Crop Production Lab 9 Wheat

vernalization

required cold period for reproduction in winter wheat

General growth staging for wheat

Seedling – tillering – stem elongation/extension – heading – ripening

Feekes 1.0

emergence

Feekes 2.0-3.0

tillering begins/continues

Feekes 4.0-5.0

leaf sheath lengthen/lengthen strongly

Feekes 6.0-7.0

first/second node visible

Feekes 8.0-9.0

last leaf/ligule of leaf just visible

Feekes 10.0-10.5

“in boot”/flowering

type of pathogen for wheat streak mosaic

This disease is a virus that is transmitted by bugs like mites.

type of pathogen for tan spot

Tan spot is a fungal disease

type of pathogen for stem rust

stem rust is a fungus

type of pathogen for fusarium head blight

this is a fungal disease

Fusarium head blight is bad to find in grains because…

It can cause the plant to shrink, shrivel, or abort the grain. The fungus also produces mycotoxins. 

red wheat

used for bread

white wheat

used for bread, pastries, cookies

durum wheat

used for pasta

What makes good quality wheat?

Uniform color, shape, no yellow berries, no shriveled/pink kernels, no broken kernels, no foreign matter

What disease is this?

stem rust

What disease is this?

fusarium head blight

What disease is this?

white streak mosaic virus

What disease is this?

tan spot