Horticulture MCQ Question and Answer | Agriculture MCQ Question

Cucurbitacin is the glucoside that helps prevent spoilage of cooked vegetables of bitter gourd.
It is a class of biochemical compounds that some plants notably members of the pumpkin and gourd family, Cucurbitaceae produce and which function as a defense against herbivores. Cucurbitacins impart a bitter taste in plant foods such as cucumber, zucchini, melon and pumpkin.
Cucurbitacins have potent biological activities depending on the target cells such as cytotoxic, anti-tumor properties, hepatoprotective, anti-inflammation, antimicrobial, anthelmintic, cardiovascular and anti-diabetic effects.

Self blanched variety of cauliflower is Pusa Deepali.
The Self Blanching cauliflower is known for its bright white curds with a delicious flavor! The Self Blanching cauliflower has self-wrapping leaves that help protect the white curds from the sun, thus the name Self Blanching Cauliflower.
Pusa deepali is the variety of cauliflower developed at IARI, New Delhi. Recommended for Northern India, particularly Delhi and Punjab. It is an early maturing variety, curd compact, self-blanching, white, medium-sized, and almost free from riceyness, curds ready for harvest in late October. The average yield is 12 t/ha.

The most important disease of bananas in India is bunchy top.
The banana bunchy top is a viral disease caused by a single-stranded DNA virus called the banana bunchy top virus (BBTV). It was first identified in Fiji in 1879. The disease is transmitted from plant to plant in tropical regions of the world by aphids.
Banana bunchy top disease affects the banana fruit and foliage and is caused by a single-strand DNA virus, the banana bunchy top virus. BBTV can infect species of the family Musaceae, which includes bananas, plantains, abaca and more.

Central Institute of Post-harvest Engineering Technology (CIPHET) is located in Ludhiana.
Central Institute of Post-Harvest Engineering and Technology (CIPHET) is an institute to take up the Lead in Research in the area of post-harvest engineering and technology suitable for agricultural production and agro-industries.
CIPHET is equipped with all types of post-harvest machines that can encourage mechanization and are agro and user-friendly equipment. It also offers training to students pursuing a Bachelor of Technology (Agricultural Engineering).

"Thermoperiodicity" refers to the response of the plant to high day temperature and low temperature rather than a constant temperature. It is commonly observed in tomatoes.
It is also called thermal periodicity, the growth or flowering responses of plants to alternation of warm and cool periods. Daily temperature fluctuations produce dramatic effects on the growth or flowering of most plants.
This phenomenon has been applied to the production of tomatoes. Most flowers are produced when tomatoes are grown at 26.7°C during the day and 17.2° - 20°C at night. Thermoperiodic effects are distinct from photoperiodic effects.

Date palm is dioecious, not monoecious. This is not correctly matched. In Date palms, the male and female flowers develop on separate individuals.
Papaya is polygamous, with three primary sex types: female, male and bisexual. There are some cases where plants produce more than one kind of flower at the same time.
Walnut trees are monoecious, meaning a single tree contains both male (catkin) and female (pistillate) flowers, allowing the trees to self-pollinate.
Pistachio nut Plants are dioecious, with separate male and female trees. The flowers are apetalous and unisexual and borne in panicles.

The air in Controlled atmosphere storage is maintained such that it has Low O2, High CO2.
A controlled atmosphere is an agricultural storage method in which the concentrations of oxygen, carbon dioxide and nitrogen, as well as the temperature and humidity of a storage room, are regulated. Both dry commodities and fresh fruit and vegetables can be stored in controlled atmospheres.

The export variety of mango is Alphanso.
The Alphonso mango is a named mango cultivar that originated in India. The variety is named after Afonso de Albuquerque, a Portuguese nobleman who was the Viceroy of Portuguese India from 1509 to 1515.
The Alphonso is a seasonal fruit, available mid-April through the end of June. The fruits generally weigh between 150 and 300 grams and have a rich, creamy, tender texture and delicate, non-fibrous, juicy pulp.
The Alphonso is prized in domestic and international markets for its taste, fragrance and vibrant colour.
It is exported to various countries, including Japan, Korea and Europe.

The red colour of light favors stems elongation which unfavorably resembles etiolated plants.
Etiolation is a process in flowering plants grown in the partial or complete absence of light. Lack of sufficient light retards chlorophyll formation and promotes slender growth with long internodes, thus leading to pale green leaves, spindly growth, and premature drop of leaves and flowers.
This process is regulated by the exposure of various photoreceptor pigments to light. Phytochrome A and phytochrome B both respond to an increasing proportion of red light to far-red light which occurs when the shoot comes out into the open.