|
In order to understand the effect of calcium application on
shoot, berrygrowth and nutrient content in Honey Red grapevines
(Vitis vinefera L.×Vitislabrusca L.), five levels of dolomite
of 0,40,80,120,160 and 200kg CaO/0.1hawere treated in the
vineyard before bud forcing. For the first harvest period,the
average length of shoot appeared 104∼128 cm, and the shoots
node weidthwas 9.2∼9.8 mm, in the harvest stage, it was shown
that there was notsignificant difference among treatments. For
the second harvest, the time ofshoot stop to growth was 10 days
earlier than that of the first harvest, theshoots growth also
had not any difference among treatments.Leaf area,leafweight and
leaf chlorophyll content were decreased when the calcium
application was increased. The growth of fruit was shown in
double sigmoid curve. The fresh weightand size of berry was more
bigger associated with the lower firmness whencalcium did not
applied, while total soluble solid, acidity and water contentof
berry appeared more higher fllowed high levels of calcium
application. The calcium and magnisium content of shoot,
leaf and berry had not anysignificant difference in treatments.
When calcium application was increased,the calcium and potassium
content of shoot , leaf and berry was increased,alile the
magnisium content in the same part was decresed.
|