Texas, USA 2010 - International Herbage Seed Group

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5 - 08 - 32 - A17 - 08 - 18 - A16 - 08 - 49 - A11 - 07 - 49 - A12 - 07 - 32 - A13 - 07 - 10 - A14 - 07 - 10 - A18 - 07 - 10 - A19 - 08 - 10 - A110 - 07 - 81 - A211 - 07 - 81 - A212 - 07 - 49 - A213 - 07 - 32 - A215 - 08 - 49 - A214 - 08 - 32 - A217 - 08 - 10 - A216 - 08 - 10 - A2N supply (kg/ha)Seed yiled index (T2/T3)Figure 2: Effect of N fertilization (balance method) on seed yield compared to usual farmer practice (2007and 2008) – From 1 to 9 (left) crops in first year of production, from 10 to 16 (right) crops in second yearof productionT2 - balance method(N kg ha-1)T3 - farmer practices(N kg ha-1)seed yield differenceT2 / T3 (%)(T3= 100)180160140120100806040200100%0%79
Plant N uptakeN unavailableSoil nitrogen content at theend of winterMineralization of vegetalresiduesMineralization humusMineralization organicmatterT2 - N calculatedby balance method(and real N supply) (kg ha-1)T3 - Farmer practiceN mineral supply (kg /ha)Différence T2 - T3(kg /ha)Table 1: Seed crops of tall fescue studied in 2007 and 2008 with N fertilization comparison.Nitrogen mineral supply (T2) is calculated with N balance method (FNAMS abacus)N° Trials :(Year, Locationand Frenchdepartment )N-W: north-westS-W: south-westM: middleN-E: north-eastCultivars(T: turf typeF: forage type)N PlantNeeds(kg ha-1)N Soil Furniture (kg ha-1)Compared objectsCrops in first year of production (A1)1 (07 / N-W / 49) TOMAHAWK (T) 20 11 0 32 0 140 (140) 170 - 302 (07 / S-W / 32) VILLAGEOISE (T) 20 82 0 25 0 73 (81) 110 - 283 (07 / N-E / 10) TOMAHAWK (T) 20 7 20 22 0 130 (130) 110 + 204 (07 / N-E / 49) DULCIA (F) 160 20 7 20 22 0 130 (130) 110 + 205 (08 / S-W / 32 ) VILLAGEOISE (T) 30 88 -20 22 0 100 (100) 140 - 406 (08 / N-W / 49 ) VILLAGEOISE (T) 20 13 20 28 0 119 (115) 145 - 307 (08 / M / 18 ) VILLAGEOISE (T) 15 9 20 33 0 113 (121) 154 - 338 (08 / N-E / 10 ) TOMAHAWK (T) 30 12 20 23 0 135 (135) 120 + 159 (08 / N-E / 10 ) DULCIA (F) 30 12 20 23 0 135 (135) 120 + 15Crops in second year of production (A2)10 (07 / S-W / 81) DULCIA (F)30 42 0 27 0 120 (110) 151 - 4111 (07 / S-W / 81) VILLAGEOISE (T) 20 21 0 20 0 139 (129) 169 - 4012 (07 / N-W / 49) VILLAGEOISE (T) 20 34 0 32 0 115 (115) 145 -3013 (07 / S-W / 32) BELFINE (F) 20 28 0 25 0 126 (130) 138 - 1216014 (S-W / 32 ) VILLAGEOISE (T) 30 10 0 22 0 158 (158) 120 + 3815 (N-W / 49 ) TOMAHAWK (T) 20 13 0 21 0 146 (143) 113 + 3016 (N-E / 10 ) TOMAHAWK (T) 30 10 0 23 0 157 (160) 120 + 4017 (N-E / 10 ) DULCIA (F) 30 8 0 23 0 159 (160) 120 + 4080
Page 1 and 2:
Proceedings of the 7th Internationa
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Table of ContentsORAL PRESENTATIONS
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Seed yield components and yield per
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International Herbage Seed Conferen
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16:15 - 16:30 Reliability of salini
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Hotel expense is covered for night
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40,000 were slaves (McDonald, 2007)
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Fig. 1. Texas AgriLife Research and
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$7 billion for cattle, $3 billion f
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principle and encourages both AgriL
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eceived by growers, the above perce
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seed conditioning plants are locate
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Table 4.Hectares of open-field burn
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system, a seed crop is produced fro
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Fig. 1. Land resource areas of Texa
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y land owners. Seed yields are low
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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: Yield (% maximum)ConclusionThe resu
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
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deal of investigation into the caus
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genes and subsequent ability to pro
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Gatenby, W.A., S.C. Munday-Finch, A
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Control of Vulpia myuros in red fes
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The strip design provides an opport
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The pot experiments did not reveale
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CharacterWeed abundance1 A few plan
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Jensen, P. K. (2010) Longevity of s
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Effects of intraspecific competitio
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flowering, Gangi accumulated a high
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The seed yield of Gangi was, on ave
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Seed yield components and yield per
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ResultsVariation among populations
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Table 2. Means of total seeds per p
Page 169 and 170:
Ryle, G. J. (1970). Partition of As
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Control of Apion trifolii in red cl
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Number of seeds /inflorescencesimil
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population. However, in spite of th
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Corvallis where they were debearded
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Table 1. Effect of Palisade growth
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Variations on potential and harvest
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Determination of optimum desiccatio
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Relative seed yield (%)Flowers/m225
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Harvesting too soon after peak flow
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Annual ryegrass seed production in
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seed yield, kg/haExtractable Al, mg
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ReferencesHaby, V.A. (1995). Soil m
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Kentucky bluegrass (Poa pratensis L
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urn residue management (Fig. 1 and
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Comparing herbicide selectivity in
Page 201 and 202:
Development of new tetraploid Chlor
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Following 4 (or 5) cycles of select
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Loch, D.S., Rethman, N.F.G. & van N
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KBGcocksfootHykorLofatimothymeadowf
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Figure 2 Relative seed yield (%) se
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and GA 4 . In consequence this inac
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Table 1 The effect of trinexapac-et
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Silberstein, T.B., Young, W.C. III,
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inflorescece number and seed yield
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Germination of Lolium multiflorum g
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Effect of sowing density on seed yi
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y-products of this grass seed crop
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Table 2. Effect of PGR on seed yiel
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Further culm length measurements ga
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chlorophyllometer. Measurements wer
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Table 2. Photosynthesis rate of fla
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Organization of grass seed research
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Path Coefficient and Ridge Regressi
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through y4 (0.133). Increasing y 1
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Newell G.J., Lee B. (1981)Ridge reg
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Relative humidity, seed moisture co
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Ergovaline contents in grasses from
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11.8 % (Central East) to 40.0% (Nor
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ReferencesBony, S. & Delatour, P. (
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Long-term Evaluation of Annual Ryeg
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seed yield. All systems of establis
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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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