查詢結果分析
相關文獻
- Studies on Prevention of Cotton "Leaf Burn" Syndrome in The Imperial Valley, California
- Cotton(Gossypium spp.)Leaf Burn Syndrome: A New Cotton Plant Disorder
- Reponse of Cotton Plants to Aldicarb Soil Application
- 烏心石苗木生長於溫室內不同光度下之生理特性
- 離層酸對高粱幼苗耐冷性之影響
- 銀杏種子發芽、扦插與苗本性狀之研究
- 藤蔓植物生長速度與利用GAs處理促進生長之研究
- 親水性聚合物對甘藍及甜椒穴盤苗葉片水分含量及斷水處理後之影響
- 孟宗竹在不同冠層二氧化碳固定效益之研究
- 噴蠟對「海梨柑」與「無子桶柑」蒸散速率與果實品質之影響
頁籤選單縮合
題名 | Studies on Prevention of Cotton "Leaf Burn" Syndrome in The Imperial Valley, California=防治「棉花葉燒病」方法的研究 |
---|---|
作者 | 朱昌祺; | 書刊名 | 中華農學會報 |
卷期 | 164 1993.12[民82.12] |
頁次 | 頁56-68 |
分類號 | 434.618 |
關鍵詞 | 「棉花葉燒病」; 葉片水分含量; 蒸散速率; 葉片溫度; 棉花產量; |
語文 | 英文(English) |
中文摘要 | 在1989和1990年,美國南加州皇帝谷有灌溉沙漠地區棉田普遍發生一種新的「葉燒病」,原因迄未證實,但於土壤中施用aldicarb殺蟲劑的地區,則棉株很少出現這種病徵。本試驗係於1991年在加州Brawley和Holtville兩地,一方面探討施用其它農藥是否和aldicarb具有相同的效果,另一方面則追索葉燒病發生原因,為研究治本方法打下基礎。試用的農藥共有八種,結果發現在棉花開花早期於土中施用aldicarb(有效成分2.52公斤/公頃)或在六、七月裡葉面施用三次液態oxamyl(每次有效成分1.12公斤/公頃),兩者棉花產量相若,均較不施用農藥者為高,且植株具有較低的葉片溫度與水分潛勢及較高的葉片蒸散速率。其它農藥的效果則較差。本試驗雖未能確定棉花植株發生葉燒病的原因,但認為與空氣汚染及缺水逆境並無直接關係。 |
英文摘要 | Insecticides, fungicides, a bactericide, and an antioxidant were studied at Brawley and Holtville, CA in 1991 to evaluate their potential for preventing or alleviating cotton "leaf burn" symptoms. The "leaf burn" condition occurred widespread throughout the Imperial Valley, CA in 1989 and 1990 with devastating reductions in cotton yields. Results of the present stuies suggest that foliar application of liquid oxamyl (methyl N' N'-dimethyl-N-((methylcarbamoyl)oxy)-1-thiooxamimidate) or soil application of aldicarb (2-methyl-2-(methylthio) propionaldehyde-O-( methylcarbamoyl) oxime) prevented occurrence of the cotton plant disorder and increased cotton yields. This was supported by plant physiological indices of lower leaf temperatures, higher transpiration rates, lower leaf water potentials, and higher cotton yields as compared to the untreated plants. The primary cause(s) of the cotton "leaf burn" syndrome have not been determined, but results of our studies suggest that air pollution and irrigation water stress are not directly involved. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。