Orchard productivity
Crop yields and tree growth. Two harvests
were conducted each year (130 and 137 d after full bloom in 2002, and 124 and 127 d after full bloom in 2003). Harvest analyses
were conducted on the first harvest in 2002
and on the second harvest in 2003 based on the optimal maturity for ‘Gala’ apples in each season (Plotto et al., 1995). Calculations of
yield, yield efficiency, crop load (number of
fruit per tree), average fruit weight, and amount of unmarketable fruit were calculated at each harvest by counting and weighing all of the fruit from each of the 12 sample trees per plot and are reported as the cumulative value of the two harvests in each year. Tree growth was assessed by calculating the trunk cross- sectional area (TCSA) from measurements of trunk circumference, assuming a circular geometry, at 20 cm above the graft union of the rootstock. Return bloom was calculated
by foral intensity (ratio of total flower buds
to total flower + vegetative buds) on three
branches of each sample tree.
Orchard productivityCrop yields and tree growth. Two harvests were conducted each year (130 and 137 d after full bloom in 2002, and 124 and 127 d after full bloom in 2003). Harvest analyses were conducted on the first harvest in 2002 and on the second harvest in 2003 based on the optimal maturity for ‘Gala’ apples in each season (Plotto et al., 1995). Calculations of yield, yield efficiency, crop load (number of fruit per tree), average fruit weight, and amount of unmarketable fruit were calculated at each harvest by counting and weighing all of the fruit from each of the 12 sample trees per plot and are reported as the cumulative value of the two harvests in each year. Tree growth was assessed by calculating the trunk cross- sectional area (TCSA) from measurements of trunk circumference, assuming a circular geometry, at 20 cm above the graft union of the rootstock. Return bloom was calculated by foral intensity (ratio of total flower buds to total flower + vegetative buds) on three branches of each sample tree.
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