Breeding of forest trees. In the narrow sense, it means creating genetically superior materials than previous materials, but today it means genetically managing forest tree populations, i.e. forests. When cultivating forests through natural regeneration, the parent trees must be those that are already there, and when cultivating forests by planting, the genetic composition of the planted materials is affected by thinning and other maintenance, so creating superior materials is only a part of forest tree breeding. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
林木を対象とする育種。狭い意味では,これまでの材料よりも遺伝的に優れたものをつくりだすことであるが,今日では,林木の集団つまり森林を遺伝的に管理することを意味している。天然更新によって林を仕立てる場合には,もともとそこにあるものを親木(おやぎ)として使わなければならないし,植栽して林を仕立てる場合にも,植えこんだ材料の遺伝的組成は間伐などの手入れによって影響をうけるから,優れた材料をつくりだすことは林木育種の一部にすぎない。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Neighborhood system - Rinposei
Common sense tells us that some future events are...
...refers to changing one's appearance (cloth...
Order: Hynobiidae, Family: Hynobiidae. Total lengt...
This is a color reaction of proteins. Xantho- is ...
A general term for marine invertebrates that have...
Secretly eavesdropping on other people's conv...
...The main focus is on the Kuse and Jo-no-mai da...
...As a result, various Anabaptist sects, such as...
[Born] Emperor Wen 1 (179 BC)? Jiangsu [Death] Gen...
A deciduous tall tree of the family Ilex (APG cla...
...The city then rapidly declined due to the adva...
...It is only possible that humans know other thi...
This is a float scale used to measure urine specif...
Glass artist. Born in Nihonbashi, Tokyo. He initi...
A bankruptcy claim is a claim against a bankrupt ...