Báo cáo lâm nghiệp: "Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts" pptx

... RepublicABSTRACT: The effect of ethephon (80, 100 and 120 mg·l–1) and gibberellic acid (GA3) (40, 300 and 1,000 mg·l–1) on the germination capacity (GC) and mean germination time (MGT) of European beech ... of the present paper was to deter-mine the eﬀect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulation of beechnut germination. MATERIALS AND METHODSSeedsree beechnut ... detected after the application of ethephon or GA3 to dormant seeds. Conversely, both ethephon and GA3 treatments reduced (ethephon significantly) GC when applied to beechnuts chilled for four...

Báo cáo lâm nghiệp: "Rodent-caused damage to forest trees from the viewpoint of forestry practice" potx

... concerning the signiﬁcance of the individual species is in contradic-tion with the information the foresters provided on the distribution of damage which is the greatest on grass-covered clearings ... damage they cause. At the beginning of the research, we conducted a survey among foresters in the form of a questionnaire with the aim to ﬁnd out how they perceive the signiﬁcance of rodent-caused ... eﬀective way of protection while the other half thought that the protection of plantations was possible. e foresters also expressed their opinions concerning the eﬀectiveness of eight suggested...

Báo cáo lâm nghiệp: "Effect of simulated acid rain on mycorrhizae of Aleppo pine (Pinus halepensis Miller) in calcareous soil" potx

... of the influence of acid rain on mycorrhizae of P halepensis. The study reported here concerns the ef-fect of acid deposition as simulated acid rain on the formation ... the end of the experiment all plants wereharvested and the percentage of mycorrhizationdetermined. Due to the short duration of the ex-periment in comparison with the ... mobilization of nutrientsin the soil by the acid treatment, or even to the extra amount of N added in this treat-ment. On the contrary, in acid soils the de-creased...

Báo cáo lâm nghiệp: "Effect of stand segmentation on growth and development of Norway spruce stands" pps

... skidding track, the only one of all of them, is situated perpendicularly to the direction of prevailing winds, in contradiction to plot 3 where the skidding track follows the direction of prevailing ... 323–329confirmed under conditions of this investigated locality.CONCLUSIONBased on the analysis of a part of results from the international IUFRO trial CZ 14 Machov investigat-ing the eﬀect of ... (present) width of tracks was determined by means of surveyed positions of trees (and their rows) and reconstructed axis (centre) of the track in plot 3. e only exception was plot 4, where the track...

Báo cáo lâm nghiệp: "Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak" potx

... average, the increment index of spruce increases the most, almost by 0.13%. It is only a half of this value for oak and beech. Precipitation from the sec-ond half of the vegetation period of the ... precipitation of the actual year is most signiﬁcant for 100% of trees and for almost 80% of trees in this stand, and only for 10% or 5% of trees the precipitation in September and October of the ... increment index of spruce almost by 0.13%. This index in oak and beech increases only by a half value of the value for spruce. Precipitation from the second half of the vegetation period of the previous...

Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx

... 1995).They also confirm an assumption that in the process of adaptation to adverse environmental conditions at higher altitudes spruce populations gain their resistance to the account of growth ... to the develop-ment of seedlings of standard and large dimensions.MATERIAL AND METHODSSeeds used for the cultivation of planting mate-rial originated from the spruce forest vegetation zone ... model plantation in the Krkonoše Mts. agree with the ﬁnding that the slow growth of a part of the population of spruce seedlings is the most marked in the ﬁrst years after sowing and later it...

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

... temperature and rainfall during the five years of study withPearson correlation based on a significance level of 5% with the t test. The effect of age of the plantation on monthly mean annual number of ... Gerais,Brazil where they were counted and identified by comparing them toindividuals of the Museum of Entomology of the UFV and of othercentres of insect identification in Brazil.Frequency ... plantation has about 40% of the land covered by nativevegetation. The higher number of collections of individuals of majorimportant pest species during periods of cooler temperatures and lower...

Báo cáo lâm nghiệp: "Effect of defoliation by Thaumetopoea pityocampa (Den. & Schiff.) (Lepidoptera: Thaumetopoeidae) on annual diameter increment of Pinus brutia Ten. in Turkey" ppt

... diameterincrements in the pine trees are considerably affected by the defoliation of the larvae, P < 0.05. The results of Tukey’s mean separation test for the diameterincrement of the both control and defoliated ... of the pine tree measured at the end of the vegetation period of each year and D1 is the diameter of the tree meas-ured at the beginning of vegetation period of each year.PDADI = (ADIc–ADIi)/ADIc ... Problems on the control of the pine processionarymoth, Proceeding of the symposium Protection of Forests, HellenicFor. Soc., Athens, 1986, pp. 85–88.[24] Markalas S., Influence of the attack...

Báo cáo lâm nghiệp: "Effect of shelter tubes on establishment and growth of Juniperus thurifera L. (Cupressaceae) seedlings in Mediterranean semi-arid environment" pot

... between the T and the WT at the end of the trial (Oct. 2002), that was greater in the WT. From the beginning of the plantation, the N showedsignificant differences between the T and the WT. ... extremeecological conditions, which, together with the advanced meth-ods that are being obtained for its reproduction in the nursery,widens the scene for the conservation, management and resto-ration of the ... confidencelevel of 95%. In the case of violation of the Levene test of varianceequality, the non parametric test of Kruskal-Wallis was used [28].Depending on the analysis made, the measurement comparison...

Báo cáo lâm nghiệp: "Effect of contrasting water supply on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga" pot

... dynamicsshowed the transformation of secondary stand with domination of aspens into the stand with dominant spruce and significantadmixture of alder in wet part of the experimental plot.3.5. Comparison of ... certain different proportions and with admixture of some other deciduous species are typical in the region of the southern European taiga. The area of the southern European taiga is characterised ... the period of 1999–2002. These results indicate the transformation processes of secondary aspen-spruce stands of the Southern European Taiga into a mixed spruce-aspen-birch stands. The most intensive...

Xem thêm

Từ khóa: báo cáo lâm nghiệp cách làm báo cáo tốt nghiệp hướng dẫn làm báo cáo tốt nghiệp khoa kế toán cách làm bìa báo cáo tốt nghiệp cách làm slide báo cáo tốt nghiệp cách làm báo cáo tốt nghiệp chuyên ngành kế toán Báo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018 Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit ĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN Quản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninh Phát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ long Nghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chế Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Thơ nôm tứ tuyệt trào phúng hồ xuân hương Thiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khí Sở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIX Tổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀM TÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