scholarly journals Comparison of growth parameters of 40 varieties/clones short rotation coppice willow (Salix)

2011 ◽  
pp. 99-104
Author(s):  
Attila Bako ◽  
Diana Tóthová
Keyword(s):  
Survival Rate ◽  
Growth Parameters ◽  
Growing Season ◽  
Research Field ◽  
Stem Diameter ◽  
First Year ◽  
Average Height ◽  
Stem Height ◽  
Short Rotation ◽  
One Year

The plantation of willow varieties was established in 2009. The 40 different varieties and clones of Salix were planted at a research field in Kolíňany (Nitra district). The paper evaluates results from the first growing season in 2009. The survival rate of planted cuttings ranged from 55.56 % to 100.00 % after the first year. The lowest survival rate was reached by Terra Nova variety. The stem numbers per plant ranged from 1.17 ±0.37 to 2.53 ±0.98. The average height of one-year old stem varied from 65.82 ±36.60 cm to 225.58 ±68.61 cm. The average stem diameter ranged from 6.90 ±2.63 mm to 14.34 ±3.39 mm. There were statistically very significant differences in parameters of stem height stem diameter and stem numbers per plant among studied varieties/clones. The statistic method used was analysis of variance ANOVA. The varieties were then divided into 6 groups according to their similarity in observed parameters after the first growing season by cluster analysis. The best results were reached by varieties/clones classified in the second group. The survival rate, stem diameter and stem height values of these varieties/clones were above average. 

Headstarting in European pond turtles (Emys orbicularis): Does it work?

2005 ◽  
Vol 26 (3) ◽  
pp. 333-341 ◽  
Author(s):  
Sławomir Mitrus
Keyword(s):  
Survival Rate ◽  
Small Samples ◽  
First Year ◽  
Artificial Rearing ◽  
Original Population ◽  
Emys Orbicularis ◽  
Emydoidea Blandingii ◽  
In The Wild ◽  
Population Survival ◽  
One Year

AbstractThe European pond turtle (Emys orbicularis) is an endangered species in Poland. From 1998 to 2000, as part of an active protection program for the species in central Poland, 123 one-year-old headstarted individuals were released into their original population. Survival rate in artificial rearing was 0.85. Annual recapture rate of the released turtles during the first year in the wild was 0.24, and during next year 0.43 or higher. For comparable groups of one-year-old turtles the annual recapture rates of wild vs. headstarted were not statistically different, but they were based on small samples. Analysis of the data based on a life table for Emydoidea blandingii and data on survival rate of E. orbicularis to age one suggests that headstarting programs can increase population size only if a large percentage of hatchlings is taken to artificial rearing. However, as we know nothing about behaviour and survivorship of older headstarted turtles, such programs still should be considered as experiments.

scholarly journals Budset and Growth of Eastern White Pine Following Application of 6-Benzylaminopurine to Seedlings Fertilized with Different Levels of Nitrogen

1988 ◽  
Vol 6 (2) ◽  
pp. 42-45
Author(s):  
L. Eric Hinesley ◽  
Robert D. Wright
Keyword(s):  
Irrigation Water ◽  
Pinus Strobus ◽  
Dry Weight ◽  
Growing Season ◽  
First Year ◽  
White Pine ◽  
Eastern White Pine ◽  
Growing Seasons ◽  
One Year ◽  
Different Levels

Eastern white pine (Pinus strobus L.) were potted and solution fed once weekly during 2 growing seasons with 5 levels of N in the irrigation water: 50, 100, 200, 300 and 400 ppm. Leaders were treated with 750 ppm 6-benzylaminopurine (BA) in late June of the first year. The higher N levels resulted in greater stem diameter, greater foliage dry weight, longer and heavier needle fascicles, better foliage color, greater budset after application of BA, and more and longer branches on the BA-treated leader the second growing season. BA should be applied to trees with N concentration ≥ 1.5% in one-year-old foliage.

scholarly journals Outcome of Rhabdomyosarcoma in First Year of Life: Children’s Cancer Hospital 57357 Egypt

