horticulture Mcqs
251. Which of the following not iodine rich vegetable crops?
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A. Okra

B. French bean & capsicum

C. Brinjal

D. both B & C
252. Papaya fruit is___________________?
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A. Pepo type

B. All the above

C. Berry type

D. Pome type
253. The fruit tree which are naturally cross pollinated are ___________________ ?
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A. Datepalm and papaya

B. Apple and grape

C. Chiku and banana

D. Mango and lemon

254. Acidlime is commercially propagated by________?
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A. Cutting

B. Seed

C. Grafting

D. All of the above

255. In plants when glucose is more than its requirement the surplus is converted into____________________?
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A. Sucrose

B. None of the above

C. Glycogen

D. Starch
256. Banana is a rich source of__________________?
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A. Proteins

B. Carbohydrates

C. Lipids

D. Vitamins

257. Crysanthemum is propagated by___________?
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A. corms

B. None

C. Suckers

D. corals

258. A Stalk connecting an ovule or a seed with the placenta (the ovary)?
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A. Funiculus

B. Raphe

C. Aril

D. Hilum

259. Proteins fails to work______________________?
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A. With basic pH

B. With out acidic pH

C. With acidic pH

D. With out basic pH

260. Which one of the following instrument is used for measuring fruit flesh finess__________________?
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A. Magners- Taylor pressure tester

B. Penetometer

C. Effegi instrument

D. All the above
261. Absence Of Chlorophyll is known as _______?
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A. None of these

B. Acrodsome

C. Albinism

D. Agoun

262. The main function of auxin is_____________________?
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A. Cell differentiation

B. Cell production

C. Cell elongation

D. Cell division

263. Which one of the following disease is caused due to lack of fiber in diets_________________?
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A. All the above

B. Hernia

C. Diabetes

D. Appendicitis

264. Variation in the performance of the same mango variety in the same orchard may be due to the variation in the root stock raised from seeds which may be due to_______________?
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A. Variable root stock size

B. All the above

C. Mono-embryonic

D. Polyembroyonic
265. Collar rot in chilies is caused by ___________________?
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A. Phytophatara cupsa

B. Phytopatinara infeston

C. Phytophuthora spesies

D. Rhizocotina solani

266. What is topping _________________?
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A. none of the above

B. Removal of leaves

C. Removal of branches

D. Removal of roots

267. Out door production of vegetables, out of their normal season is known as______________________?
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A. vegetable improvement

B. vegetable forcing

C. Out season production

D. None of the above

268. The average temperature for maximum plant growth is _________________?
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A. 28-30C

B. 25-30C

C. 20-30C

D. 25-35C

269. Commercial grape cultivation is called__________________?
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A. Cirticulture

B. Olericulture

C. Viticulture

D. Sericulture

270. The influence of light on flowering in plant is____________________?
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A. Photosynthesis

B. Phototropism

C. Photolysis

D. Photoperiodism
271. Lenticular transpiration generally occurs in____________________?
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A. Vegetables

B. Woody plants

C. Cercal crops

D. Flower

272. Fruits are an excellent source of_____________________?
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A. Minerals

B. Vitamins

C. Carbohydrates

D. All the above
273. The cooling methods for fresh produce is dependent on___________________?
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A. Post harvest life of the produce

B. All the above

C. Physiology of the produce

D. Temperature of produce at harvest

274. Reduction in climatic temperature causes reduction in fruit parameters such as__________________?
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A. Change in texture

B. All the above

C. Respiration

D. Loss of vitamin C

275. The storage life of fresh apples at -1 to -4c is______________________?
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A. 20-25 weeks

B. 4-10 weeks

C. 10-20 weeks

D. 8-30 weeks
276. The toxic substance CN glycocides is found in____________________?
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A. Brinjal

B. Yam

C. Cucurbits

D. Cassava
277. Among the root crops, the application of potassic fertilizers is essential in____________?
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A. Carrot

B. Turnip

C. Radish

D. All of the above

278. Mango stock for grafting is raised from ____________________ ?
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A. All the above

B. Stones

C. Cutting

D. Budding

279. Transfer of pollen grains to the stigma of the flowers of another plant is known as _______________________?
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A. Allogamy

B. Cleistogamy

C. Autogamy

D. Polygamy

280. Suri is the variety of__________ ?
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A. Cherry

B. Non of the above

C. Olive

D. Mango

281. Carbohydrates are separated by___________________?
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A. Infra-red spectrophotometer

B. Paper chromatography

C. Gas liquid chromatography

D. Flame photometry

282. which one of the following is climacteric fruit_____________________?
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A. Banana

B. Pineapple

C. Grape

D. Lemon

283. Anti-oxidants is used to prevent food from___________________?
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A. non of these

B. Over npening

C. Juice flow

D. Discoloration

284. The science of rearing honey bee for honey is known as__________________?
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A. Honey culture

B. Sericulture

C. Apiculture

D. Silvi culture

285. Tomato is a _________________________?
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A. Long day plant

B. None of the above

C. Day-neutral plant

D. Short day plant

286. Production of silk is termed as ____________________?
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A. silvi culture

B. sericulture

C. Apiculture

D. None of the above

287. A paranchy matous outer growth in the minor wall of the ovary to which the ovules are attached is called ___________________?
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A. Ovule

B. Cambium

C. Ovary

D. Placenta
288. The pigment present in tomato is___________________?
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A. B-carotene

B. Xanthophyll

C. Chlorophyll

D. Lycopene
289. The fruit whose pericarp does not split open at maturity are called___________________?
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A. Dehiscent fruit

B. None of the above

C. Sehizo fruit

D. Indehiscent fruit
290. When seed leaves the fruit or flower is called__________?
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A. Dormancy

B. None of these

C. Quiescent.

D. Dissemination
291. which one of the following fruit is perishable________________________?
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A. Mango

B. Grapes

C. Banana

D. Cherry

292. R1 to R6 genes against late blight of potato was reported by_____________________________?
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A. Biffen (1905)

B. Flor (1956)

C. Painter (1951)

D. Van der plank (1963)

293. The activity of enzymes in fruits usually decline at temperature___________________?
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A. Above 10C

B. Above 30C

C. Above 20C

D. None of the above

294. Lemon plant is commercially propagated by____________________?
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A. Layering

B. Budding

C. Grafting

D. seed
295. Plant parts useful for extraction of opium from papaver saminiferaim are__________________?
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A. Ripened fruit

B. Unripe fruit

C. Young seedings

D. Old leaves

296. Ripening fruits soften due to___________________?
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A. Incorporation of pectate in middle lamella

B. Soubulization of pectate of middle lamelle

C. Jelly formation at acidic pH

D. Conversion of starch in sugar

297. The chromoplast develops mainly from__________________?
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A. Leucoplast

B. Amyloplast

C. Phagoplast

D. Chloroplast
298. Fruits ripen better at a relative humidity of at least________________________?
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A. 70%

B. 80%

C. 90%

D. 85%

299. The message of jasmine is_______________?
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A. Peace

B. Love

C. Friendship

D. All the above

300. ____________ may be defined as the art and science of cutting away of portion of plant to improve its shape, to influence its growth, flowering and fruitfulness and to improve the quality of the product:
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A. Littering

B. Cutting

C. Layering

D. Pruning