December 2011
Innovations in resource management for sustainable rice based farming
Agricultural practice cannot be sustainable unless and until it is improving or at least conserving the natural resource base. There is need for a shift in outlook of viewing only the immediate benefits of farming practices. Rather, farming practices should be judged in terms of its effects on natural resources and environment, besides benefits in terms of yield and quality. Some ways and means of managing external...
December 2011
Response of Ethiopian durum wheat genotypes to water deficit induced at various growth stages
Understanding the effect of water stress on yield and its components is the essential step in developing of high yielding and stable genotypes. Substantial reduction in grain yield can be caused by water deficit depending on the intensity, duration and the developmental stage at which water stress occurred. An experiment was conducted in the lathouse at Sinana Agricultural Research Center in...
December 2011
Yield potential evaluation and path analysis of different sesame genotypes under various levels of iron
In order to evaluate yield potential of different genotypes of sesame under different levels of iron micronutrient and determinate the most effective traits on the yield, the experiment was carried out as split plot based on randomized complete block design at Jiroft during 2008. Treatments consisted of three levels of Fe fertilizer (chalet 138) (0, 5 and 10 kg/ha) as the main factor and different genotypes of sesame...
December 2011
Sunflower seed invigoration by chemical manipulation
Sunflower (Helianthus annuus L. cv. Morden) seeds lose viability at a rapid pace under accelerated ageing (AA) condition. Pretreatment of the seeds with salicylic acid and ascorbic acid for 8 h before imposition of accelerated ageing treatment in desiccator (99.1% RH and 32 ± 2°C) or continuous treatment of the seeds with Eucalyptus oil vapour for 60 days in a separate desiccator under the same...
December 2011
Effect of storage temperature and packaging materials on seed germination and seed-borne fungi of sorghum (Sorghum bicolor (L.) Moench.) in South West Nigeria
A laboratory experiment was conducted at Ibadan, Nigeria to determine the effect of storage temperature and packaging materials on the germination and associated seed-borne fungi of two accessions of sorghum seed (NG/SA/07/0194 and NGB/08/0270). The seeds were stored at three different storage temperature (gene bank temperature -5°C), freezing temperature (-20 ± 2°C) and ambient temperature (25 ±...
December 2011
Interaction between maize phenology and transgenic maize hybrids on stalk rots following European corn borer infestation
Field studies were carried out at Hoytville and Wooster, Ohio, USA from 2006 to 2008 to determine the influence of planting date and transgenic Bt maize on incidence and severity of stalk rots of maize. Transgenic and non-transgenic Bt maize hybrids with different maturity ratings were planted on late April/early May, mid-May and early June each year. The incidence and severity of the maize stalk rot complex were...
December 2011
Volatile constituents of essential oils isolated from different parts of Alpinia calcarata Rosc
The essential oils isolated from different parts of Alpinia calcarata Rosc. growing in Chittagong, Bangladesh, were analyzed by gas chromatography-mass spectrometry (GC-MS). The leaf oil contained 1,8-cineole (28.48%) and camphor (21.40%) as the major constituents. The stem sheath oil had fenchyl acetate (19.16%) and carotol (16.77%) as the major compounds. On the other hand, the root oil...
December 2011
Effect of calcium, magnesium, sodium and potassium on farm plantations of various agroeclogical zones of Punjab, Pakistan
The immense impact of trees in the development of a country cannot be denied and over-emphasized. Pakistan has a narrow forest resource base extending over only about 4.8% (4.59% excluding farmland plantations) of its area, which is insufficient to provide the material needs for the growing population, expanding and to retard and arrest the ongoing environmental and ecological degradation process. Based on...
December 2011
Appraisal of methods for assessing black Sigatoka resistance in diploid banana populations
Three black Sigatoka assessment protocols, (i) assessing disease severity 6 months after planting, (ii) estimating disease development over time in the different accessions, and (iii) assessing the youngest leaf spotted (YLS) at flowering were appraised. The assessment was implemented on 18 diploid accessions together with susceptible and resistant checks, planted in a 4 × 5 rectangular lattice design with two...
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