Unit 3: Production Technology of Sub-Tropical and Minor Fruits - Practice Quiz

HRT208 — Production Technology Of Fruit And Plantation Crops 60 Questions
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1 Guava is especially valued as a rich source of which vitamin?

Guava Easy
A. Vitamin C
B. Vitamin A
C. Vitamin B12
D. Vitamin D

2 What is the botanical type of guava fruit?

Guava Easy
A. Nut
B. Pome
C. Berry
D. Drupe

3 Which vegetative method is commonly used to propagate guava?

Guava Easy
A. Seed sowing
B. Planting underground tubers after a long storage period
C. Air layering
D. Runner planting

4 Sapota is commonly known in India by which name?

Sapota Easy
A. Chikoo
B. Phalsa
C. Jamun
D. Aonla

5 Which commercial product is traditionally obtained from the latex of sapota?

Sapota Easy
A. Natural rubber processed from mature rubber-tree plantations
B. Copra
C. Cocoa
D. Chicle

6 Grape plants grow naturally as which type of plant?

Grape Easy
A. Underground herbs
B. Erect shrubs
C. Climbing vines
D. Dwarf palms

7 Which propagation method is commonly used for grape?

Grape Easy
A. Division of mature plants along with their complete root systems
B. Seed sowing
C. Hardwood cuttings
D. Crown planting

8 What are dried grapes commonly called?

Grape Easy
A. Raisins
B. Dates
C. Figs
D. Prunes

9 Which method is most commonly used for the vegetative propagation of litchi?

Litchi Easy
A. Runner planting
B. Direct sowing of freshly collected seeds in deep nursery beds
C. Tuber division
D. Air layering

10 What is the white, juicy, edible portion of litchi called?

Litchi Easy
A. Aril
B. Kernel
C. Seed coat
D. Endocarp

11 What type of fruit is pineapple botanically?

Pineapple Easy
A. Stone fruit
B. Dry fruit
C. Simple berry
D. Multiple fruit

12 Which planting material is commonly used for vegetative propagation of pineapple?

Pineapple Easy
A. True seeds
B. Large woody branches collected from mature trees
C. Suckers
D. Root cuttings

13 What is the botanical name for the fruit type of pomegranate?

Pomegranate Easy
A. Balausta
B. Hesperidium
C. Drupe
D. Pome

14 Which part of the pomegranate is mainly eaten?

Pomegranate Easy
A. Dried leaves
B. Hard rind
C. Woody stem
D. Juicy arils

15 Jackfruit is widely recognized as which of the following?

Jackfruit Easy
A. Largest tree-borne fruit
B. Largest underground fruit
C. A seedless fruit produced only under protected cultivation
D. Smallest berry fruit

16 Where are male and female flowers borne in jackfruit?

Jackfruit Easy
A. Only below ground
B. On the same tree
C. Only on nursery seedlings
D. On separate trees

17 Date palm is described as dioecious because it bears male and female flowers in which way?

Date Easy
A. Within the same flower
B. On the same branch
C. On separate plants
D. Only on plants grown from vegetative tissues under controlled conditions

18 Which planting material is traditionally used to propagate true-to-type date palms?

Date Easy
A. True seeds
B. Leaf cuttings
C. Flower clusters
D. Offshoots

19 Ber is well suited to cultivation in which type of climate?

Ber Easy
A. Cold alpine
B. Permanently waterlogged tropical areas with very high annual rainfall
C. Arid and semi-arid
D. Wet marshy

20 Which method is commonly used for the commercial propagation of improved ber varieties?

Ber Easy
A. Crown planting
B. Leaf cutting
C. T-budding
D. Runner planting

21 A guava grower wants to obtain a high-quality winter crop instead of a low-quality rainy-season crop. Which crop-regulation practice is most appropriate?

Guava Medium
A. Retain the February–March bloom and stop irrigation during fruit development
B. Suppress the June–July bloom and encourage flowering during February–March
C. Retain all seasonal blooms and increase nitrogen application throughout the year
D. Suppress the February–March bloom and resume irrigation before the June–July bloom

22 In a high-density guava orchard, trees develop excessive canopy crowding and fruiting shifts away from manageable shoots. Which intervention is most suitable?

Guava Medium
A. Prune regularly to stimulate productive current-season shoots
B. Avoid pruning to preserve all old fruit-bearing branches
C. Allow upright shoots to grow without height control
D. Remove only the roots near the irrigation channels

23 A nursery has vigorous guava seedling rootstocks and wants to multiply a superior cultivar while maintaining its genetic identity. Which method is most appropriate?

