scholarly journals Methods to inventory and strip thin in dense stands of aspen root suckers

2015 ◽  
Vol 8 (5) ◽  
pp. 590-595
Author(s):  
WL Headlee ◽  
RB Hall
Keyword(s):  
Root Suckers

scholarly journals Research on the Sea-Buckthorn (Hippophae rhamnoides L.) Eco-Restoration Value in Avoiding Erosion and Supporting Soil Fixation

2016 ◽  
Vol 73 (2) ◽  
pp. 343
Author(s):  
Carmen Georgeta Dumitrescu (Manole)
Keyword(s):  
Root System ◽  
Sea Buckthorn ◽  
Hippophae Rhamnoides ◽  
Plant Roots ◽  
Hippophaë Rhamnoides ◽  
Supporting Soil ◽  
Real Importance ◽  
Hippophae Rhamnoïdes L ◽  
Root Suckers

This paper approaches an issue of real importance, namely the sea-buckthorn influence on the areas attacked by erosion. We consider that this effect is mainly a result of its extremely developed root system, as well as of the nodosities formation on the roots. The study was conducted over a period of 3 years (2011-2013) in two landslides areas from Prahova and Dambovita counties, from where were collected 5 plants (from each area) in 3 repetitions. Calculating the averages regarding the plant roots depth, but also the number of root suckers and nodosities, can be easily deduced the role of these plants in soil fixation, hence their eco-restoration value.

Depth of ploughing in relation to depth of suckering and soil type in the control of root suckers of brigalow (Acacia harpophylla)

1967 ◽  
Vol 7 (29) ◽  
pp. 523
Author(s):  
JE Coaldrake
Keyword(s):  
Soil Type ◽  
High Salinity ◽  
Soil Surface ◽  
Low Ph ◽  
Reducing Costs ◽  
Root Suckers

Measurement of 2400 clumps of root suckers of Brigalow (Acacia harpophylla F. vM.) showed that in over 90 per cent of clumps the depth from the soil surface to the centre of the parent root was less than 4 inches. Suckering was significantly shallower on non-gilgai than on gilgai soils. An experiment on gilgai soil compared the effectiveness of ploughing to depths of 4 inches and 8 inches for the elimination of suckers. After four ploughings in two pears both treatments gave an identical kill of 80 per cent. A final overall ploughing at 4 inches increased the kill to 91 per cent. Apart from reducing costs, shallow ploughing should also reduce other deleterious effects associated with the high salinity and low pH that are common in many subsoils of the brigalow region.

Emergence and survival of Populus tremula seedlings under varying moisture conditions

2003 ◽  
Vol 33 (11) ◽  
pp. 2081-2088 ◽  
Author(s):  
Tarja Latva-Karjanmaa ◽  
Leena Suvanto ◽  
Kari Leinonen ◽  
Hannu Rita
Keyword(s):  
Seedling Emergence ◽  
Populus Tremula ◽  
Sowing Time ◽  
Large Numbers ◽  
Seedling Emergence And Survival ◽  
Negative Effect ◽  
Sowing Experiment ◽  
Moisture Conditions ◽  
Root Suckers ◽  
Survival Of Seedlings

Aspen produces large numbers of seeds, even though it mainly reproduces asexually with root suckers. The aim of this study was to find out how different moisture conditions affect emergence and survival of Populus tremula L. seedlings. This was studied with a sowing experiment (totally randomized factorial design). There were altogether 10 blocks, each containing 16 microsites and three treatments (sowing time, watering, sowing shelter) replicated twice in each block. Seedlings emerged on 56% of microsites. Sowing time affected seedling emergence. Both the proportion of microsites with seedlings and the number of seedlings per microsite were lower after first than after second sowing, when the weather was rainier. Watering increased the number of seedlings per microsite, but the proportion of micro sites with at least one seedling was not affected. Sowing shelter had a negative effect on the seedling emergence, especially after second sowing. The survival of seedlings was low (10%) and strongly dependent on watering. The effect of block and its interactions with treatments indicated that seedling emergence and survival depended also on seedbed conditions. We conclude that sexual reproduction of aspen may occur in nature, but it is rare. The seeds also maintained their germinability longer than earlier observed.

scholarly journals Comparison of Rootability of Stem Cuttings from Seedlings of Aesculus sp. and Mature Aesculus × arnoldiana ‘Autumn Splendor’

1988 ◽  
Vol 6 (2) ◽  
pp. 69-71
Author(s):  
B.A. Bergmann ◽  
W.P. Hackett ◽  
H. Pellett
Keyword(s):  
Butyric Acid ◽  
Developmental Stages ◽  
Stem Cuttings ◽  
Mature Tree ◽  
Mature Trees ◽  
Old Growth ◽  
Rooting Of Cuttings ◽  
Root Suckers ◽  
Stem Segments

Rootability was evaluated for stem cuttings taken at varying positions and developmental stages from seedlings of Aesculus and from the mature trees of Aesculus × arnoldiana ‘Autumn Splendor’. Rooting was 100% for cuttings taken from 2-week-old seedlings and 0% for those obtained from the crown of the mature tree 2 months after commencement of spring growth flush. Intermediate rootability was found for cuttings taken from 1-month-old seedlings and from the 2 week-old growth of suckers at the base of the mature tree. Rooting of cuttings with intermediate rooting potential was increased by a quick dip treatment with 2500 ppm indole-3-butyric acid (IBA) or by using apical rather than basal stem segments. Commercially acceptable rooting was not achieved using cuttings from root suckers or the crown of Aesculus ‘Augumn Splendor’.

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