Horticulture MCQ Question and Answer | Agriculture MCQ Question

Pithiness-resistant turnip variety is Pusa Kanchan.
Pithiness is formed by the collapse of parenchymatous tissue/cells in root tissue caused by excessive root growth in comparison with the corresponding assimilation ability of leaf tissue. It is the sign of senescence and its degree varies depending on the varieties to varieties.
Pusa Kanchan is a selection from the cross between Asiatic Red × Golden Ball.
Its roots are round, medium-sized, skin red and flesh light yellow. It is excellent in taste and flavour. Roots do not develop pithiness even if harvesting is delayed.

Mango seed loses their viability within 4 - 5 week.
A viable seed is capable of germination under suitable conditions. The definition includes dormant but viable seeds, in which case the dormancy must be broken before viability can be measured by germination.
Mango seeds lose viability very rapidly i.e. within 4 - 5 weeks. It is essential to clean the seed as soon as possible after its removal from the fruit. It then needs to dry in the shade for a day or two. The outer husk must be removed before planting.

The optimum seed rate (g/ha) of cauliflower is 300 - 400.
Seed rate may be defined as the amount of seed required for a unit area of land to grow any crop successfully.
For the early season variety of cauliflower seed rate of 400 gm is required whereas for the late and main season variety seed rate of 350 gm per acre is required.
Before sowing dip seeds in hot water (50°C for 30 min) or streptocycline@0.01 gm/Ltr for two hours for better yield and to avoid any contamination.

Tutti-fruiti is a processed product is prepared from both Papaya and Bottle gourd.
It is a colourful confectionery containing various chopped and usually candied fruits, or an artificial or natural flavouring simulating the combined flavour of many different fruits and vanilla.
It is prepared with unripe papaya and bottle gourd with a large amount of sugar. These candied fruits come in bright red colour, green and yellow colour.

The economic part of Asafoetida is the female Rhizome.
Asafoetida is the dried aromatic gum resin exuded from the living rhizome, rootstock, or taproot of varied plant species of the genus Ferula.
Asafoetida is extracted from the Ferula plants which have massive taproots or carrot-shaped roots, 12.5 - 15 cm in diameter at the crown when they are 4 - 5 years old.

Oleoresin is extracted from chilies.
Oleoresins are semi-solid extracts composed of resin and essential or fatty oil, obtained by evaporation of the solvents used for their production.
It is extracted from finely ground chili or paprika powder. A volatile non-aqueous solvent such as hexane, ether, or ethylene dichloride is added and allowed to thoroughly wet the material. The oleoresin enters into solution with the solvent, forming micella.

Glycoalkaloids impart a bitter taste in brinjal are Solasodine.
The presence of two kinds of steroidal saponosides imparts a bitter taste to eggplant. They are glycoalkaloids and melongosides.
Solasodine is a poisonous alkaloid chemical compound that occurs in plants of the family Solanaceae.
It has diuretic, anticancer, antifungal, cardiotonic, anti-spermatogenetic, antiandrogenic, immunomodulatory, antipyretic and various effects on the central nervous system.

Arabica coffee is Tetraploid.
It is a species of flowering plant in the coffee and madder family Rubiaceae. It is believed to be the first species of coffee to have been cultivated and is currently the dominant cultivar, representing about 60% of global production.
Coffea arabica is the only polyploid species of the genus Coffea, as it carries 4 copies of the 11 chromosomes (44 total) instead of the 2 copies of diploid species, thus tetraploid.

Arka Prasan is a variety of Ridge gourd.
It is open pollinated early variety with green, long, tender fruits, and excellent cooking quality.
It is usually ready within 42 - 45 days for first picking and Yields 26.0 t/ha in 120 - 135 days. It is mostly recommended for cultivation in Karnataka.

Browning of media causing drying of explants is mainly due to Tannins.
The underlying cause of tissue browning is the accumulation and subsequent oxidation of phenolic compounds in the tissue and culture media.
Tannins (commonly referred to as tannic acid) are water-soluble polyphenols that are present in many plant foods. It is mostly responsible for the browning of media and drying of explants in culture.