The flowering response of the rice
Sensitivity of rice (oryza sativa l) to flowering stage water stress is well recognized however, as with other cereals, there is lack of field research which quantifies plant and soil water status at the flowering stage in relation to water stress-mediated reductions in crop yield a rice cultivar . Rice (oryza sativa) flowering time (termed heading date) is an important agronomic trait for regional and seasonal adaptation, and heading at the proper time is a critical step for successful grain production (izawa, 2007 yeang, 2013 sun et al, 2014). Flowering time manipulated with common agrochemicals date: march 27, 2017 source: university of tokyo summary: a new strain of rice that flowers within a certain period of time after being sprayed with commercial chemicals commonly used to protect rice from fungal diseases is now available, say scientists. The response of rice was studied both by ex-ploiting natural genetic variation to identify quantitative trait loci photoperiodic flowering response in pharbitis.
Flowering response of rice to photoperiod and temperature: a qtl analysis using a phenological model article (pdf available) in theoretical and applied genetics 110(4):778-86 march 2005 with 59 . The international rice research institute (1985) the flowering response of the rice plant to photoperiod a review of the literature 4th edition 79 takeuchi y, ebitani t, yamamoto t, sato h, ohta h et al (2006) development of isogenic lines of rice cultivar koshihikari with early and late heading by marker-assisted selection. Technical bulletin no 8 a review of the literature by bs vergara, tt chang and r lilis. Pollen germination and in vivo fertilization in response to high temperature during flowering in hybrid and inbred rice plant cell and environment (doi: 101111/pce13146) bahuguna r, tamilselvan a, muthurajan r, solis ca, jagadish svk 2018 mild pre-flowering drought priming improves stress defenses, assimilation and sink strength in rice under severe terminal drought.
Genetic control of flowering time in rice, a short-day plant1 odic response of flowering in rice in arabidopsis, ck2 interacts with and phosphorylates the arabi-. Two evolutionarily distant plant species, rice (oryza sativa l), a short-day (sd) plant, and arabidopsis thaliana, a long-day plant, share a conserved genetic network controlling photoperiodic flowering. Rice may be an ideal plant to study the night break effect on flowering in the near future there would be a need for better understanding of the control of flowering in rice at the genetic level a study on the photoperiodic control of flower in rice is advancing and rice has become an example of short day plant.
At least three ft-like genes (osftl1, osftl2, and osftl3) are known to be active and capable of promoting flowering in rice (i zawa et al 2002) barley (hordeum vulgare) is more closely related to rice than to arabidopsis but resembles the latter in photoperiod response. In rice, the stage of development most sensitive to high temperature stress is flowering, and exposure at this stage can result in spikelet sterility, thereby leading to significant yield losses. Abstract water deficits at the anthesis stage of rice (oryza sativa l) induce a high percentage of spikelet sterility and reduce grain yield this study atte. Ebscohost serves thousands of libraries with premium essays, articles and other content including flowering response of rice to photoperiod and temperature: a qtl analysis using a phenological model.
The flowering response of the rice
In spite of short day nature, rice (oryza sativa) shares a conserved photoperiodic network for flowering control with long day plants like arabidopsis thaliana. Abstract sensitivity of rice (oryza sativa l) to flowering stage water stress is well recognized however, as with other cereals, there is lack of field research which quantifies plant and soil water status at the flowering stage in relation to water stress-mediated reductions in crop yield. The flowering plants (also called angiosperms) are the dominant and most familiar group of land plants the flowering plants and the gymnosperms comprise the two groups in the seed plants the flowers of flowering plants are the most remarkable feature that distinguishes them from other seed plants. Hd3a is a member of a large gene family consisting of at least 13 genes in rice genome and at least two paralogs, rice flowering locus t1 (rft1) and ft-like (ftl) promote flowering [28, 39].
In addition, rice phytochromes are also involved in the regulation of flowering time in response to day length (izawa et al, 2000) similar to arabidopsis , circadian‐regulated osgi expression in transgenic rice has striking effects on flowering time ( hayama et al , 2003 ). The flowering-time response of hd16 near-isogenic lines the japonica rice cultivars nipponbare and koshihikari differed in their flowering time and in the response of their flowering to the photoperiod (figure 1a,b) nipponbare flowered after 450 days under sd conditions, 892 days under ld conditions and 1150 days under natural day-length (nd) conditions.
Cloning of quantitative trait genes from rice reveals conservation and divergence of photoperiod flowering pathways in arabidopsis and rice kazuki matsubara 1 , kiyosumi hori 2 , eri ogiso-tanaka 2 and masahiro yano 1,2 †. Rice is a short-day plant flowering (termed “heading” in rice and other cereals) is promoted by short daylength however, there is a large degree of genetic variability in this trait among rice cultivars, from photoperiod insensitivity to strong photoperiod sensitivity. Although most rice cultivars tend to delay flowering under drought stress conditions, acceleration of flowering under drought conditions has also been documented in some modern rice varieties (xu et al, 2005 vikram et al, 2015) these examples demonstrate the complexity and diversity of rice genotype-environment interactions as a result of domestication.