Effects of short term flooding on fruit growth, fruit quality and flowering of 'Miyauchi' iyo (Citrus iyo hort. et Tanaka) tangor trees
2003
Bhusal. R.C. (Ehime Univ., Matsuyama (Japan). Coll. of Agriculture) | Onguso, J.M. | Hossain, A.B.M.S. | El-Shereif, A.R. | Mizutani, F.
Summary Effects of short term ( one month from late July) flooding on fruit growth , fruit quality and flowering in 'Miyauchi' iyo ( Citrus iyo hort. ex Tanaka) tangor were studied during July 2000 to May 2002. Fruit growth was significantly retarded by flooding. Fruit size and weight were smaller and Brix in the juice was lower in the flooding at harvest. More flower numbers were recorded in the following spring in the flooded plants but fruit set was two-fold higher in the control. The fruit growth in the second season was also retarded in the trees experienced with flooding so that the size and weight of harvested fruit were smaller, along with lower Brix and higher acid content. Each sugar component ( fructose, glucose and sucrose ) in the juice was lower in the flooding in both seasons. There was no flowering in flooded plants in the third season but in control it was normal as compared with the previous year. These data indicate that even a short period of flooding in one growing season affects a long term effect on fruit growth, fruit quality and flowering in 'Miyauchi' iyo tangor trees.
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