Question

Give detailed distinction between Orthodox and Recalcitrant seed.

Answer 1

Orthodox seeds are long-lived seeds and can be successfully dried to moisture con­tents as low as 5% without injury and are able to tolerate freezing. Orthodox seeds are therefore, also termed as desiccation tolerant seeds. In-fact, the life span of orthodox seeds can be prolonged with low moisture content and freezing temperatures. Ex-situ conservation of orthodox seeds is therefore, not problematic.Orthodox seeds are exemplified by most annual and biennial crops and Agroforestry spe­cies which are relatively small-seeded (in comparison to unorthodox seeds). Orthodox seeds include for example, Citrus aurantifolia, Capsicum annum, Hamelia patens, Lantana cam­era, guava (Psidium guajava), Cashew (Anacardium occidentale) and most grains and legume types.

Answer 2

Answer:

Orthodox seeds are long-lived seeds and can be successfully dried to moisture con­tents as low as 5% without injury and are able to tolerate freezing. Orthodox seeds are therefore, also termed as desiccation tolerant seeds. In-fact, the life span of orthodox seeds can be prolonged with low moisture content and freezing temperatures. Ex-situ conservation of orthodox seeds is therefore, not problematic.Orthodox seeds are exemplified by most annual and biennial crops and Agroforestry spe­cies which are relatively small-seeded (in comparison to unorthodox seeds). Orthodox seeds include for example, Citrus aurantifolia, Capsicum annum, Hamelia patens, Lantana cam­era, guava (Psidium guajava), Cashew (Anacardium occidentale) and most grains and legume types.

Explanation: