scholarly journals Changes in Anatomic Structure of Burley Tobacco under the Influence of Irrigation and Fertilization

2005 ◽  
Vol 21 (6) ◽  
pp. 345-349 ◽  
Author(s):  
V Pelivanoska ◽  
K Filiposki ◽  
J Trajkoski
Keyword(s):  
Interactive Effect ◽  
Alluvial Soil ◽  
Leaf Lamina ◽  
Intercellular Spaces ◽  
Anatomic Structure ◽  
Burley Tobacco ◽  
Palisade And Spongy Parenchyma ◽  
Constant Rate ◽  
Phosphorus And Potassium ◽  
Filling Capacity

AbstractInvestigations were made with the new burley variety B 2/93, bred in the Tobacco Institute Prilep, on alluvial soil type in the producing region of Ohrid and Struga. Four rates of nitrogen fertilizer (55, 100, 150, and 200 kg ha-1) and a constant rate of phosphorus and potassium were applied in the investigation.Based on the results obtained, it can be stated that fertilization and irrigation have a significant influence on the anatomic structure of burley tobacco leaf. The best developed anatomic structure, with harmonically increased palisade and spongy parenchyma, was found in the variant fertilized with 150 kg ha-1 N. The cells of the parenchyma are not dense, and the spongy cells are few and irregularly distributed, forming large intercellular spaces between them. As a result of the interactive effect of irrigation and fertilization, this treatment is distinguished by a thick and soft leaf lamina with excellent adsorptive power, high filling capacity and, consequently, better quality.

Interactive Effect of Phosphorus and Potassium on Growth, Yield, Quality and Seed Production of Chili (Capsicum annuum L.)

2017 ◽  
Vol 04 (01) ◽  
Author(s):  
Mehnaz Akram ◽  
Sayed Hussain ◽  
Abdul Hamid ◽  
Sajid Majeed ◽  
Saeed Ahmed Chaudary ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Seed Production ◽  
Interactive Effect ◽  
Growth Yield ◽  
Capsicum Annuum L ◽  
Yield Quality ◽  
Phosphorus And Potassium

The response of Chamaecyparisnootkatensis stecklings to seven nutrient regimes

1992 ◽  
Vol 22 (5) ◽  
pp. 647-653 ◽  
Author(s):  
B.J. Hawkins
Keyword(s):  
Phosphorus Deficiency ◽  
Complete Solution ◽  
Dry Weight ◽  
Vancouver Island ◽  
Mineral Elements ◽  
High Productivity ◽  
Constant Rate ◽  
Phosphorus And Potassium ◽  
Photosynthetic Responses ◽  
Total Dry Weight

Yellow cypress (Chamaecyparisnootkatensis (D. Don) Spach) stecklings (rooted cuttings) of two clones from each of three provenances representing northern and southern Vancouver Island and the lower mainland, British Columbia, were grown in inert rooting medium and fertilized with seven nutrient solutions. The stecklings were compared for their growth and photosynthetic responses to (i) deficiencies of nitrogen, phosphorus, and potassium separately, or a deficiency of all three macronutrients; (ii) nutrients supplied in excess; and (iii) nutrients supplied at constant or exponentially increasing rates. One clone from the northern Vancouver Island provenance was consistently more productive than the others, having the greatest total dry weight and highest net photosynthetic rate in all nutrient treatments. The "complete" nutrient mix supplied in exponentially increasing volumes provided maximum response in growth and photosynthesis for all clones. This response was not significantly better than that of stecklings that received the complete solution at a constant rate of addition; however, stecklings supplied at a constant rate were less efficient in their uptake of macronutrients. Deficiency of nitrogen resulted in the greatest reduction in steckling growth. Phosphorus deficiency resulted in the greatest reduction in stomatal and mesophyll conductances, and therefore assimilation rate. Provided the proportions of individual mineral elements were balanced, plants subject to very low levels of nutrition survived and continued to photosynthesize. Nutrients provided in excess resulted in luxury consumption, and eventually led to plant death. This study demonstrates the potential for using nutritional testing in clonal screening trials to reveal high productivity or deficiency-susceptible clones.

scholarly journals Principal Aliphatic Secondary Amines of Burley Tobacco

1970 ◽  
Vol 5 (6) ◽  
Author(s):  
L. Bush
Keyword(s):  
Nitrogen Content ◽  
Plant Tissue ◽  
Steam Distillation ◽  
Secondary Amines ◽  
Basic Medium ◽  
Stem Tissue ◽  
Drying Process ◽  
Leaf Lamina ◽  
Burley Tobacco ◽  
Amine Content

AbstractQuantity and distribution of the principal aliphatic secondary amines - dimethylamine, methylethylamine, diethylamine, and methylpropylamine - varied within plant tissue and among Nicotiana spp. In Burley tobacco the stem tissue had the highest content of these amines and the leaf midrib the lowest. Leaf lamina, roots and seed were intermediate in amine content. Among Nicotiana spp. there was considerable difference in total amine content as well as among the ratios of the amine fractions measured. Amine content of tissue was positively correlated with nitrogen content of tissue and was altered by the drying process of tissue prior to analysis. The amines were not present as free amines or salts but were detected only following steam distillation from a basic medium

scholarly journals Long Term Effects of Organic and Inorganic Fertilizers on Rice under Rice-Wheat Cropping Sequence

1970 ◽  
Vol 9 ◽  
pp. 7-13 ◽  
Author(s):  
Yagya Gajadhar Khadka ◽  
Suresh Kumar Rai ◽  
Sambhu Raut
Keyword(s):  
Organic Carbon ◽  
Grain Yield ◽  
Rice Yield ◽  
Alluvial Soil ◽  
Available Phosphorus ◽  
Inorganic Fertilizers ◽  
Cropping Sequence ◽  
Phosphorus And Potassium ◽  
Organic And Inorganic Fertilizers

