Judul: Peran Hutan Kota Dalam Perbaikan Iklim Mikro di Kota Malang Jawa Timur
Abstrak: Physical development for urban infrastructure gives an impact of reducing the green open area. This situation led to an increasing of air temperature, makes the urban environment is getting warmer. One of the solution to lower the air temperature is developing an area of open green spaces, specifically urban forest. Urban forest is an approaching and the implementation of one or more functions in a group of forest vegetation at urban areas that have specific purpose such as protection, recreation, aesthetics, and other utility functions for the benefit of urban communities. The comfort index of some urban forest and city park in the city of Malang is currently at a comfortable level (IK value = 21-24), then the management of urban forest need to be more intensive and effective such as to select tree species that are capable and have a big impact on air quality for create a microclimate and makes the area to become more comfortable.
Keyword: urban forest., micro-climate, comfort index

Judul: Evaluasi Hutan Kota Berdasarkan Fungsi Ameliorasi Iklim Mikro di Kota Semarang
Abstrak: City developments have an impact on increasing the conversion of green open spaces (GOS) to builded spaces. The reduction of GOS areas cause the increase of the air temperature in the atmosphere. One way to overcome that problems by urban forest development for micro climate improvement. The function of the urban forest will be felt if the selection of tree species fits with micro climate amelioration function. The objectives of this research were to (1) study the characteristic of urban forest which is effective for the micro climate amelioration, (2) evaluate the suitability of tree physical characters for the micro climate amelioration, and (3) determine the potention of shade trees for the micro climate amelioration. The result shows that urban forest which is effective for the micro climate amelioration have an canopy areas as much as 19927 m2 with 720 of trees. The trees at Tinjomoyo Recreational Forest, Krobokan Urban Forest, and Menteri Supeno Park have the suitability value at the range of 61–80%, while Beringin Park have the suitability value at the range of 41–60%. The value of Key Performance Indicator (KPI) shows that the very potention trees for micro climate amelioration were Albizia saman, Delonix regia, Ficus benjamina, Pterocarpus indicus, Swietenia mahagoni, and Terminalia catappa.
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Judul: Estimation of Additive and Non-Additive Genetic Variances of Body Weight, Egg Weight and Egg Production for Quails (Coturnix coturnix japonica) with an Animal Model Analysis
Abstrak: This study estimates the additive and non-additive variances for egg production and body weight traits of two lines of quails from a long-term selection with the help of the REML method. For the body weight of 42-day-old females (BW42f) and males (BW42m), a total of 7,934 records for line 1 and 7,214 records for line 2 from 21 generations were used in our analyses. Additionally, 1,717 records of females from line 1 and 1,671 records of females from line 2 contained information on their egg production at an age of 42 to 200 days (EN200), on the average egg weight for the first 11 weeks of their laying season (EW1), on the average egg weight from weeks 12 to 23 (EW2), and on their body weight at an age of 200 days (BW200f). A multivariate additive animal model and one-trait dominance models, which include the inbreeding coefficients as covariates, were fitted to the data. The estimates of the heritability gained from our dominance models were smaller than those from the additive model. For line 1, the heritability values decreased for EN200 from 0.35 to 0.32, for EW1 from 0.66 to 0.56, for BW200f from 0.42 to 0.38, and for BW200m from 0.51 to 0.49, respectively. For the first line, the respective ratio (d2) of the dominance variance to the phenotypic variance for EN200, EW1, BW200f and BW200m was 0.08, 0.22, 0.09 and 0.21, and the values for the second line were 0.12, 0.06, 0.001 and 0.23.
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