RNA interference (RNAi), as a new and popular transgenic biotechnology, often refers to some short-stranded double-stranded RNA (dsRNA), which can effectively block the expression of specific genes in the body by promoting the degradation of specific mRNAs. This technology has played an important role in the field of gene function research, and is considered to be a new breeding method with great application potential. There are many in-depth researchs on genetically modified tomatoes and potatoes.

In vitro propagation and large scale cultivation of economically important crops like-potato, banana, gerbera, orchid etc. has been commercially practiced in all over the world. Ammonium nitrate (NH4NO3) is an important ingredient of tissue culture medium which is used as a major salt. Demerits of NH4NO3 has restricted its use in tissue culture. It is an explosive chemical and use for making bombs and many other destructive activities. Hence, it is totally band in many countries like Bangladesh, India, Pakistan etc,. We are able to identify a alternate chemical of NH4NO3 which is comparatively cheap, non destructive, environment friendly and available everywhere in the world. We are symbolized, it as a ”β-chemical” for patent document and other privacy.

Salinity stress adversely affected the growth, productivity and yield of rice from last few decades. Here, in this study the ameliorative role of exogenous spray of potassium (K) and salicylic acid (SA) have been investigated against salinity stress in rice. Four rice varieties (Kashmir Basmati, Basmati-370, Super-Basmati and Basmati-515) were exposed to NaCl stress (0, 100 mM) and sprayed with SA (0.02 %), K (0.1 %) and their combination (SA+K) at vegetative and flowering stages. Salinity stress caused reduction in morpho-physiological attributes (fresh/dry weight per plant, leaf area, chlorophyll contents (a, b and total), stomatal conductance andrelative water contents. Moreover, the salt induced oxidative stress was confirmed by remarkable changes in plant metabolism (total soluble sugars, nitrate, nitrite reductase, proline), plant ionic relations (sodium, potassium, calcium, magnesium, phosphorus ions) and plant yield (number of tillers per plant, number of panicles per plant, harvest index and seed yield per plant).

The aim of presentation consist of plant science, molecular biology, health, employment, income, economy, life, financial crises, global poverty and hunger were studied and reported that Plant science and molecular biology is the major industry for the development of health, basic need of daily life, create employment, generate income, stronger economy, reduces financial crises, global poverty and hunger in the developing countries of the world particularly in South Asia. The study reported that Plant science is the study of plant growth, reproduction, evaluation and adaptation as well as the use of plant for food, fiber and ornamental purposes. The study reported that plant science is the study of plant life of a particular region or time. It is the biological characteristics of a particular group of plant. The science of plant is the branch of biology that deals with plant life

Temperature and water regimes are the main factors that affect the growth, development, and yield of plants growing in arid and semi-arid regions. Consequently, any change in climate will likely have a major influence on plants growing in these areas. For example, a 1-3 0C rise in temperature can shift growth to 5-14 days earlier, which may result in growth initiation during the last week of February. This shift may be critical for the growth of vegetation where growth would be shifted to a period of more intensive rainfall and lower air temperatures, resulting in declines in total biomass production. This may be particularly important for sedges (Carex spp.), a main fodder crop in Central Asia, which have previously been shown to exhibit considerable reductions in height during the last 30 years.

This study was conducted at “Girdarasha” research fields – College of Agriculture/University of Salahaddin-Erbil-Iraq–, during the winter season of (2017-2018) to determine the effect of seeding rates and nitrogen fertilizer on growth, yield, yield components and quality of canola (Brassica napus L.). Split plot designs with four replicates were used, Main plots represented by four nitrogen rates (0, 100, 200, 300 kg N/ha), While sub plots were represented by three levels of seeding rates (5, 6, 7 kg/ha). The following results were obtained: - Seeding rate of 5 kg/ha led to elongate the duration from emergence to inflorescence, increase of leaves number and total leaf area at 134 days from seeding, and led to increase of plant height, number of primary branches, then the number of siliques in compare to other seed rates, but the 7 kg/ha seed rate elongate the period from inflorescence to physiological maturity and the period from emergence to physiological maturity

The breeding of tossa jute plant is the main way to develop its qualitative and quantitative traits like higher fiber yield with good qualities, but it is problematic due to narrow genetic base and high photosensitivity of jute plant. Bangladesh Jute Research Institute developed a new high yielding tossa jute (Corchorus olitorius L.) variety (MG-1) through pure line selection method during 2015-17. The tossa jute experimental materials were collected from Uganda used with control variety BJRI Tossa pat-5 (O-795). A variety (OM-1) with ovate glossy leaves, gray seeds was developed by hybridization from these genotypes.

Broccoli (Brassica oleracea L. var. italica) is known as an excellent source of health-promoting phytochemicals such as vitamins, glucosinolates, and phenolics. The study aimed to investigate in vitro antioxidant, antiproliferative, apoptotic, and antibacterial activities of broccoli. Broccoli was sampled in four groups, including florets, fiveday-old sprouts, leaves, and seeds. Sprouts extracted by 70% ethanol showed the highest antioxidant activities, analyzed to be 68.8 µmol Trolox equivalent (TE)/g dry weight by 2,2’-azino-bis-3- ethylbenzothiazoline-6-sulphonic (ABTS) assay, 91% scavenging by 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, 1.81 absorbance by reducing power assay, and high phenolic contents by high-performance liquid chromatography (HPLC).

A plant gets a medicinal value when it is has a positive effect on wellbeing of a man. However some plants are specifically used for many ailments and are generally known as “Medicinal plants”. It is known that nearly 1500 species of medicinal plants have been identified in the world and 189 of these are endemic to Sri Lanka. Medicinal plants are distributed more in tropical rain forests and many illicit narcotic drugs are now being considered as having a medicinal value, i.e. “ Medical Marijuana” The emerging science of applying marijuana’s beneficial side effects to an individual patient’s needs while minimizing the undesirable side effects on the patient’s life that was practicing in pre-historic era.

Deoxyribonucleic acid (DNA) is a carrier of genetic information but also an organic compound with complex molecular structure [1]. Accurate quantification of DNA is of great importance for many critical areas, including many biological, clinical and microbiological analyses. The most routinely used traditional methods for DNA quantification are UV spectrophotometry (UV) and fluorescent dye, but their sensitivity and stability is still quite limited. Quantitative PCR (qPCR) dramatically improved the limit of detection (LOD), yet is still facing higher risk of false positives. Most importantly, the traceability of DNA concentration remains a challenge in most of the gene analysis labs

Cosmeceuticals have been developed with claims of anti-wrinkle and firming, moisturizing and lifting, and skin toning and whitening activity. The aging of the skin manifests itself in many ways: drying out, loss of elasticity and texture, thinning, damaged barrier function, the appearance of spots, modification of surface line isotropy, and, finally, wrinkles. Antioxidant products are the main cosmeceuticals in the market currently being made using active ingredients. Over the last decade, the advantages of plant stem cells and tissue culture technologies have been widely explored in the development of highlyefficient platforms for more rapid production of pharmaceutically important molecules of plant origin or heterologous expression of therapeutic proteins. Nowadays, there are many cosmetic products, including both cosmeceuticals and nutricosmetics, which have active ingredients, derived by plant cells culture technology which are used in topical products as active material.