Rice (Oryza sativa. L) genetic diversity for early vigor and drought ...

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Introduction5050Frequency403020Exp1(Field, IRRI)Exp 2(greenhouse)4030201010000 5 10 15 20 25Normalized tiller number (g MJ -1 m -2 °Cd -1 )70400 2 4 6 8Normalized shoot dry weight(g MJ -1 m -2 °Cd -1 )605030Frequency403020201010012 16 20 24Development rate (0.001 Leaves °Cd -1 )600501.006 1.008 1.010 1.012 1.014 1.016Relative growth rate (g g -1 °Cd -1 )5040Frequency4030203020101000.0 0.5 1.0 1.5 2.0Leaf No. 7 width (cm)00 20 40 60 80 100 120Leaf No. 7 length (cm)Figure 2: Frequency distribution in Exp1 and Exp2 of variables normalized for a photothermalaccumulation PT of 2.2x10 6 MJ. °Cd.m - ²: plant tiller number, plant shoot dry weight, estimated finalwidth and length of leaf 7 on the main stem, developmental rate and relative growth rate (RGR, g.g -1 .°Cd -1 ). Average values on 3 and 2 replicates respectively in Exp1 and Exp2.40
IntroductionCorrelations among traits across genotypesCorrelations among observed variables across genotypes showed similar patterns for Exp1 (Table 1)and Exp2 (Table 2). R values had the same orientation between experiments for all pairs of variablesand were significant (P0.6 was observed between tiller number and dry weight relatedvariables (RGR and SDW). The strongest correlation in Exp2 was between DR and RGR (R=0.69),although tiller number vs. RGR and DR were only slightly less correlated. The high correlationbetween SDW and RGR is of no significance because these two variables were not independentlymeasured.In both experiments, LL1 was positively (P
Page 1 and 2: IntroductionMontpellier Supagro2, P
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Page 6 and 7: IntroductionTable of contentsAknowl
Page 8 and 9: IntroductionIntroductionCONTEXTHost
Page 10 and 11: IntroductionRice crop performance u
Page 12 and 13: IntroductionEarly vigor was also re
Page 14 and 15: Introductionconsidering traits in a
Page 16 and 17: IntroductionPhotosynthesis is one o
Page 18 and 19: IntroductionThis PhD work focuses t
Page 20 and 21: IntroductionFigure 3. Dry-down expe
Page 22 and 23: IntroductionREFERENCESAsch, F., Sow
Page 24 and 25: IntroductionGlaszmann, J. C., Benoi
Page 26 and 27: IntroductionMcNally, K. L., Childs,
Page 28 and 29: Introductionbiotechnologically and
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Page 32 and 33: IntroductionINTRODUCTIONEarly vigor
Page 34 and 35: IntroductionThe underlying hypothes
Page 36 and 37: IntroductionMeasurement of environm
Page 38 and 39: IntroductionRESULTSRange of environ
Page 42 and 43: IntroductionTable 2: Matrix of corr
Page 44 and 45: Introductionwhether DR affected RGR
Page 46 and 47: Introductiontwo different rice dive
Page 48 and 49: IntroductionCONCLUSIONSThis study t
Page 50 and 51: IntroductionMcNally K, Childs KL. (
Page 52 and 53: IntroductionChapter II : Phenomics
Page 54 and 55: Introductiongrowth (leaf appearance
Page 56 and 57: IntroductionTable 1 Description of
Page 58 and 59: IntroductionFTSW ' AW WPFC WP(Eq.1)
Page 60 and 61: IntroductionIn Eq.5 d and c are the
Page 62 and 63: IntroductionFigure 1 Factorial plan
Page 64 and 65: IntroductionEffect of water deficit
Page 66 and 67: IntroductionRelations between const
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Page 70 and 71: IntroductionGenotype clustering bas
Page 72 and 73: IntroductionSimilar numbers of vari
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Page 76 and 77: IntroductionADP-glucose pyrophospho
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Page 82 and 83: IntroductionTisne, S., Schmalenbach
Page 84 and 85: IntroductionChapter III : Does earl
Page 86 and 87: Introductionrate (DR, defined as th
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Introduction10AM to monitor water l
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IntroductionSpearman correlation an
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IntroductionTable 1. Broad sense he
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IntroductionAll drought response va
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IntroductionDo genotype groups havi
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Introductioninvestigated, but none
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IntroductionTable 6 Partial conting
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Introductiong.PT -1cm.leaf rank -13
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Introductionbecause in rapidly expa
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IntroductionThe normalization of TR
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Introductionmonitoring of transpira
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IntroductionKato, Y., Hirotsu, S.,
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IntroductionZhao, D. L., Atlin, G.
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IntroductionSynthesis, discussion a
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Introduction(Phenomics of Rice for
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IntroductionConsequently, as descri
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Introduction Depending on the genot
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Introductionunder well watered cond
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IntroductionDiversity panels can al
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IntroductionRichards, R. A. and Luk
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IntroductionAppendix I Article Luqu
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Introductiontraits (Chapman et al.
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Introductiona- Organ initiation rat
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IntroductionSome model parameters w
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Introductionshow restrained tiller
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IntroductionPlasto:CR (0.730) > SDW
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Introductioneffects on early plant
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Introductionassimilate invested, th
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Introductionsignal state variable.
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IntroductionItoh JI, Hasegawa A, Ki
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IntroductionTABLESTable 3 : list of
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IntroductionTable 3. Stepwise multi
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IntroductionIctMGRPlastoKrespTbKdfE
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IntroductionTDW (g)108642DR = 0.025
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Introductionétablissement de la cu
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Rice (Oryza sativa. L) genetic diversity for early vigor and drought ...

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