Quality traits of rice

The study was carried out with twenty-four genotypes of rice during the Spring season, 2020 in Hanoi, Vietnam in order to exploit the attributes and divergence of quality properties from existing rice cultivars in North Vietnam. The rice genotypes were characterized based on ten quality parameters of milling, physical appearance and physiochemical characters using Mahalanobis D2 statistic

10p viengels 25-08-2023 2 2   Download

Seed dormancy is an adaptive trait employed by flowering plants to avoid harsh environmental conditions for the continuity of their next generations. In cereal crops, moderate seed dormancy could help prevent pre-harvest sprouting and improve grain yield and quality.

13p vinarcissa 21-03-2023 5 1   Download

Due to the diversity of rice varieties and cropping systems in China, the limitation of seeding density and seedling quality makes it hard to improve machine-transplanted efficiency. Previous studies have shown that indica and japonica varieties varied in machine transplanting efficiency and optimal seeding density.

17p vihagrid 30-01-2023 9 3   Download

Heilongjiang Province is a high-quality japonica rice cultivation area in China. One in ten bowls of Chinese rice is produced here. Increasing yield is one of the main aims of rice production in this area. However, yield is a complex quantitative trait composed of many factors.

12p vihagrid 30-01-2023 7 3   Download

Research "Characterization of novel high-quality rice germplasm and molecular markers associated with aroma and amylose content" provides for breeder the necessary characteristics of rice varieties such as days to mature, yield, yield components, aroma, and amylose content. Using the molecular marker-based PCR analysis of 350 diverse accessions, are linked to the specified traits of amylose AC and aroma.

10p tieuduongchi 24-10-2022 6 3   Download

Balancing the yield, quality and resistance to disease is a daunting challenge in crop breeding due to the negative relationship among these traits. Large-scale genomic landscape analysis of germplasm resources is considered to be an efficient approach to dissect the genetic basis of the complex traits.

22p viarchimedes 26-01-2022 14 0   Download

The general combining ability (GCA) of parents in hybrid rice affects not only heterotic level of grain yield and other important agronomic traits, but also performance of grain quality traits of F2 bulk population which is the commodity consumed by humans.

16p vijeeni2711 24-07-2021 10 0   Download

"Ebook Standard evaluation system (SES) for rice" present growth stages of rice plants agronomic traits; traits for evaluation of rice hybrids and/or parental lines; injuries caused by diseases; injuries caused by rodents and birds; physiochemical stress; injuries caused by insect...

65p hoangthingabacgiang 20-02-2021 18 4   Download

In the present study, an attempt was made to understand the association and path analysis of quality and component characters for grain yield in rice genotypes.

6p cothumenhmong9 18-01-2021 19 2   Download

The present investigation was carried out for two years during kharif season (2012 and 2013) of 28 rice genotypes including 2 local checks and layout in Randomized Complete Block Design (RBD) with 3 replications under irrigated condition. Nature and magnitude of genetic divergence was assessed using Mahalanobis D2 statistics through which the genotypes were grouped inti 6 clusters.

8p trinhthamhodang9 16-12-2020 11 2   Download

Three hundred and twenty four Traditional Rice Varieties (TRVs) were collected from different parts of Karnataka and were evaluated for grain yield and its attributes in two seasons (kharif 2011 and summer 2012) at ZARS, VC Farm, Mandya, Karnataka, India.

9p nguathienthan8 20-10-2020 20 2   Download

To study the heterosis using wild abortive(WA) CMS lines on yield, quality and drought related traits in rice, 56 experimental hybrids were produced using Three WA CMS lines (Pusa 6A, IR79156A and IR 68897A) and 31 male genotypes. The present study showed that superior performance for all characters was not expressed in a single hybrid combination.

10p nguaconbaynhay8 13-10-2020 11 1   Download

The present investigation was intended to characterize local landraces of Kashmir valley and some other elite genotypes of temperate rice maintained at the Mountain Research Centre for Field Crop-Khudwani, SKUAST-Kashmir, India (MRCFCKhudwani) for grain quality traits.

8p trinhthamhodang1215 23-09-2020 10 1   Download

To estimate the diversity present in rice germplasm accessions collected from NBPGR, New Delhi, the present investigation was performed involving agro-morphological characterization of 48 rice genotypes based on 36 morphological and 15 agronomical and quality traits which revealed existence of sufficient variability in the germplasm accessions of rice.

12p caygaocaolon7 18-09-2020 5 0   Download

Thirty basmati rice genotypes were evaluated in RBD with three replications with an objective of assessing the genetic variability, heritability, genetic advance for twenty-two yield and quality characters. The results of ANOVA revealed that the mean sum of squares among the genotypes for all the characters were highly significant indicating the presence of ample amount of variability which can be exploited for selection of characters for crop improvement programme.

8p nguaconbaynhay7 15-08-2020 15 1   Download

The exploitation of yield potential through inter sub specific (inter-racial) hybridization become a challenging task for rice breeders. Grain yield improvement is considered to be prime objective of any breeding programme, quality traits are yet another important consideration of rice breeding in India. Association of yield and yield components and among grain quality traits thus assumes a unique prominence as the basis for selecting desirable high yielding genotypes with good grain quality characters.

8p caygaocaolon6 30-07-2020 6 1   Download

The development of biotypes and existence of variability in Brown planthopper population always demands for the identification of new sources of resistance from time to time. However, the presence of desirable quality and yield traits in the genotypes along with source of resistance to BPH will be an added advantage. Screening was carried out with 39such promising rice genotypes and three checks following standard seed box technique. The test revealed 17 genotypes to be moderately resistant with damage score ranging between 3.6 -5.0.

6p gaocaolon5 14-06-2020 12 1   Download

In view to invigorate hybrid rice breeding and exploration of heterosis in untapped, low productive genetic pool of non-basmati aromatic rice, altogether thirtyF1’s were generated in L x T design fashion with thirteen parents (3 testers and 10 lines), and were evaluated along with the parents to unravel the combining ability for 28 yield and yield contributing traits. The study revealed importance of both additive and non-additive gene effects in governing yield and yield components with preponderance of non-additive gene action for most of the yield components.

15p angicungduoc5 12-06-2020 27 2   Download

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.

17p viminato2711 22-05-2020 8 0   Download

Grain length, as a critical trait for rice grain size and shape, has a great effect on grain yield and appearance quality. Although several grain size/shape genes have been cloned, the genetic interaction among these genes and the molecular mechanisms of grain size/shape architecture have not yet to be explored.

13p vihashirama2711 21-05-2020 14 1   Download