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Documentation for package ‘agridat’ version 1.12

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A B C D E F G H I J K L M N O P R S T V W Y Z

-- A --

aastveit.barley Barley heights and environmental covariates in Norway
adugna.sorghum Sorghum yields at 3 locations across 5 years
agridat Datasets from agricultural experiments
allcroft.lodging Lodging data from a multi-environment trial cereal crop
archbold.apple Split-split plot experiment on apple trees
ars.earlywhitecorn96 Early White Food Corn Performance Tests
australia.soybean Australia soybeans

-- B --

baker.barley.uniformity Ten years of barley uniformity trials on same ground
batchelor.apple.uniformity Uniformity trials of fruit tree yields.
batchelor.lemon.uniformity Uniformity trials of fruit tree yields.
batchelor.navel1.uniformity Uniformity trials of fruit tree yields.
batchelor.navel2.uniformity Uniformity trials of fruit tree yields.
batchelor.valencia.uniformity Uniformity trials of fruit tree yields.
batchelor.walnut.uniformity Uniformity trials of fruit tree yields.
beall.webworms Counts of webworms in a beet field, with insecticide treatments.
beaven.barley Yields of 8 barley varities in 1913 as used by Student.
besag.bayesian Spring barley in United Kingdom
besag.beans Competition experiment in beans with height measurements
besag.elbatan RCB experiment of 50 varieties of wheat in 3 blocks with strong spatial trend.
besag.endive Presence of footroot disease in an endive field
besag.met Multi-environment trial of corn laid out in incomplete-blocks
besag.triticale Four-way factorial agronomic experiment in triticale
biplot.gge GGE biplots
blackman.wheat Yield for conventional and semi-dwarf wheat varieties
bliss.borers Corn borer infestation under four treatments
bond.diallel Diallel cross of winter beans
box.cork Weight of cork samples on four sides of trees
brandle.rape Three-way table of rape seed yields
brandt.switchback Switchback trial of milk yield for two feed mixtures in cattle
bridges.cucumber Cucumber yields in Latin Square design.
broadbalk.wheat Long term wheat yields on Broadbalk fields at Rothamsted.
burgueno.alpha Incomplete block alpha design
burgueno.rowcol Row-column design
burgueno.unreplicated Field experiment with unreplicated genotypes plus one repeated check.
butron.maize Maize yields in a multi-environment trial. Pedigree included.
byers.apple Diameters of apples

-- C --

caribbean.maize Maize fertilization trial on Antigua and St. Vincent
carlson.germination Germination of alfalfa seeds at various salt concentrations
carmer.density Maize yield-density model
cate.potassium Relative cotton yield for different soil potassium concentrations
cleveland.soil Soil resistivity in a field
cochran.beets Yield and number of plants in a sugarbeet fertilizer experiment
cochran.bib Balanced incomplete block design in corn
cochran.crd Potato scab infection with sulfur treatments
cochran.eelworms Counts of eelworms before and after fumigant treatments
cochran.factorial Factorial experiment in beans
cochran.latin Latin square design in wheat
cochran.lattice Balanced lattice experiment in cotton
cochran.wireworms Wireworms controlled by fumigants in a latin square
connolly.potato Potato yields in single-drill plots
cornelius.maize Maize yields for 9 cultivars at 20 locations.
corsten.interaction Corn yield in multi-environment trial
cox.stripsplit Strip-split plot of barley with fertilizer, calcium, and soil factors.
crossa.wheat Wheat yields for 18 genotypes at 25 locations
crowder.seeds Germination of Orobanche seeds from Crowder (1978)
cullis.earlygen Early generation variety trial in wheat

-- D --

darwin.maize Darwin's maize data of crossed/inbred plant heights
denis.missing Multi-environment trial with structured missing values
denis.ryegrass Plant strength of perennial ryegrass in France
desplot Plot the layout/data of a field experiment
digby.jointregression Multi-environment trial illustrating joint regression
diggle.cow Bodyweight of cows in a 2-by-2 factorial experiment
durban.competition Sugar beet yields with competition effects
durban.rowcol Row column design of a spring barley trial with many varieties
durban.splitplot Split-plot barley variety trial with fungicide treatments

-- E --

eden.potato Potato yields in response to potash and nitrogen fertilizer
engelstad.nitro Corn yield response to nitrogen fertilizer

-- F --

fan.stability Maize hybrids grown in China
federer.diagcheck Wheat experiment with diagonal checks
federer.tobacco Height of Tobacco plants exposed to radiation
fisher.latin Latin square experiment on mangolds
foulley.calving Calving difficulty by calf sex and age of dam
fox.wheat Wheat yields of 22 varieties at 14 sites in Australia

