Variation in Growth and Yield Performance of Seventeen Water Chestnut Accessions (Trapa spp.) Collected from Asia and Europe

• SURIYAGODA Lalith

  Faculty of Agriculture, University of Peradeniya

• ARIMA Susumu

  Faculty of Agriculture, Saga University

• SUZUKI Akihiro

  Faculty of Agriculture, Saga University

• HOQUE Md Aminul

  Department of Agronomy and Agricultural Extension, University of Rajshahi

抄録

Water chestnut is an aquatic annual herb, and its fresh, edible fruit is a valuable crop. The huge variation in growth and yield of water chestnuts has not been well documented. In this study, the yield performance of 17 water chestnut lines, eight from China (Trapa acornis L., T. bicornis L., T. bispinosa Roxb, T. quadrispinosa Roxb), one from France (T. natans L.), one from India (T. bispinosa Roxb.), three from Italy (T. natans L.), three from Japanese (T. incisa L., T. japonica Flerov, T. natans.L. van rubeola Makino), and one from Korean (T. japonica Flerov.) were cultivated in Saga City, Japan during the summer, 2005, and the morphological characters of their fruit were analyzed. European lines were early flowering, but had a lower yield due to poor canopy density and lower rosette density. All the Asian lines had a higher rosette density. In spite of the smaller number of fruits per rosette, the Chinese lines had a higher yield than the other lines because the fruit was larger. The yield performance of the Indian line was similar to that of the Chinese lines. The Korean and Japanese lines produced a large number of small fruits per unit land area. Apart from the variation in fruit size, a huge variation in shape including the height, width and the spines were observed. Path analysis revealed that productive rosette number m^<-2> and the single fresh fruit weight are two direct yield determinants while number of fruits per rosette has indirect negative influence on yield via productive rosette number and single fruit weight.

収録刊行物

• Plant production science

  Plant production science 10 (3), 372-379, 2007-09-01

  日本作物学会

キーワード

• Aquatic plant
• Paddy field cropping
• Trapa
• Water chestnut
• Yield

詳細情報

• CRID: 1570009752377616384
• NII論文ID: 110006344201
• NII書誌ID: AA11162156
• ISSN: 1343943X
• 本文言語コード: en
• データソース種別:
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