本文選題：紫花苜蓿　切入點(diǎn)：耐鹽性　出處：《內(nèi)蒙古農(nóng)業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：紫花苜蓿是世界上最重要的豆科牧草之一,不僅為家畜提供優(yōu)質(zhì)蛋白,而且也能提高土壤氮素肥力,是我國(guó)糧改飼、促進(jìn)農(nóng)牧業(yè)結(jié)合的首選牧草。廣泛分布于我國(guó)各地的鹽漬化土地是種植飼草料,是保證優(yōu)質(zhì)耕地用于農(nóng)作物種植的有效途徑。但鹽漬化土地嚴(yán)重制約著苜蓿種植業(yè)的發(fā)展,為了篩選出耐鹽苜蓿品種,本研究以18個(gè)紫花苜蓿材料為研究對(duì)象,在不同濃度NaCl(0.0%、0.3%、0.5%、0.7%)處理下采用培養(yǎng)皿發(fā)芽試驗(yàn)法,通過測(cè)定種子的相對(duì)發(fā)芽率、相對(duì)發(fā)芽勢(shì)、幼根生長(zhǎng)量,評(píng)價(jià)了 18個(gè)苜蓿品種的耐鹽性,從中篩選出10個(gè)比較耐鹽的苜蓿品種,再將這10個(gè)苜蓿品種進(jìn)行盆栽試驗(yàn),最終篩選出最耐鹽的苜蓿品種。溫室盆栽試驗(yàn)在不同濃度NaCl(ck、0.25%、0.3%、0.35%、0.4%)處理下針對(duì)苜蓿的出苗率、株高、存活率、分枝數(shù)、細(xì)胞膜透性、游離脯氨酸這六項(xiàng)指標(biāo)進(jìn)行了測(cè)定,根據(jù)上述指標(biāo)對(duì)個(gè)品種進(jìn)行綜合評(píng)價(jià),劃分等級(jí),篩選出耐鹽品種。得出如下主要結(jié)論:1.在發(fā)芽試驗(yàn)中,將18個(gè)紫花苜蓿材料的耐鹽等級(jí)評(píng)價(jià)為:YL702、2006-YL-3、2006-YL-4、S2、S3、中苜一號(hào)、中草 10 號(hào)、巨能耐鹽、SS-2007、YL92-1 耐鹽性強(qiáng);YL-92、SS12-1、SS15-1、S1、S4、巨能 4050、巨能 4010、SS14-1耐鹽性弱。2.在盆栽試驗(yàn)中,10個(gè)紫花苜蓿材料的耐鹽性由高到低排列為:中草10 號(hào)中苜一號(hào)巨能耐鹽YL7022006-YL-4SS-2007S22006-YL-3YL92-1S3。3.盆栽試驗(yàn)中,將10個(gè)紫花苜蓿材料的耐鹽等級(jí)評(píng)價(jià)為:中草10號(hào)耐鹽的能力強(qiáng),中苜一號(hào)、巨能耐鹽、YL702、2006-YL-4耐鹽的能力較強(qiáng),SS-2007、S2、2006-YL-3耐鹽的能力中等,YL92-1、S3耐鹽的能力最弱。
[Abstract]:Alfalfa is one of the most important legume forages in the world. It not only provides high quality protein for livestock, but also improves soil nitrogen fertility. The salinized land widely distributed all over China is the effective way to plant forage and ensure high quality cultivated land for crop planting. But salinized land seriously restricts the development of alfalfa planting. In order to select salt-tolerant alfalfa varieties, 18 alfalfa materials were studied in this study. Under different concentrations of NaCl-0. 0. 0. 3 and 0. 5 and 0. 7, the method of petri dish germination was used to determine the relative germination rate, relative germination potential and young root growth of seeds. The salt tolerance of 18 alfalfa varieties was evaluated. Ten alfalfa varieties with relatively salt tolerance were selected, and the 10 alfalfa varieties were tested in pot culture. Finally, the most salt-tolerant alfalfa varieties were selected. In greenhouse pot experiment, the emergence rate, plant height, survival rate, branching number, cell membrane permeability and free proline of alfalfa were measured under different concentrations of NaClckCon 0.25 and 0.35%. According to the above indexes, the salt tolerant varieties were evaluated, classified and selected. The main conclusions were as follows: 1.In the germination test, the salt tolerance grades of 18 alfalfa materials were evaluated as: 1: 1. The salt tolerance grades of 18 alfalfa materials were as follows:% YL702 / 2006-YL-3 / 2006-YL-4 / S2 / S3, Zhongmu No. 1 and Zhongcao 10, respectively. SS-2007HYL92-1 has strong salt tolerance (YL-92S12-1) SS15-1N S1S4, giant energy 4050, giant energy 401010SS14-1 weak salt tolerance .2.In pot experiment, the salt tolerance of 10 alfalfa materials was arranged from high to low: Zhongcao 1022006-YL-4SS-2007S22006-YL-3YL92-1S3.3in pot experiment, the salt tolerance of 10 alfalfa materials was as follows: YL7022006-YL-4SS-2007S22006-YL-3YL92-1S3.3in pot experiment, the salt tolerance of 10 alfalfa materials was as follows: YL7022006-YL-4SS-2007S22006-YL-3YL92-1S3.3in pot experiment. The salt tolerance grades of 10 alfalfa materials were evaluated as follows: Zhongcao 10 had strong salt tolerance, Zhongmu No.1 had strong salt tolerance, and giant salt tolerance YL702 and 2006-YL-4 had stronger salt tolerance than SS-2007S2 and 2006-YL-3. The salt tolerance ability of Zhongcao 10 and Zhongmu No.1 was the weakest.
【學(xué)位授予單位】：內(nèi)蒙古農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：S541.9

