Download or read book Effects of N and P Fertilizers on the Growth Nodulation and N2 fixation of Fababean Vicia Faba L Green Pea Pisum Sativum L and Dry Bean Phaseoulus Vulgaris L written by Saidou Koala and published by . This book was released on 1985 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1986 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation of Pea Pisum Sativum L and Common Bean Phaselous Phaseolus Vulgaris L at Various Phosphorus Supply Levels written by Mai Mohammed Osman Deiab Ahmed and published by Cuvillier Verlag. This book was released on 2007 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy Abstracts written by and published by . This book was released on 1985 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1985 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Handbook on Symbiotic Nitrogen Fixation written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1993 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: General information on the symbiotic nitrogen fixation. Isolation, identification and counting of rhizobia. Production of an inoculant and inoculation of legumes. Experiments.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy News written by and published by . This book was released on 1985 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Download or read book Effect of BA and GA3 on Germination Growth Nodulation and Nitrogen Fixation of Pea Pisum Sativum L Under Flooded Conditions written by Sandeep Kumar and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1996 with total page 2376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Biology and Ecology of Nitrogen Fixation written by Takuji Ohyama and published by BoD – Books on Demand. This book was released on 2014-01-29 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation has essential role in N cycle in global ecosystem. Several types of nitrogen fixing bacteria are recognized: the free-living bacteria in soil or water; symbiotic bacteria making root nodules in legumes or non-legumes; associative nitrogen fixing bacteria that resides outside the plant roots and provides fixed nitrogen to the plants; endophytic nitrogen fixing bacteria living in the roots, stems and leaves of plants. In this book there are 11 chapters related to biological nitrogen fixation, regulation of legume-rhizobium symbiosis, and agriculture and ecology of biological nitrogen fixation, including new models for autoregulation of nodulation in legumes, endophytic nitrogen fixation in sugarcane or forest trees, etc. Hopefully, this book will contribute to biological, ecological, and agricultural sciences.
Download or read book Effects of N and P Fertilizers on Common Bean Phaseolus Vulgaris L Grown in a P fixing Nicaraguan Mollic Andosol written by Marhta Izquierdo and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dinitrogen Fixation and Growth of Faba Bean Vicia Faba Lima Bean Phaseolus Limensis and Soybean Glycine Max as Affected by Three Insecticides written by Rana Tayyar and published by . This book was released on 1987 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insecticides when applied in combination with rhizobial inoculation on legume seeds might be harmful to the Rhizobium and may reduce biological dinitrogen fixation (N2-fixation). In a pot experiment in 1986, three insecticides were tested for their effects on N2-fixation and growth of faba bean (Vicia faba), lima bean (Phaseolus limensis) and soybean (Glycine max). The chemicals were carbofuran (soil applied), actellic 2% and malathion(seed applied) at the rates of 4 g/m, 0.5g/kg of seeds and 2cc/kg of seeds respectively. Actellic showed no significant effect on any of the characters studied. On the other hand, carbofuran significantly increased the foliage dry weight, nodule number, nodule dry weight, pod number and seed yield in most cases. In contrast, malathion significantly decreased the nodule number, nodule dry weight, pod number and seed number particularly in soybean. By regression analysis, a highly significant and positive relationship was observed between shoot % nitrogen on one hand and foliage dry weight and nodule number on the other in almost all treatment combinations. In addition, a positive and significant relationship was also found between foliage dry weight, nodule number and nodule dry weight at the flowering, pod initiation and pod filling stages.
