Assessment of Drought Stress of Two Genotypes of Sorghum (Sorghun bicolor L.) Using Physiological Parameters

Snehal A. Tambe

Department of Agricultural Botany, K.K. Wagh College of Agri-Business Management, Nashik, India.

Jondhale, A. S *

Department of Botany, M.J.M Arts, Commerce and Science College, Karanjali, Tal-Peth, District Nashik, Maharashtra, India.

B. D. Wagh

Department of Botany, SMBT Arts, Commerce and Science College, Sangamner, Ahmednagar, India.

*Author to whom correspondence should be addressed.


Abstract

The present experiment conducted in the period of rabi season at Sorghum Improvement Project, M.P.K.V., Rahuri, Maharashtra during the period of 2016 to 2017. During investigation to observed the physiological parameters under non stress and moisture stress condition with cross two genotypes SPV 1830 x IS 6427. In this study of mean performance of the basic generation P1, P2, F1, F2, B1 and B2 of the cross SPV 1830 x IS 6427 was observed various physiological parameters viz. photosynthetic rate, rate of transpiration, stomatal conductance, relative leaf water content, SPAD reading, total chlorophyll content and chlorophyll stability index. The present results to observed the B2 and F1 generation recorded significantly highest photosynthesis rate (25.98 and 22.47 µ mole CO2 m-2s-1) under non stress and moisture stress condition, respectively. The parent B1 recorded highest transpiration rate (3.27 and 1.92 mmole H2O m-2s-1) under non stress and moisture stress condition, respectively. The F1 and B1 generation recorded significantly the highest mean for stomatal conductance (0.24 and 0.18 mole m-2 s-1) under non stress condition and moisture stress condition, respectively. The B1 generation recorded the highest total chlorophyll content (3.30 and 2.08 %) under non stress and moisture stress condition, respectively. The present experimental study to observe physiological parameters of sorghum cross two genotype (SPV 1830 x IS 6427)   directly affected in growth and grain yield under non-stress and moisture stress condition. Therefore, present study to find out the drought stress effects on sorghum through the physiological parameters.

Keywords: Non-stress, moisture stress, sorghum, physiological parameters


How to Cite

Tambe, Snehal A., Jondhale, A. S, and B. D. Wagh. 2024. “Assessment of Drought Stress of Two Genotypes of Sorghum (Sorghun Bicolor L.) Using Physiological Parameters”. International Journal of Plant & Soil Science 36 (8):336-43. https://doi.org/10.9734/ijpss/2024/v36i84862.