3.2.3. Water relations
Pre-dawn leaf water potential (Jw) declined significantly as
drought stress progressed irrespective of source, and recovered to
the level ofWWplants at the end of relief (Table 3, Table A-2 in the
online Appendix). Interestingly, Jp slightly increased (became less
negative) in all sources because of water stress. However, the
change inJwwas mainly driven by leaf turgor pressure (Jp), which
progressively declined as drought progressed irrespective of the
source (NIVDAT8 ¼ 53%; NIVDAT18 ¼ 67%) (data not shown).
RelativeWater Content (RWC,%)measured at the end of the stress
period was significantly affected by water regime and a significant
water source interaction was found (Table A-2). RWC was not
affected by water stress in plants from Brazil and Tanzania, whereas
WS plants from Suriname had significantly lower RWC when
compared with theirWWcounterparts (Table 3). At the end of relief,
RWC fully recovered in all sources.
3.2.3. Water relationsPre-dawn leaf water potential (Jw) declined significantly asdrought stress progressed irrespective of source, and recovered tothe level ofWWplants at the end of relief (Table 3, Table A-2 in theonline Appendix). Interestingly, Jp slightly increased (became lessnegative) in all sources because of water stress. However, thechange inJwwas mainly driven by leaf turgor pressure (Jp), whichprogressively declined as drought progressed irrespective of thesource (NIVDAT8 ¼ 53%; NIVDAT18 ¼ 67%) (data not shown).RelativeWater Content (RWC,%)measured at the end of the stressperiod was significantly affected by water regime and a significantwater source interaction was found (Table A-2). RWC was notaffected by water stress in plants from Brazil and Tanzania, whereasWS plants from Suriname had significantly lower RWC whencompared with theirWWcounterparts (Table 3). At the end of relief,RWC fully recovered in all sources.
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