Evaluating the seasonal accumulation of Heat units as an agroclimatic indicator on Baby corn (Zea mays L.) under different sowing windows
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https://orcid.org/0000-0003-4370-6049
SP. Ramanathan
S. Kokilavani
K. Chandrakumar
M. K. Kalarani
Abstract
Temperature determines the plant's growth and development, which decides the onset of different phenophasic stages of the Baby corn. This study aimed to evaluate the phenological behaviour and yield of Baby corn (Zea mays L.) influenced by sowing windows and heat units with the field investigations carried out during winter (January – April) and kharif (June – September) 2022 at Eastern Block Farm of Tamil Nadu Agricultural University, Coimbatore. Growing Degree Days (GDD), Photo Thermal Units (PTU), Helio Thermal Units (HTU), Relative Temperature Disparity (RTD), Heat Unit Efficiency (HUE) and seasonal efficiency were calculated at different phenological stages. The results revealed that early attainment of phenophases was noticed during winter (62.5 days - January 21st to 27th April) than kharif (77.1 days – 15th June to 4th October). Among seasons, higher accumulation of GDD (1553) and PTU (19099) was observed during kharif 2022, whereas maximum accumulation of HTU (9923) and RTD (2146) was observed in winter 2022. Seasonal efficiency was higher during kharif (118) than during the winter season (81). The sowing windows significantly influenced the higher accumulation of heat units and yield attributes. Hence, higher yield (11922.7 kg ha-1) and HUE (7.3) were obtained during kharif than in winter 2022 (yield – 7849 kg ha-1 and HUE – 5.8). Weather parameters showed a negative correlation except RH-I, WS, SR and HUE during winter 2022 (R2=0.802) and RH-II, WS, RF, Daylength, HUE during kharif 2022, which had a positive correlation (R2=0.795). Baby corn is highly sensitive to increasing temperature. Hence, the study expresses the effect of varying ambient temperature on the duration between the phenological stages and yield.
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Baby corn, Cob yield, Phenology, Sowing windows, Seasonal heat units
Ben-Asher, J., Garcia y Garcia, A. & Hoogenboom, G. (2008). Effect of high temperature on photosynthesis and transpiration of sweet corn (Zea mays L. var. rugosa). Photosynthetica, 46(4), 595-603.
Borowiecki, J. (1992). Effect of the sowing date of maize cultivars with various lengths of growth period on the rates of development and ripening. PamietnikPuawski., 101: 123-136.
Choudhury, A. K., Molla, M. S. H., Zahan, T., Sen, R., Biswas, J. C., Akhter, S. & Hossain, A. (2021). Optimum Sowing Window and Yield Forecasting for Maize in Northern and Western Bangladesh Using CERES Maize Model. Agronomy Journal., 11(4), 635.
Crop Production Guide (2020). Tamil Nadu Agricultural University crop production guide for Agriculture (. https://tnau.ac.in/research/wp-content/uploads/sites/60/2020/02/Agriculture-CPG-2020.pdf).
Dahmardeh, M. (2012). Effects of sowing date on the growth and yield of maize cultivars (Zea mays L.) and the growth temperature requirements. African J. Biotechnol., 11(61), 12450-12453.
Dar, E. A., Brar, A. S. & Yousuf, A. (2018). Growing degree days and heat use efficiency of wheat as influenced by thermal and moisture regimes. J. of Agrometeorol., 20(2), 168-170.
Das, S., Ghosh, G., Kaleem, M. D. & Bahadur, V. (2008, February). Effect of different levels of nitrogen and crop geometry on the growth, yield and quality of baby corn (Zea mays L.). In Symposium on the Socio-Economic Impact of Modern Vegetable Production Technology in Tropical Asia 809 (pp. 161-166).
Girijesh, G. K., Kumara, A. S., Sridhara, S., Dinesh Kumar, M., Vageesh, T. S. & Nataraju, S. P. (2011). Heat use efficiency and helio-thermal units for maize genotypes as influenced by dates of sowing under southern transitional zone of Karnataka state. Int. J. Sci. nature, 2(3), 529-533.
Haider SA, Alam MZ, Alam MF. & Paul NK. (2003). Influence of different sowing dates on the phenology and accumulated heat units in wheat. J. Biol Sci. 3(10), 932-939.
Hatfield, J. L. & Prueger, J. H. (2015). Temperature extremes: Effect on plant growth and development. Weather and Climate Extremes, 10, 4-10.
