Spikelets botany definition
Web1. (Botany) botany the unit of a grass inflorescence, typically consisting of two bracts (glumes) surrounding one or more florets, each of which is itself surrounded by two … WebMar 2, 2010 · Lateral spikelets are subtended by a bract and have a spikelet prophyll. In distichously organized spikelets, combined concaulescence of the flowers and epicaulescence (a newly defined metatopic displacement) of the glumes has caused interpretational controversy in the past. In Cariceae, the male (co)florescences are …
Spikelets botany definition
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WebSpikelets are small and few flowered spikes which are surrounded at the base by two scales or glumes. They occur in family Gramineae (e.g., Wheat Oat, Grass, etc.). 7. Catkin (Amentum, Fig. 5.72): The inflorescence is a compact unisexual, often hanging, spike which matures and falls down as a single unit, e.g., Mulberry (Morns, vern. WebWHAT DOES SPIKELETMEAN IN ENGLISH? Poaceae The Poaceaeare a large and nearly ubiquitous family of monocotyledonous flowering plants. With more than 10,000 …
WebDefinitions of spikelet. noun. a small sharp-pointed tip resembling a spike on a stem or leaf. synonyms: pricker, prickle, spine, sticker, thorn. see more. Webspikelet [ spahyk-lit ] noun Botany. a small or secondary spike in grasses; one of the flower clusters, the unit of inflorescence, consisting of two or more flowers and subtended by …
WebDec 29, 2024 · but also paired spikelets, with one spikelet sessile and the other pedicellate (Fig. 1). The two spikelets, each with two florets, define a set of four florets; these may differ in their development and in their sex expression (Fig. 2). In most Andropogoneae the distal floret of the sessile spikelet is hermaphroditic, whereas the proximal floret is Webspikelet in American English (ˈspaiklɪt) noun Botany a small or secondary spike in grasses; one of the flower clusters, the unit of inflorescence, consisting of two or more flowers and …
WebMar 1, 1999 · All members of the tribe share not only the characteristic paired florets of the subfamily, but also paired spikelets, with one spikelet sessile and the other pedicellate . …
WebApr 1, 1980 · Spikelets also differed from leaves in that osmotic potentials at full turgor were usually higher. During grain growth, levels of osmotic potential were observed in the spikelets of some genotypes which were up to 1·1 MPa greater than the corresponding water potential. how to view spf recordsWebspikelet in American English (ˈspaiklɪt) noun Botany a small or secondary spike in grasses; one of the flower clusters, the unit of inflorescence, consisting of two or more flowers and subtended by one or more glumes variously disposed around a common axis Most material © 2005, 1997, 1991 by Penguin Random House LLC. origami step by step youtubeWebMar 17, 2024 · Abstract. Wheat adaptation is affected by Ppd genes, but the role of these alleles in the rates of leaf and spikelet initiation has not been properly analysed. Twelve near isogenic lines (NILs) combining Ppd-1a alleles from different donors introgressed in A, B, and/or D genomes were tested under field conditions during two growing seasons … origami step by step easy heartWebspikelet noun spike· let ˈspī-klət : a small or secondary spike specifically : one of the small few-flowered bracted spikes that make up the compound inflorescence of a grass or … how to view spnWebPoaceae 1 1a. Spikelets appearing spiny, either enclosed in a bur-like fascicle of reduced branches or with an enlarged, uncinate -prickly glume [Figs. 204, 279 ] See list of 101 genera in 1b CHOOSE THIS LEAD 1b. Spikelets not spiny, although pubescence or bristles may be present [Figs. 181, 227, 269 ] Show All Couplets how to view spotify history on desktopWebSpikelet. The central part of the ear or spike is a waveform rachis, composed of a number of short nodes and internodes ( Figure 2a). Spikelets grow at the nodes, constituting modified shoots (Figure 2b ). Two glumes, located at the base of each spikelet, are shorter than the rest of lemmas in florets. origami sterne basteln youtubeWebA pistil may be simple, made up of a single carpel, or ovule-bearing modified leaf; or compound, formed from several carpels joined together. A flower having sepals, petals, … origami stem and leaf