4451. The influence of light on flowering in plant is____________________?
comments icon0

A. Photosynthesis

B. Phototropism

C. Photolysis

D. Photoperiodism
4452. Lenticular transpiration generally occurs in____________________?
comments icon0

A. Vegetables

B. Woody plants

C. Cercal crops

D. Flower

4453. Fruits are an excellent source of_____________________?
comments icon0

A. Minerals

B. Vitamins

C. Carbohydrates

D. All the above
4454. The cooling methods for fresh produce is dependent on___________________?
comments icon0

A. Post harvest life of the produce

B. All the above

C. Physiology of the produce

D. Temperature of produce at harvest

4455. Reduction in climatic temperature causes reduction in fruit parameters such as__________________?
comments icon0

A. Change in texture

B. All the above

C. Respiration

D. Loss of vitamin C

4456. The storage life of fresh apples at -1 to -4c is______________________?
comments icon0

A. 20-25 weeks

B. 4-10 weeks

C. 10-20 weeks

D. 8-30 weeks
4457. The toxic substance CN glycocides is found in____________________?
comments icon0

A. Brinjal

B. Yam

C. Cucurbits

D. Cassava
4458. Among the root crops, the application of potassic fertilizers is essential in____________?
comments icon0
A. Carrot

B. Turnip

C. Radish

D. All of the above

4459. Mango stock for grafting is raised from ____________________ ?
comments icon0

A. All the above

B. Stones

C. Cutting

D. Budding

4460. Transfer of pollen grains to the stigma of the flowers of another plant is known as _______________________?
comments icon0
A. Allogamy

B. Cleistogamy

C. Autogamy

D. Polygamy

4461. Suri is the variety of__________ ?
comments icon0

A. Cherry

B. Non of the above

C. Olive

D. Mango

4462. Carbohydrates are separated by___________________?
comments icon0

A. Infra-red spectrophotometer

B. Paper chromatography

C. Gas liquid chromatography

D. Flame photometry

4463. which one of the following is climacteric fruit_____________________?
comments icon0
A. Banana

B. Pineapple

C. Grape

D. Lemon

4464. Anti-oxidants is used to prevent food from___________________?
comments icon0

A. non of these

B. Over npening

C. Juice flow

D. Discoloration

4465. The science of rearing honey bee for honey is known as__________________?
comments icon0

A. Honey culture

B. Sericulture

C. Apiculture

D. Silvi culture

4466. Tomato is a _________________________?
comments icon0

A. Long day plant

B. None of the above

C. Day-neutral plant

D. Short day plant

4467. Production of silk is termed as ____________________?
comments icon0

A. silvi culture

B. sericulture

C. Apiculture

D. None of the above

4468. A paranchy matous outer growth in the minor wall of the ovary to which the ovules are attached is called ___________________?
comments icon0

A. Ovule

B. Cambium

C. Ovary

D. Placenta
4469. The pigment present in tomato is___________________?
comments icon0

A. B-carotene

B. Xanthophyll

C. Chlorophyll

D. Lycopene
4470. The fruit whose pericarp does not split open at maturity are called___________________?
comments icon0

A. Dehiscent fruit

B. None of the above

C. Sehizo fruit

D. Indehiscent fruit
4471. When seed leaves the fruit or flower is called__________?
comments icon0

A. Dormancy

B. None of these

C. Quiescent.

D. Dissemination
4472. which one of the following fruit is perishable________________________?
comments icon0

A. Mango

B. Grapes

C. Banana

D. Cherry

4473. R1 to R6 genes against late blight of potato was reported by_____________________________?
comments icon0
A. Biffen (1905)

B. Flor (1956)

C. Painter (1951)

D. Van der plank (1963)

4474. The activity of enzymes in fruits usually decline at temperature___________________?
comments icon0

A. Above 10C

B. Above 30C

C. Above 20C

D. None of the above

4475. Lemon plant is commercially propagated by____________________?
comments icon0

A. Layering

B. Budding

C. Grafting

D. seed
4476. Plant parts useful for extraction of opium from papaver saminiferaim are__________________?
comments icon0

A. Ripened fruit

B. Unripe fruit

C. Young seedings

D. Old leaves

4477. Ripening fruits soften due to___________________?
comments icon0

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

4478. The chromoplast develops mainly from__________________?
comments icon0

A. Leucoplast

B. Amyloplast

C. Phagoplast

D. Chloroplast
4479. Fruits ripen better at a relative humidity of at least________________________?
comments icon0

A. 70%

B. 80%

C. 90%

D. 85%

4480. The message of jasmine is_______________?
comments icon0
A. Peace

B. Love

C. Friendship

D. All the above

4481. ____________ 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:
comments icon0

A. Littering

B. Cutting

C. Layering

D. Pruning
4482. A plant hormone which promote cell division known as_____________________?
comments icon0

A. IAA

B. Cytokinins

C. Gibberellins

D. Auxins

4483. What are the products of fermentation of grapes by yeast________________?
comments icon0
A. CO & alcohol

B. ATP & Ethanol

C. All the above

D. ATP & CO2

4484. Roma is variety of ___________________?
comments icon0

A. Guar

B. Raddish

C. Tomato

D. Onion

4485. Low temperature in climacteric fruits causes delay in________________________?
comments icon0

A. Harvesting

B. None of the above

C. Conversion of sugar to starch

D. Ripening
4486. Which of the following is good source of vitamin A__________________?
comments icon0

A. Gram

B. Banana

C. Wheat

D. Mango
4487. Eating quality of the fruits is determined by_____________________?
comments icon0

A. Texture

B. Physiological age

C. All the above

D. Flavor

4488. Citrus canker is a disease caused by ___________________?
comments icon0

A. Virus

B. Bacteria

C. Nematode

D. Fungi

4489. Disease incidences in plants is favored by___________________?
comments icon0
A. All the above

B. Cloudy weather

C. High humidity

D. Low temperature

4490. Degradation of green colour of fruits is due to___________________?
comments icon0

A. Oxidative system

B. All the above

C. Chloroplry lases

D. pH changes

4491. Edible part of apple is __________________ ?
comments icon0

A. Seed

B. Epicarp

C. fleshy aril

D. fleshy thalamus

4492. When a single bud is used as scion and inserted into root stock is called ____________________ ?
comments icon0

A. Shield budding

B. Stocking

C. All the above

D. Budding
4493. The dormancy of bulbs, roots and tubers can be prolonged by_____________________?
comments icon0

A. Low temperature

B. All the above

C. Appropriate storage conditions

D. Medium temperature

4494. which is multipurpose tree___________________?
comments icon0

A. Pine

B. Kikar

C. Mango

D. Cedar

4495. Cabbage, cauliflower, broccoli, knol-knol are_____________________?
comments icon0
A. Cole crop

B. Solanaceous vegetables

C. Floral vegetable

D. Leafy vegetables

4496. The nutrient stimulating vegetative growth is_____________________?
comments icon0

A. Phosphorus

B. Zinc

C. Nitrogen

D. Potassium

4497. The protein content of fresh fruit is about___________________?
comments icon0
A. 1%

B. 3%

C. 2%

D. 4%

4498. In plants the food is stored in the form of ____________________?
comments icon0

A. Glycogen

B. Cellulose

C. Strach

D. Fat

4499. Which one of the following____________________?
comments icon0

A. Army worms

B. Weevils

C. Cut worm

D. Aphids

4500. Potato when fried, excessive browning develops due to _______________________?
comments icon0

A. Reaction between amino acid and sugar

B. All the above

C. None of the above

D. Caramelization