Abstract
A field experiment with three wheat varieties at different sowing dates on two crop establishment methods was accomplished to identify the optimum sowing date at AFU Rampur during winter season of 2014/2015. Three wheat varieties namely: Tillotama, Danfe and Vijay sown on three dates: 14th November, 29th November, and 14th December under two crop establishment practices: Conservational and conventional agriculture were evaluated with strip –split plot design in three replications. The field data onyield attributes and yields were collected. Earlier sowing on 14th November gave the highest yield (3427.15 kg ha-1), total dry matter (8154.44 kg ha-1), with longest days to crop maturation (133.11 days). In case of varieties, Vijay gave the highest grain yield (3458.61 kg ha-1) and total dry weight (4456.11 and 8832.42 kg ha-1 respectively) with earliest days to heading and maturity. The straw yield was the highest for 29th November sowing (5821 kg ha-1) and for Danfe variety (5756 kg ha-1). Vijay variety recorded the highest test weight (43.60 g) and highest harvest index (35.89%) even though with the lowest effective tillers per square meter (320.83), it proved to be the most promising variety. Int. J. Appl. Sci. Biotechnol. Vol 5(2): 250-255
Highlights
Wheat (Triticum aestivum L.) is one of the principal cereal crops of the world, growing in almost 215 million hectares of the land each year
The terai part of Nepal including the strip of Shivalik hills (0.6 million hectare) falls under the Indo-Gangetic plains(IGP) where rice-wheat is the major cropping system and 84% of the total wheat is cultivated after rice harvesting (Chauhan et al, 2012; Timsina and Conner, 2001).With the increasing population and purchasing power, demand on food has increased which is impossible to meet with the present varieties, technologies and management practices
Number of Effective Tillers per Square Meter The number of effective tillers per meter square was found insignificant for crop establishment methods and date of sowing
Summary
Wheat (Triticum aestivum L.) is one of the principal cereal crops of the world, growing in almost 215 million hectares of the land each year. The area under wheat cultivation in Nepal is 0.7 million ha and the production is 1.8 million metric ton with the average productivity of 2.50 metric ton per hectare for the year 2013/14. The terai part of Nepal including the strip of Shivalik hills (0.6 million hectare) falls under the Indo-Gangetic plains(IGP) where rice-wheat is the major cropping system and 84% of the total wheat is cultivated after rice harvesting (Chauhan et al, 2012; Timsina and Conner, 2001).With the increasing population and purchasing power, demand on food has increased which is impossible to meet with the present varieties, technologies and management practices. All the data analyzed were put to DMRT for mean comparison by selecting 5% level of significance
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