Results 11 to 20 of about 5,564 (146)
Do diverse landscapes provide for effective natural pest control in subtropical rice?
Our findings question the cost‐effectiveness of current chemical‐based pest management in farming, and highlight opportunities for more ecologically based pest management strategies based on the widespread activity of natural enemies. Pest damage and biocontrol, however, are largely independent from the landscape context, which might be due to the ...
Yi Zou +8 more
wiley +1 more source
By quantifying the diet composition of GAPs over crop stages, farm types and years, this study reveals that generalist predators have potential to produce a stable, predictable top‐down effect on pests in rice agro‐ecosystems. Therefore, promoting the field densities of ubiquitous generalist predators will likely enhance pest management and support ...
Gen‐Chang Hsu +4 more
wiley +1 more source
Eyes on nature: Embedded vision cameras for terrestrial biodiversity monitoring
Abstract We need comprehensive information to manage and protect biodiversity in the face of global environmental challenges, and artificial intelligence is required to generate that information from vast amounts of biodiversity data. Currently, vision‐based monitoring methods are heterogenous; they poorly cover spatial and temporal dimensions, overly ...
Kevin F. A. Darras +11 more
wiley +1 more source
The use of biochar increased greenhouse gas (GHG) emissions but countered the harm caused by GHG emissions by considerable soil carbon sequestration resulting in a negative carbon footprint. Furthermore, the use of biochar lowered the proportion of CH4 and N2O, demonstrating that biochar usage has a considerable positive effect on GHG emissions ...
Zhuoxi Chen +4 more
wiley +1 more source
Study on Alleviation Mechanism of Hydrogen Sulfide on Copper Stress in Rice Seedlings [PDF]
硫化氢(hydrogensulfide,H2S)是继一氧化氮(nitricoxide,NO)、一氧化碳和(carbonmonooxide,CO)之后被广泛关注的气体信号分子,低浓度的H2S在动物、植物和微生物中被证实参与了众多生理生化过程,调节了有机体的生长发育。H2S在植物应对盐害、干旱、重金属胁迫、冷热胁迫中发挥重要作用,增强植物对逆境的抵抗力。 铜污染是环境污染中不容忽视的一类重金属污染。本文中,我们以水稻(Oryzasativa)为材料,研究了H2S对铜胁迫的影响。结果显示低浓度的H2S ...
尹珊珊
core
Breeding Aromatic Rice Restorer by Specific Fragrant Molecular Marker-assisted Selection [PDF]
水稻是最重要的粮食作物之一,香稻因其米饭清香、口感好以及市场价格高等优势而倍受人们青睐。由于传统香稻品种大多产量低、抗性弱且有地域性限制,导致其推广种植面积受到限制;而且传统的香稻育种方式耗时长、准确率低,使香稻品种的开发缓慢低效。随着分子生物技术的飞速发展,借助分子标记辅助选择开展香稻育种可以提高香味选择准确率,加快育种进程。为此,本研究应用分子标记辅助选择技术与传统育种技术相结合的方法,选用优良水稻恢复系福恢673、明恢86和闽恢3301为受体亲本,分别与香味基因供体亲本优质香稻品种象牙香占杂交 ...
高筱莎
core
Identification of Rice Dwarf Mutant and Fine Mapping of mhd1 Gene [PDF]
株高是水稻株型重要的组成因子,直接关系到水稻的产量,株高过高易引起植株倒伏导致减产,适当矮化则可以达到抗倒、增产的目的。虽然目前已经鉴定不少与水稻矮秆相关的基因,但是能够在生产上实际应用的矮秆主基因仍以sd1为主。因此,寻找和创造能在生产上利用的矮秆种质资源以及研究矮化相关机制具有重要的理论和实践意义。 本研究的材料源于籼稻品种闽恢3301经EMS诱变产生的小粒矮秆突变体,暂命名为mhd1(Minhui3301dwarf1)。mhd1表现出多个异常表型,包括植株矮化、叶片直立变宽、叶色深绿、穗和谷粒较小,
陈伟刚
core
以江汉平原连续水耕年限大于100 a(老稻田)和由旱耕改为水耕17 a(新稻田)的稻田为研究对象,通过测定土壤剖面基本理化性质和水力学参数,揭示了2种稻田土壤水分渗漏和保持特征差异。结果表明:(1)新稻田土壤的平均饱和导水率(Ks)为32.05 cm/d,显著高于老稻田(17.91 cm/d)。新、老稻田土壤Ks均表现为耕作层>底土层>犁底层,新稻田耕作层Ks分别为犁底层和底土层的6.3倍和5.7倍,老稻田耕作层Ks分别是犁底层和底土层的6.9倍和4.0倍。(2)老稻田土壤持水能力高于新稻田 ...
张 +5 more
doaj
明清时期跨区域农学知识传播方式的个案研究——以畿辅地区的水稻推广为例 [PDF]
由于交通不便与地理空间的隔阂,古代跨区域农学知识的传播方式很难被观察到,而明清时期畿辅地区水稻种植的推广由于保存了大量的原始文献,可视为考察长时段跨区域农业知识传播的一个经典案例。本文详细分析了明清畿辅地区水稻推广中的技术传播主体及传播方式 ...
杜新豪
core
Degradation of indole by an indole degrading methanogenic consortium enriched from sewage sludge proceeded through a two step hydroxylation pathway yielding oxindole and isatin.
Fan, Y, Gu, J, Qiu, W, Wang, Y
core +8 more sources

