in Garut Regency. The study was conducted Sukakarya Village, Samarang District, Regency, West Java Province from April to August 2017. used a Randomized Complete Block Design (RCBD) with 4 varieties and 6 replications. local are Kedu Hijau, Omas, Nani, Kenceh. Data were analyzed by F test continued Duncan's Test Correlation at 95% confidence level. results showed that the production of tobacco ...

We used deep learning to identify broad-leaved tree species based on photographs taken outdoors that included multiple leaves. took 300 of each 12 species, and these produce 43,200 256 × pixels images. Caffe as the framework, AlexNet GoogLeNet algorithms. trained four models from a combination test data ratios, with/without augmentation, assessed classification accuracy ratio correct classifica...

Leaves of many evergreen angiosperm species turn red under high light during winter due to the production of anthocyanin pigments, while leaves of other species remain green. There is currently no explanation for why some evergreen species exhibit winter reddening while others do not. Conditions associated with low leaf water potentials (Psi) have been shown to induce reddening in many plant sp...

Most palm species occur in the shaded lower strata of tropical rain forests, but how their traits relate to shade adaptation is poorly understood. We hypothesized that palms are adapted to the shade of their native habitats by convergent evolution towards high net carbon gain efficiency (CGEn), which is given by the maximum photosynthetic rate to dark respiration rate ratio. Leaf mass per area,...

The urban environment characterized by various stresses poses challenges to trees. In particular, water deficits and high temperatures can cause immense drought stress to urban trees, resulting in reduced growth and die-off. Drought-tolerant species are expected to be resilient to these conditions and are therefore advantageous over other, more susceptible species. However, the drought toleranc...

In recent years, increasing populations of horseweed, or mare’s tail, (Conyza canadensis) and hairy, or flax-leaved, fleabane (Conyza bonariensis) have been observed in vineyards, orchards, canal banks, and roadsides in California, especially in the Central Valley. Numerous growers, pest control consultants, and managers have complained that the recommended rates of some postemergent herbicides...

Composite pine forests with nemoral deciduous tree species (Carpinus betulus, Quercus robur, Tilia cordata) are widespread in the broad-leaved forest region of Eastern Europe. They occupy vast ancient alluvial plains sandy and loamy soils, river terraces, along latter they can «come» broad-leaved-coniferous zone. Based on analysis 187 relevés made Bryansk, Kaluga, Moscow Smolensk Regions, class...

The survey article provides an overview of the characteristics and range genus Vaccinium L., modernday assortment different species blueberry, as well reflects dynamics cultivation areas production volumes blueberry worldwide in Belarus. a brief economic biological description varieties released Republic Belarus: 15 highbush 2 half-high 3 narrow-leaved 1 swamp variety. As result implementation ...

Abstract This study compared the effects of four forest canopies on throughfall chemistry in Qinling Mountains, China. Rainfall and samples were collected stands Quercus aliena (Qa) var. Acuteserrata, Pinus tabulaeformis (Pt), P. armandii (Pa), mixed broad-leaved (Mb) trees from 2009 to 2011. The results indicated that pH rainfall, which was mildly acidic, increased as it passed through canopy....