Grain chalkiness

WebRice grain shape and nutritional quality traits have high economic value for commercial production of rice and largely determine the market price, besides influencing the global food demand for high-quality rice. In order to understand the genetic components of grain appearance traits in paddy, brown, and head rice, 15 traits were evaluated by using 157 … WebJan 1, 2024 · Chalkiness can be categorized as white core, white belly, and white back on the basis of the location of opaque spots in endosperm. Chalkiness rate directly affects consumer acceptance of rice, and as for nonwaxy rice, only those with a chalkiness rate lower than 5% will be defined as high-quality rice.

Genetic mapping and confirmation of quantitative trait loci for grain ...

WebFeb 7, 2024 · Grain chalkiness is a highly undesirable trait deleterious to rice appearance and milling quality. The physiological and molecular foundation of chalkiness formation … WebOct 2, 2024 · Grain chalkiness and grain shape are two important traits of rice grain quality. Low chalkiness slender grains are preferred by most rice consumers. Here, we dissected two closely linked quantitative trait loci (QTLs) controlling grain chalkiness and grain shape on rice chromosome 8 by substitution mapping. phillip schofield laser eye surgery https://plumsebastian.com

Effect of Nitrogen Application Methods on Yield and Grain Quality …

WebJun 12, 2014 · Grain chalkiness is a complex trait adversely affecting appearance and milling quality, and therefore has been one of principal targets for rice improvement. Eliminating chalkiness from rice has been a daunting task due to the complex interaction between genotype and environment and the lack of molecular markers. WebFeb 22, 2024 · Grain chalkiness, an undesirable trait caused by complex factors, has great negative impacts on the quality and economic value of rice. However, little is known about the regulatory mechanism of grain chalkiness, particularly the effect of endoplasmic reticulum (ER) stress. WebMay 1, 2024 · Grain chalkiness in rice refers to the opaque part of endosperm, which is usually composed of irregular starch granules or abnormal protein bodies (Li et al., 2014; Xi et al., 2014). Generally, grain chalkiness is evaluated by the area of chalky endosperm and the percentage of chalky grains. phillip schofield joseph and the amazing

Genotype‐dependent and heat‐induced grain chalkiness in rice …

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Grain chalkiness

WHITE-CORE RATE 1 regulates grain chalkiness in rice

Webpreviously characterized a major QTL for grain shape, slender grain on chromosome 7 (SLG7; Zhou et al., 2015), which is allelic to GL7 and GW7 (Wang et al., 2015a,b). Highly-expressed alleles of SLG7/GL7/GW7 produce slender grains with low chalkiness. SLG7 is valuable in breeding because it has few negative effects on grain yield-related traits. WebMay 31, 2016 · More recently, some stable QTLs causing grain chalkiness were identified by using RILs derived from Lemont (a low chalk tropical japonica variety) and Teqing (a high chalk indica variety) . Among them, the positions of two major QTL clusters on chromosome 5 overlapped with that of cyPPDKB and Chalk5 [6, 11, 12].

Grain chalkiness

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WebJan 17, 2024 · The effects of the average daily temperature difference and average daily light intensity on superior grain chalkiness were highest at the mid-filling stage (r = −0.644 *~−0.718 **), while the effects on inferior grain chalkiness were highest at the early-filling stage (r = −0.571 *~−0.675 *), complementing and improving the results of ... Web对54个粳稻品种进行稻米蒸煮特性与稻米品质性状的相关分析,结果表明,提高稻米碾磨品质使蒸煮特性指标(pH值除外)有下降趋势;粒形3项指标与吸水率、膨胀率关系密切,长粒型米吸水率和膨胀率高,短粒型米吸水率和膨胀率低,垩白大小分别与碘蓝值、固体溶出物呈显著负相关;直链淀粉含量分别与碘蓝 ...

WebIdentification of QTLs or genes controlling chalkiness is the prerequisite for molecular breeding in rice. Here, we conducted a genome-wide association study to identify QTLs associated with grain chalkiness including percentage of grains with chalkiness (PGWC) and degree of endosperm chalkiness (DEC) in 450 rice accessions consisting of 300 ...

WebJul 2, 2024 · Thus, in this study, we assessed high temperature effects on grain weight, chalkiness, and nutrient contents. Rice grains were classified into four groups on the … WebStarch biosynthesis is a complex process underlying grain chalkiness in rice in a genotype-dependent manner. Coordinated expression of starch biosynthesis genes is important for …

WebApr 1, 2024 · Grain chalkiness is one of important factors affected rice grain quality. It is known that chalkiness is affected by the high temperature during the seed filling period. …

WebFeb 23, 2015 · Here we show that the L-GalLDH-overexpressing transgenic rice, GO-2, which has constitutively higher leaf Asc content than wild-type (WT) plants, exhibits … phillip schofield latestWebJan 5, 2024 · Grain chalkiness is a key quality trait of the rice grain, whereas its underlying mechanism is still not thoroughly understood because of the complex genetic and environmental interactions. We identified a notched-belly (NB) mutant that has a notched-line on the belly of grains. try to match them with the meanings belowWebDec 9, 2016 · Chalkiness is one of the most important traits affecting the rice grain quality. It also causes kernels to break and decrease milled rice yield. Taken together, grain chalkiness reduces the postharvest value … phillip schofield leaving this morningWebDec 1, 2016 · Chalkiness is a crucial determinant of rice quality. During seed filling period, high temperature usually increases grain chalkiness, resulting in poor grain quality. Rice chalkiness was controlled… Expand 1 PDF Identification and Pleiotropic Effect Analysis of GSE5 on Rice Chalkiness and Grain Shape Liangrong Jiang, Hui Zhong, +9 authors try to manage without helpWebGrain chalkiness traits is affected by the synthesis and dynamic accumulation of the storage protein in rice N topdressing regulates the synthesis and accumulation of the protein by affecting the key enzymes, especially at 15 DAF, which is attributed to grain … phillip schofield leaves this morningWebJun 2, 2024 · Findings: We cloned the rice chalkiness gene WCR1 (WHITE-CORE RATE 1), encoding an F-box protein that negatively regulates grain chalkiness. A functional … try to make friends mod sims 4WebNov 6, 2024 · Chalkiness, an attribute that affects the visual quality of the raw rice grain, can also be classified as a search attribute as the percent of opacity (“chalkiness”) and translucency of the rice grain factor into purchase decisions of consumers; i.e., in most markets, the higher the degree of chalkiness, the lower is its acceptability in ... phillip schofield kids tv