-94-Table 44.Mon Tresor sugar factory <strong>1961</strong> crop, actual and calculated analytical figures.Pol. % g Sucrose Fibre Java Java Sucrose DifferenceWcek 1st Exp. %cane %cane Ratio Ratio %cane in sucroseNo. juice actual actual calculated calculated % cane13.11 11.06 11.95 84.4 83.42 10.94 0.122 13.21 11.02 12.71 83.4 82.16 10.85 0.173 13.69 11.21 12.54 81.9 82.44 11.29 -0.084 14.00 11.63 12.17 83.1 83.06 11.63 0.005 14.20 11.76 12.20 82.8 83.01 11.79 -0.Q36 14.27 12.02 11.78 84.2 83.71 11.94 0.087 14.91 12.39 11.77 83.1 83.72 12.48 -0.098 14.96 12.43 12.77 83.1 82.06 12.28 0.159 15.49 12.68 12.15 81.9 83.09 12.87 --D. 1910 15.88 13.16 12.60 82.9 82.34 13.07 0.0911 16.39 13.52 12.23 82.5 82.96 13.60 --D.0812 16.89 13.94 12.32 82.5 82.87 13.99 --D.0513 17.10 13.94 12.81 81.5 82.00 14.02 --D.0814 17.35 14.05 13.32 81.0 81.15 14.08 -0.0315 17.47 14.11 13.59 80.8 80.70 14.10 0.Ql16 17.76 14.17 13.55 79.8 80.77 14.34 -0.1717 18.Q7 14.45 13.80 80.0 80.35 14.52 --D.0718 18.20 14.62 13.78 80.3 80.39 14.63 --D.0119 18.80 15.02 13.90 79.9 80.19 15.Q7 --D.0520 17.89 14.59 13.40 81.6 81.02 14.49 0.1021 18.29 14.46 14.11 79.1 79.84 14.60 --D. 1422 16.61 13.48 14.04 81.2 79.95 13.28 0.20
o..8584,.80"j::I BR E~i~c xn s-95 ---e 82a:"> 8 I".,Fig. 29. Java Ratio as a function of fibre in caneMan Tresor, <strong>1961</strong> crop.Graphs have also been drawn, figs. 30 and31, and equations worked out for two otherfactories, Mon Desert and Union Flacq, forthe <strong>1961</strong> crop. The relationships found are:o...3" 8'a:-e> 8."Mon Desert : J.R. = 99.43 -- 1.56 F %CUnion Flacq : .T.R. = 91.56 - 0.82 F %CThe maximum deviations obtained in calculatedvis true sucrose arc respectively -D.26 to +0.13and -0.15 to + 0.13, and the correlation ccefficientsbeing 0.93 and 0.89 (both significant at0.1 per cent level).18 +----~r-----_,----_._---__,IQ I1 1213Fl eRE /0 CANEFig. 30. Java ratio as a function of fibre in cane,Man Desert, <strong>1961</strong> crop.It is recommended that the method outlinedabove be adopted in future by factory chemistsfor the assessment of cane consignments fromvarious sections of estates. Since the result, of83the tests arc gencral1y not needed by theManager before the cnd of the crop, it is Letterto wait till that time before plotting the graphand calculating the relationship for a particularyear and a particular factory. Should it howeverbe necessary to obtain results earlier in the,.80crop, it would still be possible after. say, eightweeks crushing, to calculate a provisional relationshipfor the purpose.An important point to stress, however, is18 +-------r----r-----,-----__, the sampling and analysis of cane for fibre. For11131415 agronomic purposes, it is a much better propositionto sample the cane in the fields thanon the cane carrier. Five contiguous canesshould be picked at random from at least sixdifferent spots in the field, sub-sampled IIIthirds in the usual manner, and taken to thelaboratory for analysis. If a robust disintegratoris available, however, it would be more accurateto sample the cane after the knives orshredder throughout the duration of the test andto use a sub-sample for the fibre determination,in spite of the disadvantage that completedisintegration would take about 45 minutes,as already pointed out.In the absence of a heavy disintegrator, theChemist would have to resort to the CaneChipper-Rietz Disintegrator method, whichyields accurate and consistent results. Theequipment is unfortunately not available as yetin sugar factory laboratories. Until such time as,,-0"..·• e a·>~ 8 I'079-l----,---~-----r---.....,...---,'011 12FIBRe: % CAN!Fig. 31. Java ratio as a function of fibre in cane,Union Flacq, <strong>1961</strong> crop.""
