Wind lodging-associated yield loss is reduced by wheat genetic diversity

This investigation evaluates how higher reaction temperatures or oxidant reinforcement of caustic extraction affects chlorine dioxide consumption during elemental chlorine-free bleaching of North American hardwood pulps. Bleaching data from the published literature were used to develop statistical response surface models for chlorine dioxide delignification and brightening sequences for a variety of hardwood pulps. The effects of higher (EO) temperature and of peroxide reinforcement were estimated from observations reported in the literature. The addition of peroxide to an (EO) stage roughly displaces 0.6 to 1.2 kg chlorine dioxide per kilogram peroxide used in elemental chlorine-free (ECF) bleach sequences. Increasing the (EO) temperature by Δ20°C (e.g., 70°C to 90°C) lowers the overall chlorine dioxide demand by 0.4 to 1.5 kg. Unlike what is observed for ECF softwood bleaching, the presented findings suggest that hot oxidant-reinforced extraction stages result in somewhat higher bleaching costs when compared to milder alkaline extraction stages for hardwoods. The substitution of an (EOP) in place of (EO) resulted in small changes to the overall bleaching cost. The models employed in this study did not take into account pulp bleaching shrinkage (yield loss), to simplify the calculations.

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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

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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

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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.

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