CHLOROPHYLL SHOWING TRANSPIRATION AND PHENOLOGICAL STAGES OF DEVELOPMENT OF DIFFERENT TYPES OF JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.) AND CONDITIONS IN KHOREZM REGION

Matnazarova Zilola Maksudbek qizi

Authors

Matnazarova Zilola Maksudbek qizi Aspirant of Urgench State University

Keywords:

Jerusalem artichoke, phenological stages, transpiration, SPAD, drought tolerance, tubers.

Abstract

This study was conducted in Khorezm region during 2024–2025 to investigate the changes in transpiration (Tr) and chlorophyll content (SPAD) of Jerusalem artichoke varieties Faiz-baraka and Mo‘jiza across phenological stages. Results showed that the Mo‘jiza variety maintained relatively stable transpiration under high temperature and low moisture conditions while sustaining photosynthetic activity. Tubers played a significant role as internal water reserves under stress conditions. Appropriate irrigation management and variety selection according to phenological stages can enhance yield. The findings provide a scientific basis for evaluating drought tolerance and practical recommendations for Jerusalem artichoke cultivation in hot and dry climates.

References

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