Because unfriendly temperatures kill the aphids that vector BYDV
in the fall planting near or after the first freeze is a good way to avoid BYDV
These DNA segments are added to DNA of plants the scientists think might be carriers of the wheatgrass chromosome with the BYDV
Rochow (1969) originally separated BYDV
into several strains (formerly considered isolates or strains) based on their ability to be transmitted by different species of aphid vectors, and the current virus designations reflect the most common transmission pattern.
Dominant gene Bdv1and Bdv2confers tolerance to BYDV
in some wheat varieties that induces slow yellowing.
This provides a basic mechanism for the observation in some studies that aphids prefer plants infected with BYDV
over healthy plants.
ELISA values in a four-replicate test, 14 d after infestation with aphids viruliferous for BYDV
and CYDV, for P961341 and Abe were, respectively, 0.
In 1999, plots were rated for severity of crown rust and BYDV
within the 2 wk following heading date in four and three environments, respectively, using a nine-point combined scale of incidence and severity (Helland and Holland, 2001).
BIRD CHERRY-OAT APHIDS, which are efficient vectors of BYDV
(McPherson et al.
1998), and for this report we examined the inheritance of a BYDV
coat protein gene and bar, and the expression of bar as measured by resistance to glufosinate-ammonium damage, in the progeny of seven independent transformation events through the [T.
2000) that are linked to loci for BYDV
tolerance (Jin et al.
NC Hulless is resistant to prevalent races of crown rust in North Carolina and it has a moderate level of tolerance to BYDV
Traits associated with greater PC1 scores Favorable environmental Year (higher average yield) factors 1992 Shorter Cooler summer; high precipitation in June 1993 Less BYDV
, septoria leaf More October and November blotch, and stem rust precipitation; cooler summer 1994 Taller;, less glume blight Colder winter; less and septoria leaf blotch precipitation in June 1995 Earlier/shorter Warmer winter 1996 Later/winterhardier Cooler summer; more precipitation in April and May 1997 Less septoria blotch -- 1998 Earlier/shorter Warmer winter 1993-1997 Better resistance to -- septoria leaf blotch