Horticulture MCQ Question and Answer | Agriculture MCQ Question

Rajasthan is the state among the following given options that has the maximum coefficient of variation in rainfall.
The coefficient of variation in rainfall is highest in Jaisalmer (217.14%) and Bikaner (148.68%) whereas the lowest variability was observed in the Jhunjhunu district (81.05%).
The values of the coefficient of variation show the change from the mean values of rainfall. The actual rainfall in some places deviates from 20 - 50 percent.

A variety of Damask rose released by NBRI is Noor Jahan. This variety is developed by crossing Rosa with Damascena. It is a hybrid rose derived from Rosa Gallica and Rosa Moschata.
The French Crusader Robert de Brie, who took part in the Siege of Damascus in 1148 during the second crusade, is sometimes credited for bringing the Damask rose from Syria to Europe. The name of the rose refers to the city of Damascus in Syria, known for its steel (Damask steel), fabrics (Damask) and roses.

Truck gardening is the intensive method of vegetable cultivation. It involves the cultivation of a variety of vegetables on a relatively small piece of land and is often practiced for commercial purposes. Truck gardens are typically located close to urban areas to ensure the supply of fresh vegetables to local markets. This method allows for the efficient and intensive cultivation of vegetables to meet the demands of local consumers. It's an important aspect of horticulture, especially in providing fresh produce to urban populations.

The other options are:
Option A: Market gardening is another term for the same concept as truck gardening, involving intensive vegetable cultivation for local markets. Option C: Kitchen gardening is a smaller-scale cultivation method in which individuals or families grow vegetables for personal consumption near their homes. Option D: Floating gardening refers to a method of growing crops on water bodies, often used in regions with abundant water resources.

So, the correct answer is Option B: Truck gardening, which specifically relates to intensive vegetable cultivation for commercial purposes.

Spongy tissue is a serious problem of the Mango cultivar Alphonso.
Spongy tissue is a physiological ripening disorder in 'Alphonso's mango.
The spongy tissue develops as yellowish white corky patches with or without air pockets in the breakdown tissues.
It is caused by the shift of the seed to germination mode inside the fruit where it absorbs nutrients from the surrounding fleshy part of the fruit, making it appear white and spongy.

The Scientist, Albert Howard has been called the Father of Organic Farming.
The concepts of organic agriculture were developed in the early 1900s by Sir Albert Howard, F. H. King, Rudolf Steiner and others who believed that the use of animal manure cover crops, crop rotation and biologically based pest controls resulted in a better farming system.
Howard, having worked in India as an agricultural researcher, gained much inspiration from the traditional and sustainable farming practices he encountered there and advocated for their adoption.

The flower colour in Kochia is Indistinguishable.
Kochia is the scorpion grass, an ornamental plant also grown as a forage crop. When it grows, it is lush green in colour but turns red as it matures.
The flowers of Kochia lack petals and have 5 winged sepals that are green in colour. The seeds when mature, are rough, flat, triangular and grayish-black.

Hydroponics is a type of horticulture and a subset of hydroculture that involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents.
William Frederick Gericke, a physiologist at the University of California at Berkeley, is regarded as the father of Hydroponics.
The first crop raised in Hydroponics is Tomato grown by William Gericke in 1937. He grew tomato vines about 7.6 metres high in his backyard in a mineral nutrient solution.

M3 is the monoecious line used for the development of muskmelon F1 hybrid-Pusa Rasraj. A monoecious line M-3 developed at IARI and crossed with Durgapura Madhu gave rise to the F1 hybrid, Pusa Rasraj.
As a result of the development of a true breeding line, the muskmelon hybrid Pusa Rasraj was developed.
These homozygous gynoecious lines are maintained by using GA3, 1500 ppm or silver nitrate 200 - 300 ppm or sodium thiosulphate 400 ppm to induce staminate flowers at two and four true leaf stages.

Largest Annona fruit is borne by Annona muricata.
The Annona fruit belongs to Annonaceae, a family of flowering plants consisting of trees, shrubs, or rarely lianas commonly known as the custard apple family or soursop family.
A. muricata, also known as soursop, Graviola and guanabana, is an evergreen plant that is mostly distributed in tropical and subtropical regions of the world. The fruits of A. muricata are extensively used to prepare syrups, candies, beverages, ice creams and shakes.

The precursor of ethylene synthesis in higher plants is Methionine.
Ethylene is a plant hormone and is produced from essentially all parts of higher plants, including leaves, stems, roots, flowers, fruits, tubers and seeds.
Plants synthesize ethylene using a two-step biochemical pathway starting from S-adenosyl-L-methionine (SAM). SAM is converted to 1-aminocyclopropane-1-carboxylic acid (ACC) by the enzyme ACC synthase (ACS). ACC is then converted to ethylene by the enzyme ACC oxidase (ACO). Thus Methionine can be called a precursor of this process.