搜索结果: 1-15 共查到“作物生理学 Oryza sativa”相关记录34条 . 查询时间(0.093 秒)
Root iron plaque alleviates cadmium toxicity to rice ( Oryza sativa ) seedlings
水稻根系 镉吸收 IP 环境胁迫 Cd+Fe
2023/4/21
Iron plaque (IP) on root surface can enhance the tolerance of plants to environmental stresses. However, it remains unclear the impact of Fe2+ on cadmium (Cd) toxicity to rice (Oryza sativa) seedlings...
Physiological responses of two Turkish rice (Oryza sativa L.) varieties to salinity
Chlorophyll K/Na ratio proline rice salinity
2010/10/29
Effects of salinity (60 mM NaCl) on 2 Turkish rice varieties (Kıral and Yavuz) were studied in comparison to 2 international check varieties (IR4630-22-2 tolerant and IR31785-58-1-2-3-3 susceptib...
Radio sensitivity studies of morpho-physiological characteristics in some Iranian rice varieties (Oryza sativa L.) in M1 generation
Gamma ray rice mutation morpho-physiological characteristics
2011/1/12
Gamma (γ) ionizing ray is a physical mutagen, producing variation in crop improvement and employing such as a complementary tool in breeding process. The γ-ray dosages are a critical issue, so it shou...
Effects of Top Dressing on Growth and Panicle Dry Weight as Affected by Soil Water Stress at the Early Panicle-Development Stage in Rice (Oryza sativa L.)
Leaf area duration Net assimilation rate Rice SPAD Total dry weight
2010/3/4
Rice yield is reduced by a short period of water stress at the early panicle-development stage. This study was conducted to examine the factors that reduce the panicle dry weight of rice subjected to ...
Comparison of Susceptibility to Photoinhibition and Energy Partitioning of Absorbed Light in Photosystem II in Flag Leaves of Two Rice (Oryza sativa L.) Cultivars that Differ in Their Responses to Nitrogen-Deficiency
Chlorophyll fluorescence Energy partitioning Hydrogen peroxide Nitrogen-deficiency Photoinhibition Photoprotection Photosynthesis Rice (Oryza sativa L.)
2010/3/4
The energy partitioning in photosystem II (PSII) and the susceptibility to photoinhibition in PSII were investigated in flag leaves of two rice cultivars, Shirobeniya (a traditional japonica) and Aken...
Differential Salinity Tolerance among Oryza glaberrima,Oryza sativa and Their Interspecies Including NERICA
African rice Interspecific progenies New Rice for Africa Salinity tolerance Screening
2010/3/4
Salinity tolerance has been extensively studied in Oryza sativa, but little is known about the salt tolerance levels in Oryza glaberrima and the interspecific progenies including New Rice for Africa (...
Stay-Green in Rice (Oryza sativa L.) of Drought-Prone Areas in Desiccated Soils
Drought Grain-filling period Rice Seedling period Stay-green
2010/3/4
Stay-green in the post-anthesis period is thought to be an efficient drought-tolerance trait in crops, but its effectiveness in rice (Oryza sativa L.) is unknown. Our objectives were to determine whet...
Growth Response of Rice (Oryza sativa L.) to Drought:I. Varietal difference in growth rate, nitrogen uptake and tillering habit at vegetative stage
Drought resistance Growth analysis Nitrogen uptake Plant type Rice Tillering habit
2009/8/6
Varietal differences in growth response to drought were studied in order to determine major attributes composing drought resistance in the rice plant. Eight rice varieties of different hydrological b...
Effects of Different Rhizosphere Sizes on the Growth, Distribution Patterns and Utilization of Nitrogen Fertilizers of Different Varieties of Rice Plants(Oryza Sativa L.)on the Same Hill
Inter-hills competition Oryza Sativa L Partition of Nitrogen
2009/8/6
In order to clarify the inter-hill competition at the maturing stage. Using the tracer 15N method. The growth characteristics of rice plants (Oryza Sativa L., cv. Suweon no. 258 and TKM-6) grown in po...
Light Microscopic Observations on Pollen and Anther in Rice (Oryza sativa L.):II. Stages from early microspore to mature pollen
Development Germ pore Light microscopy Microspore Mitosis Pollen
2009/8/4
Development of pollen cells as well as the fate of tapetal cells were studied by the glycol methacrylate semithin method for light microscopy. Sections including artificially produced images of pollen...
Mechanisms of Different Responses of Leaf Photosynthesis in African Rice (Oryza glaberrima Steud.) and Rice (Oryza sativa L.) to Low Leaf Water Potential
Abscisic acid Drought tolerance Oryza glaberrima Steud Oryza sativa L Photosynthesis
2009/7/31
This research was conducted to elucidate the mechanisms in water stress tolerance of Oryza glaberrima Steud. with special reference to stomatal conductance. Leaf photosynthesis (LPS) of O. glaberrima...
Effects of Atmospheric Partial Pressure of Carbon Dioxide and Phosphorus Nutrition on the Ultrastructure of Rice (Oryza sativa L.) Chloroplasts
Carbon dioxide Chloroplast Mesophyll cell Rice Phosphorus Starch accumulation
2009/7/29
Rice plants were grown in artificially illuminated growth cabinets under combinations of atmospheric partial pressure of CO2 (35 vs. 70 Pa) and phosphorus (P) nutrition (3 vs. 300 μM) to examine their...
Gas Exchange through the Slit between the Lemma and the Palea in the Rice (Oryza sativa L.) Floret before Anthesis
Anther dehiscence Anthesis Floret opening Gas exchange Respiration Rice (Oryza sativa L.) Starch decomposition
2009/7/29
Gas Exchange through the Slit between the Lemma and the Palea in the Rice (Oryza sativa L.) Floret before Anthesis.
Pretreatment with a Low Concentration of Methyl Viologen Decreases the Effects of Salt Stress on Chloroplast Ultrastructure in Rice Leaves (Oryza sativa L.)
Ascorbate peroxidase Catalase Methyl viologen Oryza sativa Salt stress Superoxide dismutase Thylakoids Ultrastructure
2009/7/29
We investigated the effects of pretreatment with a low concentration of methyl viologen (MV) on the salinity-induced chloroplast degeneration in rice seedlings. The seedlings grown in hydroponic cultu...
Pretreatment with Antioxidants Decreases the Effects of Salt Stress on Chloroplast Ultrastructure in Rice Leaf Segments (Oryza sativa L.)
Antioxidants Chloroplasts Oryza sativa L. Salt stress Thylakoids Ultrastructure
2009/7/29
We investigated the kinds of active oxygen species leading to the destruction of chloroplast ultrastructure in salt-stressed rice plants. After the seedlings were grown for 3 wks, leaf segments (5 mm ...