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Barbados Maturity – Making the most of staying green

10.8.17

Barbados is a high gross-output conventional variety with exceptional disease resistance scores for Stem Canker (7) and Light Leaf Spot (7) as well as being shown by ADAS to have wide Verticillium tolerance.

Being so clean means that its canopy stays green much longer than many other varieties and this is illustrated clearly in trials where it is alongside a range of material. Staying greener longer means more photosynthesis and therefore greater yield.

In Recommended List trials the AHDB protocol for scoring maturity of varieties states:

“(Maturity….) should be based on the degree of canopy senescence and should be recorded just prior to swathing or desiccation. Ranging from green and pliable (1) to bleached and brittle (9).” AHDB Protocol WR2017-2021 (June 2016)

A variety that stays greener, longer therefore will appear less mature in the early stages of senescence leading up to time for desiccation. This is demonstrated to good effect in northern trial results from 2016 (this is Northern data so harvest is mid-August):

OSR graph.png

As can be seen; very early on Barbados appears to be later maturing than other varieties but approaching time for desiccation it soon catches up and is not significantly later than the bulk of the trial. This tallies exactly with what is seen on farm and contributes to the success of Barbados across the whole UK not just in the North where it is recommended.


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