ISSN:
1573-5087
Keywords:
Carrot
;
Daucus carota L.
;
chlormequat chloride
;
gibberellic acid
;
statistical study
;
storage roots
;
sugars
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Statistical aspects of a field and laboratory investigation involving the use of plant growth regulators are described. The design and recording of a field trial on carrots are discussed, with special reference to those points where compromise is necessary between the ideal statistical arrangement and the constraints involved in a practical field trial. The results of the field trial were analysed in detail to examine the assumptions underlying the statistical methods used, and these assumptions were shown to be satisfied. The laboratory investigation included a comparison of different methods of taking samples for sugar determinations. The standard method of bulking samples from different roots was as satisfactory in practice as the more laborious method of sampling individual roots. There was more variation between samples than between different determinations on the same sample. The consequences of these results are discussed, not only in terms of this trial but also for what might be expected in other trials with plant growth regulators. The advantages of close collaboration between plant physiologist and statistician are emphasised.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00028162
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