|
|
vol. 10, nr. 3 (2007)
|
Microscope analysis of two generations of wheat grain crops grown from microwave heated seeds
|
|
|
Jerzy Ryszard Warchalewski1, Romualda Dolińska1, Wioletta Błaszczak2
|
|
| (get PDF )
|
|
|
1 Department of Biochemistry and Food Analysis, Agricultural University, ul. Mazowiecka 48, 60-623 Poznań |
|
|
2 2Institute of Animal Reproduction and Food Research, The Division of Food Science, Polish Acad-emy of Science, ul. Tuwima 10, 10-747 Olsztyn |
|
|
vol. 10 (2007), nr. 3,
pp. 727-737
|
|
|
abstract:
Significant reduction of grain damage by insect pests can be achieved by application of physical methods, among them microwave heating, beside chemical methods - for example pesticides. This paper presents the indirect effect of microwave heating of wheat grain, Begra variety, within temperature range from 28 to 98oC, on grain microstructure in two generations crops. The two highest temperatures applied during microwave heating process of wheat grain with initial moisture content 12.2% before sowing weakened the germination power in grain samples treated for 120 s (79oC) and 180 s (98oC), and in consequence lowered grain yield by 9% and 57%, respectively. No visible changes in microstructure of pericarp, aleurone layer, subaleurone and starchy endosperm of wheat kernels collected in two generations crops grown from microwave treated seeds were found. However, some small changes in external epidermal cells were noted, but only in the first generation crop examined by SEM.
|
|
keywords:
wheat grain, microwave heating, microscopic analysis, succession generations
|
|
original in:
Polish
|
|
|
|
|
|
