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Seed vigor is a measure of the quality of seed, and involves the viability of the seed, the germination percentage, germination rate, and the strength of the seedlings produced. [ 47 ] The germination percentage is simply the proportion of seeds that germinate from all seeds subject to the right conditions for growth.
The gymnosperms (/ ˈ dʒ ɪ m n ə ˌ s p ɜːr m z,-n oʊ-/ ⓘ JIM-nə-spurmz, -noh-; lit. ' revealed seeds ') are a group of woody, perennial seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include conifers, cycads, Ginkgo, and gnetophytes, forming the clade Gymnospermae [2] The term gymnosperm comes from the ...
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (/ ˌ æ n dʒ i ə ˈ s p ər m iː /). [5] [6] The term 'angiosperm' is derived from the Greek words ἀγγεῖον / angeion ('container, vessel') and σπέρμα / sperma ('seed'), meaning that the seeds are enclosed within a fruit.
A seed plant or spermatophyte (lit. ' seed plant '; from Ancient Greek σπέρματος (spérmatos) 'seed' and φυτόν (phytón) 'plant'), also known as a phanerogam (taxon Phanerogamae) or a phaenogam (taxon Phaenogamae), is any plant that produces seeds.
Poppy seeds and fixed oils can also be nonnarcotic because when they are harvested about twenty days after the flower has opened, the morphine is no longer present. [4] Poppy cultivation is strictly regulated worldwide, with the exception of India where opium gum, which also contains the analgesic thebaine , is legally produced.
Growing milkweed from seed is an easy way to make your garden a monarch landing zone. ... (also known as blood flower), the Xerces Society recommends deadheading the flowers before it sets seed to ...
Rapeseed (Brassica napus subsp. napus), also known as rape and oilseed rape, is a bright-yellow flowering member of the family Brassicaceae (mustard or cabbage family), cultivated mainly for its oil-rich seed, which naturally contains appreciable amounts of mildly toxic erucic acid. [2]
Papaver somniferum, commonly known as the opium poppy [2] or breadseed poppy, [3] is a species of flowering plant in the family Papaveraceae.It is the species of plant from which both opium and poppy seeds are derived and is also a valuable ornamental plant grown in gardens.