National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted during the spring season of 2017 at Research farm of Sugarcane Research Institute, Dr. Rajendra Prasad Central Agricultural University, Pusa (Samastipur), Bihar to study the “Impact of exogenously applied plant growth regulators on yield attributes and yield of sugarcane (Saccharum spp. hybrid complex)”. The experiment was laid out in randomized block design and replicated thrice. The treatment comprised of ten treatments viz., conventional planting/farmers practice (T1), planting of setts after overnight soaking in water (T2), planting of setts after overnight soaking in cattle dung, cattle urine and water slurry in 1: 2: 5 ratios (T3), planting of setts after overnight soaking in 50 ppm ethrel solution (T4), planting of setts after overnight soaking in 100 ppm ethrel solution (T5), T1 + GA3 spray @ 35 ppm at 90, 120 and 150 DAP (T6), T2 + GA3 spray @ 35 ppm at 90, 120 and 150 DAP (T7), T3 + GA3 spray @ 35 ppm at 90, 120 and 150 DAP (T8), T4 + GA3 spray @ 35 ppm at 90, 120 and 150 DAP (T9) and T5 + GA3 spray @ 35 ppm at 90, 120 and 150 DAP (T10). Planting of setts after overnight soaking in 50 ppm ethrel solution followed by foliar spray of GA3 @ 35 ppm at 90, 120 and 150 DAP showed significantly higher cane and sugar yield as compared to rest of the treatments which was due to improvement in yield attributes like number of tillers, number of millable canes, internodal length, number of nodes/cane, cane diameter, single cane weight and cane: top ratio.
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