It is often believed that the stem of higher plants has characteristics of positive phototropism, and the root shows no phototropism or no sensitivity to light
Water content (WC) and sap flow from leaf sheath of rice plants with varying nitrogen levels at different growth stages and fluctuations in relative water conte
The biotype 1,2, and 3 of N. Lugensobtained from IRRI, the Philippines, were reared continuously on susceptible variety TN1, resistant varieties Mudgo (Bph1), a