Horticulture MCQ Question and Answer | Agriculture MCQ Question

Haulms in the seed crop of potato are cut during End of the December or, the 1^st week of January.
Potato Haulms are the stems or tops of crop plants (such as peas or potatoes), especially after the crop has been gathered.
Haulm killing refers to killing potato vines (haulms) 7 to 21 days before harvest to promote uniform development of skin colour and develop abrasion resistance.

Citrus fruit with the highest malic acid content is Sweet lime.
Although apples are the wealthiest source of malic acid, among the citrus fruits, malic acid was the dominant acid in sweet lime.
Lime gives a drink a different kind of sourness since it contains not only citric acid but also malic acid and a small but significant amount of succinic acid, each of which adds something different.

Bael is the fruit that is the richest source of riboflavin.
It is fiber-rich, low-calorie fruit that provides some protein and very little fat. Bael fruit is an excellent source of riboflavin and also provides vitamin C, vitamin A and potassium.
Bael contains chemicals called tannins, flavonoids, and coumarins. These chemicals help to reduce swelling (inflammation). This might help treat asthma, diarrhea and other conditions. Also, some of these chemicals help to reduce blood sugar.

Pant Sudarshan is a variety of karonda.
The plants of this variety are medium-sized dense bushes. Fruits are pink blush on white background. On ripening fruits become dark brown. Average fruit weighs 3.46 g, seeds 4.68/fruit, flesh 88.47%, dry weight 11.83%, TSS 3.45%.
It is a hardy, drought-tolerant plant that thrives well in a wide range of soils.

Pusa Bindu is brinjal while Arka Bindu is Onion.
Pusa Bindu: Plants are pigmented all over, upright with a moderate branching habit, and free of spines. Fruits pendant, small, oval-round, glossy, violet purple with pigmented peduncle. Bearing habit is solitary to partial clusters. The average yield is 300 g/ha. Fruits are milky white, shining and oval.
Arka Bindu: Suitable for the export market, gives deep pink bulb of small size (2.5 - 3.5 cm), flattish globe shape, high T.S.S (14 - 16%), and high pungency. Bulbs mature in 100 days from sowing. Bulb yields 25 t/ha.

Brown heart in turnip is a physiological disorder caused by deficiency of Boron.
The leaves are smaller than normal. The roots do not grow to full size and under conditions of severe boron deficiency, they remain very small and distorted and have a rough, unhealthy, greyish appearance instead of being clean and smooth. Their surface often is wrinkled and cracked. Within the fleshy roots, hard or corky spots are found scattered throughout the roots.
Boron deficiency is more common in a dry season, particularly when a long dry spell is followed by a wet period favouring rapid growth, most probably because the root system in the upper soil layer ceases to function during the dry period, and thus the intake of boron is reduced.
The quantity of borax needed for satisfactory control of boron deficiency varies with the nature of the soil, the soil reaction and soil moisture. An application of 10 - 15 kg of borax per hectare is recommended.

The following vegetables that are classified as solanaceous fruits are Potato, Tomato and brinjal.
The family Solanaceae includes many economically and nutritionally important cultivated plant species such as tomato, potato, eggplants and chili peppers.
The Solanaceae or nightshades, are a family of flowering plants that range from annual and perennial herbs to vines, lianas, epiphytes, shrubs, and trees, and includes several crops, medicinal plants, spices, weeds and ornamentals.

The Pole type variety of French bean is Arka Soumya.
Arka Sukomal is high yielding rust-resistant pole bean variety.
Plants are indeterminate and grow more than 2.0 min height.
Variety takes 60 days for 1^st harvest.
Pods are stringless, oval, green and long (23 cm).

Botanically pineapple fruit is sorosis.
Sorosis is a fleshy fruit formed by the consolidation of many flowers with their receptacles, ovaries, etc, as the breadfruit, mulberry and pineapple.
It is a tropical plant with edible fruit, it is the most economically significant plant in the family Bromeliaceae. Pineapples grow as small shrubs; the individual flowers of the unpollinated plant fuse to form multiple fruits., it is a composite type of fruit, thus also called sorosis type.

Heterostyly is seen in Primula.
Heterostyly is a morphological and reproductive polymorphism in which plant populations are composed of two (distyly) or three (tristyly) floral morphs that differ reciprocally in the height of their stigmas and anthers.
Primula vulgaris (primrose) exhibits heterostyly: plants produce self-incompatible pin- or thrum-form flowers, with anthers and stigma at reciprocal heights.