October 2011
Studies on genetic architecture of biparental progenies for important yield attributes in rice (Oryza sativa L.)
An experiment was conducted to develop and evaluate the biparental progenies (BIPs) for important yield component traits in three rice cross combinations, namely, JGL 384 × Rasi (Cross I), KJTCMS 5B × IR 64 (Cross II), WGL 14 × Rasi (Cross III). Genetic analysis of biparental progenies revealed that, the traits, namely, days to 50% flowering, plant height and number of productive tillers per...
October 2011
Bio-economic assessment of chemical and non-chemical weed management strategies in dry seeded fine rice (Oryza sativa L.)
Dry seeding of rice offers potential to be opted as a resource conservation technology but its sustainability is endangered by heavy weed infestation. Experiments were conducted during summer season of 2009 to look for effective and economically viable weed control method(s) in dry seeded rice. Four mulching materials of natural origin as sorghum, sunflower and wheat residues each soil incorporated at 8 t...
October 2011
Variation and association among characters genetically related to yield and yield stability in Coffea canephora genotypes
Water deficit stress is a main factor determining yield and yield stability in Robusta coffee (Coffea canephora P.). Studies were conducted to identify agronomic traits that offer genetic sources of drought tolerance associated with yields and yield stability. In a nine-year experiment, 18 genotypes were assessed for mean value and variation in three diverse environments, for nine vegetative traits, five...
October 2011
The effect of different nutrient solutions on some growth indices of greenhouse cucumber in soilless culture
Today, greenhouse cultivation of vegetables, especially cucumber in soilless culture has been developed in different parts of the world. Soilless culture creates the possibility that farmers in a shorter time with less effort produce more yield. This research was done in the greenhouses center in Islamic Azad University of Khorasgan with three kinds of nutrient solutions and so completely randomized...
October 2011
Genetic diversity and inbreeder specie of Andrographis paniculata (Burm. f.) Nees by randomly amplified polymorphic deoxyribonucleic acid (RAPD) and floral architecture analysis
“Fha-Tha-Laai-Joan” (Andrographis paniculata (Burm. f.) Nees) is a medicinal plant that is, widely used in Thailand and some other countries for therapeutic value, but the lack of their genetic information may cause confusion in its utilization. The randomly amplified polymorphic DNA (RAPD) markers were used to identify and elucidate the phylogenetic relationships among 58 accessions...
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