hamoon is a new bread wheat cultivar derived from progenies of a cross made between falat and roshan. it is of spring habit and early maturity, 90-100 cm plant height, white spikes and thousand kernel weight of 40-45 gram. it is tolerant to lodging and environmental stresses(drought and salinity) as will as yellow rust. hamoon has hard grains of amber colour with averae protein content of 10.5%...

Mutualistic associations are shaped by the interplay of cooperation and conflict among the partners involved, and it is becoming increasingly clear that within many mutualisms multiple partners simultaneously engage in beneficial interactions. Consequently, a more complete understanding of the dynamics within multipartite mutualism communities is essential for understanding the origin, specific...

The beneficial effects of elevated CO2 on plants are expected to be compromised by the negative effects posed by other global changes. However, little is known about ozone (O3)-induced modulation of elevated CO2 response in plants with differential sensitivity to O3. An old (Triticum aestivum cv. Beijing 6, O3 tolerant) and a modern (T. aestivum cv. Zhongmai 9, O3 sensitive) winter wheat cultiv...

A field study was conducted to evaluate soybean cultivar sensitivity to Pratylenchus brachyurus and selected nonfumigant nematicides for control of this nematode. 'Essex', a tolerant cultivar, yielded more than 'Forrest' , a sensitive cultivar, in an infested field. Plots treated with aldicarb, carbofuran, and fenamiphos had fewer nematodes 40 days after planting than nontreated plots. Plots pl...

Potato ( L.) breeders consider a large number of traits during cultivar development and progress in conventional breeding can be slow. There is accumulating evidence that some of these traits, such as yield, are affected by a large number of genes with small individual effects. Recently, significant efforts have been applied to the development of genomic resources to improve potato breeding, cu...

In the gene-for-gene hypothesis, Flor [19] proposed the existence of avirulence alleles of virulence genes, and that the virulence genes actively conditioned cultivar-specific virulence on hosts. Yet cultivar-specific virulence genes have not been found, and many of the avirulence (aŠr) genes cloned to date (over 40) do not appear to condition pathogenicity in general, virulence or anything els...

Microsatellites, or simple sequence repeats (SSRs), especially those with long-core motifs (tri-, tetra-, penta-, and hexa-nucleotide) represent an excellent tool for DNA fingerprinting. SSRs with long-core motifs are preferred since neighbor alleles are more easily separated and identified from each other, which render the interpretation of electropherograms and the true alleles more reliable....

The Malnad region located in the Western Ghats of Karnataka is known for the cultivation of indigenous rain fed land race cultivar of rice. The present study was to investigate the callogenic and caulogenic potentialities of the two indigenous rice cultivar namely Karimundaga and Kanadatumba using dehusked mature embryo explants. For callus and shoot bud differentiation, the explants were cultu...

Maize yields in many regions of the world have increased significantly since 1960s. The increase is mainly attributed to technological improvements and climate change. On a regional scale recent decades, change has altered growth conditions maize this, turn, influenced changes yield. In order analyze contribution different factors yield changes, obtain model setup that could be used for further...

of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy INDIRECT SHOOT ORGANOGENESIS AND SELECTION OF SOMACLONAL VARIATION IN Dieffenbachia 11 By Xiuli Shen May 2007 Chair: Michael E Kane Cochair: Jianjun Chen Major: Horticultural Science A series of experiments were conducted to investigate ...