Effect of cucumber stock on growth and propagation of Meloidogyneincognita and its relation with root exudates Effect of physical characteristics of leaf on resistance of cucumber to aphis Effects of arbuscular mycorrhizal fungi on fusarium wilt and disease resistance-related enzyme activity in cucumber seedling root Impact of weather on vegetable price resilience— A case study of the local cucumber in Shijiazhuang City Effects of manganese and boron nutrition on yield and activities of antioxidant enzymes of cucumber(Cucumis sativus L.)