scholarly journals THE IMPROVEMENT, UTILIZATION AND PRODUCTION OF LOW ALTITUDE TUSSOCK COUNTRY IN OTAGO

1966 ◽  
pp. 46-58
Author(s):  
T.E. Ludecke ◽  
B.P.J. Molloy
Keyword(s):  
Research Work ◽  
Research Station ◽  
Low Altitude

IN THIS PAPER it is planned to review research work in Central Otago and the work carried out at Tara Hills High Country Research Station, Omarama, prior to 1966, into the improvement of low altitude tussock country, the utilization of this improved country and the increases in production which can occur. Discussion will mainly be concerned with the improvement of tussock country in areas where the rainfall is greater than 20 in. per annum and where clovers can be introduced by oversowing. Lucerne is the legume suited to areas where the rainfall is less than 20 in.

ROLE OF CONSERVATION AGRICULTURE IN IMPROVING PRODUCTION WATER AND NITROGEN EFFICIENCY OF WHEAT UNDER RAINFED CONDITIONS

2020 ◽  
Vol 51 (4) ◽  
pp. 1139-1148
Author(s):  
Othman & et al.
Keyword(s):  
Crop Rotation ◽  
Nitrogen Use Efficiency ◽  
Agricultural Research ◽  
Research Work ◽  
Conservation Agriculture ◽  
Nitrogen Efficiency ◽  
Research Station ◽  
Wheat Varieties ◽  
Nitrogen Use ◽  
Use Efficiency

The research work was conducted in Izra’a Research station, which affiliated to the General Commission for Scientific Agricultural Research (GCSAR), during the growing seasons (2016 – 2017; 2017 – 2018), in order to evaluate the response of two durum wheat verities (Douma3 and Cham5) and two bread wheat varieties (Douma4 and Cham6) to Conservation Agriculture (CA) as a full package compared with Conventional Tillage system (CT) under rainfed condition using lentils (Variety Edleb3) in the applied crop rotation. The experiment was laid according to split-split RCBD with three replications. The average of biological yield, grain yield,  rainwater use efficiency and nitrogen use efficiency was significantly higher during the first growing season, under conservation agriculture in the presence of crop rotation, in the variety Douma3 (7466 kg. ha-1, and 4162kg. ha-1, 19.006 kg ha-1 mm-1,  39.62 kg N m-2respectively). The two varieties Douma3 and Cham6 are considered more responsive to conservation agriculture system in the southern region of Syria, because they recorded the highest grain yields (2561, 2385 kg ha-1 respectively) compared with the other studied varieties (Cham5 and Douma4) (1951 and 1724 kg ha-1 respectively). They also exhibited the highest values of both rainwater and nitrogen use efficiency.

IMPROVEMENT OF LOW ALTITUDE TUSSOCK COUNTRY IN CENTRAL OTAGO

1960 ◽  
pp. 96-110
Author(s):  
T.E. Ludecke
Keyword(s):  
Research Work ◽  
The West ◽  
Low Altitude

This paper describes the research work undertaken in the last two and a 'half years into the improvement of run country in Central Otago. The district covers 4,500 square miles of the Clutha and Taieri catchments stretching from the Lakes in the west and Miller's FIX and Middlemarch in the east. About twothirds of the area lies above 1,500 ft and is the run or pastoral country.

scholarly journals Land suitability evaluation of bilverdy research station for wheat, barley, alfalfa, maize and safflower

2008 ◽  
Vol 3 (Special Issue No. 1) ◽  
pp. S81-S88 ◽  
Author(s):  
A.A. Jafarzadeh ◽  
P. Alamdari ◽  
M.R. Neyshabouri ◽  
S. Saedi M R N
Keyword(s):  
Research Work ◽  
Land Suitability ◽  
Limiting Factors ◽  
Research Station ◽  
Square Root ◽  
Parametric Methods ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Limitation Method ◽  
Square Root Method

