life table parameters of aphis pomi degeer (hemiptera: aphididae) were determined on two host plants: apple (malus pumila l.) and flowering quince (chaenomeles japonica lindl.). this study was carried out under laboratory conditions (25 ± 1 ºc and rh of 70 ± 5 % and a photoperiod of 16: 8 h (l: d). the survivorship from first instar nymphs to adult was very close in m. pumila and c. japonica. t...

Oleanolic acid (OA) and ursolic acid (UA) are isomeric triterpenic acids and only one methyl's position is different between them. OA and UA always exist in the same plant, so it is difficult to separate them when determining contents by RP-HPLC. In this study, a very simple mobile phase for HPLC was developed to simultaneously determine UA and OA, and the factors affecting separation were also...

This study was conducted to analyze the effect of magnesium (Mg), zinc (Zn) and boron (B) on level macronutrients (Na, Mg, K, Ca), micronutrients (Zn, B, Mo, Mn, Fe, Co, Ni, Cu), heavy metals (Cd, As, Hg, Pb) in loquat leaves fruit tissues (peel, pulp, seed) using inductively coupled plasma-mass spectrometry (ICP-MS). Fruits were obtained from a orchard located Fujian (Yun Xiao/Zhangzhou). The ...

PURPOSE The present study was carried out to evaluate antimicrobial and antioxidant activities from Eriobotrya japonica stems as well investigation of its chemical composition. METHODS Methanol 80% extract of Eriobotrya japonica stems was tested for antimicrobial activity against bacterial and fungal strains and for antioxidant activity using oxygen radical absorbance capacity (ORAC) and the ...

Lead (Pb) is a non-essential element; however, plants uptake it from soils rich in Pb. Soybean [Glycine max (L.) Merr.] an important legume crop, and Pb toxicity exerts negative impacts on its growth yield. This study investigated the role of foliar-applied loquat (Eriobotrya japonica Lindl.) leaf extract improving morphological, physiological, biochemical traits soybean under toxicity. were ex...