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The rapid changes in the global climate have endangered many countries including Pakistan. In this context, sowing dates play an imperative role in yield enhancement. Keeping in view the role and importance of sowing dates, five dates of sowing on 1st October, 11th October, 21st October, 1st November and 11th November were evaluated for sugar beet cv. California-KWS at the experimental research area, Faculty of Agriculture, Gomal University, Dera Ismail Khan during 2013-14, and 2014-15. The study was carried out in RCBD and replicated thrice. Data on the following parameters i.e. days to germination, germination percentage, plant height, number of leaves plant-1, leaf area plant-1, leaf and root weights plant-1, total soluble solids (%), sucrose (%), root and sugar yields (t ha-1) were included in this study. The results revealed that there were significant variations among the sowing dates treatments for all the parameters. Among sowing dates, 1st October sowing showed minimum days (7.31 & 6.46) to seed germination with maximum germination percentage (92.88 & 90.83%) during both years while sowing done on 11th October produced maximum plant height (43.46 & 43.43 cm ), number of leaves plant-1 (43.63 &43.48), leaf area plant-1 (500.46 & 493.58 cm2 ), leaf weight plant-1(485.42 & 485.44 g), root weight plant-1 (14.73.5 & 1473.4 g), sucrose (16.54 & 16.59 %), total soluble solids (18.46 & 18.43%), root yield (63.61 & 62.44 t ha-1) and sugar yield (10.57 & 10.64 t ha-1) during both years. The comparative assessment of the sowing dates showed that 11th October sowing showed better performance over all other sowing dates during both the study years. The results depict that a profitable yield can be obtained when seeds are sown on 11th October under Dera Ismail Khan conditions and hence recommended.
Imran Khan, Muhammad Iqbal, Malik Muhammad Hashim. (2020) Impact of Sowing Dates on the Yield and Quality of Sugar beet (Beta vulgaris L.) cv. California-KWS, , Proc. of the PAS: B; 57, Issue 1.
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