Pepper (Piper nigrum L.) is one of the estate crops with high economic value and a foreign exchange earner for Indonesia, but its productivity still low. For this reason, nutrient management essential to increase pepper parent plants. This study aimed obtain best composition foliar fertilizer plant growth, spraying frequency combination growth. The was conducted from November 2020 April 2021 us...

The objective of this study is to investigate tungsten (W) contamination in soil and its enrichment in rice in the area of the world's largest and longest-operating W mines in China. Root zone soil and rice plants were sampled at 15 sites in the agricultural field adjacent to W mines and analyzed for Al, Fe, Mn, Sc, and W contents and W chemical forms in the soil samples and W contents in the r...

This paper proves that a connected matroid M in which a largest circuit and a largest cocircuit have c and c∗ elements, respectively, has at most 1 2 cc∗ elements. It is also shown that if e is an element of M and ce and ce are the sizes of a largest circuit containing e and a largest cocircuit containing e, then |E(M)| ≤ (ce−1)(ce−1)+1. Both these bounds are sharp and the first is proved using...

background and objectives: hyoscyamus reticulatus contains two distinguished tropane alkaloids, hyoscyamineand scopolamine and both of the compounds possesspotential acute or chronic toxicity. in the present study, a simple and efficient transformation system was established for in vitro hairy roots induction in hyoscyamus reticulatus. methods: effect of different factors including agrobacteriu...

Fall dormancy (FD) in alfalfa (Medicago sativa L.) can be described using 11 FD ratings, is widely used as an important indicator of stress resistance, productive performance and spring growth. However, the contrasting growth strategies in internode length and internode number in alfalfa cultivars with different FD rating are poorly understood. Here, a growth chamber study was conducted to inve...

      As host to some of the world’s biggest emergencies and protracted crises, the Eastern Mediterranean Region carries the largest burden of displaced populations globally. Out of 58 million displaced persons worldwide, almost 30 million (52%) come from the Region. Syria is currently the world’s biggest producer of refugees and internally displaced persons, with more than 40% of the populatio...