A long term field experiment was started in 1989 on alluvial soil of Inceptisol at Agronomy Research Farm, Khumaltar, Lalitpur to evaluate the effects of organic and inorganic fertilizers on soil properties and yields of rice under ricewheat cropping sequence. Rice yield was monitored from 1998 to 2003. Chianung-242 rice variety was used as a test crop for all of the five years of experimentation. All the treatments manifested significant increase in rice yield over control. Results showed highest significant grain yield of 7.9 tons ha-1 from the sole application of farmyard manure (FYM) @ 10 tons ha-1. The long-term experiment exhibited that the balanced application of chemical fertilizers alone did not sustain soil productivity under continuous cropping system. Application of 100 kg N ha-1 alone produced the yield up to 7.2 tons ha-1 whereas phosphorus and potassium did not affect the yields in most of the years. None of the soil properties, soil pH, organic carbon, total nitrogen, available phosphorus and potassium were affected by application of balanced fertilizers while with the application of 10 tons FYM ha-1, the total nitrogen, available phosphorus and organic carbon contents in the soil were improved as compared to other treatments. The efficiency of fertilizers and manure was influenced by the amount of rainfall received as reflected by the higher grain yield during the higher rainfall years. Key words: rice, alluvial soil, organic manure, inorganic fertilizers, rice-wheat system DOI: 10.3126/njst.v9i0.3156 Nepal Journal of Science and Technology 9 (2008) 7-13

Basal Lamina Formation in DMBA Induced Mammary Carcinoma

1977 ◽  
Vol 35 ◽  
pp. 534-535
Author(s):  
I. Russo ◽  
J. Saby ◽  
J. Russo
Keyword(s):  
Mammary Carcinoma ◽  
Virgin Female ◽  
Mammary Glands ◽  
Sesame Oil ◽  
Female Rats ◽  
Ultrastructural Changes ◽  
Post Inoculation ◽  
Intermediate Type ◽  
Sprague Dawley ◽  
Intercellular Spaces

It has been previously demonstrated that DMBA-induced rat mammary carcinoma originates in the terminal end bud (TEB) of the mammary gland by proliferation of intermediate type cells (1). The earliest lesion identified is the intraductal proliferation (IDP), which gives rise to intraductal carcinomas. These evolve to cribriform, papillary and comedo types (2). In the present work, we report the ultrastructural changes that take place in the IDP for the formation of a cribriform pattern.Fifty-five-day-old Sprague Dawley virgin female rats were inoculated intra- gastrically with 20 mg 7,12-dimethylbenz(a)anthracene (DMBA) in 1 ml sesame oil. Non-inoculated, age-matched females were used as controls. Mammary glands from both control and experimental rats were removed weekly from the time of inoculation until 86 days post-inoculation. The glands were fixed and processed for electron microscopy (2).The first change observed in IDP's was the widening of intercellular spaces and the secretion of an electron dense material into these spaces (Fig. 1).

Effect of ADH on Rat Renal Papilla, an Ultrastructural and Cytochemical Study

1973 ◽  
Vol 31 ◽  
pp. 410-411
Author(s):  
C. N. Sun ◽  
H. J. White ◽  
E. J. Towbin
Keyword(s):  
Electron Microscopy ◽  
Diabetes Insipidus ◽  
Renal Papilla ◽  
Milk Diet ◽  
Intercellular Spaces ◽  
Cytochemical Study ◽  
Collecting Tubule ◽  
Concentrate Urine ◽  
Staining Techniques ◽  
Collecting Tubules

Diabetes insipidus and compulsive water drinking are representative of two categories of antidiuretic hormone (ADH) lack. We studied a strain of rats with congenital diabetes insipidus homozygote (DI) and normal rats on an isocaloric fortified dilute milk diet. In both cases, the collecting tubules could not concentrate urine. Special staining techniques, Alcian Blue-PAS for light microscopy and lanthanum nitrate for electron microscopy were used to demonstrate the changes in interstitial mucopolysaccharides (MPS). The lanthanum staining was done according to the method of Khan and Overton.Electron microscopy shows cytoplasmic lesions, vacules, swelling and degenerating mitochondria and intercellular spaces (IS) in the collecting tubule cells in DI and rats on milk diet.

Comparison of Choriocarcinoma and Normal Placenta

1971 ◽  
Vol 29 ◽  
pp. 324-325
Author(s):  
John C. Garancis ◽  
Roland A. Pattillo ◽  
Robert O. Hussa ◽  
Jon V. Straumfjord
Keyword(s):  
Cell Lines ◽  
Small Cells ◽  
Tissue Cultures ◽  
Glycogen Depletion ◽  
Cell Surfaces ◽  
Intercellular Spaces ◽  
Concomitant Increase ◽  
Gestational Choriocarcinoma ◽  
Cytoplasmic Glycogen ◽  
Normal Placenta

Two different cell lines (Be-Wo and Jar) of human gestational choriocarcinoma have been maintained in continuous tissue culture for a period of four and two years respectively without losing the ability to elaborate human chorionic gonadotropin (HCG). Tissue cultures, as revealed by electron microscopy, consisted of small cells with single nuclei. In some instances cell surfaces were provided with microvilli but more often the intercellular spaces were narrow and bridged by desmosomes. However, syncytium was not formed. Endoplasmic reticulum (ER) was poorly developed in both cell lines, except in some Be-Wo cells it was prominent. Golgi complex, lysosomes and numerous free ribosomes, as well as excessive cytoplasmic glycogen, were present in all cells (Fig. 1). Glycogen depletion and concomitant increase of ER were observed in many cells following a single dose of 10 ugm/ml of adrenalin added to medium (Fig. 2).

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