Effect of Pre-Harvest Application of GA3 and PP333 as Bulb Dip and Foliar Spray on Quality and Vase Life of Cut Tulip cv. Cassini

An experiment on effect of pre-harvest application of GA3 and PP333 as bulb dip and foliar spray on quality and vase life of cut tulip cv. Cassini was carried out. Healthy scapes of uniform size were cut in a slanting manner at bud colour break stage and placed in conical flasks containing distilled water for vase life studies. Bulb dip in GA3 (100 ppm) followed by foliar spray of GA3 (100 ppm) significantly improved overall water uptake, prevented water loss and resulted in maximum water balance. The treatment also exhibited the maximum flower diameter (7.40 cm), scape length (16.26 cm) and vase life (9.33 days). However, the lowest water loss to water uptake ratio was recorded with bulb dip plus foliar spray with 200 ppm GA3. Data indicated that GA3 (100 ppm) as bulb dip plus foliar spray proved instrumental in maintaining the quality and vase life of cut tulip as compared to other treatments

Effect of Spacing and Corm Size on Growth, Flowering and Corm Production in Gladiolus cv. White Prosperity under Kashmir Conditions

A study was carried out during 2005 - 2006 at the Division of Floriculture, Medicinal and Aromatic Plants, SKUAST-K, Shalimar, to determine the effect of corm size (4.1-4.5, 4.6-5.0 and 5.1-5.5 cm) and spacing (10 x 20, 15 x 20 and 20 x 20 cm) on growth, flowering and corm production in gladiolus cv. White Prosperity. Largersized corms (5.1-5.5 cm) with wider plant spacing (20 x 20 cm) gave the best performance. Number of days taken to spike emergence, plant height, number of leaves plant-1, spike length, number of florets spike-1 and diameter of floret were observed to be significantly better with larger-sized corms. Minimum days taken to slipping were also found to be due to larger size of the corms. Number of corms plant-1, corm weight, diameter of corm, number of cormel plant-1 and cormels weight plant-1, in terms of both quality and quantity, showed increasing trend with an increasing corm-size and spacing. Therefore, wider spacing and larger corm size may be recommended for realising better quality and higher production in gladiolus cv. White Prosperity under Kashmir conditions

Effect of NPK and Zn on Growth, Flowering and Bulb Production in Tulip under Polyhouse Conditions in Kashmir

Healthy and uniform bulbs of tulip cv. 'Apeldoorn' were planted in two consecutive growing seasons under polyhouse conditions in FRBD design to study the effect of nutrient management on growth, flowering and bulb production in tulip in the Kashmir valley. Experimental treatments comprised of three levels of nitrogen (0,75 and 150 kg ha-1) and two levels of phosphorus (0 and 50 kg ha-1), potassium (0 and 50 kg/ha) and zinc (0 and 5 kg ha-1). Except for bulb survival, nitrogen @ 75 kg ha-1 significantly improved all the parameters. However, further increase in dose of nitrogen (150 kg ha-1) influenced only a few parameters like scape length, wrapper leaf area, vase life and bulblet weight per plant. Application of phosphorus, potassium and zinc also resulted in better growth, flower quality and bulb production. Application of different nutrients caused increased concentration of nutrients in leaf tissue, which resulted in better performance of the plant. Combined application of N, P, K and Zn @ 75, 50, 50 and 5 kg ha-1, respectively, was found to be the most suitable dose for obtaining better growth, quality flower and bulb production

Compact relativistic geometries in f(R,G)f(R,G) gravity

One of the possible potential candidates for describing the universe's rapid expansion is modified gravity. In the framework of the modified theory of gravity $f(R,G)$, the present work features the materialization of anisotropic matter, such as compact stars. Specifically, to learn more about the physical behavior of compact stars, the radial, and tangential pressures as well as the energy density of six stars namely $Her X-1$, $SAXJ1808.4-3658$, $4U1820-30$, $PSR J 1614 2230$, $VELA X-1$, and $Cen X-3$ are calculated. Herein, the modified theory of gravity $f(R,G)$ is disintegrated into two parts i.e. the $\tanh$ hyperbolic $f(R)$ model and the three different $f(G)$ model. The study focuses on graphical analysis of compact stars wherein the stability aspects, energy conditions, and anisotropic measurements are mainly addressed. Our calculation revealed that, for the positive value of parameter n of the model $f(G)$, all the six stars behave normally.Comment: Some changes have been made. " To appear in International Journal of Geometric Methods in Modern Physics

