Lecture 10 - Wheatgrasses Flashcards
(18 cards)
types of wheatgrass
- crested wheatgrass
- intermediate wheatgrass
- hybrid wheatgrass
- slender wheatgrass (native grass)
what climate is wheatgrass most adapted to
arid or semi-arid climates
do wheatgrasses establish relatively easily
yes
crested wheatgrass description
- long-lived perennial bunchgrass
- semi dormant during droughts or summer
- upright growth habit
crested wheatgrass has ________ winter hardiness and drought tolerance
exceptional
when does crested wheatgrass start growth
early in spring
adaptation of crested wheatgrass
- not very persistent in moist zones
- moderate salinity tolerance
why is crested wheatgrass typically grown for hay
- has high yield in cut 1
- regrowth is usually poor
- mixed with alfalfa or other legumes
problems with crested wheatgrass in pasture production
- mature plants may be unpalatable (wolf plants)
- poor summer regrowth
wolf plants
plants that cattle will graze around (typically when they develop seed head)
t/f: intermediate wheatgrass requires more ample soil moisture than crested wheatgrass
t
intermediate wheatgrass have tolerance to __________ salinity
moderate
intermediate wheatgrass description
- tall, productive grass
- later maturing (1-2wk) than brome
- short rhizomatous
- potential as a biomass crop
pasture production of intermediate wheatgrass
- mixed with alfalfa
- should not be grazed continuously or close to the ground (stand will be short lived)
what is the cross to develop hybrid wheatgrass
quackgrass x bluebunch wheatgrass
where is hybrid wheatgrass typically used
in saline areas because it has high salinity tolerance
slender wheatgrass is a ________ bunch grass
short lived
t/f: slender wheatgrass is not very tolerant to saline soils
f, it has high tolerance to saline soils