Slide 1
Sweet Potato Convolvulaceae Morning Glory Family Ipomoea batatas Herbaceous Perennial Vine History Native to Central and South America Cultivated in Peru 8000 BC In Caribbean by 2500 BC Travelled to Polynesia by 1000 AD Reported by Columbus on his 4th invasion of the Caribbean Introduced to China 1700s now China is #1 producer Propagation Seldom from seed, flowers sporadically Slips/cuttings, 6 – 10” long Terminal cuttings best, nodal cuttings 1 – 6 nodes can be used Actively growing insect-free vines Clean material virus/disease-free Growing Banks or beds 1 ft between plants 3 – 5 ft between rows 2 – 4 nodes below ground Tuberous storage root Supply ample water first month to establish good roots Fertilizer 5-10-15 Weed control Preemergent herbicide Post emergent grass herbicide Sweet Potato Variety Trials Red Skin White/Cream Flesh Brown Skin Orange Flesh White Flesh White Skin White Flesh White Skin Purple Flesh Harvest 120 - 150 days Sweeter with Age but more weevil damage Fork don’t stab the potatoes Plow Cultivator Root Harvester 0 1 2 3 4 5 6 7 8 9 10 120 Days 150 Days Variety …
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Sweet Potato Convolvulaceae Morning Glory Family Ipomoea batatas Herbaceous Perennial Vine History Native to Central and South America Cultivated in Peru 8000 BC In Caribbean by 2500 BC Travelled to Polynesia by 1000 AD Reported by Columbus on his 4th invasion of the Caribbean Introduced to China 1700s now China is #1 producer Propagation Seldom from seed, flowers sporadically Slips/cuttings, 6 – 10” long Terminal cuttings best, nodal cuttings 1 – 6 nodes can be used Actively growing insect-free vines Clean material virus/disease-free Growing Banks or beds 1 ft between plants 3 – 5 ft between rows 2 – 4 nodes below ground Tuberous storage root Supply ample water first month to establish good roots Fertilizer 5-10-15 Weed control Preemergent herbicide Post emergent grass herbicide Sweet Potato Variety Trials Red Skin White/Cream Flesh Brown Skin Orange Flesh White Flesh White Skin White Flesh White Skin Purple Flesh Harvest 120 - 150 days Sweeter with Age but more weevil damage Fork don’t stab the potatoes Plow Cultivator Root Harvester 0 1 2 3 4 5 6 7 8 9 10 120 Days 150 Days Variety Marketable Roots 0 0.5 1 1.5 2 2.5 3 B-14 Francia Mojave Yel Sunflwr Toquecita Pujol Okinawa Murasaki Liberty 120 Days 150 Days Variety lb/Plant 0 10 20 30 40 50 60 70 80 90 100 120 Days 150 Days Variety % Weevil Free Pests Weevils White Fly Iguana Leafminer Mealy bug Rats & Mice Viruses