DROUGHT STRESS IMPACT ON SUGAR YIELD RELATED TO PHYSIO-BIOCHEMICAL TRAITS OF SUGARCANE (SACCHARUM SPP)

Document Type : Original Article

Authors

1 Agricultural Botany Department, Faculty of Agriculture Saba- Basha, Alexandria University, Alexandria, Egypt

2 Department of Breeding and Genetic Department, Sugar Crops Institute, Agricultural Research Center, Giza, Egypt

3 Department of Nucleic Acids Research, Genetic Engineering and Biotechnology Research Institute (GEBRI), City for Scientific Research, Borg El-Arab, Alexandria, Egypt

Abstract

Sugarcane is one of the most important commercial crops in Egypt which has a long-life cycle and a high-water requirement in general. Sugarcane production and growth are negatively impacted by water constraint, especially during the key water requirement period. This study compared nine sugarcane genotypes to the commercial genotype GT.54-9 (Saccharum spp.) in terms of cane yield, sugar yield, and juice quality related to physio-biochemical attributes including chlorophyll (Chl) Soil Plant Analysis Development (SPAD index), Relative Water Content (RWC), and proline content as a biochemical constituent. Under three levels of drought stress (87.5, 75, and 62.5% of reference crop evapotranspiration (ET0). In the severe water scarcity situations (62.5% of ET0). The results showed that the most promising genotypes (G.2004-27 and G.99-103) had good values for the investigated parameters. The work adds to our knowledge of genotype-screening for drought resistance as an effective technique for choosing materials for advanced breeding programs, especially in controlled drought environments. More genomic and molecular research is required to comprehend the precise processes behind sugarcane drought resilience.
 

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Egyptian Journal of Desert Research
Volume 73, Issue 2
December 2023
Pages 443-467

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History

  • Receive Date: 27 September 2023
  • Revise Date: 18 October 2023
  • Accept Date: 25 October 2023

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