Purpose <p>Climate change vulnerability, soil salinity, increasing CO<sub>2</sub> concentration and the risk of recurrent droughts to agricultural productivity requires alternative production systems such as soilless cultivation in arid to semi-arid zones to ensure sustainable production, thereby, ensuring food security for sprawling population. The present study aimed to investigate the performance of capsicum cultivars in different soilless cultivation systems.</p> Method <p>Ten capsicum cultivars were grown under three soilless growing systems (grow bag system, trough system and Dutch bucket system) laid out under a completely randomized design (CRD) in split plot arrangement with three replications.</p> Results <p>Results indicated that the biomass traits, gas exchange fluxes, mineral contents and yield related attributes were observed higher under trough cultivation system, whereas, biochemical and enzymatic antioxidant activities were superior under grow bag culture. In comparison to grow bag system, trough system exhibited higher RL (23.28%), photosynthetic rate (16.00%), stomatal conductance (8.91%), WUE (2.45%) and K contents (17.27%), resulting in higher yield (17.29%). The ascorbic acidcontent and antioxidant enzyme activities of peroxidase, catalase and superoxide dismutase increased by 6.17%, 12.14%, 17.39% and 13.36%, respectively, under grow bag system compared to the trough growing system. The cultivar Red Jet showed consistent and maximum performance in all cropping system.</p> Conclusion <p>The study suggests that Red Jet cultivar should be cultivated under trough soilless cultivation system for higher productivity in partially controlled greenhouse, as this approach represents a cost-effective strategy, resulting in higher benefit–cost ratio compared to other systems.</p>

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Comparative Analysis of Capsicum’s Growth, Leaf Nutrients, Fruit Antioxidants and Yield in Soilless Cultivation Systems under Partially Controlled Greenhouse

  • Ali Asad Bahar,
  • Hafiz Nazar Faried,
  • Sami Ullah,
  • Abid Hussain,
  • Zulqurnain Khan

摘要

Purpose

Climate change vulnerability, soil salinity, increasing CO2 concentration and the risk of recurrent droughts to agricultural productivity requires alternative production systems such as soilless cultivation in arid to semi-arid zones to ensure sustainable production, thereby, ensuring food security for sprawling population. The present study aimed to investigate the performance of capsicum cultivars in different soilless cultivation systems.

Method

Ten capsicum cultivars were grown under three soilless growing systems (grow bag system, trough system and Dutch bucket system) laid out under a completely randomized design (CRD) in split plot arrangement with three replications.

Results

Results indicated that the biomass traits, gas exchange fluxes, mineral contents and yield related attributes were observed higher under trough cultivation system, whereas, biochemical and enzymatic antioxidant activities were superior under grow bag culture. In comparison to grow bag system, trough system exhibited higher RL (23.28%), photosynthetic rate (16.00%), stomatal conductance (8.91%), WUE (2.45%) and K contents (17.27%), resulting in higher yield (17.29%). The ascorbic acidcontent and antioxidant enzyme activities of peroxidase, catalase and superoxide dismutase increased by 6.17%, 12.14%, 17.39% and 13.36%, respectively, under grow bag system compared to the trough growing system. The cultivar Red Jet showed consistent and maximum performance in all cropping system.

Conclusion

The study suggests that Red Jet cultivar should be cultivated under trough soilless cultivation system for higher productivity in partially controlled greenhouse, as this approach represents a cost-effective strategy, resulting in higher benefit–cost ratio compared to other systems.