Results 21 to 30 of about 150,280 (308)

Allometric Characteristics of Rice Seedlings under Different Transplanted Hills and Row Spacing: Impacts on Nitrogen Use Efficiency and Yield

open access: yesPlants, 2022
The number of seedlings per hill and the configuration of plant row spacing are important management measures to improve rice yield. In the present study, we evaluated the impact of various seedlings per hill (1, 3, 6, and 9 seedlings hill−1) under four ...
Xiaoyan Wu   +14 more
doaj   +1 more source

Ethylene and the Growth of Rice Seedlings [PDF]

open access: yesPlant Physiology, 1985
Etiolated whole rice seedlings enclosed in sealed vials produced ethylene at a rate of 0.9 picomole per hour per seedling. When 2-centimeter-long shoots were subdivided into 5-millimeter-long sections, the sections containing the tip of the shoot evolved 37% of the total ethylene with the remaining 63% being produced along a gradient decreasing to the ...
S O, Satler, H, Kende
openaire   +2 more sources

Exogenous Gallic Acid Confers Salt Tolerance in Rice Seedlings: Modulation of Ion Homeostasis, Osmoregulation, Antioxidant Defense, and Methylglyoxal Detoxification Systems

open access: yesAgronomy, 2022
The worldwide saline-affected area is expanding day by day, and soil salinity restricts crop development and productivity, including rice. Considering this, the current study explored the response of gallic acid (GA) in conferring salinity tolerance in ...
Anisur Rahman   +6 more
doaj   +1 more source

Pythium species from rice roots differ in virulence, host colonization and nutritional profile [PDF]

open access: yes, 2013
Background: Progressive yield decline in Philippine aerobic rice fields has been recently associated with three closely related Pythium spp., P. arrhenomanes, P. graminicola and P. inflatum.
Höfte, Monica, Van Buyten, Evelien
core   +1 more source

A Short Review on the Development of Salt Tolerant Cultivars in Rice [PDF]

open access: yes, 2016
Rice is staple food for half of the world. With a population of almost 9.6 billion by the year 2050, there is a dire need of developing techniques to improve the crop plants, not only in terms of better yield but also to withstand harsh environmental ...
Jahan, N. (Nusrat)   +3 more
core   +4 more sources

Polyamines in Rice Seedlings under Oxygen-Deficit Stress [PDF]

open access: yesPlant Physiology, 1989
Incubation of 3-d-old seedlings of Oryza sativa L. cv Arborio under anaerobic conditions, leads to a large increase in the titer of free putrescine while aerobic incubation causes a slight decrease. After 2 days, the putrescine level is about 2.5 times greater without oxygen than in air.
Reggiani R, Hochkoeppler A, Bertani A
openaire   +3 more sources

Assessment of Five Chilling Tolerance Traits and GWAS Mapping in Rice Using the USDA Mini-Core Collection [PDF]

open access: yes, 2017
Rice (Oryza sativa L.) is often exposed to cool temperatures during spring planting in temperate climates. A better understanding of genetic pathways regulating chilling tolerance will enable breeders to develop varieties with improved tolerance during ...
Boykin, Debbie L.   +7 more
core   +3 more sources

Nitric oxide alleviates cadmium- but not arsenic-induced damages in rice roots [PDF]

open access: yes, 2020
Nitric oxide (NO) has signalling roles in plant stress responses. Cadmium (Cd) and arsenic (As) soil pollutants alter plant development, mainly the root-system, by increasing NO-content, triggering reactive oxygen species (ROS), and forming peroxynitrite
Altamura, M. M.   +6 more
core   +1 more source

An improved method to efficiently acquire rice black-streaked dwarf virus viruliferous small brown planthoppers

open access: yesFrontiers in Genetics, 2023
Accurate phenotypic identification is the basis of research for resistance genetics and rice breeding for resistance to RBSDV disease. Obtaining rice black-streaked dwarf virus (RBSDV) viruliferous small brown planthoppers (SBPHs) with high transmission ...
Linlin Du   +11 more
doaj   +1 more source

Seed production of barnyardgrass (Echinochloa crus-galli) in response to time of emergence in cotton and rice [PDF]

open access: yes, 2012
The spread of herbicide resistance in barnyardgrass (Echinochloa crus-galli (L.) Beauv.) poses a serious threat to crop production in the southern United States.
Assemat   +17 more
core   +1 more source

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