(Photograph = Barrel cactus fruit and seeds, Desertoirisebotanicals.com)
Introduction
Some seeds, like avocado seeds, don’t last too long. They can dry out and die in a few months or a year. Other seeds retain viabilityfor years; they are orthodox.
The Details
Orthodox seeds are seeds that can survive a long time when dry and cool. In contrast, if you dry an avocado seed it will die. Orthodox seeds are often small, sometimes tiny and sometimes large (like corn). But, all orthodox seeds can survive for a longtime. Cactus seeds are orthodox and so survive years if treated properly.
One rule of thumb for estimating the longevity of orthodox seeds takes moisture and temperature into consideration. For each 1% you can lower the amount of water in an orthodox seed, you can double its lifespan. Thus, a seed with 14% water that is dried to 6% water will live longer, by a factor ofseven doublings. That is about a 125-fold increase in lifetime. If an orthodox seed will naturally survive for 1 year, then it will survive for 125 years if you dry it to 6% moisture content.
The secondpart of the rule states that orthodox seeds will double their lifespanfor each 10F that you lower their temperature. If seeds start out at 100F and you drop the temperature to 90F, it will live twice as long. If you cool the seeds to just above freezing, their lifetimes will be increased by a factor of six doublings (about 60 years if their original lifetime was 1 year).
The really interesting thing is that the results seem multiplicative. If you performed the two operations above (lowering moisture and reducing temperature) you couldincrease the life of orthodox seeds by 125 ×60. That is 7,500! Theoretically, you can increase the longevity of orthodox seeds by thousands of years.
You can keep dropping the temperature and seeds may be viable for tens of thousands of years. But, no one has done the experiment, so we don’t really know. Cactus seeds in the desert are subjected to winter rains and summer heat, and they probably only live a few years in desert soils.
Orthodox seeds are often small, sometimes tiny and sometimes large (like corn). But, all orthodox seeds can survive for a long time. Cactus seeds are orthodox and so survive years if treated properly. One rule of thumb for estimating the longevity of orthodox seeds takes moisture and temperature into consideration.
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.
Orthodox seeds survive to very low water contents and therefore tolerate glass formation; hence, they can be safely preserved in the freezer under conventional storage conditions. In contrast, threshold water contents for recalcitrant and intermediate seeds are higher than the water content required to form a glass.
Most plants from temperate regions go through phases of extreme desiccation and produce orthodox seeds. Orthodox seeds are seeds that have the ability to endure extreme freezing and drying conditions during ex situ conservation. Since orthodox seeds do not lose their viability, they are also considered dormant.
Thus, they have a longer lifespan compared to other seeds. The ex-situ conservation of these seeds is easy. Most food grains and legumes come under this category. Other examples include – Guava, Capsicum, Sapota, Dates, Cashews, Key lime, etc.
Orthodox seeds can be dried down to very low moisture content and can be frozen and stored for decades. Recalcitrant seeds cannot be dried or frozen, and intermediate seeds are somewhere in between orthodox and recalcitrant seeds. Most large seeds are recalcitrant, for example, coconuts, avocadoes, coffee, and papayas.
Orthodox seeds: Seeds which can be dried to low moisture content and stored at low temperature without losing their viability for long periods of time is known as orthodox seeds. (eg.) Seeds of corn, wheat, rice, carrot, papaya, pepper, chickpea, cotton, sunflower.
Orthodox seeds: seeds that can be dried to low levels of humidity and frozen for long-term storage. Eighty percent of the plant species worldwide have orthodox seeds. Examples of orthodox crop plants: peas, corn, tomatoes.
The results show that under ambient conditions, half-life is short, from 5 to 10 years, while under more optimal conditions, which for orthodox seeds is at low humidity and low temperature, half-life is more in the 40−60 years range, although with large interspecies variation.
Orthodoxy here refers to the two great bodies of Christianity that use the term to characterize their theologies and liturgies: the churches of Eastern Orthodoxy and the churches that constitute the so-called Oriental Orthodox communion.
Adjective He took an orthodox approach to the problem. She believes in the benefits of both orthodox medicine and alternative medicine. He is a very orthodox Muslim. I attend an Eastern Orthodox church.
orthodox, (from Greek orthodoxos, “of the right opinion”), true doctrine and its adherents as opposed to heterodox or heretical doctrines and their adherents. The word was first used in early 4th-century Christianity by the Greek Fathers.
Thus, meat consumption during OF would be an obstacle to the body's self-control, abstinence from passionate desires and pleasures, humility of the flesh and curbing of inborn sexual appetite; in other words, it would be contrary to the purposes of OF, not only for monks but every Orthodox Christian.
Orthodox seeds include for example, cowpea, Citrus aurantifolia,Capsicum annum,Hamelia patens, Lantana camara, guava (Psidium guajava), Cashew (Anacardium occidentale)and most grains and legume types.
Introduction: My name is Velia Krajcik, I am a handsome, clean, lucky, gleaming, magnificent, proud, glorious person who loves writing and wants to share my knowledge and understanding with you.
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