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科学数据
统计数据
共检索到103条 ,权限内显示50条;
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.7
- 摘要：
- was applied to corn, soybean, sorghum, sunflower, oats, barley, wheat and hay in Illinois, Indiana, Iowa, Michigan, Minnesota, North Dakota, Ohio and Wisconsin
Maryknoll School juniors work in their garden, Punahou, Honolulu, Hawaii, 1942
- 负责人：
- DOI：
- doi:10.25549/impa-m61107
- 摘要：
- by the deep trenches. Every grade has a garden by its own air raid shelter. Lettuce, tomatoes, corn, string beans, lima beans, parsley, beets, carrots, cabbage
Data from: The influence of crop tiller density on the breeding performance of a cereal-nesting specialist
- 负责人：
- Setchfield, Rosemary
- 关键词：
- corn bunting breeding performance farmland bird cereal crop crop management nest site selection nest survival ecological trap edge effect intensive agriculture
- DOI：
- doi:10.5061/dryad.g4t3s
- 摘要：
- conservation solutions. We studied whole-season breeding performance of a declining cereal crop specialist, the corn bunting Emberiza calandra, to test
Tree Shelterbelts as an Element to Improve Water Resource Management in Central Asia
- 负责人：
- Thevs, Niels
- 关键词：
- DOI：
- doi:10.7910/dvn/0kkj09
- 摘要：
- was assessed through the Penman\u2013Monteith approach for corn, wheat, potato, barley, and pear under open field conditions and under an assumed influence
Data from: No clear effect of admixture between two European invading outbreaks of Diabrotica virgifera virgifera in natura
- 负责人：
- DOI：
- doi:10.5061/dryad.758d0
- 摘要：
- In this study, we challenged the hypothesis that admixture may have had a positive impact in the context of the European invasion of the western corn
White Horse Stone, ARC WHS 98
- 负责人：
- High Speed 1
- DOI：
- doi:10.5284/1044779
- 摘要：
- periods (c.100 BC - 200 AD), and an early medieval corn-drier (c.1100 AD - 1300 AD), were also found.
Data from: Parallel evolution of behaviour during independent host-shifts following maize introduction into Asia and Europe
- 负责人：
- DOI：
- doi:10.5061/dryad.1pm64
- 摘要：
- genus Ostrinia, O. nubilalis (the European corn borer; ECB) and O. furnacalis (the Asian corn borer; ACB) are now major pests of maize worldwide
Data from: Assessment of grain quality in terms of functional group response to elevated [CO2], water and nitrogen using a meta-analysis: Grain protein, zinc and iron under future climate
- 负责人：
- Al-Hadeethi, Ikhlas
- 关键词：
- DOI：
- doi:10.5061/dryad.1h1f63h
- 摘要：
- and iron (Fe) concentrations of major food crops (542 experimental observations from 135 studies) including wheat, rice, soybean, field peas and corn cons
Data from: Interplanting annual ryegrass, wheat, oat, and corn to mitigate iron deficiency in dry beans
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.30qm1
- 摘要：
- Center in 2009 and 2010. Black- and navy beans were grown alone or intercropped with annual ryegrass (Lolium multiflorum Lam.), oat (Avena sativa L.), corn
Data from: Re-imagining maize inbred potential: identifying breeding crosses using genetic variance of simulated progeny
- 负责人：
- Beckett, Travis
- DOI：
- doi:10.5061/dryad.h825302
- 摘要：
- Proper choice of parents for breeding populations is essential in developing new maize (Zea mays L.) inbreds for improved hybrid performance. Breeders have frequently chosen parental combinations based on mid-parent (MP) value, or predicted progeny mean, to combine favorable traits from the two parents. When two breeding populations have the same MP value, an accurate prediction of progeny variance may reveal which population has a greater potential for genetic gain. In this study we used available inbred genotypes and new hybrid phenotypes from 246 inbreds with expired Plant Variety Protection certificates and 39 historically important North American dent inbreds, all test crossed to Iodent inbred PHP02. We used the R package ‘PopVar’ to simulate bi-parental populations and perform genome-wide prediction to predict the progeny mean, genetic variance, and superior progeny mean for grain yield, grain moisture, and test weight within each virtual population. Breeding crosses were ranked based on the mean grain yield of superior progeny and correlated trait responses for test weight and moisture. Results show that combining germplasm from different proprietors in new breeding crosses can produce inbreds with improved performance in a hybrid test cross. The simulation and prediction model presented in this study may help breeders to identify parental pairs with the greatest potential for genetic gain in hybrid crop breeding programs.
