| 摘要: |
| 一、緒言棉花黄萎病是危害我國棉花生產的重要病害之一,分佈範圍很廣。幾年來在老棉區如:關中、晉南、冀東、遼陽等地黄萎病還在繼續擴展。據1956年關中棉區估計陝西經惠渠灌溉區,棉田發病率一般在30%左右,嚴重地區發病逹90%,估計平均減產20%,同時黄萎病也已在新疆新棉區發生,因此為着保證棉花生產,必須積極防治黄萎病。1955年植物保護會議决定棉花黄萎病的研究課题是鑑定病原,明確傅染途徑及寄主範圍,找出防治方法和抗病品種。我們感到棉花抗黄萎病品種的鑑定是尋找和培育抗病品種的基礎。必須組織各地試驗場所的力量,在統一計劃下,進行鑑定才能事半功倍。這個意見得到農業部棉產處,中央農業科學院等備處和各合作單位的支持,使棉花抗黄萎病品種的鑑定試驗得在遼陽、唐山、臨汾、涇陽等四個試驗站、華北科學研究所和北京農業大學(與中國科學院應用真菌學研究所合作)等六個地點同時進行,以期通過田間之試驗,比較各品種在不同地區抗病性的强弱,以了解各地黄萎病菌的差異,為選育抗病豈產品種而打下基礎。 |
| 关键词: 黄萎病菌 抗黄萎病 海岛棉 研究所 初步研究 花品 抗病力 致病力 抗病性 棉花黄萎病 |
| DOI： |
|
| 基金项目: |
|
| STUDIES ON THE RESISTANCE OF COTTON VARIETIES AGAINST VERTICILLIUM WILT |
|
|
|
| Abstract: |
| Verticillium Wilt is a very important cotton disease in the northern cotton belt of China. In diseased fields, the reduction of the yield usually varied from 20 to 30 percent of the crop. In more severe cases, this disease may destroy the crop completely. The using of resistant varieties is regarded as the most effective means of control of the disease. In 1956, joined efforts were made by six institutes and experimental stations in the northern cotton belt with the aim to test out the resistance of a numbe... |
| Key words: |
