advance coefficient
1.So,the dividend proportion paid by the principal should advance by the increasing of stock exchange risk,the risk aversion coefficient and the opportunity cost of fund manager;
2.In terms of the sensitivity ratio of LPG higher than that of FBG, it is studied a kind of method that can advance the temperature sensitivity ratio of LPG That is used high thermal thermo-optic coefficient, achived a very high sensitivity 19.2nm/°C in a short temperature range, enhanced more than 10 times than other means.
3.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.
4.During the period of 1979—1981,dry seeds of three soybean varieties wereirradiated by~(60)C_0-γ ray with dosage of 16 KR. Varieties irradiated were Feng-shou 10,Dongnong 74—403 and Heinong 26,and nonirradiated seeds of the cor-responding variety was used as control. The following genetic parameters of thenine agronomic characters were estimated:genotypic coefficient of variation,genotypic variance,broad sence heritability and genetic advance expected throughselection.
