India is one of the most vulnerable countries to climate change and its impact on agricultural production and livestock. Sorghum (Sorghum bicolor) is an important food crop of India cultivated in tropical and subtropical climates, especially the semiarid tropics; varying environmental attributes significantly affect its duration and yield. Therefore, the present research aimed to evaluate the potential of dual-purpose sorghum under varying sowing windows and crop geometry. The experiment was conducted in Eastern block farm of Tamil Nadu Agricultural University during the summer season- 2022. The experiment was laid out in strip plot design with three different dates of sowing in the main plot, i.e., D1 - First fortnight of February, D2 - First fortnight of March and D3 - First fortnight of April and six different crop geometries in the subplot viz., 45 x 15 cm (S1),45 x 10 cm(S2), 45 x 5 cm (S3), 30 x 15 cm (S4),30 x 10 cm (S5) and 30 x 5 cm (S6) and replicated thrice.The results revealed that sowing during the first fortnight (I FN) of April with a spacing of 45x 15 cm resulted in maximum grain yield(2585 kg/ha) and for fodder yield, April I FN sowing with a crop geometry of 30x 5 cm resulted in maximum green biomass (43.6 t/ha) as well as dry matter production. So, spacing of 30x 5 cm helps in better utilization of resources along with maximum fodder yield.
Crop Geometry, Dual purpose Sorghum, Sowing Window, Yield
Andrade, F. H., Calvino, P., Cirilo, A. & Barbieri, P. (2002). Yield responses to narrow rows depend on increased radiation interception. Agronomy Journal, 94(5), 975-980.
Cavalaris, C. (2017). Effects of row spacing on growth, yield and quality parameters of sweet sorghum. Journal of Agricultural Faculty of Gaziosmanpasa University, 34(1), 229-237.
Craufurd, P.Q., Mahalakshmi, V., Bidinger, F.R., Mukuru, S.Z., Chantereau, J., Omanga, P.A., Qi, A., Roberts, E.H., Ellis, R.H., Summerfield, R.J. et al. (1999) Adaptation of sorghum: Characterization of genotypic flowering responses to temperature and photoperiod. Theor. Appl. Genet., 900–911.
Eldie, Y.D. & Fadul, H.A. (2017). Effect of plant spacing on growth and yield components of two sorghum (Sorghum bicolor L.) varieties under rain fed conditions. Al Fashir University, Sudan, 1-9.
Fernandez, C. J., Fromme, D. D. & Grichar, W. J. (2012). Grain sorghum response to row spacing and plant populations in the Texas Coastal Bend Region. International Journal of Agronomy, 1-6. doi:10.1155/2012/238634.
Kumar, S., Yakadri, M. & Rao, S. S. (2012). Effect of Nitrogen Levels and Planting Geometry on sweet sorghum (Sorghum bicolor) growth, stalk, and grain yields. Crop Research, 44(1 &2), 33-36.
Mishra, J. S., Kumar, R., Ravikumar, S., Kumar, R., Prakash, V., Rao, K. K. & Bhatt, B. P. (2017). Production potential of improved grain sorghum cultivars (Sorghum bicolor) under staggered plantings in non-traditional areas of Eastern India. Indian Journal of Agronomy, 62 (1), 74-80.
Naoura, G., Emendack, Y., Sawadogo, N., Djirabaye, N., Tabo, R., Laza, H. & Atchison, E. A. (2023). Assessment of Photoperiod Sensitivity and the Effect of Sowing Date on Dry-Season Sorghum Cultivars in Southern Chad. Agronomy, 13(3), 932. https://doi.org/10.3390/agronomy13030932.
Sanmugapriya, L. & Kalpana, R. (2017). Evaluation of Spacing and Fertilizer Doses for Multicut Forage Sorghum under Irrigated Condition. Chemical Science Review and Letters, 6(24), 2190-2194.
Zamir, M. S. I., Ahmad, A. H., Javeed, H. M. R. & Latif, T. (2011). Growth and Yield Behavior of Maize Hybrids (Zea mays L.) towards different plant spacing. Journal of Agriculture and Biology, 2(46), 16-24.
Zander, A., Lofton, J., Harris, C. & Kezar, S. (2021). Grain sorghum production: Influence of planting date, hybrid selection, and insecticide application. Agrosyst. Geosci. Environ., 4, 1-9. doi: 10.1002/agg2.20162.
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