Effective and economic storage of pigeonpea seed in triple layer plastic bags uri icon

abstract

  • Pigeonpea (Cajanus cajan (L.) Millsp.) seed stored in triple layer Purdue Improved CowpeaStorage (PICS) bags for eight months retained germination and seed integrity significantly betterthan seed stored in traditional gunny bags. PICS bags prevented major damage caused bybruchids (Callosobruchus maculatus F.), while grain stored in gunny bags suffered severe losses.The aflatoxin levels in stored seed were low and not significantly different between the twostorage systems. The levels of O2 in PICS bags artificially infested with C. maculatus droppedrapidly during the first month of storage while the levels of CO2 increased. Even in absence ofbruchids (noninfested seed) PICS bags preserved seed germination for extended periods of timebetter than gunny bags; possibly due to the higher and more stable relative humidity inside thePICS bags. Higher seed germination would result in improved plant stands in the field andsubsequent higher yields and increased productivity. Thus, PICS bags have shown potential topositively impact the economy of pigeonpea farmers in the semi-arid tropics

publication date

  • 2014
  • 2014