B P International

Abundant mulberry genotypes are accessible in nature, they are deficient in one or the other important economic trait required for silkworm Bombyx mori L. as mulberry leaf is the sole food. In the present experiment, as S 54 mulberry genotype leaves are very much suited for rearing young age (Chawki) silkworms, an effort has been made to induce phytomorphological variability in S 54 mulberry genotype using gamma rays. RBD Method with three replications / treatment was followed. Experiment was performed in Mulberry garden, Department of Sericulture, Jnana Bharathi Campus, Bangalore University and Mist chamber, Indian Institute of Horticultural Research (IIHR), Bangalore, Karnataka, India. Gamma ray (1kR-10Kr) was used to induce variability in juvenile twigs of mulberry for various agro-botanical characters viz., sprouting, rooting, internodal distance, leaf area, plant height etc. and leaves were exposed to biochemical analysis. Mulberry genotype S 54 showed linear decrease in gro...

Crop loss due to pest attack occurs regardless of the fact that a large quantity of pesticides is used annually. Use of chemical pesticides not only destroy the beneficial enemies but also alter the physiology of crop making more susceptible to pest attack. This chapter focuses on the scope and strategies of crop protection using bio-organic amendments with special reference to infestation of major pests, foliar disease and leaf productivity of mulberry. Massive utilization of inorganic fertilizers for a prolonged period leads to alteration of the soil chemical properties, the availability and uptake of nutrients by the plants. Several studies found that under water stress conditions, crops in organic agriculture systems produce significantly higher yields than comparable with other conventional crops using inorganic package and practices. Researchers have established that increase nitrogen levels in the tissues of the plants may decrease resistance and increase susceptibility to pe...