MCAER PG CET 2026 HORTICULTURE

 

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MCAER PG CET 2026

Subject: Horticulture (Advanced Concepts)

1. The 'Pink Flesh' of Guava is primarily due to the presence of:

A. Anthocyanin

B. Lycopene

C. Quercetin

D. Beta-carotene

Correct: B. Unlike many other fruits, the pink color in Guava (and Watermelon) is attributed to Lycopene.

2. [PYQ 2021] Which physiological disorder in Mango is associated with high temperature and 'Convective Heat' during fruit maturity?

A. Black Tip

B. Spongy Tissue

C. Soft Nose

D. Internal Necrosis

Correct: B. Spongy Tissue (especially in Alphonso) is caused by convective heat from the soil post-harvest or during ripening.

3. 'Gynomonoecious' sex form is most commonly utilized in the breeding of:

A. Watermelon

B. Muskmelon

C. Cucumber

D. Ridge Gourd

Correct: B. Muskmelon naturally exhibits an andromonoecious or gynomonoecious sex habit which is critical for hybrid seed production.

4. The specific training system in Grapevine, 'Telephone System', is a modification of:

A. Kniffin System

B. Bower System

C. Head System

D. Cordon System

Correct: A. The Telephone system is an overhead modification of the 4-cane Kniffin system to provide better light penetration.

5. [PYQ 2023] Which botanical variety of Oleracea is known as 'German Turnip'?

A. Brassica oleracea var. botrytis

B. Brassica oleracea var. gongylodes

C. Brassica oleracea var. italica

D. Brassica oleracea var. gemmifera

Correct: B. Knol-khol is botanically Brassica oleracea var. gongylodes and is colloquially called German Turnip.

6. The 'Double Sigmoid' growth curve is characteristic of which fruit crop?

A. Banana

B. Mango

C. Fig

D. Citrus

Correct: C. Fig, Grapes, and Stone fruits exhibit a double sigmoid curve, representing two distinct periods of rapid growth separated by a lag phase.

7. 'Vat-fuming' is a post-harvest treatment used in Grapes primarily to:

A. Increase TSS

B. Enhance color

C. Control Botrytis cinerea

D. Reduce acidity

Correct: C. Fuming with SO2 (Sulfur dioxide) is the standard practice to prevent grey mold (Botrytis) during storage.

8. Which flower is known as the 'Glory of the East'?

A. Rose

B. Chrysanthemum

C. Lotus

D. Orchid

Correct: B. Chrysanthemum is widely referred to as the Glory of the East or "Autumn Queen".

9. In Apple, 'Bitter Pit' is caused by the deficiency of:

A. Boron

B. Zinc

C. Calcium

D. Copper

Correct: C. Bitter pit is a physiological disorder linked to localized Calcium deficiency in the fruit tissue.

10. 'Clinch' is a physiological phenomenon associated with:

A. Pineapple flowering

B. Date palm pollination

C. Banana fruit curving

D. Coconut meat hardening

Correct: B. It is a specific term used during the pollination and fruit set phase in Date Palms.

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