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How to identify Johnson Grass pollen?
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coolhand
Posted 7/21/2021 14:10 (#9121846 - in reply to #9121814)
Subject: RE: How to identify Johnson Grass pollen?



How familiar do you want to be with it? When you say seed bagged, are you cross pollinating it? That’s how they make hybrids, emasculate a few flowers and take the rest of the florets off and bag what’s emasculated so those flowers won’t catch pollen blowing around. Come the next day with preferred pollen to fertilize.

Find some of those magnifying glasses you wear, start peeling flowers open a few days after the panicum emerges. You’ll see 3 anthers in each bud and 2 female parts. It’s a lot like a wheat floret. Panicum flowers over a 3-7 day span from top to bottom I think. You can shake pollen loose at dawn each day.

If you’re making a hybrid, you cannot damage either of the female parts while emasculating. They won’t pollinate if you do. You have to get the anthers out the day before the female structure is ready for pollination. The glumes open and female parts are exposed the day of pollination.

Seed is just like grain sorghum but smaller and being more tightly wrapped in its glumes.

Pollination
Seed expansion
Watery ripe(seed is viable from here on out)
Milky ripe
Dough
Hard dough
Mature
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