Horticulture MCQ Question and Answer | Agriculture MCQ Question

Fenugreek is diploid with chromosome number 2n = 16.
Fenugreek (Trigonella foenum-graecum L.), an annual legume crop grown mainly for seed at present, has the potential to be a high-quality forage crop in western Canada.
A cytological survey of germplasm stored at the USDA germplasm center demonstrated a somatic karyotype with a chromosome number of 2n = 16.

In budding and grafting the union between stock and scion take place through Cambium.
In this method, the meristematic tissue of both stock and scion are joined together which is capable of cell division. This tissue is called cambium.
In grafting union between stock and scion produces an undifferentiated mass of cells called callus. A callus is more or less corky secondary tissue developed lay woody plants over a wound. A callus is derived from the cambium.

Amaranth species that is called Badi Chauli is Tricolor.
Amaranthus tricolor, known as edible amaranth, is a species of flowering plant in the genus Amaranthus, part of the family Amaranthaceae.
The leaves and stems may be eaten as a salad vegetable. It is an annual flowering plant with deep purple flowers. It can grow to 2 - 3 feet tall.

International Crop Research Institute for Semi-Arid Tropics (ICRISAT) is located in Hyderabad, India.
The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) is a non-profit, non-political organization that performs agricultural research for development in Asia and sub-Saharan Africa with a wide array of partners across the globe.
The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) is based in Hyderabad, India. Its research is centered on sorghum, pearl millet, pigeon pea, desi and Kabuli chickpea and groundnut.

Tomato is the day-neutral crop among the given options.
Day-neutral are those that develop and mature regardless of the relative length of alternating exposures to light and dark periods.
Tomato is a day-neutral plant. Some other examples of day-neutral plants are cucumber, cotton, dandelion, sunflower and some varieties of peas.

Citrus species, resistant to canker is Citrus aurantifolia.
Citrus canker is a bacterial disease that causes lesions on the leaves, stems, and fruit of plants including citrus and other plants in the citrus family. While not harmful to humans, the disease affects the health of infected citrus trees and the marketability of infected fruit.
The Key lime or acid lime (C. aurantifolia) is a citrus hybrid (C. hystrix × C. medica) native to tropical Southeast Asia. It has a spherical fruit, 25 - 50 mm (1 - 2 in) in diameter. It is widely used because of its antibacterial, anticancer, antidiabetic, antifungal, anti-hypertensive, anti-inflammation, anti-lipidemia and antioxidant properties.

If the immature potato tubers are harvested, the outer tissues are rapidly loosened. This disorder of potatoes is termed Feathering.
Potato skin that becomes scuffed or starts rubbing off is known as skinning or feathering. This happens when unripe potatoes are handled roughly and cause the skinned area to become dark if exposed to wind, sun or dry air.

Radish is the root crop that is the most useful for intercrop and companion planting.
Intercropping is the practice of growing two or more crops in proximity. The most common goal of intercropping is to produce a greater yield on a given piece of land by making use of resources that would otherwise not be utilized by a single crop.
Companion planting is where two or more species are sown together to harvest the grain of a single species.
Radish as companion plants include lettuces, tomatoes, carrots, onions, peppers, peas, cucumbers and spinach as well as herbs like dill, mint and oregano. The radishes will mature before most other crops and help break up the soil as they grow.

Application of 1500 - 2000 PPM GA₃ at 2 and 4 true leaf stage in cucumber promotes the induction of male flower.
Foliar application of GA₃ was found significantly superior over control in terms of different growth, flowering and fruiting behaviours of cucumber.
Induction of male flowers in gynoecious cucumber cultivars was assessed by single and combinatorial spraying of AgNO₃ (3 mM), GA₃ (1.5 mM) and CoCl₂ (3 mM) after the first true leaf emergence.

The crop showing the greatest inbreeding depression is Onion.
Inbreeding depression is the reduced survival and fertility of offspring of related individuals.
They reproduce either by the self-pollination or cross-pollination process. This phenomenon is observed in several other plant species that are further grouped based on the following four categories.