GREEN SEED COAT COLOUR RETENTION IN LENTIL - University ...

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Figure 2.1 The Acurum ® machine at the Pulse Field Lab. 10
Table 2.2 Descriptions of the colour categories used by the Acurum ® machine. They were developed by Larry Michta, to classify green lentil from most desirable (1) to least desirable (20) seed coat colour. Score Definition 1 dark green bordering on immature 2 dark mature green (desirable) 3 medium green (desirable) 4 light green 5 light green showing signs of bleaching 6 very light green with bleaching present 7 light green in color containing bleaching and some oxidation 8 light green with oxidation 9 immature green with signs of oxidation 10 dark green with oxidation 11 salmon colored sun bleached 12 pale green bleached and oxidized 13 very pale green and bleached 14 uniform sample with light to moderate oxidation 15 moderate oxidation 16 moderate oxidation with tinge of green 17 moderate oxidation of bleached sample 18 moderate to severe oxidation 19 severely oxidized 20 oxidized non uniform sample There has been no academic research conducted with the Acurum ® machine in the past. There have been other efforts to develop machines that would classify green lentil by colour and variety. It is assumed that challenges identified in research with other machines would be similar to challenges encountered by the Acurum ® machine. Shahin and Symons (2002) reported that a colour analyzing machine prototype was being field tested by the CGC. The prototype was manufactured by Hinz Automation (Saskatoon, Saskatchewan). This system uses a flatbed scanner and image analysis software which uses neural networks for data 11
Page 1 and 2: GREEN SEED COAT COLOUR RETENTION IN
Page 3 and 4: ABSTRACT Poor seed coat colour desi
Page 5 and 6: ACKNOWLEDGEMENTS The author would l
Page 7 and 8: 7.2 Maturity and Index Score ......
Page 9 and 10: Table 4.13 Acurum index score, tota
Page 11 and 12: 1.0 INTRODUCTION Green lentil has b
Page 13 and 14: example canola. In wheat it is used
Page 15 and 16: carbohydrate, and micronutrient req
Page 17 and 18: It would also be useful for lentil
Page 19: process and categorize the data int
Page 23 and 24: 2.4 Perceived seed colour in green
Page 25 and 26: 2.6 Cotyledon chlorophyll degradati
Page 27 and 28: temperatures. The more enzyme activ
Page 29 and 30: the seed produces bleached seeds wi
Page 31 and 32: correlation between seed weight in
Page 33 and 34: used widely as a desiccant is that
Page 35 and 36: prevailing winds. A problem that oc
Page 37 and 38: and the higher the heritability est
Page 39 and 40: 4.1 Heritability Study Objectives 4
Page 41 and 42: Plant material for the study includ
Page 43 and 44: Table 4.4 Herbicide and desiccant a
Page 45 and 46: was a=0.05. The heritability was ca
Page 47 and 48: during the time taken to remove the
Page 49 and 50: normally distributed data. In 2006
Page 51 and 52: location and year explained a large
Page 53 and 54: The tester set that was included in
Page 55 and 56: etween field and phytotron index sc
Page 57 and 58: Table 4.10 shows the mean index sco
Page 59 and 60: Sutherland in 2005 produced the mos
Page 61 and 62: Table 4.12 Effect of changing the n
Page 63 and 64: wrinkling as sound seeds. It is dif
Page 65 and 66: negative relationship. The regressi
Page 67 and 68: Chlorophyll b content (mg/g) 120 10
Page 69 and 70: 1994). It is important to note howe
Page 71 and 72:
estimates of which lines produced t
Page 73 and 74:
in both years to produce two differ
Page 75 and 76:
At the time of desiccation or swath
Page 77 and 78:
a significant genotype x environmen
Page 79 and 80:
Table 5.7 Mean green index score of
Page 81 and 82:
All three groups for both desiccati
Page 83 and 84:
index score was not equal for each
Page 85 and 86:
Alternatively, the samples had less
Page 87 and 88:
sclerotinia white mold (Sclerotinia
Page 89 and 90:
6.0 GENERAL DISCUSSION Knowing whic
Page 91 and 92:
The Acurum ® machine has some pote
Page 93 and 94:
process. If small gains in desirabi
Page 95 and 96:
for more efficient selection sooner
Page 97 and 98:
8.0 REFERENCES AAFC. 2007. Agricult
Page 99 and 100:
Guiamét, J.J., E. Schwartz, E. Pic
Page 101 and 102:
Shearer, S.A., G.M. Turner, M. Coll
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