ABSTRACTS ON SILVICULTURE


1) THE INFLUENCES ON SAPLINGS OF P. X EURAMERICANA I-214 IN POPLAR NURSERIES USING THE CUTTINGS AND THE CUTTINGS WITH ROOTS

Year/ Number: 1967/2                                       ODC: 232.328.1:232.328.2 Populus
Author(s)
: SEMIZOGLU, M.A.

The experiment was carried out in Izmit Poplar Nursery in 1963 with complete randomised block, 4 replication experiment design. The results were obtained in December 1964. The results showed that the average diameter growth of one-year old rooted cuttings was 1.8 cm higher than rootless cuttings and survival rate of rooted cuttings was 7.5 % than the others.


2) AN INVESTIGATION ON THE PRUNING TECHNIC FOR CLONE OF P. X EURAMERICANA I-214 IN POPLAR NURSERIES

Year/ Number: 1967/2                                      ODC: 232.3:325.9:176.1 Populus
Author(s)
: SEMIZOGLU, M.A.

The experiment was applied in three replications, complete block experimental design in Izmit poplar nursery in 1967. The saplings were pruned in the beginning of June and July at the heights of 100, 150, 200 cm and 2.5 m in August as control. According to the results pruning can be made from the beginning of June up to 2 m from ground level. Pruning has no effect on diameter growth.


3) AN INVESTIGATION ON THE DECISION OF THE FIRST PRUNING HEIGHT FOR TWO PLANTATIONS OF P. X EURAMERICANA I-214 IN FOUR AND FIVE YEARS OLD ESTABLISHED IN SPACING OF 5 m X 5 m

Year/ Number: 1967/2                                   ODC:238.0:176.1 Populus
Author(s)
: SEMIZOGLU, M.A., OZ, C.

The objective of this experiment is the determination of the pruning height on poplar stem in plantations of 4 and 5 years in SEKA (pulp and paper ind.) poplar plantations in the soutnern shore of Izmit bay. Treatments were started in July, 1966. Randomised block with four replications was used. Treatments were :
A- Pruning up to 25 % of total height of tree
B-                35 %                       
C-
               50 %                       
50 % pruning showed best results in 4 years old plantations and 35 % pruning showed best results in 5 years old plantations.


4) TEST ON PLANTING SEASON OF ROOT-CUTTINGS

Year/ Number: 1967/2                                       ODC:232.328.2:176.1 Populus
Author(s):
TARHAN, A.

Test was applied to field in the Autumn of 1966 and in the spring of 1967.
Testing was done in the nursery of the Poplar Research Station in Ankara in accordance with randomised block design.
So it was taken four repetition blocks and four unit plots in each block. In unit plots the planting were done on 15/11/1966, 15/12/1966, 15/2/1967 and 15/3/1967. The saplings of the clone of Populus nigra TR 56/52 at 1 age were used as material.
As it was shown in respect of rooting succes of cuttings there have been no significance between the planting in autumn and in spring. Considering the height increments the statistical analyses and tests have shown that to plant in autumn has more advantage.
It has not seen any significance in rooting of cuttings planted after various of waiting periods. Consequently there is no decay because of waiting.
The results of test :
In the climatic regions where the spring has much rains and pass over into the summer without having any suitable time for field working, it is preferable to plant the root-cuttings in autumn on which left the stem to be cutt- off in cuttings and to plant in spring.

A-
Stems cut immediately after planting
B-
Stems cut on tenth of April
The rooted cuttings were planted in November, December, January, March and April. According to this experiment. November is the best month for the planting of rooted cuttings. The months other than December and April, are also convenient for planting operations in nursery.


5) STUDIES ON THE PLANTING TIME OF ROOTED POPLAR CUTTINGS AT NURSERIES

Year/ Number: 1968/3                                              ODC::232.44:176.1 Populus
Author(s):
SEMIZOGLU, M.A., ATAIZI, M.

The objective of this study was to determine the most suitable time for planting of rooted cuttings in order to obtain 2 year old planting material.
A-    Stems cut immediately after planting
B-     Stems cut on tenth of April
The rooted cuttings were planted in November, December, January, March and April. According to this experiment. November is the best month for the planting of rooted cuttings. The months other than December and April, are also convenient for planting operations in nursery.


