Horticulture MCQ Question and Answer | Agriculture MCQ Question

The attack of pea stem fly is maximum in January.
Pea Stem Fly (Ophiomyai phaseoli) is a major pest of a pea. The maggots bore inside the stem leading to wilting of the plants.
The damage is more severe on seedlings than on grown-up plants. The adult flies are metallic black. They are active in summer and mate 2 - 6 days after emergence.
Incubation, larval and pupal periods last for 2 - 4, 9 - 12 and 18 - 19 days respectively, during November - December thus, causing maximum damage in January as they are adults by that time.
The average longevity of males is 11 days; however, females can live up to 22 days.

The leading Indian State in the Floriculture trade in Karnataka.
Fresh and Dried cut flowers dominate floriculture exports from India. Among states, in terms of production, Karnataka stands first with a total of 253.24 thousand tonnes.
In terms of area, Kerala is the leader in floriculture with about 53.26 thousand hectares under floriculture cultivation.

25% of Nitrogen is present in CAN.
CAN is a solid nitrate-based fertilizer, usually applied on acidic soils. It is obtained by the combination of Ammonium Nitrate solution with a source of calcium (limestone). CAN has a 25 to 28% Nitrogen content.
CAN is a nitrogen fertilizer that contains equal parts of fast-acting nitrate-nitrogen and longer-lasting ammonium-nitrogen. This ensures a more continuous nitrogen supply to the crop and thus better efficiency of use and also makes it suitable for unseasonal application during summer or winter.

The area of the kitchen garden sufficient for a family of 4 is 200 m².
The traditional kitchen garden is a space separate from the rest of the residential garden the ornamental plants and lawn areas. It is used for growing edible plants and often some medicinal plants.
The size of a kitchen garden depends upon the availability of land and the number of persons for whom vegetables are to be provided.
With succession cropping and intercropping, five cents of land would be adequate to supply vegetables for an average family of four to five persons.

The inflorescence of bananas is Spadix.
It is also known as “banana blossom”, “banana flower” or “banana heart”, is a dark purple-red heart-shaped structure or flower bud that is located at the end of the stalk or peduncle. The spadix is a floral spike with a fleshy or succulent axis usually enclosed in a spathe.
The banana plant is monoecious, it contains both female and male flowers inside the heart-shaped blossom.

World Trade Organization (WTO) is an intergovernmental organization that regulates international trade, was officially commenced on 1^st January 1995 under the Marrakesh Agreement.
The World Trade Organization (WTO) is an intergovernmental organization that regulates and facilitates international trade. Governments use the organization to establish, revise and enforce the rules that govern international trade.
It officially commenced operations on 1^st January 1995, under the 1994 Marrakesh Agreement, thus replacing the General Agreement on Tariffs and Trade (GATT) that had been established in 1948.

The ideal stage for harvesting carnations is the Paint brush stage.
Standard carnations should be harvested when the outer petal unfolds nearly perpendicular to the stem. Spray types are harvested when two flowers are open and the bud shows colour, Semi-open stage is Ideal for short-distance marketing.
Harvesting can be delayed by covering the buds with bud nets. When the buds start showing colour, bud nets can be put covering the entire flower bud, this also enhances the bud size besides regulating the flower development.

Tomato is a warm season crop.
The best fruit colour and quality are obtained at a temperature range of 21 - 24°C. Temperatures above 32°C adversely affect the fruit set and development. The plants cannot withstand frost and high humidity.
It requires low to medium rainfall. Bright sunshine at the time of fruit set helps to develop dark red coloured fruits. Temperature below 10°C adversely affects plant tissues thereby slowing down physiological activities.

A triple sigmoid growth curve is seen in Kiwi.
The growth curve has three phases of growth:
(i) Lag Phase- This is the initial phase of growth where the rate of growth is very slow.
(ii) Log or Exponential Phase- The rate of growth rapidly increases during this phase.
(iii) Stationary Phase- The rate of growth starts decreasing and finally stops.

Indian Institute of Horticulture was established in Bengaluru in 1968.
The Indian Institute of Horticultural Research (IIHR) is an autonomous organization acting as a nodal agency for basic, strategic, anticipatory and applied research on various aspects of horticulture such as fruits, vegetables, ornamental, medicinal and aromatic plants and mushrooms in India.
The institute has its headquarters in Bengaluru, Karnataka, India, and is a subsidiary of the Indian Council of Agricultural Research (ICAR), New Delhi, under the Ministry of Agriculture, India.