Morpho-Physiological evaluation of production potential of sugarcane (Saccharaum Sp. Hybrids) varieties under different irrigation regimes Shelke M. A1, Damse D. N.2,*, Bhor T. J3, Ghodke S. K4 1Central Sugarcane Research Station, Padegaon-415 521, Tal-Phaltan- Dist- Satara, Mahatma Phule Krishi Vidyapeeth, MS, India 2Agriculture Botany, Central Sugarcane Research Station, Padegaon-415 521, Tal- Phaltan- Dist- Satara, Mahatma Phule Krishi Vidyapeeth, MS, India 3Agriculture Botany, Agriculture Research Station, Vadgaon Maval-412 106, Tal-Maval, Dist- Pune, Mahatma Phule Krishi Vidyapeeth, MS, India *Corresponding Author: dipakdamse4346@gmail.com
Online Published on 12 September, 2023. Abstract Sugarcane as a C4 crop, requires high levels of water and fertilizers to produce high biomass. However, water scarcity is a significant issue in peninsular India, and it may worsen due to expected climate changes. Because sugarcane is glycophytic, drought stress can hinder sugar production by influencing the growth rate, yield and juice quality of the cane. Moisture stress is multi-dimensional stress which can affect various physiological and biochemical processes in plants. This study aims to assess the productivity potential of sugarcane varieties Co 86032, CoM 0265 and MS 10001 grown throughout tropical India under various irrigation levels to optimize water usage. The study revealed that higher yields were associated with normal (100% ETc) water regimes for important morphological and physiological characters, including cane height, cane girth, number of milliable canes, chlorophyll content, and yield. Conversely, the minimum values were observed at 50% ETc water regimes. MS10001 and CoM 0265 demonstrated maximum water use efficiency at 75% ETc. The early variety, MS 10001, outperformed other varieties for major yield contributing characters at 25% reduced water levels under drip irrigation, including CCS yield, average cane weight, cane girth, sucrose %, CCS %, and purity %. Overall, MS 10001 has the potential to produce optimum yield levels at 25% reduced water without affecting physiological attributes, followed by the genotype CoM 0265. Top Keywords Sugarcane variety, MS 10001, CoM 0265, Irrigation regimes, Morpho-Physiological evaluation. Top |