List-I
(Crop)List-II
(First hybrid variety)(A) Maize (I) CSH-1 (B) Jowar (II) H-4 (C) Bajra (III) HB-1 (D) Cotton (IV) Ganga-1
Choose the correct answer from the options given below:
Matching Crop First Hybrid Varieties
This question asks us to match different crops with their first hybrid varieties. Successfully matching these pairs requires knowledge of agricultural history and development in India.
| Crop (List-I) | First Hybrid Variety (List-II) | Correct Pairing |
|---|---|---|
| (A) Maize | (IV) Ganga-1 | (A) - (IV) |
| (B) Jowar | (I) CSH-1 | (B) - (I) |
| (C) Bajra | (III) HB-1 | (C) - (III) |
| (D) Cotton | (II) H-4 | (D) - (II) |
Understanding the Crop-Variety Matches
Let's look at each crop and its corresponding first hybrid variety:
- Maize: The first hybrid variety of maize developed in India was 'Ganga-1'. This pioneering hybrid significantly boosted maize production. So, Maize (A) matches with Ganga-1 (IV).
- Jowar: The first improved hybrid variety of Jowar (also known as Sorghum) released in India was 'CSH-1'. This variety was crucial for increasing yields in sorghum cultivation. Therefore, Jowar (B) matches with CSH-1 (I).
- Bajra: The first hybrid variety of Bajra (Pearl Millet) that was developed and released was 'HB-1'. This marked an important step in improving bajra productivity. Thus, Bajra (C) matches with HB-1 (III).
- Cotton: The first hybrid variety of cotton developed in India was 'H-4'. This development was a major breakthrough in cotton farming. Hence, Cotton (D) matches with H-4 (II).
Combining these matches, we get the correct sequence: (A) - (IV), (B) - (I), (C) - (III), (D) - (II).
Important Questions from Breeding
Which of the following is an indigenous dairy breed of cattle?
Given below are a few statements on use of plant breeding to develop improved varieties of a crop plant:
A: Genotypic/phenotypic variation in the desired trait should be available in the germplasm resources of the crop plant.
B: Availability of molecular markers linked to the trait of interest would decelerate the process of trait introgression into desired varieties.
C: Breeding procedures to improve plant varieties are generally more successful among sexually compatible species as compared to sexually incompatible species.
D: Co-dominant molecular markers cannot be used for selection of plants with the desired trait.
Which of the above statement(s) is/are INCORRECT?
Given below are some terms in column A and their corresponding properties/related terms in column B
Which one of the following options represents the most appropriate match between all terms of column A and B?Column X Column X A Bulk segregant
analysis(i) QTL analysis of wider genetic diversity using fewer individuals B NILS (ii) Mapping monogenic qualitative trails C Association mapping (iii) Co-dominant markers D SNPs (iv) Repeated backcrossing of F1 to recurrent parent Which one of the following approaches/markers would be typically used for discovering polymorphism between two closely related accessions of a crop plant?
A group of researchers are testing two new agents, M1 and M2 for their efficacy in selecting transgenic plants. When they performed tissue culture experiments using three explants, A, B, and C without Agrobacterium transformation, and selected the regenerated plants on M1 and M2, the following regeneration frequencies were obtained.
Regeneration frequencies (%) in presence of different concentration of agents Explant type M1 conc. (mg/L) M2 conc. (mg/L) 20 60 100 10 15 20 A 44% 21% Nil 8% Nil Nil B 53% 30% 10% Nil Nil Nil C 71% 42% 18% 15% 9% 4% Based on the above data, which one of the following conclusions is INCORRECT?
