MCQ தேர்வு

Q1
Which propagation structure is characteristic of strawberry and is extensively used for vegetative multiplication?
Q2
Which hormone is most directly associated with the induction of parthenocarpic fruit development in several horticultural crops?
Q3
Which crop is classified botanically as a berry in terms of its fruit type?
Q4
Which photoperiodic response is characteristic of many long-day onion cultivars used for bulb formation?
Q5
Which physiological process is primarily responsible for the development of climacteric fruit ripening?
Q6
In citrus, nucellar embryony is horticulturally important because it produces seedlings that are generally:
Q7
Chilling injury is most likely to occur when a chilling-sensitive horticultural commodity is:
Q8
Which plant growth retardant is commonly used to reduce excessive vegetative growth and improve compactness in certain ornamental and fruit crops?
Q9
The small structures commonly called seeds on the external surface of strawberry are botanically:
Q10
Which factor is most critical for successful graft union formation?
Q11
In tomato, blossom-end rot is primarily associated with inadequate movement of which nutrient to developing fruit tissue?
Q12
Which postharvest disorder results from excessive removal of water from harvested horticultural produce?
Q13
The phenomenon in which a fruit tree produces excessive vegetative growth at the expense of flowering is most directly promoted by excessive application of:
Q14
In cabbage, failure of head formation under prolonged high temperature is primarily related to:
Q15
In citrus, deficiency of which nutrient is most characteristically associated with mottling of young leaves and dieback of twigs?
Q16
Which citrus rootstock characteristic is most desirable for resistance to tristeza-related problems?
Q17
Which pre-cooling method is particularly effective for leafy vegetables because it rapidly removes field heat through direct contact with cold water?
Q18
In banana, the characteristic symptom of Panama disease is primarily associated with blockage of the vascular system by which pathogen?
Q19
Which nursery practice involves transferring young seedlings from a crowded seedbed to wider spacing?
Q20
Which structure in strawberry is botanically an aggregate accessory fruit?
Q21
In onion, which environmental condition generally promotes premature bolting?
Q22
The edible portion of pineapple is mainly formed by the fusion of:
Q23
Which irrigation practice is most effective in reducing blossom-end rot in tomato under protected cultivation?
Q24
Which statement best explains why grafting is valuable in commercial horticulture?
Q25
Which horticultural practice is most effective for maintaining uniform fruit size in a heavily fruiting tree?
Q26
Which physiological disorder in potato is commonly associated with exposure of tubers to light?
Q27
Which growth regulator is widely used to break dormancy in potato seed tubers under certain storage and planting conditions?
Q28
Which propagation method is most commonly used for commercial production of seedless grape plants?
Q29
Which grafting method involves joining the scion and rootstock while both remain attached to their respective root systems until union occurs?
Q30
Removal of unwanted flower buds or side buds to improve the size and quality of selected flowers is known as:
Q31
Which training system is particularly suitable for high-density apple orchards because it produces a narrow fruiting wall and improves light interception?
Q32
Which technique is most appropriate for maintaining genetic uniformity in a commercial clonal horticultural crop?
Q33
In budding, the propagating material inserted into the rootstock consists primarily of:
Q34
In ornamental plants, removal of the terminal growing point to encourage lateral branching is known as:
Q35
Which of the following is a non-climacteric fruit?
Q36
Which plant hormone generally promotes stem elongation and can overcome genetic dwarfing in some plants?
Q37
Which storage condition generally extends the postharvest life of most temperate horticultural fruits by slowing respiration and metabolic activity?
Q38
Which horticultural crop is particularly known for developing curd instead of a conventional leafy head?
Q39
In grape, which pruning system is generally associated with varieties that bear fruitful buds primarily on the basal nodes?
Q40
Which compound is commonly used to induce fruit thinning in apple by reducing fruit set when applied at the appropriate developmental stage?
Q41
Which pruning operation is specifically intended to remove dead, diseased and weak branches?
Q42
In an orchard, excessive shading within the canopy most directly reduces fruit quality because it limits:
Q43
Which management strategy best integrates canopy architecture, light interception, crop load and tree vigor in modern fruit production?
Q44
Which rootstock characteristic is most desirable for inducing drought tolerance in a grafted fruit crop?
Q45
In mango, which physiological disorder is most closely associated with the formation of a compact mass of short shoots with greatly shortened internodes?
Q46
The principal toxic glycoalkaloids associated with green potato tubers are:
Q47
Which vegetable is botanically a modified stem rather than a root?
Q48
Which phenomenon explains why removal of the shoot apex can stimulate lateral bud growth?
Q49
Which combination best represents the major objectives of high-density fruit planting?
Q50
Which method of vegetative propagation involves bending a branch to the ground, partially covering it with soil while retaining its connection to the parent plant?
Q51
Which factor generally determines the critical photoperiod of a photoperiod-sensitive horticultural plant?
Q52
In cauliflower, exposure to excessively low temperatures at a sensitive stage can lead to:
Q53
In protected cultivation, the primary purpose of hardening nursery seedlings before transplanting is to:
Q54
Which vegetable crop is especially sensitive to transplanting shock because of poor tolerance to root disturbance?
Q55
Controlled atmosphere storage primarily modifies which combination of gases around stored horticultural produce?
Q56
Which physiological condition is most likely to cause fruit cracking in tomato?
Q57
Which physiological disorder of mango is characterized by internal breakdown of pulp accompanied by a gelatinous consistency without necessarily showing external symptoms?