HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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soil, water, air
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suitable temperature, water, sunlight
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oxygen, water, suitable temperature
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None of the above
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Detailed explanation-1: -So, the correct answer is ‘Oxygen, moisture and suitable temperature’
Detailed explanation-2: -All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate.
Detailed explanation-3: -Germination requires the breakdown of storage compounds, and this metabolism depends upon respiration, making oxygen one of the limiting factors in seed germination. In microgravity lack of run-off of excess water requires careful testing of water dispensation and oxygen availability.
Detailed explanation-4: -Need sustained air temps about 10 degrees above desired soil temp. (65 F-75 F). Seeds need adequate moisture. Soil needs adequate oxygen.