https://scholars.tari.gov.tw/handle/123456789/7119
Title: | LT-M有機添加物對白柚柑桔線蟲族群、白柚產量及品質之影響 | Other Titles: | Effect of LT-M mixture on the population of citrus nematode, Tylenchulus semipenetrans Cobb. in shaddock yard | Authors: | 顏志恒 吳信郁 蔡淑珍 陳殿義 蔡東纂 Yen, J. H. Wu, H. Y. Tsay, S. J. Chen, D. Y. Tsay, T. T. |
Keywords: | 白柚;柑橘線蟲;LT-M有機添加物;Shaddock;Citrus nematode;Tylenchulus semipenetrans;LT-M mixture | Issue Date: | Jun-2008 | Publisher: | 中華植物保護學會 | Journal Volume: | 50 | Journal Issue: | 1-2 | Start page/Pages: | 31-36 | Source: | 植物保護學會會刊 | Abstract: | 白柚屬於多年生果樹,無法以輪作方式減少病蟲害發生,在土壤環境條件適合植物寄生性線蟲生長的誘因下,線蟲病害遂成為白柚產業急需解決之重要問題。本省白柚線蟲病害經初步調查發現,以柑橘線蟲最為普遍且線蟲族群密度最高。目前防治柑橘線蟲的方法主要為施用殺線蟲劑,但是使用化學藥劑不僅會造成水源環境污染,破壞生態體系平衡,更可引起人畜中毒,影響消費及環保層面甚廣,並且導致殘毒累積及污染問題愈趨嚴重,而且多種劇毒之殺線蟲劑即將面臨被禁用的命運,因此發展非農藥防治的方法來管理作物線蟲病害是刻不容緩且應走的方向。近年來,國立中興大學植物病理學系植物線蟲病害研究室成功研製利用蝦蟹殼粉、糖蜜、篦麻粕、海草粉及黃豆粉所混合製成具有防治植物線蟲病害的LT-M有機添加物,利用此一添加物防治白柚柑橘線蟲其結果明顯發現,在處理組施用LT-M有機添加物與10%歐殺滅後,與對照組相比,顯著降低柑橘線蟲族群密度,並能抑制柑橘線蟲的族群高峰,如此增強植株生長勢及根系養分、水分的利用,可使白柚植株結果率增加及降低落果情形,提高果實甜度及重量,達到產質的提升,LT-M有機添加物處理組的結果率、結果數目及單果重明顯比10%歐殺滅處理組及對照組多出許多,此外處理組的白柚果實平均甜度亦比對照組多出1.5度。 Plant diseases caused by parasitic nematodes are widespread in Taiwan. The most destructive species in shaddock yard is citrus nematode, Tylenchulus semipenetrans, which causes serious problems. Current management of citrus nematode primarily relies on application of nematicide, however, because chemicals create a potential hazard to the environment and human health, alternatives to nematicides are desirable. Based on the effectiveness of controlling tested nematodes in the greenhouse, Laboratory for Management of Plant-parasitic Nematode Diseases, Department of Plant Pathology, NCHU has developed the mixtures - 40% crab shell powder, 40% castor pomace, 5% soybean powder, 10% marine algae powder and 5% molasses was formulated and added Streptomyces saraceticus, then named Lively Tiller Mixture (LT-M). The effect of LT-M mixture on the population of citrus nematode in shaddock yard has been conducted. The result showed that LT-M, applied at the rate of 20kg per shaddock tree, decreased significantly (P=0.05) the population density of citrus nematode compared to untreated control. Besides, LT-M also increased the percentage of fruiting, number of fruit, single fruit weight and sugar content during the two harvest seasons, respectively. |
URI: | https://scholars.tari.gov.tw/handle/123456789/7119 | ISSN: | 0577-750X |
Appears in Collections: | (3)農業化學組 |
File | Description | Size | Format | |
---|---|---|---|---|
50-12-1.pdf | 2.39 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.