Plant Pathology - Study Mode

[#671] Teleomorph of Colletotrichum falcatum is
Correct Answer

(B) Glomerella tucumensis

Explanation

Solution: The teleomorph of Colletotrichum falcatum is Glomerella tucumensis. Glomerella cingulata is a fungal plant pathogen, being the name of the sexual stage (teleomorph) while the more commonly referred to asexual stage (anamorph) is called Colletotrichum gloeosporioides. This pathogen is a significant problem worldwide, causing anthracnose and fruit rotting diseases on hundreds of economically important hosts.

[#672] Fertilisers SSP dissolve in soil to furnish phosphate, calcium and
Correct Answer

(C) Sulphur

Explanation

Solution: Fertilizers SSP dissolve in the soil to furnish phosphate, calcium and Sulphur. SSP is the most popular phosphatic fertilizer after DAP as it contains 3 major plant nutrients namely Phosphorus, Sulphur and Calcium along with traces of many micro-nutrients. SSP is indigenously available and supply can be made at short notice. Oilseed farmers have special preference for SSP.

[#673] Calcium cynamide is a/an
Correct Answer

(B) Amide fertilisers

Explanation

Solution: Calcium cynamide is a/an Amide fertilisers. Calcium cyanamide is an inorganic compound with the formula CaCN 2 . It is the calcium salt of the cyanamide (CN 2- 2 ) anion. This chemical is used as fertilizer and is commercially known as nitrolime. Calcium cyanamide is used as a fertilizer, pesticide, and in the manufacture of other chemicals.
It is irritating to the eyes, skin, and respiratory tract in humans. Acute (short-term) inhalation exposure may cause gastritis, rhinitis, pharyngitis, laryngitis and tracheobronchitis.

[#674] Repeated applications of pesticides produce
Correct Answer

(A) Immune strains

Explanation

Solution: Repeated applications of pesticides produce Immune strains. Exposure to pesticides induces modifications in the immune system according to the specific pesticide and includes the alteration of well-regulated immune responses to tumor antigens, allergens, self-antigens and microbial antigens that can increase the susceptibility of the organism to develop various types of cancers.

[#675] Promycelium in rust fungi bears
Correct Answer

(A) Basidiospores

Explanation

Solution: Promycelium in rust fungi bears Basidiospores. Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales. Rust fungi require two unrelated hosts to complete their life cycle, with the primary host being infected by aeciospores and the alternate host being infected by basidiospores. They usually do not infect a plant directly, instead, they germinate to produce basidia and basidiospores. Basidiospores are windborne haploid spores that often infect the alternate host in Spring.