Sarcoma ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Enas El Nadi ◽  
Emad A. H. Moussa ◽  
Wael Zekri ◽  
Hala Taha ◽  
Alaa Yones ◽  
...  
Keyword(s):  
Overall Survival ◽  
Survival Rate ◽  
Multimodality Treatment ◽  
Treatment Modalities ◽  
First Year ◽  
Female Ratio ◽  
Free Survival ◽  
Cancer Hospital ◽  
One Year ◽  
First Year Of Life

Background. Rhabdomyosarcoma (RMS) is the most common soft-tissue sarcoma in children. Fifty percent of RMS cases occur in the first 10 years of life and less commonly in infants younger than one-year old. These infants require adapted multimodality treatment approaches.Patients and Methods. We analyzed patients’ characteristics, treatment modalities, and the outcome for RMS infants treated at Children’s Cancer Hospital Egypt (CCHE) between July 2007 and December 2010 and compared them to patients above one year treated on the same protocol.Results. Out of the 126 RMS treated during this period, 18 were below the age of one year. The male: female ratio was 1.25 : 1. The median age at diagnosis was 0.7 ± 0.2 years. Most of the cases (27.8%) were presented in head and neck regions. The estimated 4-years failure-free survival and overall survival for infants were 49 ± 12% and 70 ± 12%, respectively. These failure-free survival rate and overall survival rate did not differ from those for older patients (P=0.2).Conclusion. Infants with RMS are a unique group of RMS who needs special concerns in tailoring treatment in addition to concerns regarding toxicity and morbidity in infants.Corrigendum to “Outcome of Rhabdomyosarcoma in First Year of Life: Children’s Cancer Hospital 57357 Egypt”

scholarly journals Using Foliar Application of Fe and GA3 to Improve Growth of Two Olive cv. (Olea europaea ) Transplants.

2018 ◽  
Vol 6 (3) ◽  
pp. 89-93
Author(s):  
Sarfaraz F. Al-Bamarny ◽  
Amira S. Abdulrhman
Keyword(s):  
Root Length ◽  
Foliar Application ◽  
Branch Length ◽  
Growing Season ◽  
Stem Diameter ◽  
Stem Length ◽  
Kurdistan Region ◽  
Fe Content ◽  
Olive Cultivars ◽  
One Year

This investigation was carried out in the lath house of the nursery of Malta station/ Duhok. Kurdistan region, Iraq. During the growing season of 2017, to study the effect of the different concentrations of  Fe (0, 10 and 20 mg.L -1) and GA3 (0 , 500 and 1000 mg.L-1) on vegetative growth,  roots length  and leaves nutrients content of one year old of  two olive cultivars (Nebali and Bashike) transplantings. The results appear that  Nebali cultivar significantly dominated in stem length (cm), stem diameter(mm),  branch length(cm), leaves number, root length(cm), N(%), K(%), P(%) and Fe(mg.L-1), Baeshike cultivar dominate in leaf area (cm2), stem length(cm) , shoot root ratio(%), root length(cm) and K (%) were significantly increased with the increase the GA3 to 1000 mg.L-1. Foliar application of GA3 at 500 mg.L-1 significantly increased branch length (cm) and P (%). The transplants sprayed with the Fe in 10 mg.L-1 only significantly effect on the Fe % content but spray transplants with the Fe at 20 mg.L-1 had significantly affected on stem diameter(mm), leave number root length(cm) and N(%). Most of the interactions (cultivar × Fe and cultivar × GA3) showed significant effects on the most studied characteristics.

scholarly journals Pola Pertumbuhan Siput Gonggong Strombus turturella, Röding, 1798 (Gastropoda: Strombidae) di Pulau Bangka, Bangka Belitung

2019 ◽  
Vol 22 (2) ◽  
pp. 118
Author(s):  
Okto Supratman ◽  
Indah Auliana ◽  
Mualimah Hudatwi ◽  
Eva Utami
Keyword(s):  
Growth Model ◽  
Growth Pattern ◽  
Growth Parameters ◽  
Growth Patterns ◽  
Anthropogenic Activity ◽  
First Year ◽  
Von Bertalanffy ◽  
Allometric Growth ◽  
A Value ◽  
One Year

