Water stress effect on final development of mandarin �??Fortune�?? fruit
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Abstract
a period of suppression of irrigation during 51 days in phase II
of fruit growth until reaching a stem water potential(?Stem) at
midday of- 2,5 MPa. During the period of water stress
assessments were performed leaf water potential (?leaf) and
stem (?stem), the latter were used to calculate the water stress
integral (?Int). At 50 days of irrigation restarting, were evaluated
different indicators of leaf growth (fresh weight, leaf area,
specific leaf area) and the relative chlorophyll content. At
harvest were evaluated in 60 fruits per treatment, fresh mass,
the equatorial diameter and crust thickness, the thickness and
index area of cross-section of the fruit. The results showed
that (?stem) was much more sensitive to the decrease of soil
water that (?leaf) and in terms of the variables in leaves growth
and fruits, we found that the severe water stress effect in both
organs applied during 51 days in phase II of fruit growth no
limited their growth, and the ending development.
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