2007
DOI: 10.1016/j.jplph.2006.12.004
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Abstract: Drought is a major environmental constraint affecting growth and production of coffee. The effects of water supply on growth, biomass allocation, water relations, and gas exchange in two coffee progenies representing drought-tolerant (Siriema) and drought-sensitive (Catucaí) genotypes were compared. They were grown in 12-L pots until 4-months old, when they were submitted to two watering treatments for 60 d: plants receiving either 100% transpired water (control plants) or a fraction (about 40%) of the amount … Show more

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Cited by 94 publications
(85 citation statements)
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References 23 publications
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“…Similarly, our results showed that P application had no effects on LMR, RMR and AGMR of dwarf bamboo under water-stressed treatment (Table 1). However, its RGR under water-stressed treatment was significantly affected by P application (Table 1), similar to the results reported by Dias et al (2007), which is mostly associated with physiological adjustments (i.e. P n , r ¼ 0.91, P < 0.001) rather than with morphological adjustments (i.e.…”
Section: Growth and Water Statussupporting
confidence: 88%
“…Similarly, our results showed that P application had no effects on LMR, RMR and AGMR of dwarf bamboo under water-stressed treatment (Table 1). However, its RGR under water-stressed treatment was significantly affected by P application (Table 1), similar to the results reported by Dias et al (2007), which is mostly associated with physiological adjustments (i.e. P n , r ¼ 0.91, P < 0.001) rather than with morphological adjustments (i.e.…”
Section: Growth and Water Statussupporting
confidence: 88%
“…The significant correlation between A and g s , as found for arabica coffee, but not for conilon, might be associated with the better coupling of g s with the atmospheric evaporative demand in the former. Sources: Meinzer et al (1990Meinzer et al ( , 1992, DaMatta et al (1997DaMatta et al ( , 2002DaMatta et al ( , 2003DaMatta et al ( , 2008, Carelli et al (1999), Silva et al (2004), Pinheiro et al (2004), Gómez et al (2005), Cai et al (2005Cai et al ( , 2007, Praxedes et al (2006), , Ronquim et al (2006), Dias et al (2007), Chaves et al (2008).…”
Section: Photosynthesis and Crop Yieldmentioning
confidence: 99%
“…When compared with other tree crops, cocoa is less efficient in the control of water loss [5] and does not tolerate periods of long water stress [6] while ability for osmotic adjustment during water stress varies in cocoa [7]. According to [8], ability to identify the genotypes that combine the traits for good growth and high yield with efficient WUE is an essential mechanism for breeding crops for drought-prone areas. Also, [9] positioned that traits which favour drought tolerance in plants include greater allocation of biomass to root than above ground parts, lower evaporative surface (leaf area) and thicker leaves.…”
Section: Introductionmentioning
confidence: 99%