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Genetic Variability Studies in Segregating Generation of Gossypium barbadense lines in cotton

The research work comprising of genetic variability, heritability and genetic advance study for seed cotton yield and its components in segregating F 5 generation of cotton ( Gossypium Barbadense L.) was carried out during 2011 at the Main Agricultural Research Station, University of Agricultu... (28 Jun., 2013)

Association Analysis for Yield and its Component Traits in F₃ and F₄ Populations of Pigeonpea (Cajanus cajan (L.) mill Sp.)

An investigation was carried out in pigeon pea to understand the association among the yield components and their direct and indirect effects on the seed yield. Character association studies indicated that days to maturity, number of seeds per plant, number of pods per plant, test weight (gm), se... (25 Jun., 2013)

Genetic Diversity Studies in Ragi [Eleusine coracana (L.) Gaertn.] With SSR and ISSR Mrkers

Investigation was carried out on a collection of forty ragi genotypes to study the genetic diversity using ten SSR and 30 ISSR markers. There were successful amplification SSR and ISSR markers in ragi. Of the ten SSR primers six showed polymorphism, the number of alleles produced by SSR primers r... (31 May, 2013)

Impact of Colchicine Treatment on Sorghum bicolor BTÃ—623

Colchicine is an alkaloid from Colchicum autumnale, which is widely used for the induction of polyploidy plants. No highly efficient method has been reported for the development of polyploidy plants in the grain sorghum BT × 623. In this study, the sorghum seeds were treated with colchicine... (23 May, 2013)

Impact of Water Deficit on Photosynthetic Pigments and Yield of Banana Cultivars and Hybrids

A field experiment was carried out to investigate the effect of water deficit on total chlorophyll content, soluble protein content and yield of banana cultivars and hybrids. Stress was imposed at different critical stages viz., 3 rd , 5 th , 7 th and 9 th month after planting. The stress was g... (24 Mar., 2013)

Histological and Biochemical Changes in Aegle marmelos Corr. before and after Acclimatization

Maximum mortality of micropropagated plants occur during acclimatization phase because plantlets undergo rapid and extreme changes in physiological functioning, histological and biochemical changes. In order to investigate the actual reason of this limitation, test samples were collected at diffe... (27 Apr., 2013)

Interrelationship, direct and indirect Effect of different Component Characters on Grain Yield in Amaranth Genotypes (Amaranthus hypochondriacus) under Varied Plant Densities

In grain amaranthus ( Amaranthus hypochondriacus L.) ten genotypes were evaluated for twelve characters under four plant density levels viz., very high (D 1 ), high (D 2 ), normal (D 3 ) and low plant density (D 4 ) levels to study the relationship of different characters on yield and thei... (28 May, 2013)

Genetic Variability Studies in Segregating Generation of Upland Cotton (Gossypium hirsutum L.)

The research work comprising of genetic variability, heritability and genetic advance study for seed cotton yield and its components in segregating F 2 generation of cotton ( Gossypium hirsutum L.) was carried out during 2011 at the Main Agricultural Research Station, University of Agricultural... (18 Feb., 2013)

Molecular Cloning and Characterization of the GoMADS-box2 Gene from Guzmania Ruiz & Pav

The MADS-box gene plays a crucial role in the formation of the floral meristem, development of floral organs and florescence regulation in plants. Based on a full-length cDNA library of floral organs and bracts in ostara , a Guzmania cultivar, four EST sequences from the same contig that incl... (24 Dec., 2012)

A cDNA-AFLP Based Linkage Map Constructed with 67 Loci in F₂ Population of Caixin (Brassica rapa var. parachinensis)

A cDNA-AFLP based linkage map of Caixin ( Brassica rapa var. parachinensis ) was constructed by an F 2 population with 92 individuals from a cross of the parents of early flowering and late flowering Caixin. The fifteen selective primers generated total 229 bands with the average of 15.3... (15 Nov., 2012)

