AGR232: Chapter 9 Cocoa

Cocoa can be propagated using ___________.

• seed only

• seed and budding only

• seed, budding and grafting

• seed, budding, grafting and air layering

Which of the followings are the varieties of cocoa?

i. Criollo and forastero only

ii. Forastero and trinitario only

iii. Criollo, forastero and jorquetto

iv. Criollo, forastero and trinitario

• i only

• ii only

• iii only

• iv only

Which of the followings are true about seed propagation?

i. seeds are washed to remove dusts

ii. choose seeds that are swollen or non-uniform seed for sowing

iii. seeds are treated with Thiram solution for 1-5 min

iv. seeds are scattered between 2 dry gunny sacks

• i only

• ii only

• iii only

• iv only

In the conventional budding, the horizontal cut at the rootstock is made at _______ above the soil level

• 10 cm

• 15 cm

• 20 cm

• 25 cm

In the side graftage, the scion of cocoa has no leaves, contains 2-3 buds and the bottom part of scion is cut horizontally.

• True

• False

In the chip budding, the scion is chosen from flushing branches of cocoa.

• True

• False

In the cutting technique of cocoa, the bark at the bottom part of stem is removed to __________

• reduce translocation

• reduce transpiration

• encourage calluse formation

• keep the cuttings dry

In the marcotting of cocoa, the _____ is removed from branch and covered in sawdust and polythene sheet.

• bark

• wood

Which of the followings are FALSE about green budding of cocoa?

i. scion is chosen from shoot that recently mature but still green in colour

ii. cutting at rootstock is made at above cotyledon scar

iii. petiole below cotyledon is cut off after bud patch is wrapped

• i only

• ii only

• i and ii

• ii and iii

Which of the followings are TRUE about top grafting of cocoa?

i. use rootstock of 2 months old

ii. cleft site should be 20-30 cm from soil level

iii. cleft site should contain 3-4 leaves at the down parts of cleft site

iv. scion is cut horizontally at the bottom part

• i only

• i and ii

• ii and iii

• iii and iv