Success in reproduction is subject to the successful initiation as well as successful completion of a chain of consecutive events starting from flower formation and ending with viable seed production. A pivotal role in this chain is played by the stigma which is the seat of pollen recognition and initiation of pollen-pistil interaction. An interesting feature of the family Bignoniaceae is the p...

Abstract Orchidaceae, one of the most numerous families in world's flora, have evolved various pollination strategies to favour cross-pollination, such as deceptive and pollinarium reconfiguration. Among terrestrial orchids Mediterranean, only species belonging genus Serapias show a strategy defined shelter imitation. The floral elements form tubular structure that insects use during their rest...

Abstract An increased divergence in characters between species secondary contact can be shaped by selection against competition for a common resource (ecological character displacement, ECD) or maladapted hybridization (reproductive RCD). These selective pressures act incipient (reinforcement) well-separated that already completed the speciation process, but still hybridize and produce hybrids....

Pollination is critical to fruit production, but the interactions of pollination with plant resources on a plant's reproductive and vegetative features are largely overlooked. We examined the influences of pollination, irrigation and fertilisation on the performance of almond, Prunus dulcis, in northern California. We used a full-factorial design to test for the effects of pollination limitatio...

Although Apis mellifera is the dominant managed pollinator used to enhance crop production, variation of its foraging behaviour among crop-cultivars not considered as a factor influencing pollination success and, thus, yield. Almond production highly dependent on cross-pollination. Herein, we examined honey bees and pollen limitation in ‘Nonpareil’ ‘Independence’ cultivars. Nectar pollen-forage...

This study aimed to investigate the floral biology and pollination requirements of sesame (Sesamum indicum L.), cultivar CNPA G2. The study was carried out at Barbalha, State of Ceará, and consisted of two phases: floral biology and pollination requirements. Flowers were observed as for time of anthesis, lifespan and stigma receptivity, and were applied the following pollination treatments: ope...

An increasing degree of attention is being given to the ecosystem services which insect pollinators supply, and the economic value of these services. Recent research suggests that a range of factors are contributing to a global decline in pollination services, which are often used as a “headline” ecosystem service in terms of communicating the concept of ecosystem services, and how this ties pe...

The importance of insects for global food crop production is starting to be well-known but the level dependence on less referenced, especially some aromatic crops. Fennel ( Foeniculum vulgare, Mill.) an mass-flowering cultivated in south France its essential oil that contains anethole. This compound and economical interest because anise flavour, which used elaborate drinks. Here, we have charac...

Tanaman ciplukan digunakan untuk menghasilkan buah segar, bahan baku nutraceutical, dan biofarmasi. Kapasitas genetik dapat ditingkatkan dengan hibridisasi interspesifik. Ketidakcocokan adalah masalah yang muncul pada persilangan antarspesies. Tujuan penelitian mempelajari keberhasilan kompatibilitas penyerbukan sendiri silang interspesifik ciplukan. Penelitian dilaksanakan di Seed and Nursery ...

BACKGROUND AND AIMS The scarcity and unpredictability of active pollinators during late winter in temperate areas tends to favour extended flowering seasons and increased floral longevity in early blooming species, which are usually pollinated by diverse sets of insects. Daphne laureola is a gynodioecious woody perennial that flowers from January to April in southern Spain, a period characteriz...