-- G --

garber.multi.uniformity Uniformity trials of oat hay and wheat
gathmann.bt Impact of Bt Corn on non-target species
gauch.soy New York soybean yields, 1977 to 1988
gge GGE biplots
gge.formula GGE biplots
gge.matrix GGE biplots
gilmour.serpentine Wheat yield in South Australia with serpentine row/col effects
gilmour.slatehall Slate Hall Farm 1978
gomez.fractionalfactorial Rice fractional factorial experiment
gomez.groupsplit Rice group balanced split-plot design
gomez.multilocsplitplot Rice multilocation Split-Plot
gomez.nitrogen Soil nitrogen at three times for eight fertilizer treatments
gomez.rice.uniformity Rice uniformity yield test
gomez.seedrate Rice yield at six different densities
gomez.splitplot.subsample Height of rice in a split-plot experiment with subsamples
gomez.splitsplit Rice split-split plot experiment
gomez.stripplot Rice strip-plot experiment
gomez.stripsplitplot Rice strip-split-plot experiment
gotway.hessianfly Hessian fly damage to wheat varities
goulden.barley.uniformity Barley uniformity trial
goulden.latin Latin square experiment for testing fungicide
graybill.heteroskedastic Wheat varieties with heteroskedastic yields
gumpertz.pepper Phytophtera disease incidence in a pepper field

-- H --

hanks.sprinkler Wheat yields in a line-source sprinkler experiment
harris.multi.uniformity Multi-year uniformity trials with different crops at Huntley
harris.wateruse Water use by horticultural trees
harrison.priors Ranges of analytes in soybean from other authors
hayman.tobacco Two reps of full diallel cross of Aztec tobacco
hazell.vegetables Gross profit for four vegetable crops in six years
heady.fertilizer Yield of corn, alfalfa, clover with two fertilizers
henderson.milkfat Milk fat yields for a single cow
hernandez.nitrogen Corn response to nitrogen fertilizer at 5 sites.
hessling.argentina Relation between wheat yield and weather in Argentina
hildebrand.systems Maize yields for four cropping systems
holland.arthropods Counts of arthropods in a grid-sampled wheat field
holshouser.splitstrip Split strip plot on soybeans
hughes.grapes Disease incidence on grape leaves in RCB experiment
hunter.corn Corn yield response to nitrogen

-- I --

ilri.sheep Birth weight and weaning weight of Dorper x Red Maasi lambs
immer.sugarbeet.uniformity Uniformity study of sugarbeets with measurements of yield, sugar, purity
ivins.herbs Percent ground cover of herbage species and nettles.

-- J --

jansen.apple Infestation of apple shoots by apple canker.
jansen.carrot Infestation of carrots by fly larvae
jansen.strawberry Ordered disease ratings on strawberry crosses.
jenkyn.mildew Yields from treatment for mildew control
john.alpha Alpha lattice design of spring oats
johnson.blight Potato blight due to weather in Prosser, Washington

-- K --

kalamkar.potato.uniformity Uniformity trial of potatoes.
kang.maize Maize yields at 4 locs in 3 years in Louisianna.
kang.peanut Peanut yields for 10 genotypes in 15 environments
karcher.turfgrass Turfgrass ratings for different treatments
keen.potatodamage Damage to potato tubers from lifting rods.
kempton.barley.uniformity Uniformity trial of Spring Barley in 1978
kempton.competition Sugar beet trial with competition effects
kempton.rowcol Wheat row-column experiment
kempton.slatehall Slate Hall Farm 1976 spring wheat

-- L --

lambert.soiltemp Average monthly soil temperature near Zurich
lasrosas.corn Yield monitor data for a corn field in Argentina with variable nitrogen.
lavoranti.eucalyptus Height of Eucalyptus trees in southern Brazil
lee.potatoblight Repeated measurements of resistance to potato blight.
li.millet.uniformity Uniformity trial of 600 millet plots.
lonnquist.maize Half diallel of maize
lucas.switchback Switchback trial in dairy with three treatments
lyon.potato.uniformity Uniformity trial of potatoes
lyons.wheat Yield of winter wheat at 12 sites in 4 years.

-- M --

mcconway.turnip Yields of turnips grown for winter fodder
mcleod.barley Yield and yield components for barley
mead.cauliflower Leaves for cauliflower plants at different times
mead.cowpeamaize Maize/Cowpea intercropping experiment
mead.germination Seed germination with different temperatures/concentrations
mead.strawberry Strawberry yields in RCB experiment
mercer.mangold.uniformity Mercer and Hall's uniformity trial of mangolds in 1910
mercer.wheat.uniformity Mercer and Hall's uniformity trial of wheat in 1910
minnesota.barley.weather Monthly weather at 6 sites in Minnesota 1927-1936.
minnesota.barley.yield Yields of barley at 6 sites in Minnesota 1927-1936.

