Tomato Seed Extraction: Tomato seeds are encased in a gelatinous mucilaginous sheath containing natural germination inhibitors that must be degraded to prevent fermentation injury.
Alkali Extraction Method: Soaking pulped tomato seed mass in a 10% Sodium Carbonate ($Na_2CO_3$) solution for 24–48 hours safely dissolves the gelatinous envelope without harming seed viability or vigor. (Correct answer: Option 1)
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2
ICAR JRF Seed Science And Technology 29 Jun 2024Shift 1
MCQ (Single Correct)+4−1
Cryotherapy is used for the elimination of viruses in
modern biotechnology where shoot tips are exposed to ultra-low liquid nitrogen temperatures ($-196^\circ\text{C}$).
Highly vacuolated, virus-infected differentiated cells in the lower meristem dome are selectively destroyed by intracellular ice crystallization, while small, uninfected, dense meristematic dome cells survive.
Successfully deployed to eliminate Banana Streak Virus (BSV) and Cucumber Mosaic Virus (CMV) from banana shoot tips. (Correct answer: Option 1)
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