Mutagenic Effects of Maize Inbred Line Irradiated by Heavy Ion ⁷Li

The dry seeds of maize inbred line Yong 19 were radiated by 7 Li heavy ion with the energy 43MeV and the doses were treated with 10 Gy, 20 Gy, 30 Gy, 40 Gy, and 50 Gy, respectively. The field data for plant height and ear position of maize inbred line induced by heavy ion from M 1 (... (31 Oct., 2012)

A High Efficiency Regeneration System of Oriental Lily Cultivar

An efficient in vitro protocol for micropropagation of Oriental lily cultivar ‘Constanta’ has been established. Adventitious buds were induced from bulblet-scale thin cell layers cultured on MS medium supplemented with cytokinin and auxin. The effect of 6-BA and TDZ on adventitious ... (26 Sep., 2012)

Analysis of QTL for Three Leaf Traits in Phalaenopsis based on AFLP Molecular Genetic Map

In this research, we employed a hybrid population between ‘ Phal.462 ’ and ‘ Phal.20 ’as the tested materials to evaluate the leaf length (LL), leaf width (LW), plant width (PW) of 88 individual Phalaenopsis progenies. These 3 traits of the progenies showed continuous no... (27 Jun., 2012)

Validation of SalTol Linked Markers and Haplotype Diversity on Chromosome 1 of Rice

To determine the usefulness of SSR markers associated with a major QTL for salinity tolerance designated as " SalTol" collection of 115 diverse rice genotypes was phenotyped and genotyped using tightly linked DNA markers. These markers include five SSRs, RM1287, RM8094, RM3412, RM493 a... (29 Jun., 2012)

Optimization of Minimal Inhibitory Dose of Selective Agent (Basta) for Selection of Transgenics in Sugarcane

Success rate in the selection of putative transformants is mainly dependent upon the dose rate of selective agent. Selection pressure determines the survival frequency of transformant and non transformant cells. Dose of selective agent, which is lethal for the non transformants, would be the opti... (30 Apr., 2012)

Over Expression of Chitinase and Chitosanase Genes from Trichoderma harzianum under Constitutive and Inducible Promoters in order to Increase Disease Resistance in Wheat (Triticum aestivum L)

Powdery mildew of wheat, caused by Erysiphe graminis f.sp. tritici is a serious threat to wheat grain production in many parts of the world. Efforts have been made to engineer resistance into wheat using single gene technology which culminated in the improved resistance efficiency but never... (30 Apr., 2012)

Molecular Cloning of Promoter of AP3 Gene from Arabidopsis thaliana Ecotype (Col) and Construction of the Plant Expression Vector

Belonging to MADS-Box gene family, APETALA3 ( AP3 ) gene of Arabidopsis floral organ class B is expressed in petals and stamens specifically. AP3 gene which encodes a transcription factor controls the development of petals and stamens of dicotyledons by cooperation with class A and class... (01 Mar., 2012)

A Meta-Analysis of EST-SSR Sequences in the Genomes of Pine, Poplar and Eucalyptus

Microsatellites are the kinds of sequences in the genome of living organism that have the fastest variation frequency. The variations of numbers of microsatellite repeat units in the structure gene cause frame-shift mutation of the gene, resulting in gene expressing in fully difference or express... (01 Feb., 2012)

Effect of Ca²⁺ Regulators on the CaM Gene Expression in Guzmania â€˜Amaranthâ€™ during Flower Induction by Ethylene

Since 1930s, the technology of flowering induction by ethylene in bromeliads has begun to be used in production. So far, it is still effectively used in bromeliads flowering induction. However, There is little clear on the mechanism of ethylene flowering induction. In order to clarify the role of... (01 Mar., 2012)

Studies on Salt Tolerance of Transgenic Sweetpotato Which Harbors Two Genes Expressing CuZn Superoxide Dismutase and Ascorbate Peroxidase with the Stress-inducible SWPA2 Promoter

In this study, some physiological indexes of leaves in transgenic sweetpotato ( Ipomoea batatas L. cv. Yulmi), which harbors two genes CuZn superoxide dismutase (CuZnSOD) and ascorbate peroxidase (APX) genes, with the stress-inducible SWPA2 promoter were evaluated under different concentrations ... (07 Dec., 2011)