-- N --

nass.barley U.S. historical crop yields by state
nass.corn U.S. historical crop yields by state
nass.cotton U.S. historical crop yields by state
nass.hay U.S. historical crop yields by state
nass.rice U.S. historical crop yields by state
nass.sorghum U.S. historical crop yields by state
nass.soybean U.S. historical crop yields by state
nass.wheat U.S. historical crop yields by state
nebraska.farmincome Nebraska farm income in 2007 by county

-- O --

odland.soybean.uniformity Uniformity trials of soy hay and soybeans.
odland.soyhay.uniformity Uniformity trials of soy hay and soybeans.
ortiz.tomato Tomato weight/yield and environmental covariates in Latin America

-- P --

pacheco.soybean Soybean yields in Brazil.
panel.outlinelevelplot Panel Function for desplot
patterson.switchback A switchback trial in dairy cattle
pearce.apple Apple tree yields for 6 treatments with covariate
pearl.kernels Counts of yellow/white and sweet/starchy maize kernels by 15 observers
perry.springwheat Yields of wheat cultivars introduced 1860-1982.
piepho.cocksfoot Heading dates for cock's foot on 25 varieties in 7 years
plot.gge GGE biplots

-- R --

ratkowsky.onions Onion yields for different densities at two locations
RedGrayBlue Function to create a Red-Gray-Blue palette
ridout.appleshoots Root counts for propagated columnar apple shoots.
rothamsted.brussels Yield of brussels sprouts, RCB with 9 fertilizer treatments
ryder.groundnut Wet and dry groundnut yields

-- S --

salmon.bunt Fungus infection in varieties of wheat
senshu.rice Response of rice to solar radiation and temperature
shafii.rapeseed Rapeseed yield multi-environment trial, 3 years
sinclair.clover Clover yields in a factorial fertilizer experiment
smith.corn.uniformity Uniformity trial of corn in three consecutive years
snedecor.asparagus Asparagus yields for different cutting treatments
snijders.fusarium Fusarium infection in wheat varieties
steel.soybean Soybean yields in North Carolina
stephens.sorghum.uniformity Uniformity trial of sorghum silage
steptoe.morex.geno Phenotypic and genotypic data for a barley population of Steptoe x Morex
steptoe.morex.pheno Phenotypic and genotypic data for a barley population of Steptoe x Morex
stirret.borers Corn borer control by application of fungal spores.
streibig.competition Competition experiment between barley and sinapis.
stroup.nin Nebraska Intrastate Nursery field experiment
stroup.splitplot Simulated split-plot experiment
student.barley Barley yield of two varieties in a multi-environment trial

-- T --

talbot.potato Potato yields and trait scores at 12 UK locations
theobald.barley Barley yields at multiple locs, years, fertilizer levels
theobald.covariate Corn silage yields for Year * Loc * Variety with covariate
thompson.cornsoy Corn & Soybean Yields, 1930-1962, with temperature and precipitation
turner.herbicide Herbicide control of larkspur

-- V --

vargas.txe Treatment x environment interaction in agronomy trials
vargas.wheat1 Durum wheat yields in 7 years with genetic and environment covariates
vargas.wheat2 Wheat yields for a multi-environment trial and environmental covariates
verbyla.lupin Lupin yields for different varieties and locations, at many densities
vold.longterm Long-term barley yields at different fertilizer levels
vsn.lupin3 Early generation lupin trial with 3 sites

-- W --

wallace.iowaland 1925 Iowa farmland values by county
walsh.cottonprice Acres and price of cotton 1910-1943
wassom.brome1.uniformity Uniformity trials of bromegrass.
wassom.brome2.uniformity Uniformity trials of bromegrass.
wassom.brome3.uniformity Uniformity trials of bromegrass.
waynick.soil Soil nitrogen and carbon in two fields
wedderburn.barley Percent of barley leaves affected by leaf blotch
weiss.incblock Soybean balanced incomplete block experiment
weiss.lattice Lattice experiment in soybeans.
welch.bermudagrass Yield of bermuda grass with N, P, K fertilizers
wiebe.wheat.uniformity Uniformity trial of wheat
williams.barley.uniformity Yield from a barley uniformity trial
williams.cotton.uniformity Lint yield from a cotton uniformity trial
williams.trees Height / Survival of 37 tree species at six sites in Thailand

-- Y --

yan.winterwheat Multi-environment trial of Winter Wheat in Ontario
yang.barley Yield of 6 barley varieties at 18 locations in Alberta.
yates.missing Factorial experiment with missing values
yates.oats Yield of oats in a split-block experiment

-- Z --

zuidhof.broiler Daily weight, feed, egg measurements for a broiler