In the present study and research work, land suitability evaluation (qualitative classification) was made for the Bilverdy research station of the Islamic Azad University in East Azarbaijan for wheat, barley, alfalfa, maize and safflower. The Simple Limitation Method (SLM), the Limitation Method regarding Number and Intensity (LMNI) and the Parametric Methods (PM) such as the square-root and the Storie methods were used. The landscape, climate and soil and characteristics that influence suitability of the land for particular crops have been combined according to the adopted methodology. Economic factors were excluded and moderate level of management was assumed. The results of different methods show that the most important limiting factors are climate, pH, organic matter (OM), gravel, salinity and sodicity, taken either alone or in combination. For safflower, the cation exchange capacity (CEC) can be added to these factors. Evaluation by the SLM and LMNI methods result in similar suitability classes, which confirms previous findings by other researchers for the same crops. However, in many cases the use of parametric methods, especially the square-root method, turned to be more realistic in distinguishing separate suitability classes. This study not only compares different methods and their results but also evaluates the suitability of the study area for particular crops. According to the square-root method, the area can be recommended as marginally suitable for cultivation of wheat, barley, alfalfa and safflower and is expected to yield about 40–65% of optimal production.

scholarly journals Correlation and path analysis of durum wheat (Triticum turgidum L. Var. Durum)

2013 ◽  
Vol 38 (3) ◽  
pp. 515-521 ◽  
Author(s):  
AA Khan ◽  
MA Alam ◽  
MK Alam ◽  
MJ Alam ◽  
ZI Sarker
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Plant Height ◽  
Agricultural Research ◽  
Research Work ◽  
Wheat Variety ◽  
Grain Weight ◽  
Research Station ◽  
Positive Direct ◽  
1000 Grain Weight

A study was conducted to examine relationship between important traits of durum wheat and their direct and indirect effects on grain yield. Research work was conducted during the winter season of 2009-10 under irrigated optimum seeding condition at Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Ishurdi, Pabna with 10 advanced genotypes. A wheat variety was used as check. Positive and significant correlation was found for plant height, spikes/m2, and 1000-grain weight with grain yield. Head days and maturity days showed considerable negative correlation with grain yield. Maturity days, spikes/m2, and 1000-grain weight had significant positive direct effects on grain yield. Grains/spike had direct positive effect but in low magnitude. The indirect effect of head days and plant height on grain yield was found mainly through maturity days and 1000-grain weight. It can be concluded that more emphasis should be given on head days and plant height along with 1000-grain weight, spikes/m2, and grains/spike during selection for dururn wheat improvement. DOI: http://dx.doi.org/10.3329/bjar.v38i3.16978 Bangladesh J. Agril. Res. 38(3): 515-521, September 2013

scholarly journals Effect of irrigation methods and mulching on growth and yield parameters of chilli (Capsicum annum L.) in arid condition

1970 ◽  
pp. 81
Author(s):  
R L Bhardwaj, M M Sundria, S R R Kumhar, N Kumar
Keyword(s):  
Drip Irrigation ◽  
Agricultural Research ◽  
Research Work ◽  
Fruit Rot ◽  
Growth And Yield ◽  
Cost Ratio ◽  
Research Station ◽  
Plastic Mulch ◽  
Irrigation Methods ◽  
The Impact

The research work was carried out to study the impact of various irrigation methods and mulching on plant growth, production and profitability of chilli cv. R.Ch. 1 at Agricultural Research Station, Mandor, Jodhpur during July, 2016 to February, 2017. The results of surface irrigation were compared with drip irrigation system under no mulch and in conjunction with plastic mulch. The results revealed that the crop was irrigated by drip irrigation on raise bed with 100 micron Linear Low Density Poly Ethylene plastic mulch (T8 treatment) exhibited significantly higher seedling survival at 15 and 30 days after transplanting (95.16% and 91.70%), highest plant height (47.10 cm at 45 DAT and 54.60 cm at harvest), highest number of branches (14.93) plant-1, maximum stem girth (2.32 cm) number of roots plant-1 (138.5), highest fruit set (38.47%), length of fresh fruit (12.56 cm), diameter of fruit (3.52 cm) and fresh weight of fruit-1 (8.42g) was observed. The maximum number of fruits plant-1(125), highest yield plant-1 (1052.5g), yield ha-1 (337.63q) and premier fruit quality score (9.11) with maximum net return (Rs.326407.28) and benefit: cost ratio (3.41) was also reported in same treatment. Comparatively minimum time (15 hours) required for one hectare irrigation was also reported in drip irrigation on raise bed with plastic mulch. This led to lower population of white fly plant-1 (4.53), minimum weed infestation (1.53 weed m-2), leaf curl (5.50%) and fruit rot (5.0%) incidence than other treatment combinations. The minimum growth, yield and profitability were reported in check basin method of irrigation without mulch (T1 treatment).

