Wheat provides >20% of global human calorie intake and thus is important to global food security (FAOSTAT, 2011). Products made from flour prepared from PHS-damaged grain are often porous, sticky, and darker in color. The germination process damages grain and makes it unsuitable for most end uses. Preharvest sprouting occurs periodically in many wheat growing regions worldwide and is responsible for large economic losses each year. Wheat ( Triticum aestivum L.) preharvest sprouting (PHS) happens when grains begin to germinate before harvest. Markers for both TaMFT-3A and TaMFT-3B2 should be used in selecting for increased wheat dormancy and PHS resistance. In the current study, the TaMFT-3A and TaMFT-3B2 alleles each explained 14% of observed PHS variation. Previous research has shown TaMFT-3A as having a large impact on PHS resistance. No association between PHS resistance and TaMKK3-4A or TaVp1-3B variation was observed, though Loma and Warhorse vary for TaMKK3-4A and TaVp1-3B mutations reported to be PHS associated. No sequence variation between Loma and Warhorse was detected in the exons of the TaMFT-B1 and D homeologs. The PHS variation was associated with the TaMFT- A and the B2 homeolog with Loma carrying mutant forms of each gene. The 162 BC 1 DHL lines were grown over two field seasons and PHS susceptibility was assessed by measuring PHS resistance in physiologically mature heads. In this study, the TaMFT ( 3A, 3B1, 3B2, 3D), TaMKK3-4A, and TaVP1-3B genes were assessed for association with PHS in a double-haploid line (DHL) hard red winter wheat population derived from a BC 1 cross between the cultivars Loma and Warhorse, where Loma was the recurrent and PHS susceptible parent. Multiple genes involved in the development of seed dormancy are associated with PHS. Investigating the genetics that control PHS resistance may result in increased control of seed dormancy. Of course now I have to buy more valves and set up a new rig, but I’m good with that if it makes my life easier and I have less watering to do.The phenomenon of preharvest sprouting (PHS), caused by rain after physiological maturity and prior to harvest, negatively affects wheat ( Triticum aestivum L.) production and end use. I was hoping buy a new controller to run my holding as well as my grow out beds but wasn’t planning on buying one yet. One good thing is that my original controller will do all of my general watering. The two existing beds are plummbed together and my water pressure is plenty to run the needed misters for two to three beds. I have two 6’ x 12’ propagation beds and will be adding at least one more this year. ![]() I’ll be experimenting with it to see what works best. I will be needing it to turn on every minute to two minutes for 10 to 15 seconds throughout the day. How do you set your timer, how often and how long? For general watering we have what is called 'hunter node controller' battery too, significantly easier to setup (not that I did it!) My partner had to ring the shop it is damn hard to program! But it is very neat because it is the only battery driven on which can do intermittent misting. Angelika Maier wrote:We have a galcon controller but a battery driven one.
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