Understanding variation in SW (seed weigh) is of major importance in understanding SY (seed yield) variation. The objective of this study was to determine factors such as SN (seed number) per unit area, SFD (seed filling duration) and SFR (seed filling rate) and temperature, LAI (leaf area index), LAD (leaf area duration), above-ground dry matter, CGR (crop growth rate), leaf dry matter re...

BACKGROUND Phenotypic plasticity of fitness-related traits is vital for plant species to adapt to variable environments. Chenopodium glaucum L. and Amaranthus retroflexus L. are two common weed species globally. Understanding the plasticity in life-history traits, especially in reproductive allocation, within and among these species is important for predicting their success and for managing the...

in order to investigate the effects of on-farm seed priming and sowing dates on seedling emergence, yield and yield components of a local genotype bean called pach baghala-red strain (phaseolous vulgaris l.) as a double crop after rice, an experiment carried out in the rice research institute of rasht. experimental design was laid out in a split plot based on a randomized complete block with th...

Quantifying the relative importance of the multiple processes that limit recruitment may hold the key to understanding tropical tree diversity. Here we couple theoretical models with a large-scale, multi-species seed-sowing experiment to assess the degree to which seed and establishment limitation shape patterns of tropical tree seedling recruitment in a central African forest. Of five randomly...

This study evaluated the effect of storage and sowing conditions on seed germination of Styrax japonicus Sieb. et. Zucc, an ornamental tree with seeds that exhibit double dormancy. The germination of freshly harvested seeds was compared with seeds that had been stored dry at 20 C for a year before sowing. After sowing, potted seeds were placed in an air-refrigerated greenhouse maintained 18.5/1...

in order to find out suitable organic fertilizers for elimination of chemical fertilizers usage and the optimum sowing date in pot marigold cultivation, an experiment was conducted in the agricultural research station, ferdowsi university of mashhad, iran, in 2007 growing season. for this purpose a split plot experiment based on completely randomized block design with three replications was use...

Schizolobium parahyba var. amazonicum (Huber ex Ducke) occurs naturally in the Brazilian Amazon. Currently, it is being planted extensively because of its fast growth and excellent use in forestry. Consequently, there is great interest in new strategies to increase wood production. The interaction between soil microorganisms and plants, specifically in the roots, provides essential nutrients fo...

Sorghum (Sorghum bicolor L. Moench) grown in semiarid regions is often exposed to short periods of high-temperature (HT) stress during reproductive development. Objectives of this research were (i) to quantify the effects of short episodes of HT stress during reproductive development on physiological, growth, and yield processes of grain sorghum and (ii) to identify the stage(s) most sensitive ...

To illustrate the advantages of germinating Oenothera seeds under experimental conditions over the old practice of sowing upon earth I will give the results for a problem as attacked under the old and new method. In 1914 I germinated on earth seeds from an F1 hybrid plant, 13.35ac, of the cross 0. franciscana X 0. biennis. A sowing of 819 seed-like suctures produced a culture of 402 seedlings, ...