Question86:-The potential limitation to intensive agroforestry in the humid tropics is
A:-PAR availability
B:-Moisture availability
C:-Heavy nutrient demand
D:-Crop density
Correct Answer:- Option-A
Question87:-Luecaena psyllid is
A:-Hoplocerambyx spinicornis
B:-Eligma narcissus
C:-Hyblaea peura
D:-Hipsipyla robusta
Correct Answer:- Option-D
Question88:- is a tree species extensively used for border planting in the coastal tracts of central Kerala.
A:-Ailanthus triphysa
B:-Vatica chinensis
C:-Thespesia populnea
D:-Casuarina equisetifolia
Correct Answer:- Option-B
Question89:-Pink disease in Eucalyptus is caused by
A:-Corticium salmonicolor
B:-Rhizopogon nigrescens
C:-Rhizotonia solani
D:-Phytophthora palmivora
Correct Answer:- Option-A
Question90:-Primary classification of silvicultural system is based on
A:-Mode of regeneration
B:-Pattern of felling
C:-Locality factors
D:-Species composition
Correct Answer:- Option-A
Question91:-Sal borer is
A:-Hoplocerambyx spinicornis
B:-Eligma narcissus
C:-Hyblaea peura
D:-Hipsipyla robusta
Correct Answer:- Option-A
Question92:-The number of 25-cm (quadratic mean diameter at breast height) trees per hectare in a stand is
A:-Importance value index
B:-Reineke's stand density index
C:-Crown competition factor
D:-Wilson's percent of height
Correct Answer:- Option-B

Question93:-The forgone value of the next best alternative that is not chosen or the true sacrifice incurred by the choice of a
given action

A:-Real rate of interest
B:-Opportunity cost
C:-Shadow price
D:-Net present value
Correct Answer:- Option-B
Question94:-Standard basal media formulations commonly used in Plant Tissue Culture
A:-Murashige and Skoog
-Mannitol salt agar
C:-Potato dextrose agar
D:-Agarose gel media
Correct Answer:- Option-A
Question95:-Species highly suitable for afforestation in laterite soil is
A:-Acacia auriculiformis
-Tamarix articulata
C:-Acacia nilotica