psidium

The commodity rate and single fruit weight in Pearl grara ( Psidium guajara) could reach 80% and over 200g of single-fruit-weight, respectively with two time of short-lopping per year to control root nematode and to cover the fruits by packet during their growth.

珍珠番石榴采取一年两次短截，彻底防治根线虫，适时套袋保果等技术措施，商品果率高达80%，平均果重200g以上。

Results ( 1). The cell MA-104 grow well before the cell were foreclosed by the sera of essential oil, quercetin, ursolic acid and the leaf of Psidium guajava and then infected by rotavirus;

结果：1、观察到用挥发油、槲皮素、熊果酸、番石榴叶血清预处理MA&104细胞，再用轮状病毒感染，其细胞生长情况良好；

The results show that leaves of wild Psidium guajava in Panzhihua contain a large mount of trace elements of Zn, Mg, Cr and V with different content in the water-soluble and alcohol-soluble extracts.

结果表明，攀枝花地区野生番石榴叶中富含Zn、Mg、Cr、V等微量元素，水提取物和不同浓度乙醇提取物中Zn、Mg、Cr、V等微量元素含量不同。