ISHS Acta Horticulturae 231: II International Symposium on Mango
SPONGY TISSUE DEVELOPMENT IN MANGO FRUIT OF CULTIVAR ALPHONSO IN RELATION TO TEMPERATURE AND ITS CONTROL |
| Authors: | J.S. Katrodia, I.K. Sheth |
| Abstract:
The present investigation was carried out at the Department of Horticulture, Gujarat Agricultural University, Navsari. The field experiments were taken up at Paria (Valsad) and Ghadoi (Valsad) during 1980. Artificial production of spongy tissue in Alphonso fruits could be done successfully by applying proper amount of heat to mature Alphonso fruits at pre- and post-harvest stages through sun exposure, incubation, hot plate and infra-red rays treatments. The mulches of paddy straw and mango dry leaves were found more effective in protecting the orchard soil from excessive heating by solar radiation. These treatments could keep the soil surface temperature down by 12.21 to 15.90°C under both the locations. As a result of this, there were small amount of convective heat currents from the soil, which reduced the occurrence of spongy tissue. Cover crops raised by applying three irrigations did not prove beneficial and economical. The fruits harvested from control plot (clean cultivation) showed 15.55 and 18.33 per cent occurrence of spongy tissue under Paria and Ghadoi conditions respectively. The barren soils under clean cultivation showed the mean soil surface temperature to the extent of 52.40°C. Sod-culture having natural vegetation of Darbh (Eragrostis cynosuroides L.) could control the occurrence of spongy tissue in the fruits on tree to the extent of 100 per cent and it could keep the soil surface temperature down by 20.28°C as compared to that of clean cultivation under Paria conditions. | |
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