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A field experiment was conducted during rabi seasons of 2001--03 under farmers’ participatory research approach at village Khera Murar of Bawal block in district Rewari (Haryana).
Two nutrients, zinc and manganese, were chosen for more detailed study because deficiencies of these nutrients are widespread in South Australia.
High levels of Zn and Mn in seed greatly improved crop growth especially in Zn and Mn deficient soils, in fact, seed high in Mn was more effective than Mn fertiliser in improving early growth and grain yield.
It is concluded that sound healthy seed does vary in quality and this affects seedling vigour, crop establishment and grain yield.
Seed source can affect genotype performance in evaluation trials.
Large seed, of course, contains more nutrients than small seed with which to nourish the embryo, but, mineral nutrient analyses of different seed sizes indicated that there were differences in nutrient concentration between seed sizes.
Again there were genotype differences and the patterns across genotypes varied for different minerals.