
Everest 1.6
1863 0.7
KanMark 1.1
Oakley CL 1.0
KS061406 0.8
Sy Llano
Sy Southwind 0.6
Greer 0.8
Jackpot 1.9
Sy Monument 0.0
06BC722#25 0.8
AP09T7631 0.1
WB-Cedar
WB-Redhawk
WB4458 1.7
WB-Grainfield 1.0
Winterhawk 1.9
T153 1.5
T154 2.3
T158 0.1
LCS Mint 1.4
LCS Wizard 0.7
LCS Pistol 1.7
LCH13DH-20-87 0.8
LCH13DH-14-91
TAM 112 1.9
TAM 204 1.3
TAM 113 1.4
TAM 114 1.2
CO11D174 1.1
Byrd 0.7
Brawl CL Plus 0.9
OK09125 0.9
OK1059060-2C14 0.9
OK10126 2.3
OK11D25056 1.5
OK11231 1.4
OK12621 0.6
OK13625
OK0986130-7C13
OK08P707W-19C13 1.0
OK10728W 1.0
OK11755W 2.2
Average 1.0

 

 


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