Download or read book Nitrogen Fixation in Crop Production written by David W. Emerich and published by ASA-CSSA-SSSA. This book was released on 2009 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the science, application, and politics of the use of nitrogen-fixing crop plants across the globe in various environments. Nitrogen fixation can help provide a growing population with a nutritious, environmentally friendly, sustainable food supply. From new "omics" approaches to the role of nitrogen fixation in mitigating greenhouse gas emissions, from farming strategies in nonindustrialized nations to nitrogen fixation in the global economy, scientists will find the key issues and expanding research areas, and how they contribute to the next wave of advancements related to agriculture and the environment
Download or read book Improvement of N2 Fixation in Common Bean Phaseolus Vulgaris L at Different Levels of Available Phosphorus written by Pedro Antonio Arraes Pereira and published by . This book was released on 1987 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The effect of sulfur deficiency in pea Pisum sativum on factors related to nitrogen fixation and on sulfate transporters written by Parisa Pourmoayyed and published by Cuvillier Verlag. This book was released on 2016-07-25 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur has a vital role in the plant life cycle. S deficiency reduces optimal yield and quality in legumes which lead to a reduction in nutritional value of food and feed. S deficiency also alters the symbiotic interaction between leguminous plants and soil nitrogen fixing bacteria which leads to a decline in N2 fixation rate. An efficient symbiotic nitrogen fixation (SNF) in the nodule demands a strong nutrient exchange between plant and bacterial cells. The plant symbiotic sulfate transporter (SST) supports adequate S supply for full activity of nodules. In the present study, I investigated how different levels of S supply affect the protein and mRNA expression of genes related to N2 fixation in Pisum sativum. Moreover, different sulfate transporter genes were identified in pea and the functional analysis was performed for the symbiotic sulfate transporter from pea after expression in yeast double mutant. Growth retardation was observed in both weak and severe S deficient plants while severe S deficiency led to a significant decline in total biomass and shoot dry weight. Chlorosis and yellowish leaves in severe S deficient plant were observed as a consequence of a 43% decline in the chlorophyll content of young leaves in comparison with the control plants. Both weak and severe S deficiency reduced nodule formation. Thus, nodules appeared smaller and green with less leghemoglobin content in the S deficient groups. Relative transcript abundance of leghemoglobin genes (PsLb5 and PsLb120) did not change significantly under S deficiency conditions in the vegetative phase, thus confirming that expression of both genes is essential to create a low O2 concentration in young nodules. In contrast, severe S deficiency during the generative phase reduced expression of leghemoglobin at mRNA and protein levels. Furthermore, the higher leghemoglobin content in the generative phase is indicative for a higher leghemoglobin demand of mature nodules to maintain a low O2 environment and to protect the nitrogenase for an effective SNF. Nitrogenase is encoded by the nifHDK gene cluster. Severe S deficiency reduced the relative transcript abundance of the β subunits (NifK gene) while expression of α subunits (NifD gene) was mostly unaffected. S deficiency conditions increased relative transcript abundance of ferredoxin to compensate the S limitation in the nodule. Furthermore, a higher level of ferredoxin expression in the generative phase compared to the vegetative phase might be accompanied by a more SNF activity in the generative phase. In contrast to the nodule, relative ferredoxin transcript abundance was reduced under severe S deficiency in the root and leaf tissues supporting sulfite reduction and NADP photo-reduction. Both severe and weak S deficiencies reduced the relative transcript abundance of ferredoxin in the young leaves more than the mature leaves because the mature leaves are the main site of sulfate storage and assimilation. Severe S deficiency reduced expression of the nodule-specific sulfate transporter (SST) in both vegetative and generative phase of plant life which confirms a disruption in sulfate transport in symbiosomes. Phylogenetic analysis of 14-full length sulfate transporter sequences from pea and other known sulfate transporters from the leguminous family revealed that they fall into five major groups. In conclusion, a reduced sulfate import into the nodule probably reduces the sulfate related metabolites and interrupts the expression and biosynthesis of nitrogenase, leghemoglobin and ferredoxin proteins and eventually leads to an interruption of SNF. Moreover, severe S deficiency could limit the S compounds and S containing amino acids essential for the synthesis of critical products such as chlorophyll, thus leading to a lower rate of photosynthesis and fewer energy sources for an efficient yield.
