EFFECT OF PLANTING DATES ON THE GROWTH AND YIELD OF SWEETPOTATO GENOTYPES AT SYLHET IN BANGLADESH

A A Shimu, M S Islam, A C Das and A Biswas
Journal of the Sylhet Agricultural University, Volume 3, Issue 1, 2016, Pages 41-44

Abstract:

The study was conducted during September 2013 to March 2014 at the experimental field of Sylhet Agricultural University with a view to characterize and evaluate the growth and yield of three exotic sweetpotato genotypes viz. SP004, SP006 and SP007 planted at three dates viz., 1 September, 1 October and 1 November 2013 following randomized complete block design (Factorial) with three replications. Growth and yield of sweetpotato were largely influenced by genotypes. The highest number of storage roots plant-1 was recorded from the genotype SP006 (4.93) which were identical to SP004 (4.44). The corresponding highest storage root yield plant-1 (381.44 g) and hectare-1 (21.01 t) was also measured from the genotype SP006 while it was the lowest for SP007 (18.03 t ha-1). Date of planting did not influence the growth and yield of sweetpotato significantly. Average storage root yield hectare-1 for 1 November planting was 20.5 t ha-1 followed by 1 October (20.13 t) and 1 September (18.36 t ha-1) planting. However, among the genotypes, SP007 yielded the highest (22.5 t ha-1) planted at 1 November followed by 1 October planting (21.9 t ha-1). Similar yield was also exhibited by the genotype SP006 which produced 21.9 t and 21.6 t of storage root hectare-1 from 1 October and 1 November planting, respectively.

Keywords:

Genotypes, planting dates, sweetpotato, yield


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A A Shimu, M S Islam, A C Das and A Biswas. 2016. EFFECT OF PLANTING DATES ON THE GROWTH AND YIELD OF SWEETPOTATO GENOTYPES AT SYLHET IN BANGLADESH, Journal of the Sylhet Agricultural University 3(1): 41-44.