Life cycle of vine

Question 1

When does budburst occur?

Answer 1

North- March to April
South Sept to Oct

Question 1

What is budburst?

Answer 1

Buds swell, burst, grow into new shoots
When daily temps exceed 10c

Question 2

When does early shoot growth take place?

Answer 2

North March-May
South Sept-Nov

Question 3

What is early shoot growth?

Answer 3

Shoots grow rapidly until vine flowers
Initially from vine carbohydrate reserves, as leaves mature they support the growth through photosynthesis

Question 4

When does flowering and fruit set take place?

Answer 4

North May-June
South Nov-Dec

Question 5

What is coulure?

Answer 5

When more flowers than normal fail to fertilize

Question 6

When does fruit set occur?

Answer 6

When a flower starts to develop into a grape

Question 7

What is millerandage?

Answer 7

When grapes form without seeds and remain small

Question 8

When does veraison and berry ripening take place?

Answer 8

North July-Sept
South Jan-March

Question 9

What does veraison signal?

Answer 9

-The point when the grapes begin to ripen
-Skins change color

Question 10

What happens between veraison and harvest?

Answer 10

-Grapes swell and fill with water
-Sugar levels rise, acid drops
-Color and flavor compounds accumulate, tannins develop

Question 11

What is green harvesting?

Answer 11

Removal of a proportion of grape bunches