Home » first hollow stem » First hollow stem update 02/26/2016

First hollow stem update 02/26/2016

About Me

Amanda De Oliveira Silva

Amanda De Oliveira Silva

I have served as an Assistant Professor and Small Grains Extension Specialist at Oklahoma State University since August 2019. I believe that close interaction with producers is vital to understand their production strategies and to establish realistic research goals. My program focuses on developing science-based information to improve the agronomic and economic viability of small grains production in Oklahoma and in the Southern Great Plains.

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First hollow stem is the optimal time to remove cattle from wheat pasture (full explanation). We measure first hollow in our September-sown wheat forage plots at Stillwater each year, and normally have approximately 50% of varieties at or past first hollow stem by March 1st. I have posted first hollow stem measurements from these plots in a table at the end of this blog. WB-Grainfield and AG Robust have reached first hollow stem since our last update.

Keep in mind that the numbers reported from Stillwater are likely behind those being observed in southern Oklahoma and ahead of those observed in northern Oklahoma. The First Hollow Stem Advisor can provide an estimate of first hollow stem progress in your neck of the woods.

First hollow stem measured in wheat sown 09/15/2015 at Stillwater, OK. Varieties with no hollow stem value reached first hollow stem on a previous measurement date
Variety cm of hollow stem 02/26/16
Endurance 0.9
OK Rising 1.3
Ruby Lee 1.3
Duster 1.2
Doublestop CL Plus 1.3
NF 101
WB-Grainfield 1.6
SY Monument 0.9
SY Flint
SY Llano
SY Drifter
SY Wolf 1.1
SY Razor
SY Grit
KanMark 1.4
Oakley CL 1.3
Larry 0.8
Tatanka 1.0
Joe 0.7
LCS Pistol 0.9
LCS Wizard 1.2
LCS Mint 0.9
LCS Chrome 1.0
T158 1.0
Long Branch 1.1
TAM 112 1.2
TAM 204 1.3
TAM 114 1.3
AG Robust 1.6
Byrd 1.2
Brawl CL Plus 0.6
Avery 0.7
OK1059060-3 1.3
OK10126 0.7
OK11D25056 0.8
OK12621 0.8
OK10728W 0.8
OK12716R/W 0.6
OK11231 0.8
OK09915C-1 0.6
OK12912C 1.0
OK12DP22002-042 1.2
Average 1.0

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