Guava Medium
A. Sowing seeds collected from the cultivar's largest fruits
B. Dividing the mature tree into rooted crown sections
C. Planting open-pollinated seedlings after visual selection
D. Patch budding the cultivar onto the seedling rootstocks

24 A nursery manager requires uniform, true-to-type sapota plants with a strong and compatible root system. Which propagation combination should be selected?

Sapota Medium
A. Rooting mature leaves directly in nursery beds
B. Budding the cultivar onto citrus rootstock
C. Sowing seeds from selected ripe sapota fruits
D. Grafting the cultivar onto khirni rootstock

25 A sapota fruit appears full-sized, but the grower is unsure whether it has reached harvest maturity. Which observation most reliably supports harvesting?

Sapota Medium
A. The fruit becomes very soft while still attached to the tree
B. The peel turns bright red and separates naturally from the pulp
C. The skin becomes dull brown and scratching reveals yellowish tissue
D. The skin remains green and scratching releases abundant white latex

26 A grape cultivar has poorly fruitful basal buds but highly fruitful buds farther along the cane. Which pruning strategy should be adopted?

Grape Medium
A. Remove all one-year-old canes from the vine
B. Retain longer canes with more buds during fruit pruning
C. Head back every shoot to the permanent cordon
D. Use short spurs containing only one or two basal buds

27 In a tropical grape-growing region following double pruning, what is the main purpose of foundation pruning and fruit pruning?

Grape Medium
A. Foundation pruning develops canes; fruit pruning induces the crop
B. Foundation pruning induces fruit; fruit pruning develops roots
C. Foundation pruning thins berries; fruit pruning controls weeds
D. Foundation pruning ripens fruit; fruit pruning renews rootstocks

28 A seedless grape vineyard produces compact clusters with small berries. Which growth-regulator program would best address both problems?

Grape Medium
A. Apply auxin only after the berries have fully ripened
B. Apply ethylene before bloom and cytokinin after harvest
C. Apply abscisic acid at bloom and again during pruning
D. Apply gibberellic acid around bloom and again after fruit set

29 A litchi orchard experiences severe fruit cracking after a dry period followed by heavy irrigation. Which management change is most appropriate?

Litchi Medium
A. Maintain uniform soil moisture through irrigation and mulching
B. Withhold water completely from flowering until harvest
C. Apply a heavy nitrogen dose immediately before ripening
D. Prune all fruiting terminals during early fruit development

30 A large block of one litchi cultivar flowers heavily but shows poor fruit set because insect activity and pollen transfer are limited. Which action is most suitable?

Litchi Medium
A. Exclude insects by netting the orchard during flowering
B. Introduce bee colonies and maintain compatible flowering cultivars
C. Remove all male-phase flowers from the orchard
D. Apply high nitrogen doses to suppress panicle development

31 A pineapple grower wants the earliest possible crop from vegetative planting material. If all materials are healthy and uniform, which should be preferred?

Pineapple Medium
A. Large suckers arising from the plant base
B. Crowns removed from harvested fruits
C. Seeds extracted from mature fruits
D. Slips developing below the fruit

32 A pineapple field has plants of adequate size but highly uneven natural flowering. Which treatment is commonly used to synchronize flowering?

Pineapple Medium
A. Spray abscisic acid to stop inflorescence emergence
B. Apply auxin paste to the harvested fruit crowns
C. Spray gibberellic acid to delay floral initiation
D. Apply an ethephon-based flower-induction treatment

33 In a pomegranate orchard where irrigation water is scarce during summer but monsoon rainfall is dependable, which flowering season is generally most practical to retain?

Pomegranate Medium
A. Mrig bahar during June–July
B. Hasta bahar during September–October
C. Ambe bahar during January–February
D. An unrestricted crop in every flowering season

34 Pomegranate fruits in an orchard crack frequently near maturity after alternating dry and wet soil conditions. Which practice would most directly reduce the disorder?

Pomegranate Medium
A. Remove leaves around every fruit to increase sun exposure
B. Increase nitrogen applications during the final ripening stage
C. Use regular irrigation and mulch to stabilize soil moisture
D. Withhold irrigation until visible wilting occurs each time

35 A grower wants to establish a jackfruit orchard using a superior tree known for regular bearing and high-quality bulbs. Why is grafting preferable to seed propagation?

Jackfruit Medium
A. It preserves cultivar traits and usually shortens the juvenile period
B. It eliminates the need for a compatible root system
C. It guarantees seedless fruits under all growing conditions
D. It produces greater genetic variation and delays first bearing

36 Which group of field observations best indicates that a jackfruit has reached harvest maturity?

Jackfruit Medium
A. Sharp spines, metallic sound, and absence of any aroma
B. Split rind, fermented odor, and complete pulp softening
C. Bright green rind, soft stalk, and rapid latex flow
D. Flattened spines, dull hollow sound, and characteristic aroma

37 A date palm plantation has many healthy female palms but low fruit set because only a few male palms are present. Which practice would most effectively improve fruit set?

