Introgression and Exploitation of QTL for Yield and Yield Components from Related Wild Species in Rice Cultivars

2016 ◽  
pp. 171-202 ◽  
Author(s):  
Kumari Neelam ◽  
Kishor Kumar ◽  
Harcharan Singh Dhaliwal ◽  
Kuldeep Singh
Keyword(s):  
Wild Species ◽  
Yield Components ◽  
Rice Cultivars ◽  
Yield And Yield Components ◽  
Related Wild Species

scholarly journals Altitude, temperature, and N Management effects on yield and yield components of contrasting lowland rice cultivars

2020 ◽  
Vol 206 (4) ◽  
Author(s):  
Boshuwenda Andre Chuma ◽  
Marc Cotter ◽  
Alain Kalisa ◽  
Arisoa Rajaona ◽  
Kalimuthu Senthilkumar ◽  
...  
Keyword(s):  
Yield Components ◽  
Lowland Rice ◽  
Rice Cultivars ◽  
Yield And Yield Components ◽  
N Management ◽  
Management Effects

Rice Seeding and Nitrogen Rate Effects on Yield and Yield Components of Two Rice Cultivars

2008 ◽  
Vol 100 (2) ◽  
pp. 393 ◽  
Author(s):  
Jason A. Bond ◽  
Timothy W. Walker ◽  
Brian V. Ottis ◽  
Dustin L. Harrell
Keyword(s):  
Yield Components ◽  
Rice Cultivars ◽  
Nitrogen Rate ◽  
Rate Effects ◽  
Yield And Yield Components

Rice Seeding and Nitrogen Rate Effects on Yield and Yield Components of Two Rice Cultivars

2008 ◽  
Vol 100 (2) ◽  
pp. 393-397 ◽  
Author(s):  
Jason A. Bond ◽  
Timothy W. Walker ◽  
Brian V. Ottis ◽  
Dustin L. Harrell
Keyword(s):  
Yield Components ◽  
Rice Cultivars ◽  
Nitrogen Rate ◽  
Rate Effects ◽  
Yield And Yield Components

scholarly journals Response of Iron and Cadmium on Yield and Yield Components of Rice and Translocation in Grain: Health Risk Estimation

2021 ◽  
Vol 9 ◽  
Author(s):  
Abu Bakkar Siddique ◽  
Mohammad Mahmudur Rahman ◽  
Md. Rafiqul Islam ◽  
Debapriya Mondal ◽  
Ravi Naidu
Keyword(s):  
Health Risk ◽  
Human Health ◽  
Pore Water ◽  
Health Risks ◽  
Yield Components ◽  
Rice Cultivars ◽  
Human Health Risks ◽  
Yield And Yield Components ◽  
Rice Consumption ◽  
Translocation Factors

Rice consumption is a major dietary source of Cd and poses a potential threat to human health. The aims of this study were to examine the influence of Fe and Cd application on yield and yield components, dynamics of Cd in pore water, translocation factors, daily dietary intake, and estimation of human health risks. A pot experiment was performed under glasshouse conditions where rice cultivars (Langi and Quest) were cultivated in two dissimilar soils under different levels of Cd (0, 1.0, and 3.0 mg kg−1) and Fe (0, 1.0, and 2.0 g kg−1). The results showed that variation in two rice cultivars in terms of yield and yield-related components was dose dependent. Cadmium concentration in soil pore water was decreased over time and increased with increasing Cd levels but decreased with Fe application. Translocation factors (TFs) from root to straw (TFroot-straw) or straw to husk (TFstraw-husk) were higher than root to grain (TFroot-grain) or straw to grain (TFstraw-grain). The Quest cultivar had 20% lower Cd than the Langi cultivar. Application of Fe at the rate of 1 and 2 g kg−1 soil reduced Cd by 23 and 46%, respectively. Average daily intake (ADI) of Cd exceeded the permissible limit (5.8 × 10−3 mg −1 kg−1 bw per week) when rice plant subjected 1 and 3 mg kg−1 Cd stress with or without Fe application. Results also indicated that ADI value was lower in the Quest cultivar as compared to the Langi cultivar. Estimation of human health risk revealed that the non-carcinogenic risks (HQ > 1) and carcinogenic risks (CR > 1.0 × 10−4) increased with increasing Cd levels in the soil. The application of Fe decreased the human health risks from rice consumption which is more pronounced in Fe 2.0 than in Fe1.0 treatments. The rice cultivar grown in soil-1 (pH 4.6) showed the highest health risks as compared to soil-2 (pH 6.6) and the Quest cultivar had lower health risks than the Langi cultivar.

scholarly journals Temperature Effect on Yield and Yield Components of Different Rice Cultivars in Flowering Stage

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
R. Ghadirnezhad ◽  
A. Fallah
Keyword(s):  
Cold Stress ◽  
Yield Components ◽  
Rice Cultivars ◽  
Flowering Stage ◽  
Randomized Design ◽  
Yield And Yield Components ◽  
Percentage Yield ◽  
Completely Randomized Design ◽  
Effect On Yield ◽  
Yield Decrease

In order to study the effect of cold stress in flowering stage on yield and yield components of different rice cultivars, an experiment was performed as split plot factorial based on completely randomized design (CRD) in greenhouse of deputy of rice research institute of Iran (Amol) in 2010, in three repetitions. Treatment included 5 varieties as main factors that included cultivars of shirudi, fajr, local tarom, hybrid, and line 843. Two levels of temperaturesT1(13°C, stress temperature) andT2(32°C, normal temperature, control) along with flowering stage were selected as two subfactors. Three seedlings were planted in each plot. The cold stress was done in flowering stage with holding pots at 13°C for 15 days. Results showed that low temperature had significant effect in level of 1 percent on all characters, such as the number of panicles, the length of panicle, and the number of full, empty, and total grains; as a result, yield had caused significant reduction. Interaction between temperature and varieties showed that most tolerant variety in relation to temperature stress along with least percentage yield (19%) is shirudi variety and the most sensitive one with most percentage of yield decrease (29%) was local tarom variety.

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