Home Crop Monitoring Wheat School: Seed test for dormancy and vigour after a drought year

Wheat School: Seed test for dormancy and vigour after a drought year


How drought can affect seed high quality is unquestionably a query on a lot of farmers’ minds this year.

Rachael Melenka, consumer success supervisor at 20/20 Seed Labs, has all the data to contemplate for testing harvested grains on this Wheat Faculty episode.

There’s a potential challenge with seed grown having elevated dormancy this year versus a extra common year. That may affect a seed lot’s vigour ranking.

Melenka explains that abscisic acid produced by crops throughout dry situations will have an effect on gibberellin hormone manufacturing, which regulates seed maturity and dormancy. When gibberellin manufacturing decreases, there’s the potential for elevated dormancy in seed, which in flip can have an effect on seed vigour.

“Of course we know that with drought, and in different conditions where the plant doesn’t have ideal conditions to fill the seed, we get smaller and lighter seed,” says Melenka.

Thousand kernel weights might be affected by the drought, and though seed examined off the mix would possibly look good, it’s vital to get that grain examined once more in spring for germination, vigour, and thousand kernel weight. Six months of storage over winter can have an effect on germination and vigour specifically.

Melenka additionally recommends to be careful for mechanical injury whereas dealing with seed that might additionally have an effect on germination and vigour subsequent spring.

Catch the total dialog with Melenka and discipline editor Kara Oosterhuis, beneath:


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