6) EARLY PLANTING (AT THE END OF AUTUMN) OF ROOTED CUTTINGS AFTER THEIR LEAVES TORN OFF

Year/ Number  3                                                ODC:232.328.12: 176.1 Populus
Author(s):
SEMIZOGLU, M.A., ATAIZI, M. SIMSEK, Y.

The objective of the experiment : To determine the differences in growth between the nursery stock lifted at the and of vegetation period and planted as the leaves on and after the leves torn off. The experiment was established in Izmit Poplar nursery in Nowember 1968 at the intervals of ten days in three periods. Result : In the region of Marmara there is no problem in planting the rooted cuttings as their leaves on or the leaves torn off from the diameter growth point of view.


7) THE PRUNING OPERATIONS OF THE CLON OF P. X EURAMERICANA I-214 WHEN THEY GROW AT THE NURSERY AND ITS EFFECT ON THE BRANCHING DURING THE EARLY YEARS OF PLANTATION

Year/ Number 1968/ 3                                            ODC:232.325.9: 176.1 Populus
Author(s):
SEMIZOGLU, M.A., SIMSEK, Y., OZ, C.

The objective of this study is to determine the scope and the time of pruning which will serve to keep the trees in a good form and with the least branches as it is possible without decreasing the rate of growth and destroying the health of the plant Experiment was established in Izmit Poplar Nursery in 1967. With 3 replication-complete block desing. Results, pruning of the one year old saplings are not recommended. Up to 50 % of the saplings can be pruned in the second year in nursery


8) STUDIES ON THE EFFECT OF LIFTINGS AND PLANTING SEASON ON THE RATE OF SURVIVAL AND ON THE FIRST YEARS GROWTH AT TWO-YEAR OLD PLANTING MATERIAL AT P. X EURAMERICANA "I-214" NURSERIES

Year/ Number 1968/ 3                                                     ODC:232.44: 176.1 Populus
Author(s): SEMIZOGLU, M.A., ATAIZI, M., OZ, SIMSEK, Y.

The objective was to examine the possibilities to move the planting season towards autumn especially November. When the plants have their leaves on and study the effect of storage. The cuttings were planted from 6 Nowember, 1967 to 15 April, 1968 in Izmit in different seven times. Experiment design is 4 replicated complete block. Observations showed that the most suitable planting seasons were late autumn and early spring. The material, when was planted in 21 Nowember showed the best growth. Planting immediately after lifting or 15 day-storage before planting showed no significant differences.


9) A PRELIMINARY RESEARCH PROJECT ON THE ORGANISATION OF IRRIGATION OF NURSERY EXPERIMENTS

Year/ Number 1968/ 3                                                     ODC:232.325.1: 176.1 Populus
Author(s): SEMIZOGLU, M.A., TARHAN, A., ATAIZI, M., ZENGINGONUL, K.A., SIMSEK, Y.

The objective of the experiment is to determine the main difficulties encountered and the measures could be taken in organising the irrigation experiments, and to determine the most useful dosage of irrigation and its frequency from the diameter and height growth point of view. The experiment was designed in the Nursery of Ankara Poplar Research station with the clone of P. nigra "56/52" 10 different irrigation treatments were used in a three replicated-complete block experimental design. Result : The most suitable irrigation treatment was 1500 kg/m2/Per week and this was followed by 1000 kg/m2/Per week, 1500 kg/m2/once in a forthnight.


10) STUDES ON THE TEARING OFF THE LEAVES OF EARLY LIFTED 2 YEAR OLD P. X EURAMERICANA "I-214" PLANTING MATERIAL

Year/ Number 1968/ 3                                                     ODC:232.411.5:176.1 Populus
Author(s):. SEMIZOGLU, M.A., ATAIZI, M., SIMSEK, Y.

Half of the planting material with leaves on and after half without leaves which were torn off were planted in three different times in November, 1967 in Izmit with randomised complete block design. Material of P.x euramericana clone could be lifted in the nursery and taken to the plantation site after vegetation period ended. No significant differences between the planting material planted with leaves on and without leaves.

 ABSTRACTS