Page 35 - BJS vol. 36

Leaf Characteristics and Chlorophyll Concentration of .........Harvesting 27

The highest pol% was found from the variety V 3 (15.86%) in 160 DAS which was
statistically similar to the genotypes V 12 (14.21%), V 1 (13.97%) and V 11 (13.91%) in 160
DAS. On the other hand, lower pol% was found from the varieties V 13 (8.60%) and V 7
(8.86%) in 120 DAS, although there was no significance difference was found among the
varieties except V 3 in 120 DAP.Comparatively the varieties V 1 (Cauvery), V 2 (Shubrha), V 3
(HI 0044), V 4 (HI0473) and V 11 (SV893) contained higher brix and pol% at earlier maturity
stage (120 DAS) and rest of the varieties contained higher brix and pol% at mid maturity
stage (140 and more DAS). The brix and pol% of beet were significantly varied in
different DAS even within the varieties of sugarbeet. Similar results were also reported by
Rahman et al. (2013), Abd EL-Gawad et al. (2000) and Kandil et al. (2002).

Table 3. Brix and pol% at different age of plant

Genotype Brix Pol%
s 120 DAS 140 DAS 160 DAS 180 DAS 120 DAS 140 DAS 160 DAS 180 DAS
V 1 12.23 16.83 19.86 18.83 10.21 13.02 13.97 12.56
V 2 12.30 16.16 19.10 16.86 10.07 13.20 12.44 12.75
V 3 12.50 17.20 20.46 19.33 10.93 13.03 15.86 13.78
V 4 11.60 15.06 19.26 16.06 10.33 12.20 12.73 13.52
V 5 11.66 14.96 17.73 16.20 9.33 11.92 13.71 13.50
V 6 11.60 16.86 20.73 17.93 9.28 13.05 14.40 13.48
V 7 11.20 14.86 18.66 16.66 8.86 12.23 13.65 13.63
V 8 12.30 15.93 18.86 16.40 9.60 11.83 13.76 12.26
V 9 12.26 16.36 20.00 18.13 9.68 13.62 13.41 14.43
V 10 11.13 16.03 21.70 17.00 9.08 13.39 12.90 11.32
V 11 12.60 16.60 22.03 19.23 10.40 13.46 13.91 13.25
V 12 11.56 15.40 22.16 18.86 9.13 12.59 14.21 12.85
V 13 11.10 15.23 19.56 15.33 8.60 12.28 12.89 11.74
V 14 12.10 14.76 20.26 16.33 9.46 12.01 12.09 11.98
V 15 12.23 15.67 20.73 16.33 9.58 13.30 12.16 12.00
V 16 12.26 15.00 23.03 17.26 9.66 12.42 12.36 11.72
V 17 12.30 14.16 21.80 17.33 9.78 12.34 13.52 12.20
LSD (0.05) 2.18 1.98
CV (%) 8.27 10.11

In general, Leaf fresh and dry weight were found higher in earlier mature stage
(120 DAS), LAI was found better at early to mid-maturity level (120-160 DAS) and
drastically reduced to late maturity level (180 DAS), Chlorophyll concentration was found
higher in early maturity stage (120 DAS) for maximum cultivars of beet. Comparatively V 1
(Cauvery), V 2 (Shubrha), V 3 (HI 0044),V 4 (HI 0473) and V 11 (SV 893) were identified as
early harvesting and rest of the varieties as mid harvestinggenotypes for their variation of
leaf physiological traits (Leaf fresh weight, Leaf dry weight, LAI, chlorophyll) related with
sucrose content.