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊興存;杜文華;;6份紫花苜蓿品種萌發(fā)期耐鹽性評(píng)價(jià)[J];種子;2015年12期

2 沙吾列·沙比汗;張薈薈;楊剛;張一弓;賽里克·都曼;王玉;;12份苜蓿種質(zhì)材料苗期耐鹽性綜合評(píng)價(jià)[J];草食家畜;2014年03期

3 孫宏剛;李桂玲;官甲義;;不同苜蓿品種耐鹽能力的研究[J];吉林林業(yè)科技;2011年02期

4 徐敏云;李運(yùn)起;王X;曹玉鳳;于海良;李雪楓;李連樹;景福軍;李佳祥;謝帆;;河北省草地資源分布及植被特征動(dòng)態(tài)[J];草業(yè)學(xué)報(bào);2009年06期

5 陳積山;李錦華;常根柱;朱瑞芬;;10個(gè)紫花苜蓿品種根系形態(tài)特征的研究[J];草原與草坪;2009年01期

6 姚克軍;劉開崇;;紫花苜蓿的利用價(jià)值[J];畜牧獸醫(yī)科技信息;2008年12期

7 王麗學(xué);程積民;萬(wàn)惠娥;周夢(mèng)華;趙凌平;李維軍;石繪陸;;云霧山天然草地植物生長(zhǎng)規(guī)律[J];生態(tài)學(xué)報(bào);2008年07期

8 閔向波;閔向紅;王偉;;安達(dá)苜蓿營(yíng)養(yǎng)成分的分析[J];黑龍江畜牧獸醫(yī);2008年03期

9 田瑞娟;楊靜慧;梁國(guó)魯;劉艷軍;杜長(zhǎng)城;黃俊軒;汪海霞;;不同品種紫花苜蓿耐鹽性研究[J];西南農(nóng)業(yè)大學(xué)學(xué)報(bào)(自然科學(xué)版);2006年06期

10 裘麗珍;黃有軍;黃堅(jiān)欽;夏國(guó)華;龔寧;;不同耐鹽性植物在鹽脅迫下的生長(zhǎng)與生理特性比較研究[J];浙江大學(xué)學(xué)報(bào)(農(nóng)業(yè)與生命科學(xué)版);2006年04期

相關(guān)博士學(xué)位論文 前1條

1 韓瑞宏;苗期紫花苜蓿（Medicago sativa）對(duì)干旱脅迫的適應(yīng)機(jī)制研究[D];北京林業(yè)大學(xué);2006年

相關(guān)碩士學(xué)位論文 前4條

1 青格樂;大棚栽培對(duì)紫花苜蓿生長(zhǎng)特性與品質(zhì)的影響[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2011年

2 吳曉麗;不同紫花苜蓿品種的抗旱生理特性比較研究[D];西北農(nóng)林科技大學(xué);2008年

3 任鴻遠(yuǎn);紫花苜蓿生長(zhǎng)特性與溫度關(guān)系的研究[D];西北農(nóng)林科技大學(xué);2007年

4 徐柱文;NaCl脅迫下五種一年生苜蓿的耐鹽性比較研究[D];甘肅農(nóng)業(yè)大學(xué);2006年

，

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