Question

The seeds which can tolerate reduction in moisture and temperature are called as

• A. Dormant seed
• B. Vernalized seed
• C. Orthodox seed
• D. Recalcitrant seed

Answer 1

The correct option is C Orthodox seed

Orthodox seeds are seeds which will survive drying and/or freezing during ex-situ conservation. According to information from the U.S. Department of Agriculture, there is variation in the ability of orthodox seeds to withstand drying and storage with some seeds being more sensitive than others. Thus, some seeds are considered intermediate in their storage capability while others are fully orthodox. Thus, option C is correct. Recalcitrant seeds (sometimes known as unorthodox seeds) are seeds that do not survive drying and freezing during ex-situ conservation. Thus, option D is wrong. A dormant seed is one that is unable to germinate in a specified period of time under a combination of environmental factors that are normally suitable for germination. Thus, option A is wrong. Vernalization is the acquisition of a plant's ability to flower in the spring by exposure to the prolonged cold of winter or by an artificial equivalent. Thus, option B is wrong.

Thus, the correct answer is option C.