| 摘要: |
| 为明确嫁接是否可以提高棉花对NaCl的耐性,首先对11份棉花资源种子萌发期和苗期的耐盐性进行了鉴定,并采用隶属函数法对其耐盐性进行评价,发现源于我国西南地区的多年生海岛棉113-5的耐盐性最强,而产量较高的陆地棉栽培品种(转Bt抗虫棉)J-1的耐盐性最弱;然后,以113-5和J-1为材料进行互相嫁接,并以自根苗为对照,结果发现其耐盐性强弱顺序表现为:自根苗113-5 >嫁接株J-1/113-5(接穗/砧木) >反接株113-5/J-1 >J-1自根苗。结果表明,在生产中直接利用耐盐性强的材料作砧木,采用嫁接栽培法可显著提高接穗的耐盐性。 |
| 关键词: 棉花 嫁接 NaCl胁迫 |
| DOI：10.11841/j.issn.1007-4333.2015.06.07 |
| 投稿时间：2015-03-12 |
| 基金项目:国家自然科学基金资助项目(31360348) |
|
| Effect of grafting on improving cotton's resistance to NaCl stress |
|
QIU Ai-hua, LIAO Xiao-fang, WANG Can-can, TANG Dan-feng, ZHOU Bu-jin, CHEN Peng, ZHOU Rui-yang
|
| (College of Agriculture/Key Laboratory of Plant Genetic Breeding of Guangxi Colleges and Universities, Guangxi University, Nanning 530004, China) |
| Abstract: |
| In order to clarify whether grafting can improve the salt tolerance of cotton or not,11 conton materials were used for salt tolerance identification at seed germination stage and seedling stage.Subordinate function was adapted to evaluate their salt tolerance.The result showed that the113-5 cultivar from the southwest of China had the best resistance performance,while the upland cotton (Bt cotton) J-1 displayed lowest resistance but has the higher yield.Contton material 113-5 and J-1 were used as root stocks and scions for each other taking the seeding as controls.The results showed that the strength ranking order of salt resistance is the seedling of 113-5 >graft nursery plant of J-1/113-5(scion/stock) >anti-graft nursery plant of 113-5/J-1 >the seedling of J-1.The result indicated that grafting can obviously improve the ability of salt tolerance of grafted seeding when root stock has stronger salt resistance was used. |
| Key words: cotton grafting stress of NaCl |
