Head cabbage androgenic genotypes of R1 and R2 generations derived from Jaguar F1 donor hybrid were evaluated according to their agroeconomical characters, ability for generative propagation, self-incompatibility, intraline uniformity and stability of morphological characters. Most of R1 and R2 genotypes had desired morphological characters. However, in R1 generation 21 lines showed lack of int...

Pistachio is one of the most important horticultural crops in Iran.  There is a unique role for amino acids in the plant response to stressful conditions, and special physiological role for Arginine (Arg) compared to other amino acids.  The effects of this compound were investigated on vegetative and reproductive characters of bearing pistachio trees of ‘Ahmad-Aghaei’. The experiments were done...

A taxonomic review of Dendrophthora brachyclada, D. cupressoides, marmeladensis, moniliformis, picotensis and podocarpicola in Cuba was conducted through the direct comparison measurement vegetative reproductive characters, considering geographical, ecological altitudinal distributions host trees. The most important morphological characters found to separate species are discussed, an identifica...

Noticeable variation was observed in a number of morphological characters in the Glycyrrhiza specimens in various habitats in north of Iran. To study these variations, two taxa related to the Hyrcanian region from all four known taxa of this genus in Iran, including Glycyrrhiza echinata, and G. glabra var. glabra were studied by numerical taxonomy using morphological characters in three provinc...

Morphological, numerical and chemical taxonomy of the genus Crataegus was studied in the East and northeast of Iran. More than 80 fresh specimens as well as 50 herbarium specimens from different localities were examind. Using vegetative and reproductive morphological characters an identification key is provided for all taxa. For numerical taxonomy 85 morphological characters were measured and t...

Nearly forty years ago R. L. Berg proposed that plants with specialized pollination ecology evolve genetic and developmental systems that decouple floral morphology from phenotypic variation in vegetative traits. These species evolve separate floral and vegetative trait clusters, or as she termed them, "correlation pleiades." The predictions of this hypothesis have been generally supported, but...

The evaluation of varieties for a particular region is an important process in order to screen the potential cultivars any specific or climate. Although may express unique behaviour under certain area, but it fail sustain that peculiar character when grown different location. Along with varieties, planting time significantly affect crop production. Therefore, standardization very get good growt...

Analysis of samples of the 0 to 10-cm soil depth collected at 65 locations under six vegetation communities snowed that prairie and cedar-hardwood communities occurred on calcareous (range, pH 6.97.9) soils with low silt concentrations (20-54%), and that pine and oak communities occurred on acid (pH 4.36.3) soils with high silt (54-80%); this represented a distinction between communities on soi...

Drought limits light harvesting, resulting in lower plant growth and reproduction. One trait important for plant drought response is water-use efficiency (WUE). We investigated (1) how the joint genetic architecture of WUE, reproductive characters, and vegetative traits changed across drought and well-watered conditions, (2) whether traits with distinct developmental bases (e.g. leaf gas exchan...