Sugarcane Clones under Early Planting (January) suitable for Moisture Stress Conditions of Andhra Pradesh

Author: Mukunda Rao Ch, P.S. Rao, M. Charumathi, D. Adilakshmi, T. Chitkala Devi, M. Bharathalakshmi and P.V.K. Jagannadha Rao

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Abstract

Fifteen prerelease sugarcane clones were tested against sugarcane varieties 87A 298 and 83V 15 as checks for their suitability to early planted conditions (January planting) under moisture stress/drought at Regional Agricultural Research Station, Anakapalle during 2020-21, 2021-22 and 2022-23. Sugarcane clones tolerant to moisture stress is need of the hour as sugarcane yields are drastically reducing due to moisture stress/drought. Field experiments were conducted with stress and non-stress treatments for evaluation of sugarcane clones tolerance to soil moisture stress/drought. It is a great challenge to identify a drought tolerant sugarcane clone for adoption by the sugarcane farmers to reap higher tonnage of nearly 15-20 t/ha as an extra yield which is great boon to the sugarcane cultivators. Among fifteen prerelease sugarcane clones tested sugarcane clones 2015A 51 (96.06 t/ha), 2015A 233 (94.14 t/ha), 2015A 183 (89.12 t/ha) and 2015A 93 (84.09 t/ha) recorded higher cane yield over other clones tested. The standards 87A 298 and 83V 15 recorded a cane yield of 73.02 t/ha and 85.076 t/ha which are lower than the superior clones. These clones also recorded significantly low SLA which indicates more photosynthetic assimilates per unit area. SPAD/SCMR values at 120 DAP under stress conditions (Summer). These sugarcane clones also recorded significantly higher SPAD/SCMR values with standard 87A 298. The ancillary data denoting stress tolerance like sheath moisture per cent, root spread area, total bio mass production per stool under stress and physiological parameters like leaf proline content is also high in these sugarcane clones. Based on three years findings, sugarcane clones 2015A 51, 2015A 233, 2015A 183 and 2015A 93 were found to be suitable for drought/soil moisture stress condition of cane cultivation based on cane yield, ancillary data and physiological traits in relation to moisture stress tolerance. The drought tolerance efficiency per cent was high in 2015A 59 (92.08%) followed by 2015A 233 (89.33%) and 2015A 93 (87.98%) over other clones tested. The standards 87A 298 and 83V 15 recorded a drought tolerance efficiency per cent of 72.27and 67.52 respectively.

Keywords

Moisture stress, CSI, SPAD/SCMR, leaf proline, cane yield, Membrane injury index

Conclusion

Among 15 sugarcane clones studied in comparison with 87A 298 under early planted stress conditions, sugarcane clones 2015A 51, 2015A 233, 2015A 183, 2015A 93 are found suitable for cane cultivation under stress situations of limited irrigated conditions based on cane yield and quality parameters in relation to ancillary yield parameters and physiological stress tolerance traits.

References

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How to cite this article

Mukunda Rao Ch, P.S. Rao, M. Charumathi, D. Adilakshmi, T. Chitkala Devi, M. Bharathalakshmi and P.V.K. Jagannadha Rao (2023). Sugarcane Clones under Early Planting (January) suitable for Moisture Stress Conditions of Andhra Pradesh. Biological Forum – An International Journal, 15(9): 458-464.