Chalk9 gene responsible for rice chalkiness:
Scientists in China have discovered the Chalk9 gene responsible for rice chalkiness, a trait that makes grains brittle and opaque during milling, lowering yield and commercial value.Rice is the staple food for most Indians, cultivated on about 25% of the total cropped area, and India ranks as the second-largest producer globally after China & is also the largest exporter of rice globally. It is a kharif crop needing high temperature (>25°C), high humidity, 75–125 cm rainfall, and adequate sunlight; optimal 30°C day / 20°C night, tolerating up to 40°C briefly. Grows best in soils pH 5.5–6.5 with good water-holding capacity and drainage. Leading producers: West Bengal, Uttar Pradesh, Punjab.