Date Medium
A. Remove female inflorescences to stimulate a second flowering cycle
B. Apply nitrogen fertilizer directly to unopened female spathes
C. Place collected male flower strands within receptive female inflorescences
D. Prune all leaves surrounding the female inflorescences before opening

38 A grower needs new date palms that are guaranteed to be female and identical to a high-yielding cultivar. Which planting material is most suitable?

Date Medium
A. Healthy offshoots produced by selected female palms
B. Seedlings raised from fruits of selected female palms
C. Seedlings obtained after mixing pollen from several males
D. Root pieces collected from mature male palms

39 An unpruned ber orchard develops long, crowded branches and produces fewer marketable fruits. Why would annual pruning improve production?

Ber Medium
A. Ber forms flower buds exclusively on underground suckers
B. Ber fruits only on permanent trunks older than ten years
C. Ber flowers and fruits mainly on current-season shoots
D. Ber requires complete leaf removal throughout fruit growth

40 A nursery wants to propagate a selected ber cultivar using hardy local seedlings as rootstocks. Which technique is most appropriate under active sap flow?

Ber Medium
A. Divide the trunk into sections and plant them horizontally
B. Sow seeds from the cultivar directly in the orchard
C. Root detached mature leaves in a mist chamber
D. T-bud the selected cultivar onto the seedling rootstocks

41 A mature guava orchard has abundant old framework branches but few flowers. Leaf analysis shows adequate nutrients, and there is no major pest incidence. Which canopy intervention most directly addresses the crop's bearing habit?

Guava Hard
A. Head back selected shoots to stimulate new fruitful laterals
B. Retain all old wood and remove only root suckers
C. Thin only the flowers present on scaffold branches
D. Girdle the main trunk before floral differentiation

42 A north Indian guava grower wants to minimize the low-quality rainy-season harvest and concentrate production in winter through bahar regulation. Which strategy is most appropriate?

Guava Hard
A. Suppress the spring crop by moisture stress, then resume irrigation near the monsoon
B. Suppress monsoon flowering, then restore irrigation only in late winter
C. Irrigate heavily through summer, then impose stress during the monsoon
D. Maintain continuous irrigation and thin fruits immediately before harvest

43 A sapota nursery requires uniform, true-to-type plants suitable for relatively dry soils. Which propagation combination is agronomically most appropriate?

Sapota Hard
A. Air layering of juvenile shoots on sapota seedlings
B. Hardwood cuttings rooted directly without a rootstock
C. Seed propagation followed by selection after orchard establishment
D. Softwood grafting of selected scions on khirni seedlings

44 Sapota fruits of marketable size still release abundant milky latex when scratched and have green tissue beneath the peel. What is the best harvest decision?

Sapota Hard
A. Harvest immediately because sapota must ripen only after detachment
B. Harvest immediately because fruit size alone indicates full maturity
C. Apply ethephon on the tree and harvest after twenty-four hours
D. Delay harvest because the fruits are still physiologically immature

45 A grape cultivar produces fruitful buds mainly at nodes 6–10, while its basal buds are consistently sterile. Which pruning system best preserves its yield potential?

Grape Hard
A. Renewal pruning that removes every one-year-old cane
B. Cane pruning that retains sufficient distal fruitful buds
C. Spur pruning that retains only one or two basal buds
D. Pollarding that retains only permanent scaffold branches

46 In a tropical grape production system using double pruning, which sequence correctly distinguishes foundation pruning from fruit pruning?

Grape Hard
A. Foundation pruning renews vegetative shoots; later fruit pruning retains buds according to fertility
B. Foundation pruning retains fruiting canes; later fruit pruning removes all one-year wood
C. Foundation pruning removes rootstocks; later fruit pruning renews permanent cordons
D. Foundation pruning is done at bloom; later fruit pruning is done after berry softening

47 A seedless grape vineyard needs looser clusters before fruit set and larger berries after fruit set. Which gibberellic acid strategy best matches these objectives?

Grape Hard
A. Use equal doses during dormancy and immediately after pruning
B. Use a high dose after veraison and a thinning treatment at harvest
C. Use a low dose before bloom and a sizing treatment after fruit set
D. Use a sizing dose before bloom and discontinue treatment after set

48 A litchi orchard experiences severe fruit cracking following irrigation after a prolonged dry period. Which integrated response most directly addresses the underlying disorder?

