DENDROLOGY AND SOCIETY
PLANT CLASSIFICATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
warm temperature and water
|
|
|
oxygen and nutrients
|
|
|
water and carbon dioxide
|
|
|
oxygen and carbon dioxide
|
Detailed explanation-1: -All seeds need water, oxygen and the right temperature to germinate. Dormancy is a state of suspended animation in which seeds delay germination until conditions are right for survival and growth. Some Australian plants need fire or smoke to germinate, while others rely on insects and animals.
Detailed explanation-2: -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. The embryo’s cells start to enlarge.
Detailed explanation-3: -Seeds require a certain temperature in order to germinate. Each plant has a specific optimum and a range within which germination will occur. The closer the temperature is to optimum, the quicker germination will occur. Most seeds germinate when the soil temperature is between 68° and 86°F.
Detailed explanation-4: -Temperatures between 25 ° C and 35 ° C are ideal for seed germination.