Sunflower: Breeding for high yielding hybrids
Suitable for different agro-climatic situations in West Bengal
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Sunflower (Helianthus annus L.) is a photo insensitive, highly cross pollinated crop due to protandrus condition of stamens, and pollination by honey bees. The principal states of sunflower cultivation in India are Karnataka, Maharashtra, Andhra Pradesh and Tamil Nadu which are regarded as traditional areas. Sunflower has the potential to be introduced on a large scale during rainfed kharif and rabi, summer under irrigation in most of the states. Wide genetic variation is required in breeding for major agronomically important traits like seed yield, oil yield and composition, flowering behavio...
Sunflower (Helianthus annus L.) is a photo insensitive, highly cross pollinated crop due to protandrus condition of stamens, and pollination by honey bees. The principal states of sunflower cultivation in India are Karnataka, Maharashtra, Andhra Pradesh and Tamil Nadu which are regarded as traditional areas. Sunflower has the potential to be introduced on a large scale during rainfed kharif and rabi, summer under irrigation in most of the states. Wide genetic variation is required in breeding for major agronomically important traits like seed yield, oil yield and composition, flowering behavior, disease resistance. Plant breeding programs need such genetic variation to be able to combine positive traits from different parents to provide the required profitable and sustainable sunflower hybrids of the future. Enhancing the oil yield is the ultimate goal of any sunflower improvement programme. However, being poly-genetically controlled trait, selection based on yield alone is not effective. Genetic variation in traits of sunflower can be gainfully exploited in a crop improvement program, particularly for selection of elite germplasm having more oil content, seed and oil yield.
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