In laboratory studies of Arabidopsis thaliana, plants shaded by neighboring vegetation (or subject to treatments mimicking shade) flower at a younger developmental stage, and sometimes earlier in time. We examined whether this shade avoidance response varies among and within natural populations of A. thaliana, and whether it corresponds to variable selection regimes at shaded and unshaded field...

BSERVATIONS on the differences in flowering time of various strains of 0 the seaside golden-rod, Solidago sempervirens L., have now been made over a period of several years. This species is a fall-flowering perennial which, in its native habitat, flowers progressively later in the season as one passes from north to south along the Atlantic Coast. When plants from different portions of the range...

Phenology influences many forest functions and can inform conservation management, yet representative phenological data for most common tropical tree species remain sparse or absent. Between June 2011 December 2013, we investigated flowering, fruiting, leafing patterns in the Bwindi Impenetrable National Park, a montane located near equator Uganda, drawing on 16,410 observations of 530 trees 54...

Hechtia schottii is a terrestrial, rosetofilous, dioecious, polycarpic succulent herb, that grows mainly in shrubby associations, and less frequently, in secondary low caducifolious forests, both on calcareous soils or limestone outcrops in Yucatan and Campeche States, Mexico. We studied phenology, floral and pollination biology, and breeding system at Calcehtok, Yucatan, during two flowering s...

Flowering in the appropriate season is critical for successful reproduction in angiosperms. The orchid species, Dendrobium nobile, requires vernalization to achieve flowering in the spring, but the underlying regulatory network has not been identified to date. The MADS-box transcription factor DnAGL19 was previously identified in a study of low-temperature treated D. nobile buds and was suggest...

The results of our eight-year study a population the rare orchid Dactylorhiza incarnata subsp. cruenta at northern limit its range (the Komi Republic) are presented. Weather factors (air temperature and precipitations) were revealed to influence features small big life cycles this species. number plants in studied was influenced by weather conditions previous growing season, positively August n...

water deficit is an important factor limiting crop production worldwide. drought stress can be managed by improving the availability of soil moisture conserved and selecting drought tolerant genotypes. several physiological indices including stomatal conductance (kl), relative water content (rwc), leaf temperature (tl) and crop temperature stability (cts) along with yield, its components and se...

Abstract Seasonal climate forecasts are a key component of sectoral services. Skill and reliability in predicting agro-climate indicators, co-designed with for European wheat farmers, here assessed. The main findings show how seasonal forecast provides useful information decision-making processes the winter wheat-producing sector. Flowering time can be reliably predicted already at beginning gr...

Perennials have a number of traits important for profitability and sustainability of a biofuel crop. Perennialism is generally defined as the ability to grow and reproduce in multiple years. In temperate climates, many perennial plants enter dormancy during winter and recycle nutrients, such as nitrogen, to below ground structures for the next growing season. Nitrogen is expensive to produce an...