Methods of reducing crop variation in apple trials

dc.contributor.author	Moore, C.S.
dc.contributor.author	Pearce, S.C.
dc.date.accessioned	2014-09-05T06:07:59Z
dc.date.available	2014-09-05T06:07:59Z
dc.date.issued	1976
dc.description.abstract	Data are examined from an apple trial over a period of sixteen years during which the trees received no differential treatments. Crops for a varying number of years were accumulated in order to determine how long a period is needed to obtain a low coefficient of variation. Four years were better than two, but six years gave little advantage over four. Covariance by previous crops was useful, two years' crop being as good as four years' crop. Adjustment by trunk girth was less successful but could be recommended in conjunction with previous crop. Number of fruits was a more variable record than crop weight. Removing positional variation by analysis of variance did not have a major effect in reducing variation. Where space is available multi-tree plots proved effective since adjacent tree crops are not highly correlated, but covariance adjustment of multi-tree plots was not successful.	en_US
dc.identifier.citation	Journal of Horticultural Science (1976) 51, 533-544	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/5379
dc.language.iso	en	en_US
dc.title	Methods of reducing crop variation in apple trials	en_US
dc.type	Article	en_US

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