Effect of agronomic management on rice grain quality Part III: Australian water‐saving irrigation practices

2020 ◽  
Author(s):  
Rachael M. Wood ◽  
Brian W. Dunn ◽  
Daniel L. E Waters ◽  
Christopher L. Blanchard ◽  
Andrew John Mawson ◽  
...  
Keyword(s):  
Grain Quality ◽  
Water Saving ◽  
Rice Grain ◽  
Australian Water ◽  
Agronomic Management ◽  
Irrigation Practices

Effect of agronomic management on rice grain quality Part I: A review of Australian practices

2020 ◽  
Author(s):  
Rachael Maree Wood ◽  
Daniel L. E. Waters ◽  
Andrew John Mawson ◽  
Christopher L. Blanchard ◽  
Brian W. Dunn ◽  
...  
Keyword(s):  
Grain Quality ◽  
Rice Grain ◽  
Agronomic Management

Effect of agronomic management on rice grain quality Part IV: Sowing rate

2020 ◽  
Author(s):  
Rachael Maree Wood ◽  
Brian W. Dunn ◽  
Daniel L. E. Waters ◽  
Christopher L. Blanchard ◽  
Andrew John Mawson ◽  
...  
Keyword(s):  
Grain Quality ◽  
Rice Grain ◽  
Agronomic Management

Effect of agronomic management on rice grain quality Part II: Nitrogen rate and timing

2020 ◽  
Author(s):  
Rachael Maree Wood ◽  
Brian W. Dunn ◽  
Jeanette L. Balindong ◽  
Daniel L. E. Waters ◽  
Christopher L. Blanchard ◽  
...  
Keyword(s):  
Grain Quality ◽  
Rice Grain ◽  
Nitrogen Rate ◽  
Agronomic Management

scholarly journals Efficacy of Irrigation Interval after Anthesis on Grain Quality, Alkali Digestion, and Gel Consistency of Rice

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 325
Author(s):  
Ramin Rayee ◽  
Tran Dang Xuan ◽  
Tran Dang Khanh ◽  
Hoang-Dung Tran ◽  
Kifayatullah Kakar
Keyword(s):  
Protein Content ◽  
Grain Quality ◽  
Cooking Quality ◽  
Amylose Content ◽  
Rice Grain ◽  
Gelatinization Temperature ◽  
Rice Varieties ◽  
Irrigation Interval ◽  
Gel Consistency ◽  
Alkali Digestion

The management of amylose and protein contents and cooking quality are the main challenges in rice macronutrients and quality improvement. This experiment was conducted to examine the rice grain quality, alkali digestion, and gel consistency responses to irrigation interval after anthesis. Three rice varieties (K1, K3, and K4) were subjected to different irrigation intervals (1, 2, and 3 d) after anthesis. The findings of this study showed that the protein content was markedly increased from 6.53–6.63% to 9.93–10.16%, whilst the amylose content was decreased significantly from 22.00–22.43% to 16.33–17.56% under stressed treatments at irrigation intervals, whilst the quantity of fatty acids was not affected. The 3-d irrigation interval recorded the highest protein content but the lowest amylose value. In addition, this treatment shows lower gelatinization temperature, but it is negatively associated with hard gel consistency under irrigation interval. This study highlights that the water management following a 3-d irrigation interval from anthesis is a useful and simple treatment to improve rice nutrients and grain cooking quality.

Novel Wx alleles generated by base editing for improvement of rice grain quality

2021 ◽  
Author(s):  
Xiaorui Huang ◽  
Fei Su ◽  
Sheng Huang ◽  
Fating Mei ◽  
Xiaomu Niu ◽  
...  
Keyword(s):  
Grain Quality ◽  
Rice Grain ◽  
Base Editing

scholarly journals A molecular switch in sulfur metabolism to reduce arsenic and enrich selenium in rice grain

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sheng-Kai Sun ◽  
Xuejie Xu ◽  
Zhong Tang ◽  
Zhu Tang ◽  
Xin-Yuan Huang ◽  
...  
Keyword(s):  
Grain Quality ◽  
Sulfur Metabolism ◽  
Physical Interaction ◽  
Rice Grain ◽  
Yield Losses ◽  
Serine Acetyltransferase ◽  
Cysteine Synthase ◽  
Arsenic Tolerance ◽  
Arsenic Accumulation ◽  
Low Levels

AbstractRice grains typically contain high levels of toxic arsenic but low levels of the essential micronutrient selenium. Anthropogenic arsenic contamination of paddy soils exacerbates arsenic toxicity in rice crops resulting in substantial yield losses. Here, we report the identification of the gain-of-function arsenite tolerant 1 (astol1) mutant of rice that benefits from enhanced sulfur and selenium assimilation, arsenic tolerance, and decreased arsenic accumulation in grains. The astol1 mutation promotes the physical interaction of the chloroplast-localized O-acetylserine (thiol) lyase protein with its interaction partner serine-acetyltransferase in the cysteine synthase complex. Activation of the serine-acetyltransferase in this complex promotes the uptake of sulfate and selenium and enhances the production of cysteine, glutathione, and phytochelatins, resulting in increased tolerance and decreased translocation of arsenic to grains. Our findings uncover the pivotal sensing-function of the cysteine synthase complex in plastids for optimizing stress resilience and grain quality by regulating a fundamental macronutrient assimilation pathway.

scholarly journals Applications and Potential of Genome-Editing Systems in Rice Improvement: Current and Future Perspectives

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1359
Author(s):  
Javaria Tabassum ◽  
Shakeel Ahmad ◽  
Babar Hussain ◽  
Amos Musyoki Mawia ◽  
Aqib Zeb ◽  
...  
Keyword(s):  
Genome Editing ◽  
Crop Production ◽  
Grain Quality ◽  
High Efficiency ◽  
Abiotic Stress Tolerance ◽  
Mutation Breeding ◽  
Rice Grain ◽  
Rice Varieties ◽  
Rice Improvement ◽  
Breeding Techniques

Food crop production and quality are two major attributes that ensure food security. Rice is one of the major sources of food that feeds half of the world’s population. Therefore, to feed about 10 billion people by 2050, there is a need to develop high-yielding grain quality of rice varieties, with greater pace. Although conventional and mutation breeding techniques have played a significant role in the development of desired varieties in the past, due to certain limitations, these techniques cannot fulfill the high demands for food in the present era. However, rice production and grain quality can be improved by employing new breeding techniques, such as genome editing tools (GETs), with high efficiency. These tools, including clustered, regularly interspaced short palindromic repeats (CRISPR) systems, have revolutionized rice breeding. The protocol of CRISPR/Cas9 systems technology, and its variants, are the most reliable and efficient, and have been established in rice crops. New GETs, such as CRISPR/Cas12, and base editors, have also been applied to rice to improve it. Recombinases and prime editing tools have the potential to make edits more precisely and efficiently. Briefly, in this review, we discuss advancements made in CRISPR systems, base and prime editors, and their applications, to improve rice grain yield, abiotic stress tolerance, grain quality, disease and herbicide resistance, in addition to the regulatory aspects and risks associated with genetically modified rice plants. We also focus on the limitations and future prospects of GETs to improve rice grain quality.

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