Question

Q.14 Why do seeds with hard seed coats take longer to germinate than seeds with soft
seed coats?

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Answer 1

Answer:

The reason seeds with hard seed coats take longer to germinate is that it takes longer for the seed to drink enough water to soften the seed coat enough that the inside parts of the seed can breakthrough.

There are also other reasons some seeds take longer to germinate than others.

Here are a few of them:

The amount of sunshine. Seeds don’t see the sun, but the sun heats the soil to make it warm and cozy—which is just what a seed needs to germinate.

The amount of water in the ground. If the soil is too dry, the seed cannot get the water it needs. If it is too wet, the ground will not have enough oxygen in it to give the seed what it needs to germinate.

Planting the seed too deep. If you plant a seed too deep, it will use all the energy and food stored in the cotyledon before it can break through the ground so the leaves can come out and take over feeding the plant.

The seasons. Most seeds will not germinate in the fall or winter. The ground is too cold during these two seasons for a seed to germinate. Instead, the seeds sleep until spring. When a seed sleeps, it is dormant