High seed vigor is important for agricultural production due to the associated potential for increased growth and productivity. However, a better understanding of the underlying molecular mechanisms is required because the genetic basis for seed vigor remains unknown. We used single-nucleotide polymorphism (SNP) markers to map quantitative trait loci (QTLs) for four seed vigor traits in two con...

. In order to study the variation for seed yield and its components, 200 accessions of alfalfa (Medicago sativa L.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in Kabodarahang Research Station, Hamadan, Iran, during 2010 to 2011. Data were analyzed for descriptive statistics, correlation, regressio...

New Zealand Journal of Ecology (1997) 21(2): 141-152 ©New Zealand Ecological Society spp.), and rats (Rattus spp.), may also be contributing to the decline of kaka by reducing the birds’ productivity (Beggs and Wilson, 1991). A significant competitive interaction with possums is suggested by the fact that kaka remain common in the South Island only where possum densities are relatively low (O’D...

this study was carried out in order to identify the effects of soil water depletion (swd) on monogerm sugar beet (cv. shirin) seed growth trend at different growth stages. an experiment was conducted in randomized complete block design (rcbd) with three replications in ardebil agricultural research station. during 2002 and 2003 cropping seasons, nine treatments including control (irrigation aft...

. in order to study the variation for seed yield and its components, 200 accessions of alfalfa (medicago sativa l.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in kabodarahang research station, hamadan, iran, during 2010 to 2011. data were analyzed for descriptive statistics, correlation, regressio...

in order to study the effect of deficit irrigation at reproductive growth stages on growth and grain yield of four sunflower cultivars namely: azargol, allstare, alison and euroflor, an experiment was conducted during the 2007 growing season at the experimental field of the agricultural faculty of bu-ali sina university. the experimental design was a split plot one, based upon a randomized comp...

Elevated carbon dioxide (eCO2) often enhances plant photosynthesis, growth, and productivity. However, under nutrient-limited conditions the beneficial effects of high CO2 are often diminished. To evaluate the combined effects of potassium (K) deficiency and eCO2 on soybean photosynthesis, growth, biomass partitioning, and yields, plants were grown under controlled environment conditions with a...

Lodging is a significant risk in intense cereal production and may severely reduce seed yield and quality. Lodging is strongly influenced by cultivar and husbandry factors including sowing date, seed rate, drilling depth and rate of nitrogen application. A number of PGRs are known that reduce stem length, thereby lowering the leverage of the ear and other parts of the shoot. Increased stem stab...

drought causes significant reductions in crop productivity in many parts of the world, including iran. identifying genotypes tolerant to drought stress is therefore one of the foremost goals of crop breeding programs. this study investigated the effect of terminal drought stress on yield and yield components of new winter rapeseed lines, and identified new winter rapeseed lines tolerant to term...

Meadowfoam (Limnanthes alba Benth., Limnanthaceae) produces a very-long chain seed oil with novel physical and chemical characteristics (Earle et al. 1959; Smith et al. 1960; Bagby et al. 1961; Miller et al. 1964; Isbell 1997). These characteristics have propelled the development of meadowfoam as a specialty oilseed crop and the development of industrial markets for meadowfoam oil and oil deriv...