Mathematical analysis of growth curves replicated in time

Glenday, A. C.

doi:10.1080/00288233.1959.10420317

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…This is partly at variance with the conclusions of Brougham (1959). Having eliminated seasonal effects by using a mathematical technique due to Glenday (1959), he related weekly variations in the yield of a mixed short-rotation ryegrass/clover sward (w) to climatological factors. He found significant positive correlations of w for ryegrass with radiation and temperature range, but not with maximum or minimum temperature; however, only 23% and 12% of the variation in w was accounted for (r = 0-47 and 0-35 respectively).…”

Section: The Influence Of the Weather On Growthmentioning

confidence: 99%

The growth responses to weather of simulated vegetative swards of a single genotype ofLolium perenne

Thomas

1975

J. Agric. Sci.

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The influence of ambient weather conditions on the regrowth and morphology of a perennial ryegrass sward, over the period May-October 1972, was assessed by following the performance in the field of a succession of vegetative, single genotype, simulated swards previously grown under standard conditions. Crop growth rates estimated from largely non-destructive measurements of growth components (leaf extension, leaf weight/length ratio, tillering rate and tiller density) agreed with, and were more precise than, rates determined from harvests; the components having the greatest influence on growth rate were leaf extension and leaf weight/length ratio. Leaf extension and appearance were closely dependent on temperature; leaf weight/length was only slightly affected by the weather. The growth rates of total above ground parts, especially of herbage above the cutting height, were largely determined by temperature and initial leaf-area index, and insensitive to insolation. At higher temperatures, a greater proportion of assimilates was partitioned into herbage growth.

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Section: The Influence Of the Weather On Growthmentioning

confidence: 99%

The growth responses to weather of simulated vegetative swards of a single genotype ofLolium perenne

Thomas

1975

J. Agric. Sci.

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“…The technique Brougham used in his pasture growth studies was developed in collaboration with Glenday (1955Glenday ( , 1959 and involved layouts that provided replication in time as well as space to allow separation of temporary weather variations on growth. This enabled derivation of pasture growth curves with the influence of shortterm weather fluctuations removed.…”

Section: Effects Of Season and Weather On Pasture Productionmentioning

confidence: 99%

The contributions of Dr Raymond Wilkie Brougham to grassland science and management

Harris¹

1996

ProNZG

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The contributions to grasslands research and practice of the internationally notable New Zealand Scientist, Dr Raymond Wilkie Brougham are reviewed. He made significant contributions to the fundamental understanding of processes in pasture establishment, pasture growth particularly its relationship with leaf area and light interception, and to grazing management effects on the botanical and genetic composition of grassland communities.

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Extension growth of grass tillers in the field

Williams¹,

Biddiscombe²

1965

Aust. J. Agric. Res.

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Growth-recording instruments were used to measure extension growth of grass tillers under a variety of outdoor conditions. Variation in the rate of extension growth between tillers was fairly high, but nevertheless was found to be highly correlated with field temperature while only poorly correlated with light energy. By using these instruments, estimates of growth activity can be made rapidly and over relatively short periods of time; and it is suggested that the method may have use in assessing species for sensitivity to temperature.

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Mathematical analysis of growth curves replicated in time

Cited by 6 publications

References 3 publications

The growth responses to weather of simulated vegetative swards of a single genotype ofLolium perenne

The growth responses to weather of simulated vegetative swards of a single genotype ofLolium perenne

The contributions of Dr Raymond Wilkie Brougham to grassland science and management

Extension growth of grass tillers in the field

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