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WSET Diploma D1 Questions With Correct Answers

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WSET Diploma D1 Questions With Correct Answers

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WSET Diploma D1 Questions With
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Correct Answers
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Most important N American grape species - CORRECT
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ANSWERS(S)✔✔Vitis labrusca, Vitis riparia, Vitis
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berlandieri and Vitis rupestris
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Four main sections of a grape vine - CORRECT
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ANSWERS(S)✔✔the main shoots, one-year-old wood,
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permanent wood and the roots
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What comprises the canopy of a vine? - CORRECT
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ANSWERS(S)✔✔The main shoots and all of their major
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structures - stem, buds, leaves, lateral shoots, tendrils and
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inflorescences/grape bunches
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What do the main shoots grow from, and when? -
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CORRECT ANSWERS(S)✔✔The main shoots on the vine
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grow in spring from buds retained from the previous year
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,Where are carbohydrates stored in a vine? - CORRECT
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ANSWERS(S)✔✔Stems, trunks, roots
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Define lignify - CORRECT ANSWERS(S)✔✔Green shoots
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become woody and rigid, they are then called canes
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Where do buds form? - CORRECT
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ANSWERS(S)✔✔between the leaf stalk (petiole) and the
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stem
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Define the two types of buds - CORRECT ANSWERS(S)✔✔-
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Compound buds (form in one growing season and break
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open the following growing season, producing main
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shoots; typically a primary, secondary, and maybe
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tertiary)
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- Prompt buds (form and break open same season, form
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lateral shoots)
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What is the main function of lateral shoots? When are
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they desirable/undesirable? - CORRECT ANSWERS(S)✔✔-
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to allow the plant to carry on growing if the tip of the
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main shoot has been damaged or eaten
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,- can provide an additional source of leaves for
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photosynthesis (useful if the laterals are near the ends of
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the main shoots)
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- Growth of laterals nearer the base of the main shoot can
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be undesirable as they impede air flow and can shade the
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fruit too much
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What is second crop? - CORRECT ANSWERS(S)✔✔Lateral
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shoots often produce inflorescences, which can be known
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as a 'second crop'
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What is green harvesting? - CORRECT
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ANSWERS(S)✔✔Removal of second crop during summer
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Define one-year-old wood - CORRECT ANSWERS(S)✔✔the
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main shoots from the last growing season that were kept
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at pruning, supports compound buds; cane or spur
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Define permanent wood - CORRECT// // // //




ANSWERS(S)✔✔woody parts of the vine that are older
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than one year, including the trunk
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, where are most roots found? - CORRECT
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ANSWERS(S)✔✔top 50cm of soil
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what distinguishes PN clone 115? - CORRECT
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ANSWERS(S)✔✔low Y, small grapes, good for high Q red
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wines
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what distinguishes PN clone 521? - CORRECT
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ANSWERS(S)✔✔high Y, bigger grapes, good for sparkling
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wine production
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When is leaf fall and dormancy? - CORRECT
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ANSWERS(S)✔✔Nov-March
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When is budburst? - CORRECT ANSWERS(S)✔✔March-
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April


When is shoot and leaf growth? - CORRECT
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ANSWERS(S)✔✔March-July
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