Solanum melongena is susceptible to diverse diseases and parasites, in particular the wilts (bacterial, Fusarium Verticillium), nematodes, some insects. torvum robust Verticillium bacterial root-knot nematode. It was reported that interspecific hybrid plants originated out of hybridization these species were sterile. In our previous studies have been carried overcome this barrier, only from Fas...

BACKGROUND AND AIMS Seed yield and dormancy status are key components of species fitness that are influenced by the maternal environment, in particular temperature. Responses to environmental conditions can differ between ecotypes of the same species. Therefore, to investigate the effect of maternal environment on seed production, this study compared two contrasting Arabidopsis thaliana ecotype...

average and record yields. Those crops having marketable vegetative structures exhibited approximately threeCrops with economically valuable reproductive structures show fold reductions in yield (Boyer, 1982). These data sugthe greatest negative discrepancy between average and record yields. gest that plants have high productivity potential but are To alleviate environmental stress–related yiel...

Mutations that alter the morphology of floral displays (e.g., flower size) or plant development can change multiple functions simultaneously, such as pollen export and selfing rate. Given the effect of these various traits on fitness, pleiotropy may alter the evolution of both mating systems and floral displays, two characters with high diversity among angiosperms. The influence of viability se...

Inbreeding in plants typically reduces individual fitness but may also alter ecological interactions. This study examined the effect of inbreeding in the mixed-mating annual Mimulus guttatus on visitation by pollinators (Bombus impatiens) in greenhouse experiments. Previous studies of M. guttatus have shown that inbreeding reduced corolla size, flower number, and pollen quantity and quality. Us...

Schima superba Gardn. et Champ. is a perennial, evergreen tree valued for its eco-protection and commercial values in China. In this study, we investigate the breeding system, reproductive ecology and pollination biology of S. superba in a seed orchard. The flowers are hermaphrodite and protogynous. The viability of the pollen is inactivated rapidly, and the stigma maintains a high receptivity ...

Clerodendrum colebrookianum Walp. and infortunatum L. are well known for their medicinal uses in treating various human ailments traditionally. Pollen biology study was done both plant species to decipher pollen viability, vitro germination, storage varied temperature conditions. viability tests by 2, 3, 5-triphenyl tetrazolium chloride (TTC test) which grains were collected at the anthesis sta...

Mutant analysis represents one of the most reliable approaches to identifying genes involved in plant development. The screening of the Versailles collection of Arabidopsis thaliana T-DNA insertion transformants has allowed us to isolate different mutations affecting male gametophytic functions and viability. Among several mutated lines, five have been extensively studied at the genetic, molecu...

The widespread presence of incomplete dichogamy (i.e., partial separation in time between male and female phases) in flowering plants is a long-standing question in floral evolution. In this study, we proposed four scenarios in which depending on the particular combination of pollen limitation and inbreeding depression, the presence of complete dichogamy, incomplete dichogamy, or adichogamy may...