Texas, USA 2010 - International Herbage Seed Group

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11:00 – 11:15 Alfalfa seed production in semi-humid climate of southeast EuropeD. Karagic, Serbia11:15- 11:30 On-farm conversion of straw to bioenergy – A value added solution to grass seed residueG. W. Mueller-Warrant, USA Oregon11:30 – 12:00 Posters and Discussions12:00 – 13:00 LunchSession:CHAIR: Lars Havstad13:00 – 13:15 Perennial ryegrass (Lolium perenne L.) seed crop response to spring nitrogen: acomparison of New Zealand and Oregon resultsPhil Rolston, New Zealand13:15 – 13:30 In-season assessment of plant nitrogen status for perennial ryegrass seed production usingremote sensingMike Flowers, USA Oregon13:30 – 13:45 Modeling critical NDVI curves in perennial ryegrassRené Gislum, Denmark13:45 – 14:00 Harvest loss in ryegrass seed cropsM. P. Rolston and R. J. Chynoweth, New Zealand14:00 – 14:15 Predicting spring nitrogen for perennial ryegrass seed crops from NDVIRichard Chynoweth, New Zealand14:15 – 14:30 Nitrogen fertilization management for seed production of tall fescueMarie-Laure Casals, France14:30 – 14:45 Questions and Discussion of above papers14:45 – 15:00 Posters and Discussion of Poster Papers15:00 – 15:30 BreakCHAIR: Jorge Castano15:30 – 16:00 Invited Speaker:Stresses associated with germination and establishment of overseeded turfgrassesM. D. Richardson, USA Arkansas16:00 – 16:15 Evaluation of vigour tests for determination of seed storage potential in red clover andtimothyLars Havstad, Norwayvii
16:15 – 16:30 Reliability of salinity screening Lolium genotypes using field grown versus greenhousetechniquesLloyd Nelson, USA Texas16:30 – 16:45 Pericarp imposed seed dormancy in Zygophyllum xanthoxylum (Bunge) Maxim. favoursits adaptation to desert environmentsX. Hu, China16:45 – 17:00 Posters and Discussions17:00 Announcements19:00 Dinner at HotelTuesday, April 13CHAIR: Bill Young08:00 – 08:15 Light, lodging and flag leaves – what drives seed yield in ryegrass?Jason Trethewey, New Zealand08:15 – 08:30 Seed yield components and their potential interaction in grassesBirte Boelt, Denmark08:30 – 08:45 Stem rust in perennial ryegrass seed crops: epidemiological and genetic research atUSDA-ARSWilliam Pfender, USA Oregon08:45 – 09:00 Seed yield variation in a red clover breeding populationDave Monks, New Zealand09:00 – 09:15 History of crimson clover in the USAGerald Smith, USA Texas09:15 – 09:30 Discussion and Posters09:30 –10:00 BreakCHAIR: Phil Rolston10:00 – 10:30 Invited SpeakerChemical diversity of bioprotective alkaloids of endophytic fungi in cool season grasses .Carolyn Young, USA Oklahoma10:30 – 10:45 Control of Vulpia myuros in red fescueS. Mathiassen, Denmark10:45 – 11:00 Annual grasses in crop rotations with grass seed productionP. K. Jensen, Denmark11:00 – 11:45 Business Meetingviii
Page 1 and 2: Proceedings of the 7th Internationa
Page 3 and 4: Table of ContentsORAL PRESENTATIONS
Page 5 and 6: Seed yield components and yield per
Page 7: International Herbage Seed Conferen
Page 11 and 12: Hotel expense is covered for night
Page 13 and 14: 40,000 were slaves (McDonald, 2007)
Page 15 and 16: Fig. 1. Texas AgriLife Research and
Page 17 and 18: $7 billion for cattle, $3 billion f
Page 19 and 20: principle and encourages both AgriL
Page 21 and 22: eceived by growers, the above perce
Page 23 and 24: seed conditioning plants are locate
Page 25 and 26: Table 4.Hectares of open-field burn
Page 27 and 28: system, a seed crop is produced fro
Page 29 and 30: Fig. 1. Land resource areas of Texa
Page 31 and 32: y land owners. Seed yields are low
Page 33 and 34: The influence of planting density o
Page 35 and 36: Simple correlation and regression a
Page 37 and 38: Variation in seed shattering in a g
Page 39 and 40: Seed retention (SR) was calculated
Page 41 and 42: mm160120Precipitation8040020Km h -1
Page 43 and 44: Young, B. A. (1986). A Source of Re
Page 45 and 46: Several methods are commonly used f
Page 47 and 48: Table 3. Effect of the length of ha
Page 49 and 50: Alfalfa seed production in semi-hum
Page 51 and 52: Rather near the meteorological stat
Page 53 and 54: ReferencesBolaños-Aguilar E.D., Hu
Page 55 and 56: ased bioenergy conversion plants wa
Page 57 and 58: Table 1. Average distances required
Page 59 and 60:
Figure 1. Optimized locations for 1
Page 61 and 62:
Perennial ryegrass (Lolium perenne
Page 63 and 64:
Relative Seed Yieldsingle composite
Page 65 and 66:
Flowers, M.D.; Hart, J.M.; Young II
Page 67 and 68:
Thus, similar to tissue tests, remo
Page 69 and 70:
Conclusion:Perhaps our most importa
Page 71 and 72:
Modelling critical NDVI curves in p
Page 73 and 74:
The five spectral reflectance measu
Page 75 and 76:
Harvest loss in ryegrass seed crops
Page 77 and 78:
Larger than expected harvest losses
Page 79 and 80:
Rolston, P.; Trethewey, J.; McCloy,
Page 81 and 82:
Optical sensors have the potential
Page 83 and 84:
