path coefficient analysis 中文意思是什麼

path coefficient analysis 解釋
通徑系數分析
  • path : path（ol ）＝pathological; pathology n （pl paths ）1 （自然踏成的）路；路徑；（馬路邊上的）人行...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  • analysis : n. （pl. -ses ）1. 分解，分析；【數學】解析。2. 梗概，要略。3. 〈美國〉用精神分析法治療（＝ psychoanalysis）。
  1. 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
  2. The result of path coefficient analysis is that the factor affect net photosynthetic rate of h. ammodendron mostly is soil salt contents

    通徑分析結果表明，對退化梭梭凈光合速率影響最大的生境因子是土壤含鹽量。
  3. Lesson engineering measure for research mainly from the sloping fields flow recycling potential analysis with gathering the water technique the both side collecting the region ' s rain - storm flood the data, year declining the water year the flow the data and water and soil conservation data, analysis combine intoing the small river valley flood the path comparing coefficient, water and soil conservation not flow coefficient, revising the new concept of deep etc. flow of year path, establishing synthesizing solving the sloping fields flow recycling the potential computing the model, bring upping gathering the water technique is with the

    課題研究主要從坡地徑流資源化潛力分析和集水技術兩方面入手，以典型區域為代表，收集了該地區暴雨洪水資料、年降水年徑流資料及水土保持資料，分析並引入了小流域洪徑比系數、水土保持不產流系數、修正年徑流深等新概念，建立了綜合解決坡地徑流資源化潛力計算模型，提出了集水技術的工程措施和方法。
  4. The application of path coefficient analysis in irradiation selection of single plant of rice

    通徑分析在水稻輻射育種單株選擇中的應用
  5. Based on this analysis, the author has the new balanced growth path equation including the variable of rate of population aging. using the new balanced growth path equation, the author proves that acre are both positive and negative effects of population aging on economic growth ; meanwhile the author proves that there is a state in which the effect of population aging on economic growth is zero, regard as critical condition. then the author analyzes the effects of changing the rate of population aging on balanced growth path, output, and labor ' s consumption, and gets the different formulas of standard coefficient of retirements income

    在此基礎上推導出包含老齡化因素變量在內的新經濟平衡增長路徑方程；利用新經濟平衡增長路徑方程，證明了老齡化對經濟增長在理論上存在著正負兩方面的作用效應；同時證明了在理論上存在著老齡化因素對經濟增長零作用效應的臨界狀態；分析了老齡化率變動對經濟平衡增長路徑、產出和勞動力消費的影響效應；並給山了養老標準系數的不同臨界點的計算公式。
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