搜索结果: 1-15 共查到“作物学 Cold”相关记录25条 . 查询时间(0.19 秒)
Mitochondrial structure and respiratory metabolism in cold resistance of alfalfa seedling root（图）
苜蓿 抗寒性 秋眠性
2024/5/30
多年生苜蓿以根的形式越冬，因此，苜蓿的抗寒性以及成功越冬的关键在于其根部的抗寒性。在没有叶绿体结构不能进行光合作用的根部，呼吸作用是维持根部细胞生长所需能量ATP的唯一途径。新疆农业大学刘美君副教授团队选用不同秋眠级的新牧4号(秋眠级为2) 和甘农5号(秋眠级为8) 的紫花苜蓿为试验材料，研究发现，低温显著影响了苜蓿根系细胞呼吸代谢，细胞线粒体电子传递链复合体复合体II、III和IV受抑明显致使氧...
南京农业大学农学院《New Phytologist》发表张文利课题组“R‐loops act as regulatory switches modulating transcription of COLD‐responsive genes in rice”（图）
张文利 气候变化 分子机制 作物生长
2023/10/28
随着全球气候变化的不断加剧，低温冻害和冷害已经成为影响农作物生长的一个重要自然胁迫因素。冷胁迫通常影响农作物正常的生长发育进程，严重时导致减产甚至颗粒无收。因此，作物冷应答分子机制研究可为作物耐冷分子育种提供理论参考。植物R-loop在不同的细胞活动中发挥重要作用，包括发育调控和胁迫应答等。然而，在低温敏感型作物如水稻中，R-loop介导冷胁迫应答的分子机制仍鲜有报道。
The grain yield regulator NOG1 plays a dual role in latitudinal adaptation and cold tolerance during rice domestication
NOG1 cold stress domestication differentially expressed genes RNA-seq
2023/4/21
Rice originated in tropical and subtropical regions and is distributed worldwide. Low temperature is one of the most critical abiotic stresses affecting grain yield and geographical distribution of ri...
Physiological and genome-wide gene expression analyses of cold-induced leaf rolling at the seedling stage in rice (Oryza sativa L.)☆
Rice (Oryza sativa L.) Cold-induced leaf yellowing Cold-induced leaf rolling Physiological analysis
2023/4/21
Leaf rolling and discoloration are two chilling-injury symptoms that are widely used as indicators for the evaluation of cold tolerance at the seedling stage in rice. However, the difference in cold-r...
Antioxidant Activity and Sensory Changes of Strawberry Tree Fruits during Cold Storage and Shelf Life
anthocyanins polyphenols sensory analysis texture
2015/12/30
The influence of storage time on a range of quality parameters, in vitro antioxidant activity, and the sensory acceptability
of fully ripe strawberry tree fruits packaged into polypropylene trays un...
Effect of acid scarification and cold moist stratification on the germination of Cercis siliquastrum L. seeds
Acid scarification Cercis siliquastrum cold stratification
2011/6/29
Dormancy in Cercis siliquastrum seeds is due to the hard, impermeable seed coat and inhibition by endosperm. The effects of acid scarification, cold moist stratification, and the combination of both o...
Selectable gene auto-excision via a cold inducible ‘gene deletor’ system
Gene deletor’ cold inducible transgenic tobacco marker free
2011/1/12
Selectable marker genes are necessary tools for selecting transformants during transgenic plant production. However, once transformation is accomplished, the presence of these selectable marker genes ...
Analysis of Quantitative Trait Loci for Cold Tolerance at the Booting Stage of Rice
QTL interval mapping RFLP graphical genotype
2009/9/10
We analyzed the quantitative trait loci (QTLs) for cold tolerance at the booting stage of a cold-tolerant rice variety, Norin-PL8, which harbors cold tolerance genes derived from a cold-tolerant varie...
Roles of the Cold in Crop Lifecycle Performance.
Pod Setting Pattern during and after Low Temperature and the Mechanism of Cold-Weather Tolerance at the Flowering Stage in Soybeans
Cold-weather tolerance Fertilization Flowering stage Low temperature Pod setting pattern Pollination
2009/7/29
The effects of short-term exposure to a low temperature [two weeks, at 18°C/13°C(day/night)] and long-term exposure to a low temperature [four weeks, at 18°C/13°C(day/night)] from the beginning of flo...
Cold- or Heat-Tolerance of Leaves and Roots in Perennial Ryegrass Determined by 1H-NMR
Arrhenius plots Cold stress Dynamic states of water Heat stress NMR relaxation times (T1,T2) Organ Perennial ryegrass Water compartment
2009/7/28
Dynamic states of water in the leaves and roots of perennial ryegrass (Lolium perenne L.) exposed to cold and heat stresses were studied by using 1H-NMR. NMR spin-lattice relaxation times (T1) of leav...
Comparison of Yielding Ability, Yield Component and Harvest Index in New Rice Varieties Bred for Cold Climate Regions
Dry matter production Harvest index High yielding varieties Rice plant Sink size
2009/7/16
To clarify the high yielding characteristics of new rice varieties recently bred in the cold region of Japan, we examined their yielding ability, yield component and harvest index in 1996 (24 varietie...
A Trial of No-tillage Direct Seeding of Rice (Oryza sativa L.) at Early Spring in Cold Climate Region in Japan
Heading Leaf number No-tillage Direct seeding Rice Seeding time
2009/7/16
No-tillage direct seeding of rice (Oryza sativa L.) in early spring was conducted to disperse seeding work and to improve heading time in cold regions. Germinated seeds were seeded every 5 days in 19...
Effects of Cold Staratification Procedure and GA3 Treatment on Embryo Development in Acanthopanax sciadophylloides
cold stratifcation GA3 immature seed warm stratification
2009/7/9
To establish of seed propagation methods in Acanthopanax sciadophylloides, GA3 application (200 mg•L−1), warm (20°C) stratification and cold (5°C) stratification procedures were conducted....
Nodal difference in spikelet fertility and grain ripening on the panicles of cold-tolerant and-susceptible rice cultivars
Rice plants Cool-weather tolerance Grain position Secondary rachis-branch
2009/7/9
We examined the nodal distribution of the numbers of ripened and empty grains and the grain weight in the panicle in 12 rice cultivars with different cold tolerancecultivated in cool water(daily mea...
