Agronomy - Study Mode

[#381] Cultivation of durum wheat is primarily confined to
Correct Answer

(A) Central India

Explanation

Solution: Durum wheat is spring wheat and it is not much grown in India, despite that it is grown mainly in the central zone which includes the states of Madhya Pradesh, Gujarat, South Rajasthan and Maharashtra. Although durum wheat is known for its high protein content it is not so good to prepare chapatis, hence extensively grown for pasta production.

[#382] HB-1 hybrid ofbajrareleased in 1965 evolved from a cross
Correct Answer

(A) Tift-23-A × BIL-3B

Explanation

Solution: HB-1 is the first hybrid of bajra (pearl millet) released in India in 1965 . It was developed through a cross between Tift-23-A (a male sterile line) and BIL-3B (a restorer line). This hybrid was part of the initial efforts in hybrid bajra breeding and marked a significant milestone in Indian agronomy. Tift-23-A played a crucial role as a cytoplasmic male sterile (CMS) line, which is essential for hybrid seed production. The successful release of HB-1 demonstrated the potential of hybrid technology in improving pearl millet yields in India.

[#383] Kabuli gram belongs to the family of
Correct Answer

(C) Leguminosae

Explanation

Solution: Kabuli gram i.e. chickpeas is a type of legume and it belongs to Leguminosae or Fabaceae family. It is an annual plant and is widely grown for its nutritional value. The main characteristic of this family is the presence of rhizomes in the root nodules of the plant for atmospheric nitrogen fixation by the bacteria present in the soil.

[#384] Zero-till 'seed drill' is used for sowing of
Correct Answer

(C) Wheat in rice-wheat cropping system

Explanation

Solution: Zero–the till-seed drill is most commonly used for sowing wheat crops in unprepared fields used just after harvesting paddy. Undoubtedly it saves money, time and labor. It also saves one pre irrigation. While it is done by the use of an instrument that has a high speed furrow opener and accurate seed dropping technique. A very durable and reliable product that ensures zero tillage of seeds.

[#385] In case of Zn deficiency in paddy, how much zinc sulphate should be applied in one hectare of soil?
Correct Answer

(C) 25 kg

Explanation

Solution: Zinc is one of the essential elements in paddy plants as it involves nitrogen assimilation and protein metabolism. And at the same time availability of zinc is lower in submerged fields like paddy plantations in comparison to normal upland fields. So, it is required to add zinc rich fertilizers to the paddy fields approximately 25 kg per hectare.