Safflower (Carthamus tinctorius) belongs to family Compositae (Asteraceae). Its inflorescence is capitulum and fruit is achene, typical of this family.

Nicotine is mainly produced in the roots of tobacco and then transported through the stem to the leaves, where it is stored.

Due to the presence of toxic glucosinolates, mustard cake is unsuitable as a protein source for humans and cattle beyond limits. The upper limit is fixed at 0.5% by the government

Root rot (Rhizoctonia solani) is managed by drenching carbendazim 0.05% at the initial stage of disease and repeating after one month.

Safflower (Kusum) contains about 78.5% linoleic acid, the highest among oilseeds mentioned, making it highly suitable for heart patients.

Catch crops are short-duration, quick-growing crops raised as substitutes when the main crop fails due to adverse conditions.

Brown sarson (Brassica comp. var. sarson) variety includes Pusa Kalyani, while Yellow sarson includes Benoy. Varuna (T-59) belongs to Indian mustard (B. juncea).

The recommended seed rate for sesame is 3–4 kg/ha for row sowing, 4–5 kg/ha for broadcasting, and 1 kg/ha in mixed/intercropping systems.

Skip cropping involves leaving a line unsown in the regular row series. It is generally practiced to conserve moisture under dryland conditions.

India produces about 70% of the world’s cumin and consumes about 90% of its own production (i.e., ~63% of world cumin).

Topping (removal of flower heads) and de-suckering (removal of auxiliary buds) help divert energy and nutrients from flowers to leaves, improving leaf size and quality.

Guar, also known as clusterbean, contains about 30–33% gum, which is commercially important for industrial uses.

Flue Cured Virginia (FCV) tobacco is mainly used for cigarettes and is the major exportable type, covering about 30% area and 20% production.

As per the given data (2016), Myanmar ranks first in sesame production globally, while India stands second.

Arable crops are those that require preparatory tillage before cultivation. Examples include potato, tobacco, rice, sugarcane and maize.

Fusarium wilt survives as a saprophyte in soil and is both soil- and seed-borne, making it difficult to control once established.

Sesame oil is highly stable due to natural antioxidants like sesamin and sesamol, which provide strong resistance to oxidation and rancidity, giving it a long shelf life.

Sesame fruits are capsules that burst open at full maturity to release seeds. This natural opening mechanism is called dehiscence

Buckwheat leaves and flowers contain Rutin, a bioactive compound of medicinal importance, making it nutritionally significant as a pseudocereal.

White rust in mustard is caused by Albugo candida. It commonly appears during the stag head phase and is an important disease of rapeseed-mustard crops.

Buckwheat belongs to family Polygonaceae and its fruit type is an achene, a key botanical fact frequently asked in exams.

Early-stage control of major castor pests includes dusting quinalphos 1.5% @ 20 kg/ha or spraying 0.1% monocrotophos.

Being day-neutral, sunflower is not sensitive to photoperiod and can be cultivated in Kharif, Rabi, and Zaid seasons.

In complementary cropping, both crops benefit from each other; for example, jowar receives nitrogen from lobia, while lobia gets structural support from jowar.

Fusarium wilt (Fusarium oxysporum f. sp. cumini) is the most destructive disease of cumin and can cause yield losses up to 80%. It affects plants at both seedling and later stages.

Linseed oil contains more than 66% linolenic acid, making it a perfect drying oil used in paints, varnish, printing ink, and oil cloth industries.

Hay should be stored at 15–18% moisture (<20%) to prevent spoilage and maintain quality. Higher moisture may lead to fungal growth and heating.

Castor (Ricinus communis) belongs to family Euphorbiaceae. Its oil is non-edible, and the plant is monoecious (both male and female flowers on the same plant).

Mixed cropping involves growing two or more crops together without maintaining any specific row pattern, mainly to reduce risk of total crop failure.

Coriander seeds contain 0.1–1.0% essential oil, which is responsible for their characteristic aroma and taste.

