seedling selection 中文意思是什麼
seedling selection
解釋
籽苗選擇-
On the basis of referring to the relative datas and summarizing seedling culture experiences, photinia x clonal cutting seedling culture technology was summarized from the aspects of seedling nursery site selection and planning, scion - plucking nursery building and management, cutting technology, seedling transplantation and disease and insect control, etc., which provided the references for photinia x seedling large - scale production
摘要在查閱有關文獻和總結育苗經驗的基礎上，從苗圃地的選擇與規劃、采穗圃的營建及管理、 ?插技術、苗木移栽及病蟲害防治等方面總結了紅葉石楠無性?插育苗技術，為紅葉石楠苗木的規模化生產提供參考。 -
This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits
本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究，表明除正常幼苗百分率外，其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關，因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展，指明通過遺傳育種手段改良這些性狀是可能的 -
An experimental report on the herbicide selection for no - tillage seedling - casting paddy
免耕拋秧稻田除草劑篩選試驗報告 -
Study on the selection of immigrating adult whitebacked planthoppers to the periods of transplant rice seedling in single - cropping rice region
單季稻區白背飛虱遷入成蟲對栽期的選擇性研究 -
The text introduced concretely at present home the most advanced technology in floating system including the preparing of nurturing lymph, the selection and facture of seedling bed, the formulation substrate and dedicated fertilizer, seeding, the fertilizing and administration in lymph pool, and so on
摘要具體介紹了目前國內最先進的煙草漂浮育苗技術，包括育苗材料準備、苗床位置選擇及製作、育苗基質及專用肥配製、播種、苗池施肥和苗床管理等。 -
The family comprehensive selection was conducted on the investigated results of progeny test stand of pinus massoniana seedling seed orchard of shanghang baisha forest farm of fujian province with the correlation degree analysis method of grey system theory
摘要應用灰色系統理論中的關聯度分析方法，對福建省上杭白砂林場馬尾松實生種子園子代測定林分的調查結果進行家系綜合評選。
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