A Robust Regression-Based Stock Exchange Forecasting and Determination of Correlation between Stock Markets

Knowledge-based decision support systems for financial management are an important part of investment plans. Investors are avoiding investing in traditional investment areas such as banks due to low return on investment. The stock exchange is one of the major areas for investment presently. Various non-linear and complex factors affect the stock exchange. A robust stock exchange forecasting system remains an important need. From this line of research, we evaluate the performance of a regression-based model to check the robustness over large datasets. We also evaluate the effect of top stock exchange markets on each other. We evaluate our proposed model on the top 4 stock exchanges—New York, London, NASDAQ and Karachi stock exchange. We also evaluate our model on the top 3 companies—Apple, Microsoft, and Google. A huge (Big Data) historical data is gathered from Yahoo finance consisting of 20 years. Such huge data creates a Big Data problem. The performance of our system is evaluated on a 1-step, 6-step, and 12-step forecast. The experiments show that the proposed system produces excellent results. The results are presented in terms of Mean Absolute Error (MAE) and Root Mean Square Error (RMSE)

Effect of Dry and Wet Storage on Post Harvest Life and Flower Quality in Cut Tulip cv. Cassini

Experiments were conducted during 2002-03 and 2003-04 to study the influence of storage methods and duration on post harvest quality of cut tulip cv. Cassini. Cut tulips cv. Cassini stored either dry or wet at 4°C for 0,2,4,6 and 8 days showed that days to flower opening was the lowest in those kept under wet storage for 6 and 8 days. Flower opening was better with 0.2 and 4 days of dry or wet storage whereas flowers stored dry for 8 days did not open at all. Flower size and vase life decreased with the increase in storage period. Larger flowers were obtained with dry and wet storage of 0 and 2 days whereas higher vase life was obtained with zero days of wet and dry storage and 4 and 6 days of wet storage

Studies on Physical and Chemical Characteristics of Pomegranate Cultivars in Kashmir Valley

Ten pomegranate (Punica granatum L.) cultivars, namely, Kabuli Kandhari, Chawla, Ganesh, Mridula, Jyoti, G-137, Dholka, Bedana, Kandhari and Local Check were evaluated for different physical and chemical characteristics of fruit at the Central Institute of Temperate Horticulture, Srinagar, during 2004. Fruit weight, diameter and volume was significantly higher in cv. Bedana compared to the rest of the cultivars. Cultivar Kandhari recorded significantly less rind thickness when compared to other cultivars. Cultivar Chawla exhibited less cracking per cent followed by Kandhari. Total soluble solids and total sugars were highest in cv. Kandhari whereas less acidity was recorded in cvs. Ganesh and G-137% acidity was lowest in cv. G-137 (0.41) and highest in cv. Bedana (0.81). Highest ascorbic acid content was found in cv. Kabuli Kandhari. The highest anthocyanin content was observed in cv. Ganesh and lowest in cv. Chawla. Juice content was found to be maximum in Bedana. The lowest anar butterfly attack was observed in cv. Bedana. The data revealed overall superior performance of cv. Bedana and Kandhari with regard to physical and chemical characteristics and these can be recommended for commercial cultivation in the Karewa belt of Kashmir valley

Search for a Signal on QCD Critical Point in Central Nucleus-Nucleus Collisions

We discuss that the QCD critical point could appear in central collisions in percolation cluster. We suggest using the nuclear transparency effect and the one of the light nuclear production to identify the critical point.Comment: To appear in the proceedings of the 20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (QM2008), Jaipur, India, February 4-10, 200

Historical perspective of in situ hybridization for the analysis of genomic constitution of plants

In situ hybridization involves hybridization of DNA or RNA probes to the cytological preparations. The technique originally used auto-radiographic labeling to map both repetitive and low copy DNA sequences. The problem associated with this technique was its short half life, lack of safety and long exposure time which hindered its widespread use in DNA hybridization. To overcome these problems, non isotopic in situ hybridization was developed for use in animal and plant species. In the last decade, the development of haptens and fluorochromes enabled simultaneous multicolored detection of differentially labeled probes. Characterization of parental genomes in interspecific hybrids, restructured chromosomes, gene mapping, detecting nature of chromosome pairing, establishing phylogenetic relationship among the species and localizing introgressed segment have been successfully achieved by fluorescence in situ hybridization. Keywords: In situ hybridization, phylogenetic relationship, homoeologous pairin