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Growth, yield and quality of high sugarcane (Saccharum officinarum) genotypes as influenced due to planting seasons and fertility levels


Growth, yield and quality of high sugarcane (Saccharum officinarum) genotypes as influenced due to planting seasons and fertility levels



Indian Journal of Agricultural Sciences 77(9): 569-573



ISSN/ISBN: 0019-5022

An experiment was conducted for two consecutive cropping seasons during 2002-03 and 2003-04 at Lucknow, to evaluate 3 sugarcane (Saccharum officinarum) genotypes ('CoLk 941 V, 'CoLk 9412' and 'CoLk 94184') under 3 N, P and K levels (150, 200, 250 kg N; 45, 60, 75 kg P and 45, 60, 75 kg K/ha) to identify tillering behaviour, growth and sucrose accumulation of these genotypes under different planting seasons. Tiller number increased (149 500/ha and 140 600/ha in spring and summer cane respectively) with the increase in the nutrient doses up to 200, 60 and 60 kg NPK/ha. Planting seasons also influenced tillering pattern significantly (144 900/ha in spring and 127 300/ha in summer planted cane during September). Spring planted sugarcane gave significantly greater number of tillers compared to summer planted cane. 'CoLk 94184' gave the highest number of tillers (197 800/ha and 159 200/ha in spring and summer planted cane respectively) as compared to 'CoLk 9411' and 'CoLk 9412'. Significantly higher cane yield (77.4 tonnes/ha) was harvested with genotype 'CoLk 94184'. It also had the higher pol percentage in juice (18.49) at 10-month stage in spring planted cane. Individual cane length (207.4 cm) and cane weight (693.8 g) in spring planted cane increased significantly up to 200, 60 and 60 kg NPK/ha. Ratoon of the genotype 'CoLk 94184' gave highest number of millable canes (133 900/ha) and higher cane length (186.8 cm). Maximum ratoon yield (70.46 tonnes/ha) and commercial cane sugar (9.39 tonnes/ha) were obtained with 'CoLk 94184'. Fertility level of 200, 60, 60 kg NPK/ha was optimum for better growth, juice quality and cane yield during spring as well as summer planting in north Indian conditions.

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