Forthcoming and Online First Articles

International Journal of Postharvest Technology and Innovation

International Journal of Postharvest Technology and Innovation (IJPTI)

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International Journal of Postharvest Technology and Innovation (3 papers in press)

Regular Issues

  • Effect of high yielding varieties technology in agriculture: evidence from rural India   Order a copy of this article
    by Kiran Mor, Pratibha, Nishant Kumar 
    Abstract: In the agriculture sector technological change has taken place through the diffusion of improved production, tools and techniques such as agricultural implements and machinery yielding a range of seeds, fertilisers, insect repellents, tractors and improved irrigation equipment. This study attempts to investigate the trend of the use of new agricultural technology, its impact on food grain production and growth and variations in agricultural performance among different zones of Haryana as well as its socioeconomic and environmental perspective. It is a time-series study and the relevant data have been collected since 1965-1966, the time when this new agricultural technology was adopted in the state of Haryana. For the study, the compound growth rates and linear and exponential trends of various technological indicators like net area sown, total cropped area, net area irrigated, high-yielding variety of seeds, fertilisers consumption, pesticides consumption, number of tractors, food grain production have been worked out. To examine the dynamic behaviour of food grain production in Haryana (India), various mathematical models have been used. For this purpose, the factors affecting food grains production over time have been identified properly and their impact has been estimated in terms of their marginal productivity and elasticity.
    Keywords: technological indicators; trend values; growth rates; food grain production; socio-economic; environment; India.

  • Post-harvest quality assessment of guava fruit (Psidium guajava. L.) CV. Gola in response to different packaging materials   Order a copy of this article
    by Ali Asad Yousaf, Kashif Sarfraz Abbasi, Mamoona Faiz 
    Abstract: The present study aimed at the evaluation of postharvest quality of guava fruit (cv. Gola) stored under different packaging materials at room temperature. Transition in multiple quality parameters was quantified at fixed intervals (4-days) during the storage period of 20 days. Each packaging material had significant effect upon fruit quality as compared to control samples. The values of firmness, ascorbic acid and total phenolics inclined to retain in the packaged fruit samples as compared to control. Respiratory gases (ethylene and CO2) were hindered under HDPE and BDP packaging’s materials. In terms of enzyme dynamics, catalase (CAT) was high with the passage of storage; however, lower activity of poly phenol oxidase (PPO) was observed in packed samples as compared to unpacked one. Biodegradable, PP and HDPE packaging showed promising results to maintain better fruit quality and revealed higher values for phenolics and vitamin C contents during storage.
    Keywords: Guava; packaging; postharvest quality; ethylene; enzyme dynamics.

  • Storability of organic and conventional sorghum grains at constant relative humidity, and varied temperatures   Order a copy of this article
    by Bernard Darfour, Kurt A. Rosentrater 
    Abstract: Sorghum (Sorghum bicolor L. Moench) is an ancient cereal grain while Sitophilus zeamais is a major damaging insect pest of grains. This study aimed to compare the storability of organic and conventional sorghum grains at a constant relative humidity (RH) and different temperatures. Susceptibility of the two grain types to S. zeamais as well as grain moisture effect, and the alteration in oxygen (O2) and carbon dioxide (CO2) concentrations in airtight jars were similarly studied. A completely randomised design was used in the study. The hermetic jars with S. zeamais had O2 depleted from 21% to 7.6% while O2 almost remained constant in the control. The CO2 increased from 0.03% to 11.1%. High CO2 and low O2 were observed as temperature increased. S. zeamais mortality was 100% in the hermetic jars. Importantly, the quality and quantity of sorghum grains in the airtight jars did not change, especially at low temperatures.
    Keywords: sorghum; relative humidity; RH; temperature; oxygen and carbon dioxide; mortality of insects.

 

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