Báo cáo lâm nghiệp: "Effect of plant age, temperature and rainfall on Lepidoptera insect pests collected with light traps in a Eucalyptus grandis plantation in Brazil" docx

... of Lepidoptera major and lesser important pests species with tempera- ture (°C) and rainfall (mm) in a Eucalyptus grandis plantation in the Municipality of Nova Era, State of Minas Gerais, Brazil from August 1991 ... for Stenal- cidia grosica (A) , Glena unipennaria (B) and Sabulodes caberata (C) in a Eucalyptus grandis plantation in the Municipalit...

Ngày tải lên: 08/08/2014, 00:21

... years 1995 and 1998, the population of PPM remained at a certain level. In addition, it was observed that in the years at which infestation decreased, the population of Calosoma sycophanta and ... MATERIALS AND METHODS 2.1. Selection of material and study area The study area of both control and defoliated trees was around Ferhus village (with plantation forest), wit...

Ngày tải lên: 08/08/2014, 00:21

... stomata con- ductance, transpiration and dark respiration were measured with a LICOR 6200 of six plants each (treated and untreated) in two replicate series beginning at 0900 ... green- house and special container capacity as well as for organizing technical help. I thank Dr Lacointe (INRA Clermont-Ferrand) for supplying walnut seeds with spe...

Ngày tải lên: 08/08/2014, 18:21

... values (mean and standard deviation) of stand volume (open triangles) and volume of mean stem (grey circles) of spruce stands in Machov experiment at the age of 41 years (2007). Comparison ... position within this variant. Comparison between variants In the framework of this study, stand volume (m 3 /ha) and volume of mean stem (m 3 ) were deter- mined in particular...

Ngày tải lên: 07/08/2014, 03:22

... terminated after ca five months when germination ceased. Germination capacity (GC) and MGT were calculated as the mean of eight rep- lications plus or minus the standard error. Mean germination ... previous soaking) into a moist peat-sand substrate (28–30% mc) and incubated in a closed plastic boxes at 4±1°C (hereafter “4°C”) in the dark (see germination determination). In t...

Ngày tải lên: 07/08/2014, 10:21

... the intensity of the dependence of annual increment indexes on monthly precipitation totals and average monthly temperatures according to all months (January to August) of the actual calendar ... correlation was different according to stands. e lowest one was in stand No. 8, where only about 5% and 25% of trees had a statistically signifi- cant positive correlation of...

Ngày tải lên: 07/08/2014, 10:21

... is caused genetically and balanced by higher resistance to adverse mountain conditions and what seedlings are really to be considered as culls. CONCLUSIONS e monitoring of plantations on mountain ... technolo- gies, in this case the adequate size of plants to be put into containers (D et al. 1987). A comparison of the growth of containerized and bare-rooted plants...

Ngày tải lên: 07/08/2014, 10:21

... protected against rainfall and solar radiation. The existent radiation, outside and inside the shelter, was studied by means of 2 dataloggers of the same brand, “RH/Temp/2x External” type, con- nected ... neces- sary in order to achieve similar characteristics to those obtained for P. halepensis and O. europaea in only a year. This places J. thurifera in a position of...

Ngày tải lên: 08/08/2014, 00:22

... Stand seasonal growth pattern in 2000 Seasonal increment of basal area in spruce represented over 80% of the entire stand basal area increment (as indicated by scaling the data up to the stand ... basal area dynamics showed the transformation of secondary stand with domination of aspens into the stand with dominant spruce and significant admixture of alder in wet part o...

Ngày tải lên: 08/08/2014, 00:22

... a shallow, stony, chalky soil. The planting alternated one row of one-year seedling pines and five rows of vines. The pines were planted 2 m apart along the row, alternating trees with and without ... of 750 mm of annual rain. The Turkish pines (Pinus brutia Ten.) studied were four years old from the germination in 1995 and were 1 year when they were planted on an area...

Ngày tải lên: 08/08/2014, 01:21