000			01850nam a22003257a 4500
001			G447605
003			MX-TxCIM
005			20170719110502.0
008			121211s ||||f| 0 p|p||0|| |
020			_a0193-3825
040			_aMX-TxCIM
082	0	4	_a82-733768
100	1		_aWebster, J.A.
245	0	0	_aReduced yield of spring oat cultivars by cereal leaf beetles [Oulema melanopus; Michigan]
260			_c1980
340			_aPrinted
500			_aill. 10 ref NAL, USDA, Beltsville, Md. 20705 - USA
520			_aIn this research, we determined grain yield loss of oat cultivars commonly grown in cereal leaf beetle infested areas of Michigan. We measured yield loss by comparing grain yield and panicle weights from infested plots with those of uninfested plots of three locations. Two out of three tests showed significant losses in kg/ha grain yield, with an average loss of 17 percent and a range of 4 to 20 percent. The average larval density was one larva per two stems with a range of 0 to 1.2 percent. The average larval density was one larva per two stems with a range of 0 to 1.2 larvae per stem. Of the yield components, no significant losses were noted in fertile tillers (except in one test where red leaf virus was present), but significant losses were found in kernels per panicle and kernel weight. 'Korwood' and 'Orbit' were the highest yielding cultivars, while 'Clintland 64' was the lowest
546			_aEnglish
595			_aAC
650	1	0	_aInjurious insects
650	1	0	_aMichigan
650	1	0	_aOats avena
650	1	0	_aPests of plants _91201
650	1	0	_aPlant production _91212
700	1		_aHoxie, R.P., _ecoaut.
700	1		_aSmith, D.H., _ecoaut.
773	0		_tAgricultural Research Results ARR-NC - Science and Education Administration, U.S. Dept. of Agriculture (USA). no. 6 Oct 1980. 6 p
942			_cBK
999			_c42639 _d42639