Figure 2. Seed yield response to ap
Page 85 and 86:
Flowers, M. D., Hart, J.M., Young I
Page 87 and 88:
In 2010, France has launched the fo
Page 89 and 90:
Yield (% maximum)ConclusionThe resu
Page 91 and 92:
Plant N uptakeN unavailableSoil nit
Page 93 and 94:
Stresses associated with germinatio
Page 95 and 96:
correspond to electrical conductivi
Page 97 and 98:
applied later in the fall was more
Page 99 and 100:
Figure 2. Establishment of five ove
Page 101 and 102:
The seed vigour testing was perform
Page 103 and 104:
Table 1. Germination index (GI) for
Page 105 and 106:
Reliability of salinity screening L
Page 107 and 108:
AcknowledgmentThis research was sup
Page 109 and 110:
Table 2. Greenhouse salinity screen
Page 111 and 112:
The seeds were collected from the A
Page 113 and 114:
increases germination to its potent
Page 115 and 116:
Light, lodging and flag leaves-what
Page 117 and 118:
Relative seed yieldSeed yield (kg/h
Page 119 and 120:
Hampton, J.G.; Clemence, T.G.A.; He
Page 121 and 122:
The seed set is of major importance
Page 123 and 124:
In grass species with poor seed ret
Page 125 and 126:
support system to optimize fungicid
Page 127 and 128:
weather stations in grass seed fiel
Page 129 and 130:
ust resistance loci in Lolium peren
Page 131 and 132:
Seed yield variation in a red clove
Page 133 and 134:
100Seed yield plant -1 (g)806040200
Page 135 and 136:
Marden, J. H. 1984. Remote percepti
Page 137 and 138:
Crimson clover seed production in t
Page 139 and 140:
Piper, C.V. 1935. Forage plants and
Page 141 and 142:
deal of investigation into the caus
Page 143 and 144:
genes and subsequent ability to pro
Page 145 and 146:
Gatenby, W.A., S.C. Munday-Finch, A
Page 147 and 148:
Control of Vulpia myuros in red fes
Page 149 and 150:
The strip design provides an opport
Page 151 and 152:
The pot experiments did not reveale
Page 153 and 154:
CharacterWeed abundance1 A few plan
Page 155 and 156:
Jensen, P. K. (2010) Longevity of s
Page 157 and 158:
Effects of intraspecific competitio
Page 159 and 160:
flowering, Gangi accumulated a high
Page 161 and 162:
The seed yield of Gangi was, on ave
Page 163 and 164:
Seed yield components and yield per
Page 165 and 166:
ResultsVariation among populations
Page 167 and 168:
Table 2. Means of total seeds per p
Page 169 and 170:
Ryle, G. J. (1970). Partition of As
Page 171 and 172:
Control of Apion trifolii in red cl
Page 173 and 174:
Number of seeds /inflorescencesimil
Page 175 and 176:
population. However, in spite of th
Page 177 and 178:
Corvallis where they were debearded
Page 179 and 180:
Table 1. Effect of Palisade growth
Page 181 and 182:
Variations on potential and harvest
Page 183 and 184:
Determination of optimum desiccatio
Page 185 and 186:
Relative seed yield (%)Flowers/m225
Page 187 and 188:
Harvesting too soon after peak flow
Page 189 and 190:
Annual ryegrass seed production in
Page 191 and 192:
seed yield, kg/haExtractable Al, mg
Page 193 and 194:
ReferencesHaby, V.A. (1995). Soil m
Page 195 and 196:
Kentucky bluegrass (Poa pratensis L
Page 197 and 198:
urn residue management (Fig. 1 and
Page 199 and 200:
Comparing herbicide selectivity in
Page 201 and 202:
Development of new tetraploid Chlor
Page 203 and 204:
Following 4 (or 5) cycles of select
Page 205 and 206:
Loch, D.S., Rethman, N.F.G. & van N
Page 207 and 208:
KBGcocksfootHykorLofatimothymeadowf
Page 209 and 210:
Figure 2 Relative seed yield (%) se
Page 211 and 212:
and GA 4 . In consequence this inac
Page 213 and 214:
Table 1 The effect of trinexapac-et
Page 215 and 216:
Silberstein, T.B., Young, W.C. III,
Page 217 and 218:
inflorescece number and seed yield
Page 219 and 220:
Germination of Lolium multiflorum g
Page 221 and 222:
Effect of sowing density on seed yi
Page 223 and 224:
y-products of this grass seed crop
Page 225 and 226:
Table 2. Effect of PGR on seed yiel
Page 227 and 228:
Further culm length measurements ga
Page 229 and 230:
chlorophyllometer. Measurements wer
Page 231 and 232:
Table 2. Photosynthesis rate of fla
Page 233 and 234:
Organization of grass seed research
Page 235 and 236:
Path Coefficient and Ridge Regressi
Page 237 and 238:
through y4 (0.133). Increasing y 1
Page 239 and 240:
Newell G.J., Lee B. (1981)Ridge reg
Page 241 and 242:
Relative humidity, seed moisture co
Page 243 and 244:
Ergovaline contents in grasses from
Page 245 and 246:
11.8 % (Central East) to 40.0% (Nor
Page 247 and 248:
ReferencesBony, S. & Delatour, P. (
Page 249 and 250:
Long-term Evaluation of Annual Ryeg
Page 251 and 252:
seed yield. All systems of establis
Page 253 and 254:
Preliminary results after four year
Page 255 and 256:
Casals, Marie-LaureFNAMSImpasse du
Page 257 and 258:
Mao, PeishengForage Seed LabChina A
Page 259 and 260:
Vanasche, DavidVanasche Farm36130 N
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Texas, USA 2010 - International Herbage Seed Group

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