Strombus turturella on Bangka Island is under pressure and threatens the effects of anthropogenic activity. This condition is necessary to carry out various efforts to manage the dog conch on an ongoing basis. Based on these problems, it is necessary to conduct research related to various parameters of the growth of the dog conch on Bangka Island. The purpose of the study was to determine the growth parameters of the dog conch which included growth patterns, estimation of growth model von bertalanffy and length-weight relationship. The research was carried out in several stages, namely: 1) Sampling in the field conducted in Teluk Kelabat waters, Ketawai Island and Anak Air Island, 2) Measurement of shell length and weight, and 3) Analysis of growth parameters using the FiSAT II application, then estimated von Bertalanffy's growth. The results of the frequency distribution of the size of the gonggong snail class in Teluk Kelabat were 47.85- 66.35 mm, on Ketawai Island 44.10-77.45 mm, while those on Anak Air Island were 44.10-62.65 mm. The results of Von Bertalanffy's growth model in the first year or age of one year growth accelerated with the length of the shell in Teluk Kelabat (44.46 mm), Ketawai Island (46.63 mm) and Pulau Anak Air (32, 80 mm). Then in the following year the growth slowed down to asymptotic length with around 11 years of age in T. Kelabat, 14 years in P. Ketawai and 15 years in P. Anak Air. The relationship between the length and weight of the dog conch in three locations on Bangka Island with a value of b <3 so that a negative allometric growth pattern can be determined. The negative allometric growth pattern shows an increase in the length of the snail bark faster than the weight gain. Siput gonggong (Strombus turturella) di Pulau Bangka mengalami tekanan dan ancaman dampak dari aktivitas antropogenik. Kondisi ini maka perlu dilakukan berbagai upaya pengelolaan siput gonggong secara berkelanjutan. Berdasarkan permasalahan tersebut maka perlu dilakukan penelitian berkaitan berbagai parameter pertumbuhan siput siput gonggong di Pulau Bangka.  Tujuan penelitian yaitu menentukan beberapa parameter pertumbuhan siput gonggong yang meliputi distribusi kelas ukuran, pendugaan model pertumbuhan von bertalanffy dan hubungan panjang berat. Penelitian dilakukan beberapa tahapan yaitu 1) Pengambilan sampel di lapangan yang dilakukan di Perairan Teluk Kelabat, Pulau Ketawai dan Pulau Anak Air, 2) Pengukuran panjang cangkang dan berat, dan 3) Analisis parameter pertumbuhan dengan menggunakan aplikasi FiSAT II, selanjutnya dihitung pendugaan pertumbuhan von Bertalanffy. Hasil distribusi frekuensi kelas ukuran siput gonggong di Teluk Kelabat yaitu 47.85 mm s.d 66.35 mm, di Pulau Ketawai 44.10 mm s.d 77.45 mm, sedangkan di Pulau Anak Air yaitu 44.10 mm s.d 62.65 mm. Hasil model pertumbuhan Von Bertalanffy pada tahun pertama atau umur satu tahun pertumbuhan mengalami percepatan dengan panjang cangkang di Teluk Kelabat (44,46 mm), Pulau Ketawai (46,63) dan Pulau Anak Air (32, 80) mm. Kemudian pada tahun selanjutnya pertumbuhan semakin melambat sampai mecapai panjang asimtotik dengan umur sekitar 11 tahun di T. Kelabat, 14 tahun di P. Ketawai dan 15 tahun di P. Anak Air. Hubungan panjang dan berat siput gonggong di tiga lokasi di Pulau Bangka dengan nilai b < 3 sehingga dapat ditentukan pola pertumbuhan alometrik negatif. Pola pertumbuhan alometrik negatif  menunjukan pertambahan panjang siput gonggong lebih cepat dibandingkan dengan pertambahan berat.

