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Foliar fungal disease‐resistant introgression lines of groundnut (Arachis hypogaea L.) record higher pod and haulm yield in multilocation testing 下载免费PDF全文
Janila Pasupuleti Manish K. Pandey Surendra S. Manohar Murali T. Variath Premalatha Nallathambi Hajisaheb L. Nadaf Harikishan Sudini Rajeev K. Varshney 《Plant Breeding》2016,135(3):355-366
Introgression lines (ILs) of groundnut with enhanced resistance to rust and late leaf spot (LLS) recorded increased pod and haulm yield in multilocation testing. Marker‐assisted backcrossing (MABC) approach was used to introgress a genomic region containing a major QTL that explains >80% of phenotypic variance (PV) for rust resistance and 67.98% PV for LLS resistance. ILs in the genetic background of TAG 24, ICGV 91114 and JL 24 were evaluated for two seasons to select 20 best ILs based on resistance, productivity parameters and maturity duration. Multilocation evaluation of the selected ILs was conducted in three locations including disease hot spots. Background genotype, environment and genotype × environment interactions are important for expression of resistance governed by the QTL region. Six best ILs namely ICGV 13192, ICGV 13193, ICGV 13200, ICGV 13206, ICGV 13228 and ICGV 13229 were selected with 39–79% higher mean pod yield and 25–89% higher mean haulm yield over their respective recurrent parents. Pod yield increase was contributed by increase in seed mass and number of pods per plant. 相似文献
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Anjula Pandey D. P. Semwal K. C. Bhatt Rita Gupta S. P. Ahlawat 《Genetic Resources and Crop Evolution》2016,63(8):1447-1455
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Proyuth Ly Quynh Duong Vu Lars Stoumann Jensen Arjun Pandey Andreas de Neergaard 《Paddy and Water Environment》2015,13(4):465-475
We studied the effects of water regimes and nutrient amendments on CH4 and N2O emissions in a 2 × 3 factorial, completely randomised growth chamber experiment. Treatments included continuously flooded (CF) and alternate wetting and drying (AWD), and three organic amendments: no amendment-control, rice straw (RS) and biochar (BC). Compound fertiliser was applied to all treatments. Rice was grown in columns packed with a paddy soil from Cambodia. Results revealed faster mineralisation of organic carbon (RS and BC) when applied in water-saturated conditions lasting for 2 weeks instead of flooding. This resulted in lower total CH4 emissions in treatments under AWD than those under the CF water regime, namely 44 % in RS treatments and 29 % in BC treatments. Nitrous oxide fluxes were generally non-detectable during the experimental period except after fertilisation events, and the total N2O–N emissions accounted for on average 1.7 % of the total applied mineral fertiliser N. Overall, the global warming potentials (GWPs) were lower in treatments under AWD than those under the CF water regime except for the control treatment with only mineral fertiliser application. Grain yields were slightly higher in treatments under AWD than the CF water regime. Hence, the yield-scaled GWP was also lower in the treatments under the AWD water regime, namely 51 % in RS, 59 % in BC and 17 % in control treatments. Control treatments had the lowest GWP, but provided the highest yield. The yield-scaled GWP under these treatments was therefore lower than under the other treatments. 相似文献
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‘Ladakhi tea’ <Emphasis Type="Italic">Bidens pilosa</Emphasis> L. (Asteraceae): a cultivated species in the cold desert of Ladakh Himalaya,India 总被引:1,自引:1,他引:0
Bidens pilosa L., a less-known cultivated tea species was collected from cold desert of Ladakh Himalaya, Jammu and Kashmir, India during
2004. The freshly harvested leaves are used in preparation of ‘Ladakhi tea’ locally known as ‘Saja’ or ‘Soljaa’ in cold desert
of Ladakh Himalaya, Western Himalaya, Jammu and Kashmir. The local inhabitants were growing this species in their kitchen
garden for this use. In the present communication, the method of preparation of this beverage is also discussed. 相似文献
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Rani SS Chaturvedi VK Gupta PK Joseph S Nair BC Pandey KD 《Acta veterinaria Hungarica》2006,54(4):449-453
Pasteurella multocida B:2 is responsible for haemorrhagic septicaemia in cattle and buffaloes, causing severe economic losses in the developing countries. In the present study, the ahpA gene of P. multocida B:2 (P52) was cloned, sequenced and compared with the previously reported ahpA gene sequence in P. multocida A:1, which is responsible for its haemolytic phenotype. E. coli DH5a cells were further transformed with recombinant plasmid carrying the ahpA gene from P. multocida B:2 (P52) but SDS-PAGE analysis failed to show the expression of haemolysin protein. Slight haemolysis was albeit observed in horse blood agar plates streaked with recombinant E. coli carrying the ahpA gene. Our study indicates that there is 99.6% similarity and 0.4% divergence between ahpA gene of P. multocida B:2 (P52) and P. multocida A: 1, while membrane topology analysis has predicted that ahpA is an inner membrane protein with two strong hydrophobic regions at the N and C terminals. The presence of significant homology in ahpA sequence in A: 1 and B:2 perhaps suggests a common mechanism of pathogenesis in different species of animals. 相似文献