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MAURITIUS SUGAR INDUSTRYRESEARCHINS
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SUGAR MANUFACTUREI. The performance
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STAFFLISTDirectorAgronomistBotanist
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SPECIALSTUDIES FUNDThe Special Stud
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INTRODUCTIONTH E act i v it i e s o
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-11-Zlb"e, ~~J2<
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-13-M.134/32M.147/44M.31/45M.202/46
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-15-varieties cultivated in Mauriti
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.. 18··the indications are that i
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-20is gratifying to find confirmati
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-~ 22--CANEDISEASESThe main patholo
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.- 24·-occupying intermediate posi
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-25-Average 1958-1961 (1960 exclude
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-27-The first results obtained from
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-29-have confirmed those obtained l
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-31-on vanous aspects of sugar manu
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-33-Some of the more important rece
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Fig 12. Top . Some of the se lf-sow
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-36 ---Table 2.Year1956195719581959
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-38-(ii)Transplantation of seedling
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-40--The efficiency of selection pr
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-42--Table 8.Distribution of trials
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-44-M.253/48 - This variety, derive
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-46 --The results for the aluminium
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-48-from moisture stress and leaves
- Page 53 and 54: - 50A linear relationship was found
- Page 55 and 56: F ig. 19 Dwarf or multiple bud dise
- Page 57 and 58: -52-Table 14.Summary of results obt
- Page 59 and 60: -54-Table 17. Nurseries established
- Page 61 and 62: Fig . 2] .Perfect stage of the red
- Page 63 and 64: -56-Several methods have been used.
- Page 65 and 66: -58-duties have been defined. The m
- Page 67 and 68: -60-664 flies, all in good state an
- Page 69 and 70: -61-(b)BiologyProgress was made wit
- Page 71 and 72: WEEDCONTROLE. ROCHECOUSTE1. HERBICI
- Page 73 and 74: -65-Table 20.Comparative efficacy o
- Page 75 and 76: CULTIVATION, IRRIGATION, CLIMATE1.
- Page 77 and 78: -69-cos cells at a depth of 6" indi
- Page 79 and 80: -71-It will be observed from the ab
- Page 81 and 82: :rwo.: 40~~a: . J S~X>""-c L JO2 52
- Page 83 and 84: -75-Table 28. Sucrose per cent cane
- Page 85 and 86: -- 77--Table 32. Syrup, massecuites
- Page 87 and 88: -79-A summary of the solids balance
- Page 89 and 90: -81-Non-sugars like silica, starch,
- Page 91 and 92: -83-Table 37.Comparison between Fil
- Page 93 and 94: Fig . 27. Isolates on osrnophilic a
- Page 95 and 96: -85--DOUWES OEKKER (1960) -- Report
- Page 97 and 98: -87-one calculated from the pol rea
- Page 99 and 100: -89~(b). THE DETER!\II\TATlO\T OF R
- Page 101 and 102: -91-The Brix of the cake is obtaine
- Page 103: -93-(SAINT ANTOINE, 1959) the 1st e
- Page 107 and 108: BY-PRODUCTS1. THE COMPOSITION OF SC
- Page 109 and 110: -99-impossible to obtain a reliable
- Page 111 and 112: -101--Fibre and insoluble carbohydr
- Page 113 and 114: -105-of research that could lead to
- Page 115 and 116: -104-REFERENCESABRAMS, J. T. (1961)
- Page 117 and 118: -107-MoistureProtein (N x 6.25)Fat
- Page 119: -109-ACKNOWLEDGMENTSExtraction of t