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Dacrycarpus dacrydioides, commonly known as kahikatea (from Māori) and white pine, is a coniferous tree endemic to New Zealand. A podocarp , it is New Zealand's tallest tree, gaining heights of 60 m over a life span of 600 years.
The results of a germination test are commonly expressed as germinative capacity or a germination percentage, which is the percentage of seeds that germinate during a period of time, ending when germination is practically complete. During extraction and processing, white spruce seeds gradually lost moisture, and total germination increased.
Pine nuts, also called piñón (Spanish:), pinoli (Italian: [piˈnɔːli]), or pignoli, are the edible seeds of pines (family Pinaceae, genus Pinus).According to the Food and Agriculture Organization, only 29 species provide edible nuts, while 20 are traded locally or internationally [1] owing to their seed size being large enough to be worth harvesting; in other pines, the seeds are also ...
It is a measure of germination time course and is usually expressed as a percentage, e.g., an 85% germination rate indicates that about 85 out of 100 seeds will probably germinate under proper conditions over the germination period given. Seed germination rate is determined by the seed genetic composition, morphological features and ...
It is uncommon for pathogens to be transmitted from the plant to its seeds (in sexual reproduction or in apomixis), though there are occasions when it occurs. [2] [page needed] Seeds generated by apomixis are a means of asexual reproduction, involving the formation and dispersal of seeds that do not originate from the fertilization of the embryos.
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Eastern white pine is self-fertile, but seeds produced this way tend to result in weak, stunted, and malformed seedlings. Mature trees are often 200–250 years old, and some live over 400 years. A tree growing near Syracuse, New York , was dated to 458 years old in the late 1980s and trees in Michigan and Wisconsin were dated to roughly 500 ...
Pinus ayacahuite, also called ayacahuite pine [2] and Mexican white pine, [2] (family Pinaceae) is a species of pine native to the mountains of southern Mexico and western Central America, in the Sierra Madre del Sur mountains and the eastern end of the Eje Volcánico Transversal, between 14° and 21°N latitude in the Mexican states of Guerrero, Oaxaca, Puebla, Veracruz and Chiapas, and in ...
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