Clover and crop production under 13- to 15-year-old Pinus radiata

1979 ◽  
Vol 19 (98) ◽  
pp. 362 ◽  
Author(s):  
GW Anderson ◽  
FE Batini
Keyword(s):  
Pinus Radiata ◽  
Crop Production ◽  
Subterranean Clover ◽  
Growing Season ◽  
Tree Density ◽  
First Year ◽  
Adjacent Area ◽  
The Third ◽  
One Year ◽  
Seed Yields

A thirteen-year-old Pinus radiata plantation was thinned to 143 or 261 stems ha-1 and pruned to 6 m at Mundaring, Western Australia. The production of the Daliak, Seaton Park and Woogenellup cultivars of subterranean clover sown under the trees and on an adjacent area under pasture only was measured for two years. The yields of oats and lupins sown for two successive years following one year of clover pasture were also measured. No seedling establishment problems were encountered and healthy, productive pastures resulted. In the first year, Daliak was inferior to the other cultivars for both herbage and seed production. Seed yields were highest under the low tree density. By the third growing season herbage yields had fallen under the trees to 84% of the control pastures (4800 kg ha-1) at 143 stems ha-1 and 68% at 261 stems ha-1. The yields of oats were usually higher on the control plots but those of lupins seldom so.

scholarly journals Evaluation of the Behavior of Some Genotypes of Salix sp. in the Conditions of Sandy Soils

2018 ◽  
Vol 75 (1) ◽  
pp. 44
Author(s):  
Marin SOARE ◽  
Paula IANCU ◽  
Elena BONCIU ◽  
Ion NICOLAE ◽  
Luminita BUSE DRAGOMIR ◽  
...  
Keyword(s):  
Survival Rate ◽  
Plant Growth ◽  
Vegetative Growth ◽  
Growth And Development ◽  
Sandy Soils ◽  
Stem Height ◽  
Short Rotation ◽  
Hydric Stress ◽  
Main Factors ◽  
Comparative Analyse

The aim of this study was to make a comparative analyse of nine willow genotypes (seven Romanian and two Swedish clones) in order to test them for short rotation coppice. Researches have been carried out in the sandy soils from Southern Romania, over a period of two years of vegetation. There were made determinations as concern plants growth and development and were referring to survival rate, stem height, number of shoots/plant and stem diameter at the base. Hydric stress is one of the main factors of limiting plant growth on this type of soil and the experimented willow genotypes have reacted differently. The obtained results have shown the fact that the largest vegetative growth was recorded in Pesred and Inger genotypes. It also emphasizes with good results in terms of the quantity of biomass RO 1077, Fragisal and Robisal genotypes. Based on the obtained results it can appreciate that Salix sp. represents a solution of utilize the sandy soils which have low fertile and obtaining considerable amounts of biomass, in the conditions of ensuring of water and nutritive resources.

scholarly journals Hexazinone site preparation improves black spruce seedling survival and growth

1995 ◽  
Vol 71 (4) ◽  
pp. 426-433 ◽  
Author(s):  
Michael J. Roden ◽  
Phillip E. Reynolds
Keyword(s):  
Growth Parameters ◽  
Black Spruce ◽  
Seedling Survival ◽  
Site Preparation ◽  
Rubus Idaeus ◽  
Stem Diameter ◽  
Growing Seasons ◽  
Survival And Growth ◽  
One Year ◽  
Observation Period

Granular (PRONONE 10G and 5G) and liquid (VELPAR L) hexazinone (1 to 4 kg ai ha−1) were applied to a northern New Brunswick clearcut (loams, silt loams, and clay loams) to reduce raspberry [Rubus idaeus L. var. strigosus (Michx.) Maxim] competition. Treatment, using skidder-mounted herbicide application equipment, was completed in May and September 1986, with planting of 2+2, bareroot, black spruce seedlings [Picea mariana (Mill.) B.S.P.] in June 1986 and in June 1987. Seedling survival and growth were measured yearly for five growing seasons after planting. By August 1991, raspberry cover for three treatments remained less than that for controls. Survival of seedlings planted approximately one month after spring treatment was less than controls, but seedling height and stem diameter were greater than that of control seedlings for most treatments. Survival and growth of seedlings planted approximately one year after spring treatment or nine months after fall treatment were greater than that of control seedlings for most treatments. Fifth-year height and stem diameter of seedlings planted nine months after fall treatment were negatively correlated with raspberry height (r2 = 0.729, height and 0.745, diameter), decreasing as raspberry height increased. Over the five-year observation period, hexazinone formulation did not affect raspberry control, but did affect seedling survival and growth. Spring treatment with PRONONE 10G (2 kg ai ha−1), with planting delayed by one year, provided the best treatment to achieve both optimal seedling survival and growth during plantation establishment. Key words: liquid hexazinone, granular hexazinone, site preparation, black spruce, growth parameters, seedling survival, raspberry competition

scholarly journals The Effect of Irrigation Intervals Scheduling and Nitrogen and Zinc Content on Wheat Yield and Yield Components in Drought Stress

