BACKGROUND AND AIMS Abiotic pollination by wind or water is well established in flowering plants. In some species pollination by rain splashes, a condition known as ombrophily, has been proposed as a floral strategy. However, evidence for this type of abiotic pollination has remained controversial and many reported cases have subsequently been shown to be false. This study investigates ombrophi...

BACKGROUND AND AIMS Although some taxonomic studies in the genus Trigonella have been conducted, there has been no concerted effort to study the breeding system. This paper examines the floral structure and pollination system in a population of T. balansae, an annual pasture legume. METHODS Floral morphology, hand and vector pollination, stigma receptivity, pollen tube growth, using scanning ...

Self-incompatibility (SI) is a genetic mechanism in many flowering plants by which generative reproduction prevented. The self-incompatibility caused the functions of cell controlled genes called S or genes. results decreased pollination and ultimately yield loss. In apple (Malus domestica L.), multi-allelic S-locus. Approaches S-glycoprotein profiles allele-specific PCR methods using gene for ...

Most heterostylous plants possess a reciprocal arrangement of stigmas and anthers (reciprocal herkogamy), heteromorphic self-incompatibility, and ancillary polymorphisms of pollen and stigmas. The topographical complementarity hypothesis proposes that ancillary polymorphisms function in the rejection of incompatible pollen thus promoting disassortative pollination. Here, we test this hypothesis...

Different experiments have showed that interruption in pollination is an important problem in most almond orchards.Asmost of the almond cultivars are self-incompatible,pollination cannot be performed desirably and as a result a failure in almond yield is occurred.Thus under this circumstance,determination of selective cultivars compatibility and choosing appropriate pollinizers are so important...

Pollination is the mechanical transfer of male pollen of a flower on the female stigma.This process has a fundamental role to survive the plants species.Since this process is invisible ,its importance has been ignored.Insufficient pollination can be harmful for the farmer instead of being useful.Pollination can be done via some ways.The most important ways are done by insects and wind.Pistachio...

Research into molecular mechanisms of self-incompatibility (SI) in plants can be observed representatives various families, including Solanaceae. Earlier studies the S-RNase-based SI petunia (Petunia hybrida E. Vilm.) demonstrate that programmed cell death (PCD) is an factor. These suggest phytohormon cytokinin (CK) putative activator caspase-like proteases (CLPs). In this work, data confirming...