Sugar Reserves and Cold Hardiness of Winter Wheat Reduced by Larval Feeding of the Hessian Fly, Mayetiola destructor (Say) (Diptera: Cecidomyiidae)

1986 ◽  
Vol 15 (2) ◽  
pp. 392-395 ◽  
Author(s):  
S. G. Wellso ◽  
C. R. Olien ◽  
R. P. Hoxie ◽  
A. S. Kuhna
2016 ◽  
Vol 41 (2) ◽  
pp. 321-330 ◽  
Author(s):  
Holly N. Schwarting ◽  
R. Jeff Whitworth ◽  
Ming-Shun Chen ◽  
Gary Cramer ◽  
Thomas Maxwell

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rohollah Sadeghi ◽  
Steven Odubiyi ◽  
Atoosa Nikoukar ◽  
Kurtis L. Schroeder ◽  
Arash Rashed

AbstractThe Hessian fly Mayetiola destructor (Diptera: Cecidmyiidae) is a major pest of wheat, globally. We conducted a series of laboratory choice and no-choice assays to quantify Hessian fly host preference for barley (cv. Champion), oat (cv. Cayuse), susceptible (cv. Alturas), and resistant (cv. Hollis) wheat. In addition, larval survivorship and adult emergence were compared among the evaluated host plants. We then examined whether insect preference for a host can be explained by differences in plant spectral reflectance. Further, larval survivorship and adult emergence were compared among host plants in relation to phytohormone concentrations. Hessian flies laid more eggs on wheat compared to either oat or barley. Spectral reflectance measurements of leaves were similar between susceptible and resistant wheat cultivars but different from those of barley and oat. Our results suggested that higher reflectance in the near-infrared range and lower reflectance in the visible range may be used by females for host selection. Hessian fly larvae were unable to develop into the pupal stage on resistant wheat and oat. No significant difference in larval survivorship was detected between the susceptible wheat and barley. However, adult emergence was significantly higher on barley than the susceptible wheat. Phytohormonal evaluations revealed that salicylic acid (SA) may be an important contributor to plant defense response to larval feeding as relatively higher concentrations of SA were present in oat and resistant wheat. While resistance in the resistant wheat is achieved only through antibiosis, both antibiosis and antixenosis were in effect rendering oat as a non-host for Hessian flies.


Crop Science ◽  
1984 ◽  
Vol 24 (6) ◽  
pp. 1220-1220
Author(s):  
O. G. Merkle ◽  
J. H. Hatchett ◽  
E. L. Smith

Crop Science ◽  
1992 ◽  
Vol 32 (2) ◽  
pp. 506-506 ◽  
Author(s):  
R. G. Sears ◽  
J. H. Hatchett ◽  
T. S. Cox ◽  
B. S. Gill

2005 ◽  
Vol 1 (1) ◽  
pp. 39-50 ◽  
Author(s):  
Nagesh Sardesai* ◽  
Subhashree Subramanyam* ◽  
Jill Nemacheck ◽  
Christie E. Williams

1975 ◽  
Vol 55 (2) ◽  
pp. 529-535 ◽  
Author(s):  
M. K. POMEROY ◽  
C. J. ANDREWS ◽  
G. FEDAK

Increasing the duration of freezing of Kharkov winter wheat (Triticum aestivum L.) demonstrated that severe injury does not occur to plants at a freezing temperature (−6 C) well above the lethal temperature for at least 5 days, but progressively more damage occurs as the temperature approaches the killing point (−20 C). High levels of cold hardiness can be induced rapidly in Kharkov winter wheat if seedlings are grown for 4–6 days at 15 C day/10 C night, prior to being exposed to hardening conditions including diurnal freezing to −2 C. The cold hardiness of Kharkov and Rideau winter wheat seedlings grown from 1-yr-old seed was greater than that from 5-yr-old seed. Cold-acclimated Kharkov winter wheat and Dover winter barley (Hordeum vulgare L.) demonstrated the capacity to reharden after varying periods under dehardening conditions. The time required to reharden and the maximum level of hardiness attained by the plants was dependent on the amount of dehardening. Considerable rehardening was observed even when both dehardening and rehardening were carried out in the dark.


1990 ◽  
Vol 83 (3) ◽  
pp. 1025-1033 ◽  
Author(s):  
D. G. Buntin ◽  
P. L. Bruckner ◽  
J. W. Johnson
Keyword(s):  

1988 ◽  
Vol 66 (9) ◽  
pp. 1723-1728 ◽  
Author(s):  
Michio Suzuki ◽  
H. G. Nass

Eight winter wheat, one triticale, and three fall rye cultivars with mean lethal temperature (LT50) values from −5.5 to −20.0 °C were harvested in late November and analyzed for fructans. Fructose, sucrose, and oligofructans with a degree of polymerization (DP) of 6 or lower were found in all cultivars. The concentration of DP 4 fructan was higher than that of DP 5 in winter wheat and triticale, while the opposite trend was found in fall rye. Fructans with a DP of 7 or higher (high DP fructans) were found at high concentrations in hardy winter wheat and fall rye. The high DP fructan was very low or negligible in the least hardy winter wheat cultivar 'Super X'. Fructans in winter cereals consisted mainly of inulin type with a β-2-1 linkage. The activity of phlein sucrase, which catalyzes synthesis of phlein, was much lower in winter cereals compared with phlein-rich grasses. It was concluded that high DP fructans of inulin type in basal top tissues of winter cereals were more closely associated with freezing resistance than low DP fructans.


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