Fenugreek seeds are treated with Azospirillum (1.5 kg/ha) along with Trichoderma viride @ 50 g for 12 kg of seeds to enhance growth and control diseases.

Swan grass (Lasiurus sindicus) is listed under other forage crops and is commonly found in Western Rajasthan, particularly Jaisalmer.

Assam ranks first in tea production in India. Major growing areas also include Darjeeling (West Bengal) and Nilgiri hills (Tamil Nadu).

Cumin seeds contain volatile oil (2.5–4.0%) and aldehyde cuminol (cuminaldehyde), which gives characteristic aroma and medicinal properties.

Zeeri closely resembles cumin in early stages; hence pendimethalin @ 1.0 kg/ha as pre-emergence is recommended to manage this weed effectively.

Pungency in mustard is due to isothiocyanate, which is formed by enzymatic hydrolysis of glucosinolates. This reaction is common in cruciferous crops.

Relay cropping involves sowing the next crop before harvesting the main crop, allowing overlap and better utilization of time and land.

Maize is the most suitable crop for silage due to its high sugar content and proper moisture, ensuring good fermentation.

Cumin is a small-seeded crop; hence shallow sowing at 1–2 cm depth is recommended for proper germination and emergence.

Powdery mildew is controlled by spraying wettable sulphur (1 kg/ha) or 0.2% karathane at initial appearance, with a second spray after 10 days.

Wilt in coriander is managed by seed treatment with Pseudomonas fluorescens @ 10 g/kg followed by soil application of Pf1 @ 5 kg/ha.

Sunflower (Helianthus annuus) has a capitulum type inflorescence, which appears as a disk-like flower head typical of family Asteraceae.

The standard and best plucking method in tea is “two leaves and a bud,” which ensures superior quality and optimum yield.

Madhya Pradesh is the leading producer of linseed in India, followed by Uttar Pradesh, as mentioned in the text.

The castor semi-looper and capsule borer are identified as the two most serious pests of castor crop, causing major yield losses.

Cole crops belong to the family Cruciferae and are cold-weather crops capable of withstanding considerable frost.

Intercropping refers to growing two or more crops simultaneously with a definite row arrangement, ensuring better resource utilization and management.

Paired row cropping involves removing every third row and is suitable for dryland conditions with the objective of conserving soil moisture.

Ratooning is the practice of obtaining a second crop from the regrowth of the previous crop, e.g., ratoon sugarcane.

NRC-HB-506 is recognized as the first hybrid of mustard developed by the Directorate of Rapeseed and Mustard Research, Bharatpur, Rajasthan (Feb 2009).

Sesame contains 50–60% oil and is rich in PUFA, primarily linoleic acid (37–47%), which contributes to its nutritional value.

Powdery mildew (Erysiphe polygoni) is managed by dusting sulphur @ 25 kg/ha or spraying wettable sulphur (0.25%) or dinocap (0.05%).

Rajasthan is the leading producer of coriander seed in India, followed by Madhya Pradesh. This is a frequently asked factual question in agriculture exams.

Safflower is highly drought tolerant and performs well under rainfed and dryland farming conditions.

Although coriander can be grown throughout the year for leaf purpose (except very hot season), higher grain yield is obtained when grown in the Rabi season.

Priming is the staged removal of matured leaves. The entire harvest requires 5–6 primings and is common in cigarette and wrapper tobacco.

In fennel, seed rate for direct sowing is 9–12 kg/ha, whereas for transplanting it is 3–4 kg/ha using about 100 m² nursery area.

Cumin blight incidence increases under cloudy weather conditions after flowering, which favors fungal development.

Leaf hopper acts as the vector of phyllody disease in sesame. Effective control of the vector helps manage the disease.

Phyllody is the most destructive disease of sesame caused by phytoplasma and transmitted by leaf hopper. It appears at flowering stage and converts floral parts into leafy structures.