搜索结果: 1-15 共查到“农学 Citrus”相关记录83条 . 查询时间(0.14 秒)
Monitoring intra-annual and interannual variability in spatial distribution of plastic-mulched citrus in cloudy and rainy areas using multisource remote sensing data（图）
Monitoring intra-annual interannual variability spatial distribution plastic-mulched citrus
2024/4/1
The technology of canopy plastic mulching has been widely used in citrus orchards for protecting fruit trees from cold damage. Understanding the spatio-temporal dynamics of plastic-mulched citrus (PMC...
Spray and economics assessment of a UAV-based ultra-low-volume application in olive and citrus orchards
Agrochemical application UAV Sprayer Economic analysis
2024/1/19
Automation is a new frontier in specialty agriculture equipment. Specifically, unmanned aerial vehicles (UAV), machine vision and robotics will increasingly appear in sustainable agricultural systems....
《楚辞》植物简介：柚（柚）Citrus maxima （图）
《楚辞》 植物简介 柚 Citrus maxima
2023/5/17
形态特征：常绿乔木，嫩枝、叶背、花梗、花萼及子房均被柔毛，嫩叶通常暗紫红色，枝扁且有棱，具刺。叶质颇厚，阔卵形或椭圆形，顶端钝或圆，有时短尖，钝锯齿。总状花序，花单生，有时兼有腋生单花，花蕾淡紫红色，花瓣反曲，白色。果圆球形或梨形，多黄色、淡黄绿色，果皮海绵质，多腺点。种子形状不规则，单胚。花期4-5月，果期9-12月。品种多，作食用或药用。
形态特征：常绿小乔木，分枝多，枝有较少的刺。单叶互生，翼叶狭窄或仅有叶痕，叶片披针形、椭圆形或卵形等，革质，大小变异大，先端渐尖，顶端常有凹口，全缘或疏浅锯齿。花单生或2-3朵簇生，花瓣5枚，通常长1.5厘米以内，黄白色。果扁球形，熟时红色、黄色或朱红色，果皮橘络呈网状，果肉易剥离，味酸或甜，或有苦味，或另有特异气味。种子通常卵形，多胚，少有单胚。花期4-5月，果期10-12月。品种甚多，作水果、...
New technique has potential to protect fruit from citrus greening（图）
New technique potential protect fruit citrus greening
2020/3/27
Citrus greening, also called Huanglongbing, is devastating the citrus industry. Florida alone has experienced a 50% to 75% reduction in citrus production. There are no resistant varieties of citrus pl...
Molecular variability of Citrus exocortis viroid in a single naturally infected citrus tree
nucleotide sequence CEVd genome quasi-species
2015/1/30
We report the nucleotide sequence of Citrus exocortis viroid (CEVd) from a single natural infected citrus tree of the clementinier variety (Citrus clementina) in Tunisia. The sequence variability of t...
Citrus flatid planthopper – Metcalfa pruinosa (Hemiptera: Flatidae), a new pest of ornamental horticulture in the Czech Republic
citrus flatid planthopper Metcalfa pruinosa ornamental horticulture first record Czech Republic
2015/1/28
In late August of 2001 a population of Metcalfa pruinosa (Say, 1830) consisting of several dozens of adults and larvae was observed in a nursery of ornamentals at Brno-Bystrc. The species occurred mos...
Occurrence of spontaneous polyploids in Citrus
polyploids Citrus aurantifolia C. paradisi C. reticulate C. sinensis
2015/1/22
Seedlings recovered from underdeveloped seeds of different commercial cultivars of Citrus were studied for their ploidy level. Cytological examination revealed that maximum triploid plants were found ...
Studies on salt stress tolerance of citrus rootstock genotypes with arbuscular mycorrhizal fungi
Citrus karna Poncirus trifoliata × Citrus sinensis NaCl mycorrhiza proline sugars chlorophyll
2015/1/22
Citrus is grouped under the salt sensitive crops. Mycorrhizal fungi, a symbiotic relationship between plant roots and beneficial fungi, are supposed to impart the stress tolerance in the host plants. ...
Citrus Greening Disease – A major cause of citrus decline in the world: A Review
citrus greening disease citrus decline
2015/1/22
Citrus Greening Disease (CGD) was critically reviewed with respect to its history, origin, symptomatology, host range, pathogenic association, identification and detection, transmission and management...
Prospects of classical cross protection technique against Citrus tristeza closterovirus in Pakistan: A review
Citrus tristeza virus cross protection
2015/1/21
In Pakistan citrus groves in general are facing a serious problem of decline that is attributed to different causes. The major cause, however, is the prevalence of citrus virus and virus-like diseases...
First report of Pseudocercospora angolensis causing leaf and fruit spot of Citrus in Sierra Leone
Phaeoramularia angolensis Cercospora angolensis cercosporiose
2014/11/25
In 2006, citrus fruit and leaves affected by dark brown lesions were noticed in orchards around Makeni in central Sierra Leone . The problem was considered widespread in the area by officers of the lo...
Fomitopsis sp. causing brown rot in wood of living citrus trees reported for first time in southern Italy
wood rot, Citrus sinensis Citrus limon Citrus aurantium
2014/11/25
In the spring of 2008 a brown wood rot in 40-year-old orange trees (Citrus sinensis cv. Valencia late) was observed in an orchard in the province of Taranto , Apulia region, Southern Italy . Affected ...
Citrus Pulp as a Dietary Source of Antioxidants for Lactating Holstein Cows Fed Highly Polyunsaturated Fatty Acid Diets
Flavonoids Polyphenols Ferric Reducing Antioxidant Power
2016/5/17
The effects of feeding pelleted citrus pulp (PCP) as a natural antioxidant source on the performance and milk quality of dairy cows fed highly polyunsaturated fatty acid (FA) diets were evaluated. Fou...
Effect of Supplementation of Bacillus subtilis LS 1-2 Grown on Citrus-juice Waste and Corn-soybean Meal Substrate on Growth Performance, Nutrient Retention, Caecal Microbiology and Small Intestinal Morphology of Broilers
Bacillus subtilis LS 1-2 Citrus-juice Waste Corn-soybean Meal Avilamycin Performance Broiler
2016/5/6
A feeding trial was conducted to investigate the effect of dietary supplementation of Bacillus subtilis LS 1-2 grown on citrus-juice waste and corn-soybean substrate on growth performance, nutrient re...