The pollen grains lose their viability in 30 minutes in

The pollen grain is

The pollen grain is

Assertion: Pollen grains of many species cause severe allergies and bronchial afflictions in some people leading to acute respiratory disorders- asthma, bronchitis, etc. Reason: In some members of Rosaceae, Leguminoseae and Solanaceae, pollen grains lose viability within 30 minutes of their release.

Assertion : Pollen grains of many species cause severe allergies and bronchial afflictions in some people leading to acute respiratory disorders-asthma, bronchitis, etc. Reason : In some members of Rosaceae, Leguminoseae and Solanaceae, pollen grains lose viability within 30 minutes of their release.

Himgiri variety which is resistant to hill bunt disease belongs to taxon in which pollen grains lose viability within 10 minutes of their release. The taxon belongs to

Himgiri variety which is resistant to hill bunt disease belongs to taxon in which pollen grains lose viability within 10 minutes of their release. The taxon belongs to

Pollen grain is

Pollen grain is