Expression directed by the 1.1-kb snapdragon chalcone synthase (CHS) promoter linked to the [beta]-glucuronidase reporter gene has been studied in transgenic tobacco. The pattern of expression of the chimeric gene was compared with the expression of the endogenous CHS genes in tobacco and snapdragon. We demonstrate that expression of the CHS promoter is controlled in both an organ-specific and ...

In habitats where resource availability declines during the growing season, selection may favor early-flowering individuals. Under such ephemerally favorable conditions, late-blooming species (and individuals) may be particularly vulnerable to resource limitation of seed production. In California, a region prone to seasonal drought, members of the annual genus Clarkia are among the last to flow...

OBJECTIVES Alcea hyrcana Grossh (A. hyrcana Grossh) (malvacea), is native to northern of Iran. Many of the plants belonging to the genus Alcea are known to possess ethnomedical and biological properties. In this study, antioxidant activities of methanolic extracts of flower, seed and leaves of Alcea hyrcana Grossh were evaluated by various antioxidant assays. MATERIAL AND METHODS 1,1-diphenyl...

Despite extensive study of pollination and plant reproduction on the one hand, and of plant demography on the other, we know remarkably little about links between seed production in successive generations, and hence about long-term population consequences of variation in pollination success. We bridged this "generation gap" in Ipomopsis aggregata, a long-lived semelparous wildflower that is pol...

Sunflowers are one of the flowers chosen by many localities to grow because they both create beautiful landscapes and also a source raw materials for oil from seeds. This study aims determine planting density amount fertilizers being suitable growing, well-developed, high-yielding in Thua Thien Hue province. Research results shown that fertilization did not significantly affect germination rate...

Flowering synchrony is essential for plant reproductive success, especially in the case of small-sized populations of self-incompatible species. Closely related to synchrony, flowering intensity influences pollinator attraction and pollinator movements. Thus, a high flowering intensity may increase pollinator attraction but, at the same time, may also increase the probability of geitonogamous p...

Real-time quantitative PCR (RT-qPCR) is a reliable and widely used method for gene expression analysis. The accuracy of the determination of a target gene expression level by RT-qPCR demands the use of appropriate reference genes to normalize the mRNA levels among different samples. However, suitable reference genes for RT-qPCR have not been identified in Sacha inchi (Plukenetia volubilis), a p...

abstract- to investigate the effect of draught stress on water relations, stomatal density, chlorophyll content and yield of rapeseed, an experiment was done with four levels of drought stress including l1 (field capacity, fc), l2 (70% available water content, awc), l3 (50% awc), and l4 (30% awc), within three growth stages- including stem elongation (t1), onset of flowering (t2) and silique fo...

The horticultural sector is growing and the need for its products also increasing, including green beans, but availability limited by land conditions that are poor in organic matter, so it needs to be treated with addition of fertilizers such as vermicompost. This study aims determine effect vermicompost obtain best dose growth production mung bean (Vigna radiata L.). was conducted using a fact...

Modification of the content of secondary metabolites opens the possibility of obtaining vegetables enriched in these compounds related to plant defense and human health. We report the first results of a divergent selection for glucosinolate (GSL) content of the three major GSL in leaves: sinigrin (SIN), glucoiberin (GIB), and glucobrassicin (GBS) in order to develop six kale genotypes (Brassica...