provenance variations 中文意思是什麼
provenance variations
解釋
原產地變異,種源變異- provenance : n. 起源，出處；原產地。 of doubtful provenance 出處可疑的。
- variations : 變更
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Genetic variations in different levels of masson pine ( pinus massoniana lamb. ) in main traits were studied on the basis of the 12 - year - old data of provenance tests at 7 test locations and the 11 - year - old data of plus progenies at 2 test locations, and the index and strategy in different variation levels on selection breeding for pulpwood in masson pine was also discussed
以7個試驗點12年生馬尾松種源試驗林及2個試驗點11年生優樹子代測定林為基礎材料，在研究馬尾松主要性狀不同層次遺傳變異的基礎上，對馬尾松制漿造紙材良種選育目標及在不同變異層次的選擇策略進行了探討。
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