Open Access Short Research Article

Evaluation of Groundnut Genotypes for Agronomic and Seed Quality Traits

Anjana Satheesh Chandran, Prashant Kumar Rai, Gabrial M. Lal, Rupesh Kumar, Bakheru Yadav

International Journal of Plant & Soil Science, Page 1-7
DOI: 10.9734/IJPSS/2016/28193

An experiment was oversaw to assess agronomic and seed quality traits in 11 Groundnut genotypes along with one check (K 6) at Department of Genetics and Plant Breeding, Sam Higginbottom Institute of Agriculture, Technology and Sciences (SHIATS), Allahabad, Uttar Pradesh during kharif season (2015). The genotypes were sown at field experimentation center in three replications adopting randomized block design to evaluate agronomic and seed quality traits. The analysis of variance for 17 parameters revealed that significant differences were observed for all the characters except pod width among the genotypes On the basis of mean performance, genotype ICG 15309 revealed best performance in primary branches/ plant, pods per plant, pod yield/plant, seed yield/plant while ICG 4598 recorded highest 100 kernel weight (47.15 gm).The genotype ICG 1399 (117.5) and ICG 14008 (117.67) were earliest in days to maturity.

 

Open Access Original Research Article

Germination and Growth of the Invasive Weeds Bidens pilosa and Digitaria insularis Regulated by Novel Kaurane Diterpene Amides

Rondinelle Gomes Pereira, Maria Amélia Diamantino Boaventura, Queila Souza Garcia, Bárbara Castro Vieira

International Journal of Plant & Soil Science, Page 1-11
DOI: 10.9734/IJPSS/2016/28048

Novel kaurane ditepene monoamides were synthesized with good yields, directly from unprotected symmetrical aliphatic and aromatic diamines, hydroxylamines, dichlorophenylamines and ent-kaurenoic acid (1), using a modified protocol for monoacylation. These amides were tested against seed germination and growth of radicle and shoot of the weeds Bidens pilosa (Asteraceae), and Digitaria insularis (Poaceae). The concentrations used were 1.0 mM, 100.0, 10.0, and 1.0 mM. Propanil, the commercial herbicide, was used as internal reference. Monoamides from symmetrical aliphatic diamines were the most actives. Their log P (3.66-4.20) were closer to the value of 4.15, appropriate for herbicides. They were, in some cases, at the lower concentrations, more active  than propanil. Generally, inhibitory effects were more significant on B. pilosa than on  D. insularis.

Monomide from ethylenediamine gave the best dose / response for inhibition growth of radicle and shoot  of B. pilosa, with I50  3.25 and 16.3 mM, respectively.

Open Access Original Research Article

Varietal Performance of Napier Fodder (Pennisetum purpureum) Influenced by Nitrogen Fertilizer under Mango Based Agroforestry System

M. H. Rahman, M. M. Rahman, M. S. Bari, M. R. Islam, M. A. Quraishy

International Journal of Plant & Soil Science, Page 1-6
DOI: 10.9734/IJPSS/2016/29052

Aims: To observe the varietal performance of Napier fodder influenced by nitrogen fertilizer application under mango tree based agroforestry system.

Study Design: The experiment was consisted of two factors RCBD with three replications.

Place and Duration of Study: The experiment was carried out at the Agroforestry and Environment Research Farm, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during June 2014 to December 2014.

Methodology: Among the two factors, one factor like A was three Napier variety viz. V1= Bazra, V2= Arusha and V3= Hybrid; another factor B was three nitrogen fertilizer dozes viz. N1=150 kg/ha, N2= 100 kg/ha and N3= 50 kg/ha. So, there were nine treatment combinations; V11 = Bazra + 150 kg/ ha, V1N2 = bazra + 100 kg/ha, V1N3= bazra + 50 kg/ha, V21= Arusha + 150 kg/ha, V2N= Arusha + 100 kg/ha, V2N3= Arusha + 50 kg/ha, V3N1 = Hybrid + 150 kg/ha, V3N2 = Hybrid + 100 kg/ha and V3N3 = Hybrid + 50 kg/ha.

Results: The experimental results revealed that the growth, yield and yield contributing character of Napier were varied significantly due to varietal  effect and different nitrogen doses and also for their interaction at different DAP and different harvesting time. The tallest plant of Napier grass (146.20 cm, 200.00 cm and 228.40 cm) was recorded from V1N3 (Bazra + 150 kg/ha N) treatment and the dwarf plant (113.20, 167.10 cm and 197.40 cm) was recorded from V3N1 (Hybrid + 50 kg/ha N) treatment at 30, 60 and 90 DAP, respectively.  Similarly the highest yield (13.40, 14.14 and 14.15 ton/ha) was recorded from V1N3 (Bazra + 150 kg/ha N) treatment where as the lowest (5.20, 5.80 and 5.90 t/ha) was recorded from V3N1 (Hybrid + 50 kg/ha N) treatment at 1st, 2nd and 3rd harvest, respectively. Therefore, the suitability of Napier production with different doses of nitrogen fertilizer under mango based agroforestry system may be ranked as V1N1> V2N1> V3N1> V1N2> V2N2> V3N2> V1N3> V2N3> V3N3.