2016 ◽  
Vol 49 (4) ◽  
pp. 15-26
Author(s):  
N. Parsai ◽  
F. Vazin ◽  
M. Hassanzadeh
Keyword(s):  
Grain Yield ◽  
Wheat Yield ◽  
Zinc Content ◽  
Research Field ◽  
Grain Weight ◽  
Stem Diameter ◽  
Stem Height ◽  
Irrigation Interval ◽  
Biological Yield ◽  
1000 Grain Weight

Abstract In order to evaluate the effect of irrigation interval on yield and quantitative-qualitative characteristics of bread wheat, splited plot experiment in randomized block with four replications in the 2010-11 crop years was conducted in the research field of Islamic Azad University of Gonabad. A number of 7, 9 and 10 days irrigation treatments formed the main factors of test, and spraying and non-spraying of nitrogen and zinc were considered as subfactor of test. The results showed that the effect of irrigation was significant for the number of grains per spike in the level of 5% and on 1000-grain weight and fat percent at the level of 1%, and had no significant effect on grain yield, biological yield, number of spikes/sq m stem height, stem diameter and protein content. Nitrogen treatment was significant at the level of 5% on biological yield and number of spikes/sq m, but had no significant effect on grain yield, number of grains per spike, 1000-grain weight, stem height, fat and protein percent, and stem diameter. Treatment with zinc was statistically significant in probability level of 1% only on percentage of fat and had no significant effect on grain yield, biological yield, grain numbers per spike, weight of 1000 seeds, spikes/sq m, stem height, protein percent and stem diameter. Seven days irrigation with of nitrogen allocated for highest seed yield (265.38 g/m2/sq m) and biological yield (659.33 g/m2/sq m). Means comparison showed the highest 1000-grain weight was obtained from 7 days irrigation (47.10 g) and the lowest from 13 days irrigation (40.44 g). According to the experiment results, 7 days irrigation was recognized as the best irrigation to achieve maximum economic performance and 13 days irrigation were determined as most appropriate irrigation for maximum performance for the region due to lack of water and weather conditions of Gonabad, spraying zinc and nitrogen to improve production was proposed depending on different irrigation and the purpose of production.

scholarly journals Response of Sweet Corn (Zea mays L. Saccharata) Growth on the Treatment of Organic and NPK Fertilizer

2021 ◽  
Vol 21 (1) ◽  
pp. 131
Author(s):  
Ahmad Raksun ◽  
I Wayan Merta ◽  
I Gde Mertha ◽  
Mohammad Liwa Ilhamdi
Keyword(s):  
Sweet Corn ◽  
Positive Response ◽  
Growth Parameters ◽  
Organic Fertilizer ◽  
Stem Diameter ◽  
Growth And Yield ◽  
Optimum Dose ◽  
Fertilizer Treatment ◽  
Stem Height ◽  
Npk Fertilizer

Sweet corn fruit is one of the food favored by the people of Indonesia. The growth and yield of sweet corn can be increased by fertilizing. Research on the response of sweet corn growth to organic and NPK fertilizer was conducted in the Terong Tawah Village, West Lombok Regency. The purpose of this research was to determine: (1) response of the growth of sweet corn to the organic fertilizer treatment, (2) response of the growth of sweet corn to the NPK fertilizer treatment, (3) the effect of the interaction between organic and NPK fertilizer on the growth of sweet corn. The growth parameters of sweet corn are stem height, leaf lenght, number of leaf and stem diameter. Research data were analyzed using analysis of variance. The results showed that: (1) sweet corn growth has a positive response to the organic fertilizer, organic fertilizer can increas stem height, leaf lenght, number of leaf and stem diameter, (2)  sweet corn growth has a positive response to the NPK fertilizer, NPK fertilizer can increase all  growth parameter, (3) the interaction between organic and NPK fertilizer has no significant effect on all growth parameters, (4) the optimum dose of organic fertilizer is 1.5 kg m-2 of agricultural land, (5) The treatment of 6 g NPK fertilizer was better than other treatments.

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