As for stomatal conductance, we found that it also showed a trend of first increasing and then decreasing, while only difference with the photosynthetic rate was that RR treatment was higher than the control group during core-hardening periods , and was lower during other two stages (Fig. 3 D–F).
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Effects of root restriction on phytohormone levels in different growth stages and grapevine organs.
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Figure 1 F well reported that there existed extremely significant differences in TSS between RR treatment and control group in DAF 57, 67, 77, 87, 90, 100, 110 stages.
Meanwhile, titratable acid (TA) content, as an indicator of fruit taste, contrary to TSS, showed a decreasing trend with fruit ripening.