The long-term utility of DNA banks is predicated on the stability of DNA during storage. The quality and yield of DNA extracted from seeds from four garden species, which varied in age from 1 to 135 years old, was used to examine the early stages of DNA degradation. Seeds that were 70 years old yielded high molecular weight DNA, which permitted amplification of a 650bp segment of the internal t...

Vaccinium oldhamii Miq. is an edible berry; however, little known about its seed dormancy-break and germination. Therefore, the aim of this study was to elucidate seed-dormancy break germination characteristics V. oldhamii. The results showed that length width seeds were 2.4588 ± 0.0273 mm 1.7028 0.0248 mm, respectively, filled percentage 49.0 3.0%, 1000-seed weight 0.9453 g. Additionally, wate...

The objective of this study was to investigate the effect of pruning in different developmental stages on growth, development, seed yield and active substances of medicinal pumpkin (these active substances are uses for remedy the Benign Prostatic Hyperplasia (BPH)). The experiment was performed in a RCB design. Five pruning treatments in different developmental stages (no pruning, after 3-5 nod...

The objective of this study was to investigate the effect of pruning in different developmental stages on growth, development, seed yield and active substances of medicinal pumpkin (these active substances are uses for remedy the Benign Prostatic Hyperplasia (BPH)). The experiment was performed in a RCB design. Five pruning treatments in different developmental stages (no pruning, after 3-5 nod...

in order to evaluate the physiological indices in relation to the screening of spring safflower genotypes for drought tolerance and productivity, seed and oil yields and yield components were measured for five genotypes including local arak, local esfahan, sina, kh23 – 57 and goldasht. the study was conducted in a loam soil in east azarbaijan, iran, during three successive years (2005-2007)...

Crop yield is the ultimate manifestation of all physiological changes crops and external environmental influence. A controlled study was conducted to investigate effects exogenous gibberellin on morphological characteristics formation sesbania pea grown in saline soils. Seeds were presoaked with four levels Gibberellin (GA3) solutions (0, 202.1, 404.2 606.3 µM) for 6 h, then manually direct-sow...

Seed size and shape, measured as the variance of the three main dimensions, have been proposed as good indicators for predicting seed persistence. We tested whether these variables were robust predictors of seed persistence in the soil for 58 abundant herbaceous species, primarily annuals, in grass and scrubland of central Spain. Seed persistence was estimated from data on germinable seed banks...