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022			_a0003-4746
022	0		_a1744-7348 (Online)
024			_2https://doi.org/10.1111/j.1744-7348.1960.tb03579.x
040			_aMX-TxCIM
041			_aeng
090			_aREP-975
100	1		_aWalker, P.T. _931339
245	1	0	_aThe relation between infestation by the stalk borer, Busseola fusca, and yield of maize in East Africa
260			_c1960. _aUnited Kingdom : _bWiley,
340			_aPrinted
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0003-4746
520			_aThe relation between yield and infestation by the maize stalk borer, Busseola fusca Fuller, is expressed as a series of regression lines for crops of different potential yields. The reasons are given for assuming that the regression is rectilinear, and that the regression coefficient b, or rate of fall in yield, is proportional to the maximum expected yield of the crop, that is that b For the crops examined, the formula for a general regression line of yield, as hundreds of pounds of dry grain per acre, on infestation, as the percentage of plants attacked transformed to angles, is y= 45.1–0.55x for a high-yielding area, and y= 14.55–0.23x for a lower yielding crop. This is equivalent to a 35 lb./acre increase in grain yield for every 1% decrease in infestation for the higher yielding group, and 17 lb. increase per 1% decrease for the lower. The applications of the relationship are discussed, in particular to studies of the economics of control by insecticides, and of the accuracy of methods of sampling infestations.
546			_aText in English
595			_aRPC
650		7	_2AGROVOC _916108 _aInfestation
650		7	_2AGROVOC _93781 _aBusseola fusca
650		7	_2AGROVOC _91313 _aYields
650		7	_2AGROVOC _91173 _aMaize
650		7	_2AGROVOC _931340 _aEast Africa
773	0		_tAnnals of Applied Biology _gv. 48, no. 4, p. 780-786 _dUnited Kingdom : Wiley, 1960. _wG444142 _x1744-7348
942			_cJA _2ddc
999			_c21244 _d21244