Qualitative land suitability evaluation for the growth of onion, potato, maize, and alfalfa on soils of the Khalat pushan research station

Biologia ◽  
2006 ◽  
Vol 61 (19) ◽  
Author(s):  
Ali Jafarzadeh ◽  
Goldasteh Abbasi
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Research Work ◽  
Land Suitability ◽  
Research Station ◽  
Square Root ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Limitation Method ◽  
Square Root Method

AbstractAn area suitability assessment for crop production requires a considerable effort, which can provide necessary information for optimum land use. Agricultural land use has benefited significantly from the use of suitability systems in recent years. These systems have jointly showed their capabilities in the evaluation and assessment of suitable sites for a variety of crops.In the present study and research work land suitability evaluation (qualitative classification) has been determined for onion, potato, maize and alfalfa in Khalat pushan research station of Tabriz University in East Azerbaijan by using of Simple Limitation method (SLM), Limitation Method regarding Number and Intensity (LMNI) and parametric (PM) such as square root and storie methods. Climate, soil and landscape qualities and their characteristics which most influence crop suitability have been combined by the adopted methodology. In this study economic factors have been excluded and moderate management has been assumed. The use of different methods showed that the most important limitation factors are climate, lime, pH, OM, texture and gravel alone or in combinations. Evaluation indicates that SLM and LMNI show similar suitability classes, which confirms the previous findings for several crops by other researchers. However, in many cases the use of parametric methods, especially the square root method revealed to be more realistic in showing the distinguished suitability classes in many cases. Therefore, based on the obtained results (especially by the square root method), the cultivation of alfalfa, potato and onion can be recommended, except for soil profile 2, which is not suitable (N2) for onion.

scholarly journals Diatom culture collection of the Karadag scientific station (Crimea)

2017 ◽  
Vol 2 (1) ◽  
pp. 18-28 ◽  
Author(s):  
N. A. Davidovich ◽  
O. I. Davidovich ◽  
Yu. A. Podunay
Keyword(s):  
Research Work ◽  
Culture Collection ◽  
Life Cycles ◽  
The Black Sea ◽  
Research Station ◽  
Freshwater Species ◽  
Culture Collections ◽  
Gene Migration ◽  
Clonal Cultures ◽  
Scientific Station

Diatoms present one of the most diverse groups of microalgae: there are about 30 thousands recognized species and existence of 100 thousand species is supposed in total. In the course of evolution, which was accompanied by two phases of symbiogenesis and significant lateral gene migration from prokaryotes and protozoa, diatoms inherited a unique set of genes, pathways of biosynthesis, and physiological properties. The use by human of genetic and bioproduction potential of diatoms is extremely low. There are several reasons for such a situation, among them a weak knowledge of the diatom biology and very low, in contrast to other groups of unicellular algae, their representation in culture collections. Isolation of clones (strains) and establishing new cultures is at first glance a trivial task, however, when trying to estimate the number of species maintaining in the world famous collections in the form of live cultures, we have to recognize the fact that in practice it is not solved. A possible explanation for this is that there is no experience sufficient for cultivation of diatoms and right idea about their life cycles. At Karadag research station, studying of diatoms has been lasting for over forty years. Three generations of researchers has accumulated vast experience in isolation and maintenance of clonal cultures. To date, a working collection has been formed, which includes more than 400 clones belonging to 27 marine and 7 freshwater species. The cultures are kept in liquid media and regularly reinoculated. The origin of clones, in addition to the Black Sea, covers different regions of the oceans; freshwater species were taken from many regions throughout Eurasia. The culture collection is important for research work, in particular for study of reproductive peculiarities, species biogeography, intraspecific variation; but it has also significant potential for practical use.

scholarly journals Cocoa research in West Irian (West New Guinea).

