Ppt on Litchi Breeding

Summary

Litchi, originating from China where it has been cultivated for over 2200 years, has a narrow genetic base in India with only 7-8 commercially popular cultivars out of nearly 40 reported. The climatic variations can significantly affect yield, making the selection of the right variety crucial for specific regions. The litchi inflorescence consists of branched panicles with varying flower types, and the flowering period is influenced by environmental conditions. Desirable cultivar characteristics include large fruit size, good post-harvest quality, uniform ripening, and resistance to pests and diseases. Major litchi varieties include Early Seedless, Muzaffarpur, Rose Scented, Bombai, Calcutta, Late Seedless, Dehradun, Gulabi, and Swarna Roopa, each with unique traits and yield potentials. Breeding efforts focus on improving fruit quality, disease

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Ppt on Fruit dropping

Summary

Fruit drop refers to the detachment of fruit from a tree or plant, caused by the formation of a separation layer of cells on the fruit stalk due to physiological or biochemical events. It can be categorized into three main periods: post bloom drops, June drops, and pre-harvest drops, with some fruits experiencing additional periods such as summer drop and summer fall drop. Post bloom drops occur shortly after flowering due to inadequate pollination, water or temperature stress, and hormonal imbalances, with gibberellic spray as a potential solution. June drops happen when fruits are 1-3 cm in diameter, often caused by water stress and competition among fruits, with solutions including regular irrigation and growth regulators. Pre-harvest drops occur after fruits

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Ppt on Advances breeding of Peach

Summary

The peach, scientifically known as Prunus persica, belongs to the Rosaceae family and is a significant temperate fruit crop, ranking third in production. It is primarily self-pollinated, with most cultivars requiring between 500 to 1000 chilling hours for optimal growth. Peaches and nectarines are native to China, with various wild species found in India. The fruit is commercially cultivated in

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