000			01515nab a22003377a 4500
001			G50017
003			MX-TxCIM
008			121211b |||p||p||||||| |z||| |
040			_aMX-TxCIM
041	0		_aEn
043			_aNL
072		0	_aF10
072		0	_aH20
082	0	4	_a82-820932
100	1		_aCoakley, S.M.
245	0	0	_aClimatic variables that control development of stripe rust disease on winter wheat
260			_c1981
340			_aPrinted
500			_a10 ref.; Summary (En)
520			_aThe frequency and severity of the stripe rust disease (caused by Puccinia striiformis) on winter wheat in the Pacific Northwest of the U.S.A. has increased since 1958 in association with climatic variation. From 1968-1979, rust intensities on 'Gaines' wheat were most highly correlated with accumulated negative degree days (NDD) between 1 December and 31 January and positive degree days (PDD) between 1 April and 30 June. NDD and PDD were calculated from a 7 deg C base. Linear regression equations using NDD alone accounted for 76 of the variation in stripe rust. When NDD and PDD were combined, 88 of the variation in stripe rust was explained. When a
546			_aEnglish
591			_aCOMOD
595			_aAC
650	1	0	_aFungal diseases _gAGROVOC _91539
650	1	0	_aMeteorology and climatology
650	1	7	_aPlant diseases _gAGROVOC _2 _91206
650	1	0	_aWheat triticum spp.
700	1		_aLine, R.F., _ecoaut.
773	0		_tClimatic Change _n82-820932 _gv. 3, no. 3, p. 303-315
942			_cJA
999			_c14735 _d14735