Brainfood: Global taro, Gender gap, Eschatology, Cacao domestication double, Soybean epigenetics, Rice domestication, Domestication space, Botanic gardens, Agrarian care, Open seeds, Sustainable nutrition, Broadbean breeding, Resistant beans, Yam environments, Trade networks

Nibbles: Sheepish, Camel caravan, More sheep, Cheese protection, CATAN, Qat, FAO online double, Potato in NZ, NUS dossier, Ramosmania

An experiment on cassava degeneration, Twitter-style

IITA plant virologist James Legg asks:

Cassava mosaic virus disease & Cassava brown streak virus disease constrain production throughout East & Central Africa, but do the effects get worse if farmers keep recycling planting material?

Yes, right?

Well, it’s more complicated than that. Spoiler alert:

1. Degeneration is most clear in resistant varieties as it happens slowly
2. Virus-free planting material gives greater yield gains than extreme resistance
3. BUT, virus-free material has no value for highly susceptible varieties

But read how they got there.

Brainfood: Makapuno, Middle Eastern dogs, Date palm origins, Speedy NUS, Red apples, Apple characterization, Phenotyping double, Assisted migration & pathology, Soya diversity, Sustainable intensification, Seed research, Cucurbita history, Potato value chains, Livestock ES