1964 ◽  
Vol 12 (2) ◽  
pp. 89-112
Author(s):  
J. Ruinard
Keyword(s):  
Agricultural Research ◽  
Research Work ◽  
New Guinea ◽  
Research Station ◽  
Plant Spacing ◽  
Pests And Diseases ◽  
Agricultural Research Station ◽  
Processing And Storage ◽  
And Storage

Research work carried out at the Manokwari Agricultural Research Station up to the end of 1962 is reviewed. Breeding and selection were the main projects, but the work reviewed also included studies on plant spacing, rootstock effects on scions, and the processing and storage of cocoa. Pests and diseases did not constitute serious problems, and shade appeared to be unnecessary. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Gray level co-occurrence matrix (GLCM) texture based crop classification using low altitude remote sensing platforms

2021 ◽  
Vol 7 ◽  
pp. e536
Author(s):  
Naveed Iqbal ◽  
Rafia Mumtaz ◽  
Uferah Shafi ◽  
Syed Mohammad Hassan Zaidi
Keyword(s):  
Research Work ◽  
Support Vector ◽  
Gray Level ◽  
Gray Scale ◽  
Phenological Stages ◽  
Optical Images ◽  
Different Types ◽  
Low Altitude ◽  
Crop Classification ◽  
Occurrence Matrix

Crop classification in early phenological stages has been a difficult task due to spectrum similarity of different crops. For this purpose, low altitude platforms such as drones have great potential to provide high resolution optical imagery where Machine Learning (ML) applied to classify different types of crops. In this research work, crop classification is performed at different phenological stages using optical images which are obtained from drone. For this purpose, gray level co-occurrence matrix (GLCM) based features are extracted from underlying gray scale images collected by the drone. To classify the different types of crops, different ML algorithms including Random Forest (RF), Naive Bayes (NB), Neural Network (NN) and Support Vector Machine (SVM) are applied. The results showed that the ML algorithms performed much better on GLCM features as compared to gray scale images with a margin of 13.65% in overall accuracy.

scholarly journals Study and Comparison of Different Methods of Nonsexual Propagation of F12/1 and Colt Rootstocks of Cherry

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 634f-635
Author(s):  
A. Talaie ◽  
Sh. Khan Gholi
Keyword(s):  
Agricultural Research ◽  
Callus Formation ◽  
Lateral Roots ◽  
Block Design ◽  
Research Work ◽  
Climatic Conditions ◽  
Research Station ◽  
High Concentration ◽  
Rooted Cuttings ◽  
Randomized Block Design

This research work was carried out for 2 years at Kelardasht-Mazandaran and Mardabad-Karaj Agricultural Research Stations to evaluate the rooting of selected and hybrid F12/l and Colt rootstocks under climatic conditions of Iran. Young F12/l and colt rootstocks (semi-hard wood and summer cuttings) available in Kelardasht Agricultural Research Station were used These rootstocks were also used for layering. Summer cuttings were taken in early July and, after wounding, were treated with IBA with 1000, 2000, and 3000 ppm and then put under mist. Three months later the rooted cuttings were evaluated on the basis of rooting percentage, number and the length of the main and the lateral roots and the length of the rooted section. The hardwood cuttings were prepared in two intervals (early Dec. and late March) and, when wounded, were treated with IBA with the same concentrations. Finally, the experiments were completed by horizontal layering of several rootstocks and covering them with soil. The results were used in a completely randomized block design in four treatments, and the averages were compared by Duncan test. The results indicate that the summer cuttings treated with 1000 ppm IBA have the highest rooting percentage in both rootstocks, while those treated with 2000 ppm gave the best results with regard to number and the length of the main root. The best result on the number and the length of the lateral roots are achieved in cuttings treated with 2000 ppm IBA. Number and the length of lateral roots in Colt and F12/l rootstocks are, respectively, high in cuttings treated with 2000 and 3000 ppm. IBA. In semi-hardwood cuttings, different concentrations of IBA were effective on callus formation and budbreak. Thus, there were more callus formation in high concentration and the number of budbreaks was reduced. Study on the layering method indicates that there are 6.1 and 3 rooted cuttings in every Colt and F12/l layered rootstocks respectively. The rooting percentage in the said rootstocks is 100% and 73.3%, respectively.

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