scholarly journals Application of spermidine to manage water stress for improved fine rice yield and quality

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Naeem Sarwar
Keyword(s):  
Water Stress ◽  
Rice Yield ◽  
Yield And Quality

Grafting under water stress in tomato cherry: improving the fruit yield and quality

2012 ◽  
Vol 161 (3) ◽  
pp. 302-312 ◽  
Author(s):  
E. Sánchez-Rodríguez ◽  
R. Leyva ◽  
C. Constán-Aguilar ◽  
L. Romero ◽  
J.M. Ruiz
Keyword(s):  
Water Stress ◽  
Fruit Yield ◽  
Yield And Quality

Effects of Rice Yield and Quality Across Accumulated Temperature Zone Planting in Cold Area

2015 ◽  
Vol 22 (2) ◽  
pp. 1-7 ◽  
Author(s):  
Wang Qiu-ju ◽  
Liu Feng ◽  
Gao Pan ◽  
Gao Zhong-chao ◽  
Chang Ben-chao ◽  
...  
Keyword(s):  
Rice Yield ◽  
Temperature Zone ◽  
Yield And Quality ◽  
Cold Area ◽  
Accumulated Temperature

Reexamination of the Influence of Oebalus pugnax (Hemiptera: Pentatomidae) Infestations on Rice Yield and Quality

2020 ◽  
Vol 113 (3) ◽  
pp. 1248-1253
Author(s):  
Blake E Wilson ◽  
Michael J Stout
Keyword(s):  
Rice Yield ◽  
Oryza Sativa L ◽  
The United States ◽  
Quality Parameters ◽  
Stink Bug ◽  
Yield And Quality ◽  
Oebalus Pugnax ◽  
The Impact ◽  
Sweep Net ◽  
Panicle Weight

Abstract The rice stink bug, Oebalus pugnax (F.), is the most important pest of headed rice, Oryza sativa L., in the United States. Numerous studies have attempted to quantify the impact of O. pugnax feeding on rice yield and grain quality, but these studies have often produced conflicting results. Across mid-south U.S. rice, thresholds based on sweep net sampling are used to determine the need for insecticide applications, but few studies have related sweep net captures to rice quality parameters. Field trials were conducted in Louisiana in 2015 and 2016 that used different rates of insecticides to establish rice plots with mean O. pugnax infestations ranging from 0.8 to 24.6 insects per 10 sweeps. Insecticide applications improved panicle weight and head yields as well as decreased percentage peck. A series of linear regressions examined relationships between O. pugnax captures and rice yield and quality parameters, including panicle weight, head yield (% whole kernels), and peck (discolored grains). Mean O. pugnax sweep net captures across all sampling dates in both years were significantly and negatively correlated to panicle weight and head yield and positively correlated to percentage peck. Peck was negatively correlated with head yield. Results from sampling at different maturity stages indicate sweep net captures at grain fill and soft dough stages had the greatest influence on rice yield and quality parameters, respectively. Further research into impacts of milling quality reductions on farm revenue and the influence of cumulative infestations over grain development is needed to improve economic thresholds for O. pugnax in rice.

scholarly journals Nutrition Quality Parameters of Almonds as Affected by Deficit Irrigation Strategies

Molecules ◽  
2019 ◽  
Vol 24 (14) ◽  
pp. 2646 ◽  
Author(s):  
Lipan ◽  
Moriana ◽  
Lluch ◽  
Cano-Lamadrid ◽  
Sendra ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Water Stress ◽  
Volatile Compounds ◽  
Deficit Irrigation ◽  
Phenolic Content ◽  
Quality Parameters ◽  
Total Phenolic ◽  
Nutrition Quality ◽  
Yield And Quality ◽  
Volatiles Compounds

The influence of full irrigation, double-regulated (RDI) and sustained deficit irrigation (SDI) treatments on almond quality was assessed by analyzing different parameters: sugars, organic acids, antioxidant activity, total phenolic content (TPC), and volatile compounds. Almond quality studies for plants submitted to water stress are scarce, and it is essential to understand the biochemical responses of plants to water stress in maintaining fruit yield and quality. Citric acid, sucrose, antioxidant activity, and TPC were not affected by the application of studied deficit irrigation strategies (DI). An increase in malic acid and a decrease in glucose was observed for stressed samples (T3 and T4), while a higher number of total volatiles compounds was found for moderate RDI (T2). Using deficit irrigation strategies, the almond yield and quality was not changed, and in fact, some parameters, such as glucose and key volatile compounds, slightly increased under moderate RDI. This finding might encourage farmers to implement these strategies and contribute to sustainable agriculture.

scholarly journals Spatiotemporal expression profile of novel and known small RNAs throughout rice plant development focussing on seed tissues

BMC Genomics ◽  
2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Anikó Meijer ◽  
Tim De Meyer ◽  
Klaas Vandepoele ◽  
Tina Kyndt
Keyword(s):  
Plant Development ◽  
Early Life ◽  
Small Rnas ◽  
Rice Plant ◽  
Rice Yield ◽  
Small Interfering Rnas ◽  
Yield And Quality ◽  
Spatiotemporal Expression ◽  
Generative Phase ◽  
Generation Sequencing

Abstract Background Small RNAs (sRNAs) regulate numerous plant processes directly related to yield, such as disease resistance and plant growth. To exploit this yield-regulating potential of sRNAs, the sRNA profile of one of the world’s most important staple crops – rice – was investigated throughout plant development using next-generation sequencing. Results Root and leaves were investigated at both the vegetative and generative phase, and early-life sRNA expression was characterized in the embryo and endosperm. This led to the identification of 49,505 novel sRNAs and 5581 tRNA-derived sRNAs (tsRNAs). In all tissues, 24 nt small interfering RNAs (siRNAs) were highly expressed and associated with euchromatic, but not heterochromatic transposable elements. Twenty-one nt siRNAs deriving from genic regions in the endosperm were exceptionally highly expressed, mimicking previously reported expression levels of 24 nt siRNAs in younger endosperm samples. In rice embryos, sRNA content was highly diverse while tsRNAs were underrepresented, possibly due to snoRNA activity. Publicly available mRNA expression and DNA methylation profiles were used to identify putative siRNA targets in embryo and endosperm. These include multiple genes related to the plant hormones gibberellic acid and ethylene, and to seed phytoalexin and iron content. Conclusions This work introduces multiple sRNAs as potential regulators of rice yield and quality, identifying them as possible targets for the continuous search to optimize rice production.

scholarly journals Onion Response to Water Stress

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 837D-837
Author(s):  
Clinton C. Shock ◽  
Erik B.G. Feibert ◽  
Lamont D. Saunders
Keyword(s):  
Water Stress ◽  
Water Potential ◽  
Soil Water ◽  
Soil Water Potential ◽  
Marketable Yield ◽  
Water Deficits ◽  
Yield And Quality ◽  
Highly Sensitive ◽  
Granular Matrix ◽  
Response To Water

Six soil water potential irrigation criteria (–12.5 to –100 kPa) were examined to determine levels for maximum onion yield and quality. Soil water potential at 0.2-m depth was measured by tensiometers and granular matrix sensors (Watermark Model 20055, Irrometer Co., Riverside, Calif.). Onions are highly sensitive to small soil water deficits. The crop needs frequent irrigations to maintain small negative soil water potentials for maximum yields. In each of 3 years, yield and bulb size increased with wetter treatments. In 1994, a relatively warm year, onion yield and bulb size were maximized at –12.5 kPa. In 1993, a relatively cool year, onion marketable yield peaked at –37.5 kPa due to a significant increase in rot during storage following the wetter treatments.

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