Conclusion: It may be decided that the cultivation of Bazra Napier variety with 150 kg urea under the floor of mango orchard provide higher yield of Napier fodder.

Open Access Original Research Article

Yield and Nutritional Quality of Tomato as Affected by Chemical Fertilizer and Biogas Plant Residues

M. G. Kibria, M. Islam, M. Alamgir

International Journal of Plant & Soil Science, Page 1-10
DOI: 10.9734/IJPSS/2016/29434

A field experiment was conducted to study the effects of biogas plant residues (BPR) and NPK fertilizer on growth, yield and quality of tomato (Lycopersicon esculentum). The treatments were arranged in randomized block design with three replications. The results showed that application of BPR and NPK fertilizers significantly influenced the growth and yield of tomato compared to control treatment. BPR @ 50 t/ha produced the highest shoot and root dry weight and plant height at 30 and 45 days after transplantation (DAT). The highest number of fruits per plant, weight of fruits per plant and yield (t/ha) were also found with the same treatment. Application of inorganic fertilizer produced statistically similar number fruits per plant, weight of fruits per plant and yield (t/ha) to those found with BPR from 10 to 40 t/ha. There was no significant variation in single fruit of tomato among the treatments. Mineral nutrient content of tomato were not significantly affected by application of fertilizer and BPR except nitrogen in the fruit tissues. Protein content was decreased but lycopene content was increased by higher rates of BPR compared to control. BPR @ 20 t/ha has been suggested as an alternative to recommended level of chemical fertilizer in ensuring good performance in terms of yield and quality of tomato compared to other treatments in valley soils of Chittagong University campus in Bangladesh.

 

Open Access Original Research Article

Do Coastal Forests of Tanzania have the Potential to Undergo Natural Vegetation Restoration?

N. E. Pima, L. Mbwambo, J. Maguzu, N. Byakugila

International Journal of Plant & Soil Science, Page 1-9
DOI: 10.9734/IJPSS/2016/29541

Aim: To determine soil seed bank as a basis for forest restoration through natural regeneration in the Zaraninge and Mbwebwe coastal forests in Bagamoyo District Tanzania.

Study Design: Temporary concentric sample plots of size 0.07 ha established systematically along transect lines that run parallel to each other was used. The sampling intensity was 0.02%. The distance between plots was 100 m and between transect lines was 200 m.

Place of the Study: Soil samples were collected at Zaraninge and Mbwebwe coastal forests in Bagamoyo District Tanzania.

Methodology: Eighteen sample plots of size 0.07 were established systematically along transect lines on each of the two forests to cover as much variations as possible. Soil samples were collected within each plot at 0-10 cm, 10-20 cm and 20-30 cm depths. Soil sample were analyzed for frequency of germination and seed density of different plant species at the different depths.

Results: The seed bank density for vascular plants was 2,782 seeds m-2 and 1,170 seeds m-2 for Zaraninge and Mbwebwe forest respectively. A total of 71 seedlings belonging to 17 species and 10 families emerged from all samples of the two forests, most of them being herbs and grasses. The number of germinants decreased with increasing soil depth in both forests as most seeds germinating from the 0-10 cm soil depth and least 10 germinants in 20-30 cm stratum.

Conclusion: Forest restoration through natural soil seed bank may greatly depend on the seed bank at the surface soil horizons.

Open Access Original Research Article

Performance of Rice Landraces under Salt Stress at the Reproductive Stage Using SSR Markers

Md. Abdullah Al Ibrahim, Md. Hasanuzzaman Rani, Shamsun Nahar Begum, Md. Babul Akter, Mirza Mofazzal Islam

International Journal of Plant & Soil Science, Page 1-11
DOI: 10.9734/IJPSS/2016/27851

Salinity is the most significant cause of rice yield reduction in many rice-growing areas of the world. The aim of this study was to screen 24 rice genotypes including 20 landraces to find the potential germplasm source for salt tolerance in breeding program. Screening was performed at reproductive stage based on the yield and yield attributes in sustained water bath maintaining the salinity level at 8 dS/m. Three microsatellite markers linked with salt tolerance quantitative trait loci viz. RM234, RM134 and RM9 were used for investigation of salt tolerant rice landraces. At the reproductive stage, four landraces viz. Kute Patnai, Kashrail, Bazra Muri and Tal Mugur were identified as salt tolerant on the basis of phenotypic evaluation. Besides, eight rice genotypes viz Binadhan-8, Patnai, KutePatnai, Bazra Muri, Tal Mugur, Pokkali, Kashrail and FL 378 were found as salt tolerant using SSR marker. Considering both assessment, four rice genotypes viz. Kute Patnai, Kashrail, Bazra Muri and Tal Mugur were selected as true salt tolerant lines. Therefore, these identified landraces could be potential germplasm sources for future salt tolerance rice breeding program.