Effects of restricted watering and CO<inf>2</inf> enrichment in the morphology and performance after transplanting of nursery-grown Pinus nigra seedlings

Carme Biel, Robert Savé, Abdessamad Habrouk, Josep Maria Espelta, Javier Retana

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

Extensive areas occupied by Pinus nigra forests in Spain have burned in recent years. Recovery of these forests depends upon reforestation. In this study, we analyze the combined effects of different treatments of water restriction and air enrichment with CO2 in the nursery as a means to increase hardening and vigor of P. nigra seedlings of various ages (recently germinated, 1- and 2-year-old) and their post-transplant performance in a burned area. In all cases, 2-year-old seedlings showed the highest specific leaf weight and low cuticular transpiration rates. CO2 enrichment increased total biomass, leaf biomass and leaf area of seedlings while water restriction decreased leaf area, leaf biomass, and stem biomass, without any significant interaction between both experimental factors. Younger (recently germinated and 1-year-old) seedlings showed a larger relative response to the experimental factors than 2-year-old seedlings. After transplanting, the previous CO2 and water treatments did not affect seedling survival, but 2-year-old seedlings showed the lowest mortality rates.
Original languageEnglish
Pages (from-to)535-540
JournalHortScience
Volume39
Issue number3
Publication statusPublished - 1 Jun 2004

Keywords

  • Hardening
  • Nursery practices
  • Pinus nigra
  • Reforestation
  • Seedling

Fingerprint

Dive into the research topics of 'Effects of restricted watering and CO<inf>2</inf> enrichment in the morphology and performance after transplanting of nursery-grown Pinus nigra seedlings'. Together they form a unique fingerprint.

Cite this