Question
Bacterial leaf blight of rice caused by Xanthomonas
oryzae can be identified bySolution
Bacterial leaf blight of rice caused by Xanthomonas oryzae can be identified by ooze test. When the infected leaves are cut into small bits and put into water in a glass tube, the water becomes turbid and yellowish after the lapse of 30-60 minutes. This turbidity is due to the release of bacterial cells into water from the cut ends of the leaf bits.
Which soil texture class has a bulk density of approximately 1.6 g/cm³?
The acidic soils can be reclaimed by the application of ____
Which branch of soil science focuses on the influence of soils on living organisms?
Tourmaline supplies the element:
What is the primary function of humus in soil?
Which rock is classified as a foliated metamorphic rock?
Which process involves the removal of sodium ions from the soil exchange complex?
Which soils are known as self-tilled soils
The water that is held mostly by soil colloids and it is mostly non-liquid or moves in vapour form, the soil water is termed as
Why do sandy soils generally have higher bulk densities compared to clayey soils?
