DENDROLOGY

Detailed explanation-1: -oh sunlight it’s time for photosynthesis eventually the growing plant bursts open through the seed coat in search of sunlight to start its own process of photosynthesis once the seed coat falls. off the root starts growing downwards to anchor the seed. and a search for more food and nutrients from the soil.

Detailed explanation-2: -Germination is the process by which a plant grows from a seed into a seedling. Seeds remain dormant until conditions are favorable for germination. All seeds need water, oxygen and optimal temperature to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.

Detailed explanation-3: -Seed germination is defined as the sum of events that begin with hydration of the seed and culminate in emergence of the embryonic axis (usually the radicle) from the seed coat.

Detailed explanation-4: -By rupturing of the seed coats helps to emerge the radicle and the plumule to form a primary root. This stage is referred to as an imbibition. So, the correct answer is ‘Massive imbibition of water’.