Hemalatha, S., Sreelatha, D., Anuradha, M., & Kumar, R. S. (2013). Crop weather relations in maize (Zea mays L.). Journal of Agrometeorology, 15(2), 165-166.
Iizumi, T. & Ramankutty, N. (2015). How do weather and climate influence cropping area and intensity? Global Food Security, 4, 46-50.
Iwata F. (1984). Heat unit concept of crop maturity. Physiological aspects of dryland farming (Gupta, US ed).
Jackson ML. (1973). Soil Chemical Analysis, Prentice Hall of India. Pvt. Ltd., New Delhi, 498.
Jan, B., Bhat, M. A., Bhat, T. A., Yaqoob, M., Nazir, A., Bhat, M. A. & Zuan, A. T. K. (2022). Evaluation of seedling age and nutrient sources on phenology, yield and agrometeorological indices for sweet corn (Zea mays saccharata L.). Saudi J. Biological Sci., 29(2), 735-742.
Kumar, R., Bohra, J. S., Kumawa, N. & Singh, A. K. (2015). Fodder yield, nutrient uptake and quality of baby corn (Zea mays L.) as influenced by NPKS and Zn fertilization. Research on Crops, 16 (2): 243-249. DOI: 10.5958/2348-7542.2015.00036.4
Major, D. J., D R Johanson, J W Tanner. & I. C. Anderson. (1975). Effect of day length and temperature on soybean development, Crop Sci., 15, 174-179.
Nataraj, D., Murthy, K. N. & Viswanath, A. P. (2011). Economics of baby corn cultivation under sole and intercropped situation with leguminous vegetables. Agri. Sci. Digest-A Research J., 31(3), 211-213.
Naveen S. A., S. Kokilavani, S. P. Ramanathan, G. A. Dheebakaran & S. Anitta Fanish (2020). Influence of Weather Parameters and Thermal Time Approach on Green Gram at Coimbatore, Tamil Nadu. IJECC, 10(12), 1-5. Article no. IJECC.62545.
Olsen, S. R., Cole, C. V., Watanabe, F. S. & Dean. L. A. (1954). Estimation of available phosphorus in soils by extraction with NaHCO3, USDA Cir.939. U.S. Washington.
Rajput, R. P. (1980). Response of soybean crop to climatic and soil environments. Ph. D Thesis, IARI, New Delhi, India.
Ranjan, S. & Sow S. Baby Corn: (2021). A crop with immense importance. Agriculture & Food: E-Newletter. Available from: https://www.researchgate.net/publication/349318985_Baby_Corn_A_Crop_with_Immense_Importance.
Sharma, R., Kumar, D. S., Brar, A. S. & Singh, S. P. (2021). Phenological behaviour of gobhi sarson (Brassica napus L.) and thermal indices as influenced by drip irrigation and fertigation schedules under semi-arid subtropical condition of Punjab. J. Agrometeorol., 23(4), 416-422.
Shrestha, U., Amgain, L. P., Karki, T. B., Dahal, K. R. & Shrestha, J. (2016). Effect of sowing dates and maize cultivars in growth and yield of maize along with their agro-climatic indices in Nawalparasi, Nepal. J. Agri Search, 3(1), 57-62.
Sowmiya, R., Krishnan, R., Jeyarani, S. & Chandrasekhar, C. N. (2022). Influence of agro meteorological indices on different sowing time of irrigated maize in Western agro-climatic zone of Tamil Nadu. Madras Agrl. J., 109, 1.
Stanford, G. & English, L. (1949). Use of the flame photometer in rapid soil tests for K and Ca. https://doi.org/10.2134/agronj1949.00021962004100090012x.
Subbiah, B. V. & Asija, G. L. (1956). A rapid procedure for the estimation of available nitrogen in soils. Curr. Sci. 25, 259-260.
Thavaprakaash, N., Jagannathan, R. & Velayudham, K. (2007). Seasonal influence on phenology and accumulated heat units in relation to yield of baby corn. Int. J. Agri. Res., 2, issue 9: 826-831. DOI: 10.3923/ijar.20 07.826.831
Walkley, A. & Black, I.A. (1934). An Examination of the Method for Determining Soil Organic Matter and Proposed Modification of the Acid Titration Method. Soil Science, 37, 29-38. http://dx.doi.org/10.1097/00010694-193401000-00 003.
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