Agriculture - 5 (B.Sc. Agriculture)

Honey is a rich source of carbohydrate.  In 100 grams of honey, only 3 milligrams of protein is obtained. 

The sprouting time of seeds may vary according to temperature and humidity of the weather.

The fungus that causes coffee rust is autoecious.

Amla (Indian gooseberry, Emblica officinalis) is one of the richest natural sources of vitamin C, containing approximately 600-900 mg per 100g, far exceeding citrus fruits like oranges (about 53 mg per 100g). Mango, apple, and milk are significantly poorer sources of vitamin C.

Soil preparation (tilling) brings nutrient-rich subsoil to the surface where crops can access these nutrients. It improves aeration and root penetration. Tilling does not primarily aim to kill microbes or earthworms (both beneficial), nor does it directly remove weeds (that's weeding).

Orange is a rich source of vitamin C.

.

Xanthophylls are yellow, orange, and red pigments belonging to the carotenoid family. They become visible when chlorophyll degrades (autumn leaf color). Chlorophyll is green. 'Leucophyll' is not a standard term - white pigments are typically chromoplasts without pigment. Erythrophyll is not standard botanical terminology.

Bt brinjal (genetically modified eggplant) was developed with genes from Bacillus thuringiensis to produce insecticidal proteins, providing resistance against the brinjal fruit and shoot borer (Leucinodes orbonalis). It was not developed for shelf life, mineral enhancement, or drought resistance.

Ans - (2)

Wildfire of tobacco is caused by Pseudomonas syringae, a rod-shaped, gram-negative bacterium with polar flagella. 

It is a mixed type inflorescence having a number of simple dichasial cymes arranged in a recemose manner on an elevated peduncle. It is found in ocimum.

Sowing is the agricultural practice of placing seeds into the soil at the appropriate depth for germination and growth. Roots develop from seeds, chemicals and DDT are not sown, and sowing specifically targets seeds not other plant parts.

Composite or multiple fruits (like pineapple, fig, mulberry) develop from the entire inflorescence (cluster of flowers), where each flower produces a fruit that fuses into a single structure. Simple fruits develop from a single ovary, and aggregate fruits develop from multiple separate ovaries of a single flower.