• Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal
Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 6, Special Issue 6 (2017)

Agronomic performance of new sugarcane (Saccharum spp. hybrid complex) genotypes as influenced by levels of nitrogen

Author(s):

Navnit Kumar and SS Pandey

Abstract:
A field experiment was conducted during 2015–16, to find out the response of three sugarcane (Saccharum spp. hybrid complex) genotypes to levels of nitrogen at Sugarcane Research Institute, Pusa, Bihar. Among the genotypes, ‘CoP 11437’ showed the highest germination (37.9%), plant population (1, 76,700/ha), dry matter accumulation (38.2 t/ha) and millable canes (1, 22,300/ha) followed by ‘CoP 11438’. Similarly, genotype, ‘CoP 14437’ also recorded significantly higher cane yield (103.7 t/ha) and sugar yield (13.1 t/ha) followed by ‘CoP 11438’ (80.2 t/ha). The maximum pol (18.37%) in juice was obtained with ‘CoP 14438’, which was statistically similar that obtained with ‘CoP 14437’ (18.16%). Genotype ‘CoP 14437’ gave the highest gross returns (2, 64,400/ha), net returns (`1, 69,600/ha), benefit: cost ratio (1.80) and N uptake (284.9 kg/ha). Application of 100% recommended dose of nitrogen significantly increased dry matter accumulation and cane yield; however, plant population and millable canes were significantly increased up to 125% recommended dose of nitrogen. Application of 75% recommended dose of nitrogen being at par with 100% recommended dose of nitrogen resulted in significantly higher pol (18.25%) content in juice over 125% recommended dose of nitrogen. Significantly maximum values of net returns (` 1, 50,100/ha), benefit: cost ratio (1.58) and N uptake (261.4 kg/ha) were recorded at 125% recommended dose of nitrogen. However, significantly higher values of available N (236 kg/ha) was obtained with 100% recommended dose of nitrogen. It was therefore inferred that genotype CoP 14437 along with 125% recommended dose of nitrogen to sugarcane was the most profitable options.

Pages: 1125-1127  |  1451 Views  222 Downloads

How to cite this article:
Navnit Kumar and SS Pandey. Agronomic performance of new sugarcane (Saccharum spp. hybrid complex) genotypes as influenced by levels of nitrogen. J Pharmacogn Phytochem 2017;6(6S):1125-1127.

Important Publications Links
Journal of Pharmacognosy and Phytochemistry Pharmacognosy

Journal of Pharmacognosy and Phytochemistry

Call for book chapter