Genetic diversity of Teratosphaeria pseudoeucalypti in Eucalyptus plantations in Australia and Uruguay

Eucalyptus plantations have been used as a source of short fiber for papermaking for more than 40 years. The development in genetic improvement and clonal programs has produced improved density plantations that have resulted in fast growing, increased fiber volume eucalypts becoming the most widely used source of short fibers in the world. High productivity and short rotation times, along with the uniformity and improved wood quality of clonal plantations have attracted private industry investment in eucalypt plantations. Currently, only a handful of species or hybrids are used in plantation efforts. Many more species are being evaluated to either enhance fiber properties or expand the range of eucalypt plantations. Eucalyptus plantations are frequently planted on nonforested land and may be used, in part, as a means of conserving native forests while allowing the production of high quality fiber for economic uses. Finally, eucalypt plantations can provide significant carbon sinks, which may be used to help offset the carbon released from burning fossil fuels. The development and expansion of eucalypt plantations represents a substantial revolution in pulp and paper manufacturing.

Download Full-text

Genetic diversity of french bean (Phaseolus vulgaris L.) under water stress condition

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v22i1.9073 ◽

2011 ◽

Vol 22 (1) ◽

Author(s):

AK Choudhury ◽

MA Karim ◽

QA Khaliq ◽

MM Haque ◽

JU Ahmed ◽

...

Keyword(s):

Genetic Diversity ◽

Water Stress ◽

Phaseolus Vulgaris ◽

Stress Condition ◽

French Bean ◽

Water Stress Condition

Download Full-text

GENETIC DIVERSITY IN BAMBARA GROUNDNUT (Vigna subterranean) AS REVEALED BY MOLECULAR WEIGHTS OF THE SEEDS’ PROTEINS

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v30i2.35528 ◽

2018 ◽

Vol 30 (2) ◽

pp. 19-28

Author(s):

A. J. Oludare ◽

J. I. Kioko ◽

A. A. Akeem ◽

A. T. Olumide ◽

K. R. Justina ◽

...

Keyword(s):

Genetic Diversity ◽

Seed Proteins ◽

Electrophoretic Analysis ◽

Protein Characterization ◽

Bambara Groundnut ◽

Vigna Subterranea ◽

Phylogenetic Relatedness ◽

Molecular Weights ◽

National Centre ◽

Standard Marker

Nine accessions of Bambara groundnut (Vigna subterranea (L.) Verdc.,syn. Voandzeia subterranea (L.) Thouars ex DC.) obtained from National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Oyo state, were assessed for their genetic and phylogenetic relatedness through electrophoretic analysis of the seed proteins. 0.2g of the seeds were weighed and macerated with mortar and pestle in 0.2M phosphate buffer containing 0.133M of acid (NaH2PO4) and 0.067 of base (Na2HPO4) at pH 6.5. Protein characterization with standard marker revealed that the seeds of the nine accessions contained proteins (B.S.A, Oval Albumin, Pepsinogen, Trypsinogen and Lysozyme) with molecular weights ranging from 66kda and above, 45 – 65 kDa, 44 – 33 kda, 32-24 kDa and 23-14 kDa, respectively. The student T-test revealed that accessions B, C, E, F, H and I have molecular weights not significantly different from one another (P<0.05) while samples A, D and G showed significantly different values (P>0.05). All the accessions had at least two proteins and two major bands in common. The study revealed intra-specific similarities and genetic diversity in protein contents among the nine accessions of Bambara groundnut (Vigna subterraranea (L.) Verdc.syn

Download Full-text

PROFILING OF GUAVA GENOTYPES GROWN IN VIDARBHA CONDITIONS ON THE BASIS OF MORPHOLOGICAL TRAITS

FLORA AND FAUNA ◽

10.33451/florafauna.v23i1pp37-44 ◽

2017 ◽

Vol 23 (1) ◽

Author(s):

R.A. PATIL ◽

S.G. BHARAD ◽

S.N. SAWANT

Keyword(s):

Genetic Diversity ◽

Genetic Variability ◽

Morphological Traits ◽

Considerable Extent ◽

Fruit Traits ◽

Breeding Programmes ◽

Tree Leaf ◽

Qualitative Characteristics ◽

Intrapopulation Diversity

Assessment of genetic diversity in the available germplasm is the prerequisite for development of improved genotypes through planned breeding programmes. In the view of this Forty-eight genotypes of seedling origin guava along with 1 check (L-49/Sardar) collected and conserved at germplasm block, Main Garden, Department of Horticulture, Dr. P. D. A. University, Akola were evaluated for genetic variability and diversity based on the qualitative characteristics. The genotypes were evaluated for sixteen morphological traitsviz. tree, leaf, floral and fruit traits. Results Show considerable extent of variability amongst the 49 genotypes in each traits. A sizeable amount of intrapopulation diversity recorded can be used to identify diverse parents which can be utilized in hybridization programmes.

Download Full-text