- period of seedling establishment
- 返青期
English-Chinese Dictionary of Agriculture (英汉农业大词典). 2013.
English-Chinese Dictionary of Agriculture (英汉农业大词典). 2013.
Germination — is the process whereby growth emerges from a period of dormancy. The most common example of germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm. However, the growth of a sporeling from a spore, for example the… … Wikipedia
seed and fruit — ▪ plant reproductive part Introduction respectively, the characteristic reproductive (reproductive system, plant) body of both angiosperms (flowering plants) and gymnosperms (conifers, cycads, and ginkgos) and the ovary that encloses it.… … Universalium
Seed — A seed Audio IPA|en us seed.ogg|/ˈsiːd/ (in some plants, referred to as a kernel) is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and… … Wikipedia
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
Pando (tree) — Pando (or The Trembling Giant)cite web |url=http://discovermagazine.com/1993/oct/thetremblinggian285 |title=The Trembling Giant |accessdate=2008 05 08 |publisher=Discover Magazine |date=1993 10 01 |author=Grant, Michael C. ] is a clonal colony of … Wikipedia
Ecology of Banksia — The ecology of Banksia refers to all the relationships and interactions among the plant genus Banksia and its environment. Banksia has a number of adaptations that have so far enabled the genus to survive despite dry, nutrient poor soil, low… … Wikipedia
temperate forest — ▪ ecology Introduction vegetation type with a more or less continuous canopy of broad leaved trees. Such forests occur between approximately 25° and 50° latitude in both hemispheres (seeFigure 1 >). Toward the polar regions they grade into… … Universalium
History of agriculture in the People's Republic of China — For over 4,000 years, China has been a nation of farmers. By the time the People s Republic of China was established in 1949, virtually all arable land was under cultivation; irrigation and drainage systems constructed centuries earlier and… … Wikipedia
Ecology — For other uses, see Ecology (disambiguation). Ecology … Wikipedia
Sierra Nevada subalpine zone — The Sierra Nevada subalpine zone refers to a biotic zone below treeline in the Sierra Nevada mountain range of California, United States. This zoneis positioned between the upper montane zone (such as red fir forest) at its lower limit, and tree… … Wikipedia
Black-tailed prairie dog — At Wichita Mountains Wildlife Refuge … Wikipedia