Effect of Drought Stress on Morpho Phenological and Yield Parameters in Sorghum Genotypes

Navyashree R *

Department of Crop Physiology, College of Agriculture, Dharwad, UAS, Dharwad – 580005, India.

Mummigatti U V

Department of Crop Physiology, College of Agriculture, Dharwad, University of Agricultural Sciences, Dharwad-580005, Karnataka, India.

Nethra P

Department of Crop Physiology, College of Agriculture, Dharwad, University of Agricultural Sciences, Dharwad-580005, Karnataka, India.

Basavaraj B

Department of Molecular Biology and Biotechnology, College of Agriculture, Dharwad, University of Agricultural Science, Dharwad-580005, Karnataka, India.

Hanamaratti N G

AICRP on Sorghum, MARS, University of Agricultural Sciences, Dharwad, India.

*Author to whom correspondence should be addressed.


Abstract

Drought stress is a major challenge for sorghum production, particularly during the reproductive stage. This study investigated the effects of drought stress on sorghum genotypes, focusing on their morpho-phenological characteristics and yield parameters. A field experiment was conducted over two rabi seasons (2021-22 and 2022-23) at the University of Agricultural Science, Dharwad, India. Twenty sorghum genotypes were evaluated under both irrigated and rainfed conditions using a split-plot design with two replications. Water stress reduced sorghum plant height, with a mean height of 190.41 cm under irrigated conditions and 176.50 cm under rainfed conditions at 90 days after sowing. Water stress advanced the physiological maturity by 10 days compared to irrigated condition. Yield parameters revealed significant differences, the mean grain yield was 70.23 g/plant for irrigated conditions and 54.54 g/plant for rainfed conditions. Water stress also had an impact on harvest index, with irrigated conditions having a mean harvest index of 30.91% and rainfed conditions having a mean harvest index of 28.13%. Genotypes by overall performance Phule Anuradha, BJV 44, and M-35-1 tolerated water stress, by minimizing yield reduction by drought.

Keywords: Sorghum, drought, genotypes, rainfed, plant height, grain yield, semi-arid, regions, sorghum genotypes


How to Cite

Navyashree R, Mummigatti U V, Nethra P, Basavaraj B, & Hanamaratti N G. (2024). Effect of Drought Stress on Morpho Phenological and Yield Parameters in Sorghum Genotypes. Journal of Geography, Environment and Earth Science International, 28(6), 12–22. https://doi.org/10.9734/jgeesi/2024/v28i6775

Downloads

Download data is not yet available.

References

Yadav K, Verma A, Kumar MY, Choudhary M, Choudhary KM. Effect of fertilizer levels on fodder productivity and quality of multi-cut sorghum genotypes. International Journal of Bio-resource and Stress Management. 2019;2(8):119-123.

Thakur RP, Reddy BVS, Mathur K. Screening techniques for sorghum diseases. Crop Science. 2007;47:93-96.

Kumar MVN, Ramya V, Govindaraj M, Dandapani A, Maheshwaramma S, Ganapathy KN, Kavitha K, Goverdhan M, Jagadeeshwar R. India’s rainfed sorghum improvement: Three decades of genetic gain assessment for yield, grain quality, grain mold and shoot fly resistance. Frontiers in Plant Science. 2022;13:105-130.

Sanchez FJ, Manzanares M, De Andre´s EF, Tenorio JL, Ayerbe L. Residual transpiration rate, epicuticular wax load and leaf colour of pea plants in drought conditions, Influence on harvest index and canopy temperature. European Journal of Agronomy. 2011;15:57-70.

Khayatnezhad M, Gholamin R, Jamaatie-Somarin SH, Zabihi-Mahmoodabad R. Effects of PEG stress on corn cultivars (Zea mays L.) at germination stage. World Applied Science Journal. 2018;11(5):504-506.

Stikler FC, Pauli AW, Paul A. Leaf area determination in grain sorghum. Agronomy Journal. 1961;53:188-198.

Rao SS, Elangovan M, Umakanth AV, Seetharama N. Characterizing phenology of sorghum hybrids in relation to production management for high yields. Journal of Agricultural Science. 2007;2 (4):1-5.

Panse VG, Sukhatme PV. Statistical methods for agricultural workers. Indian Council of Agricultural Research Publications. 1967;381-389.

Ghosh SC, Akram S, Ahsan SM, Asif AA, Shahriyar S. Morpho-physiological and yield performance of grain sorghum genotypes. Asian Journal of Medical and Biological Research. 2015;1(2):271-284.

Osakabe Y, Osakabe K, Shinozaki K, Tran LSP. Response of plants to water stress. Frontiers of Plant Science. 2014;5(86):523-549.

Jabereldar AA, El Naim AM, Abdalla AA, Dagash YM. Effect of water stress on yield and water use efficiency of sorghum in semi-arid environment. International Journal of Agriculture and Forestry. 2017;7 (1):1-6.

Abderhim AJ, El Naim AM, Abdalla AA, Dagash YM. Effect of water stress on yield and water use efficiency of sorghum (Sorghum bicolor L. Moench) in semi-arid environment. International Journal of Agriculture and Forestry. 2017;7(1):1-6.

Indu M, Dikshit N, Dimple S, Singhal R, Ahmed S. Stover quality: New priority trait in fodder sorghum. Indian Farmer. 2021;8 (12):554-559.

Souza AP, Cocuron JC, Garcia AC, Alonso AP, Buckeridge MS. Changes in whole plant metabolism during grain flling stage in Sorghum bicolor L. Moench grown under elevated CO2 and drought. Plant Physiology. 2021;16(5):1755-1765.