Litchi Hard
A. Remove developing panicles and irrigate heavily only at full colour
B. Impose stronger preharvest stress and apply excess nitrogen near maturity
C. Withhold all irrigation after fruit set and increase potassium chloride
D. Maintain uniform soil moisture, mulch the basin, and correct boron deficiency

49 A breeder identifies an elite adult litchi tree and wants orchard plants that retain its fruit traits while avoiding a long juvenile phase. Which method is most suitable?

Litchi Hard
A. Sow open-pollinated seeds and select vigorous seedlings at planting
B. Culture seeds after drying them to a low moisture content
C. Air layer mature shoots and detach them after adequate rooting
D. Root dormant hardwood cuttings without leaves or mist

50 A uniform block of adequately mature pineapple plants remains vegetative, threatening synchronized harvesting. Which treatment is most appropriate for inducing uniform flowering?

Pineapple Hard
A. Apply an ethylene-releasing treatment such as ethephon to the plant whorl
B. Spray auxin on immature crowns to suppress apical dominance
C. Apply cytokinin to harvested slips to initiate inflorescences
D. Apply gibberellic acid to the roots to promote floral initiation

51 Equal-sized pineapple suckers, slips, and crowns are planted under identical conditions. What is the generally expected order from earliest to latest first harvest?

Pineapple Hard
A. Crowns, suckers, slips
B. Slips, suckers, crowns
C. Slips, crowns, suckers
D. Suckers, slips, crowns

52 A pomegranate tree flowers profusely, but most flowers are bell-shaped, short-styled, and shed without setting fruit. Which interpretation is most accurate?

Pomegranate Hard
A. The crop has an excessive proportion of long-styled female flowers
B. The flowers are cleistogamous and cannot receive external pollen
C. The crop has an excessive proportion of functionally male flowers
D. The flowers are hermaphroditic but lack viable ovules after fertilization

53 Pomegranate fruits crack near maturity after alternating drought and heavy irrigation, but no infectious lesions are visible. Which management change is most appropriate?

Pomegranate Hard
A. Stabilize soil moisture and ensure adequate boron and calcium nutrition
B. Withhold irrigation permanently once the fruits begin rapid enlargement
C. Increase irrigation fluctuations and apply additional ammoniacal nitrogen
D. Apply a contact fungicide and remove all flowers from the next flush

54 A pomegranate orchard develops oily, water-soaked spots on leaves and fruits; the fruit lesions later enlarge and crack. Which diagnosis best fits this symptom complex?

Pomegranate Hard
A. Bacterial blight caused by Xanthomonas
B. Anthracnose caused by Colletotrichum
C. Wilt caused by a soilborne disease complex
D. Cercospora leaf spot caused by Cercospora

55 A jackfruit tree produces many male spikes on slender peripheral branches but few female inflorescences. Where should management preserve bearing sites most carefully?

Jackfruit Hard
A. On thin shoots inside the current flush
B. On the youngest terminal extension shoots
C. On the trunk and older primary branches
D. On root suckers below the graft union

56 A nursery must rapidly multiply a superior jackfruit genotype, but stored rootstock seeds show sharply declining germination. Which protocol is most suitable?

Jackfruit Hard
A. Dry seeds thoroughly and use the resulting seedlings as scions
B. Root mature hardwood scions directly under dry field conditions
C. Store seeds for a year and propagate the cultivar by seed
D. Sow fresh seeds immediately and softwood-graft the selected scion

57 A date plantation is designed with 320 productive female palms. If the operational standard permits no more than 40 female palms per male pollinizer, what is the minimum number of male palms required?

Date Hard
A. 8 male palms
B. 10 male palms
C. 6 male palms
D. 12 male palms

58 A dry-date cultivar is intended for long storage and must be harvested at the fully ripened stage with the lowest moisture content. Which developmental stage is appropriate?

Date Hard
A. Khalal stage
B. Tamr stage
C. Rutab stage
D. Kimri stage

59 An unpruned ber orchard develops dense old wood and progressively fewer fruits despite adequate irrigation and nutrition. Which intervention best exploits the crop's bearing habit?

Ber Hard
A. Prune annually to stimulate vigorous current-season fruiting shoots
B. Girdle scaffold branches because fruits form on two-year-old wood
C. Retain all shoots because fruits form only on permanent spurs
D. Remove only current-season shoots after they begin flowering

60 A single-cultivar ber block flowers heavily and has abundant bee activity, yet controlled self-pollination shows poor pollen-tube growth and negligible fruit set. What is the most effective corrective action?

Ber Hard
A. Apply additional nitrogen to overcome pollen incompatibility
B. Introduce compatible pollinizer cultivars with overlapping bloom
C. Remove all pollinating insects during peak flowering
D. Convert the orchard to a single clone by top-working