The plant whose seeds are known to live the longest viability period is(a)Carica papaya(b)Triticum aestivum(c)Zizypus mauritiana(d)Nelumbo nucifera (2024)

FAQs

Which plant has seed with longest viability? ›

The scientific name Water lotus is Nelumbo nucifera. It has the longest duration of germination viability. Even under ideal germination conditions, the seed can remain dormant for long periods. They demonstrate germination resistance.

Seed viability is a more specific test of whether the seed embryo is still alive. There are three main groups of methods: chemical, physical, and non-invasive. The most common chemical method is to expose the embryo to tetrazolium solution.

The Great Basin Bristlecone Pine (Pinus longaeva) is a species of pine tree. It is found in the Western United States, mostly in Utah, Nevada, and California. One of these trees has been measured to be 5,065 years old! That makes it the longest living non-clonal organism found on Earth.

Scientists in Israel have confirmed that an ancient date palm seed retrieved from the rubble of Masada and successfully germinated is about 2,000 years old. That makes it the oldest seed ever to sprout, beating the previous well-documented record holder, a lotus found in a dry lakebed in China, by about 700 years.

A seed viability test is defined as any technique used to determine whether individual seeds appear to be dead or alive within a sample, which enables the proportion of live seeds in a population to be estimated (Gosling 2003).

What is viability testing. Seed or plant viability is the measure of how many seeds or how much plant material in a lot are alive and could develop into plants that will reproduce under appropriate field conditions.

Viability means whether or not a seed is alive, while germination refers to whether or not a seed can germinate. The number of seeds viable in a collection doesn't necessarily equal the number of seeds that can germinate, the difference being that some seeds are immature, or dormant ('asleep').

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.

1 year: onions, parsnips, parsley, salsify, and spinach. 2 years: corn, peas, beans, chives, okra, dandelion. 3 years: carrots, leeks, asparagus, turnips, rutabagas.

How long are sunflower seeds viable? ›

Sunflower seeds remain viable for 12 months when stored in a dry cold room, refrigerator or freezer, irrespective of the type of packaging used.

Generally, seed viability tests assess whether a seed is alive, metabolically active, and possess enzymes capable of catalyzing metabolic reactions needed for germination and seedling growth (Copeland and McDonald 2001). Thus, seed viability testing can assess tissue viability as well as viability of the entire seed.

A germination test or viability test will tell you if your seeds are still alive, and if they will germinate. More exactly, the test determines the percent of seeds that are alive. The germination rate is the % of your seeds that will germinate. Anything over 70% indicates that the seed is still good enough to be used.

Why do we test seed viability? It is important to know that the seeds that are stored in a genebank will grow to produce plants. Therefore they must have a high viability at the start and during storage.

In simple terms, it will tell you whether your pregnancy will sustain. If your pregnancy is progressing normally and the viability test doesn't bring up any form of concern, then you are most likely to have a viable pregnancy.

A cardiac viability scan is done to assess how much heart muscle has. been damaged by a heart attack or heart disease. It checks: • Blood supply to your heart. • How well your heart muscle works (viability)

A viability assay is an assay that is created to determine the ability of organs, cells or tissues to maintain or recover a state of survival.

Seed viability refers to a seed's capacity to germinate and produce a healthy seedling. Seed vigor refers to how quickly seeds germinate. The viability test is used to determine if a seed sample contains alive or dead seeds. The seed vigor test distinguishes between high and low vigor seeds.

Moisture, temperature, and the proportion of oxygen are key environmental factors that affect seed deterioration and loss of viability.

viability means that a seed is capable of germinating and producing normal seedlings. Viability denotes the degree to which a seed is alive, metabolically active and posses enzymes capable of catalyzing metabolic reactions needed for germination and seedling growth.

Which seed has a viability of 1000 years? ›

The thousands of years old viable seed of Lupinus arcticus excavated from.

3 years: carrots, leeks, asparagus, turnips, rutabagas. 4 years: peppers, chard, pumpkins, squash, watermelons, basil, artichokes and cardoons. 5 years: most brassicas, beets, tomatoes, eggplant, cucumbers, muskmelons, celery, celeriac, lettuce, endive, chicory.

Seed or plant viability is the measure of how many seeds or how much plant material in a lot are alive and could develop into plants that will reproduce under appropriate field conditions.

The oldest is that of a lupine, Lupinus arcticus excavated from Arctic Tundra. The seed germinated and flowered after an estimated record of 10,000 years of dormancy.

The viability of the seed accession is a measure of how many seeds are alive and could develop into plants which will reproduce themselves, given the appropriate conditions.

How long pepper seeds remain viable depends on how they are stored, but we say that 2-5 years is realistic. It really depends on if they were fully dried before storing. To store for long term, you need to keep the seeds cool and dry.

It's best practice to do a quick viability test to check your germination rate prior to planting when using older seed. Flowers: (As a general rule, most annual flower seeds are viable for 1-3 years and perennial seed for 2-4 years.)

Storage and Viability

When stored under cool, dry conditions, radish seeds can be expected to remain viable for six years.

Viability means whether or not a seed is alive, while germination refers to whether or not a seed can germinate. The number of seeds viable in a collection doesn't necessarily equal the number of seeds that can germinate, the difference being that some seeds are immature, or dormant ('asleep').

How do you determine viability of a seed? ›

You can calculate the "mean number of days to 50% germination" as follows: for each day, multiply the number of seeds that germinated by the day you counted them, then add all of those values and divide that number by the total number of germinated seeds.

Depending upon the variety and sowing time, it takes about 12 to 18 months for sugarcane to mature.