Fruits of vegetable marrow are ready for 1st picking after

Answer: Option B

Fruits of vegetable marrow are ready for 1^st picking after 60 - 80 days.
The first harvesting of vegetable marrow was done at 64 - 65 days after sowing (DAS) in case of direct seeding and at 22 - 31 days after transplanting in case of seedlings by hand picking. Marrow is a cucurbit, which means it's from the same family as the melon, cucumber, squash and courgette.
Marrows, like zucchini, are low in food energy (approximately 71 kJ or 17 kcal per 100 g fresh marrow) and contain useful amounts of folate, potassium and provitamin A.