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高产优质耐盐碱玉米新品种富民105的选育及苗期盐碱胁迫浓度筛选

Breeding of New Maize Variety Fumin 105 and Concentration Screening of Saline-Alkali Tolerance at Seedling Stage

  • 摘要: 为促进高产优质耐盐碱玉米新品种富民105的推广应用,介绍了该品种的选育过程、特征特性、栽培技术要点和适宜盐碱胁迫浓度的筛选。富民105是吉林省富民种业有限公司以Fm1101为母本、F1为父本选育而成的中晚熟玉米杂交种。2017―2018年参加吉林省高密组区域试验,两年区域试验平均产量为12 674.9 kg·hm-2,比对照品种先玉335增产3.9%。2018年参加吉林省高密组生产试验,2018年生产试验平均产量11 941.7 kg·hm-2,比对照品种先玉335增产5.1%,增产显著。在0,50,100,150和200 mmol·L-15个不同浓度的Na2CO3盐碱溶液模拟胁迫环境,比较盐碱胁迫下玉米品种苗期的盐害情况,筛选出在100 mmol·L-1的Na2CO3胁迫下富民105比对照先玉335叶片持绿性更好,耐盐碱性更强。2018年通过吉林省农作物品种审定委员会审定,审定编号为吉审玉20190027。该品种具有高产、优质、熟期适宜、抗病性强、适应性广、耐盐碱等特点。

     

    Abstract: In order to promote the popularization and application of the new maize variety Fumin 105 with high yield, high quality and saline-alkali resistance, the selection process, characteristics, cultivation techniques and the screening of suitable saline-alkali stress concentration were introduced in this paper. Fumin 105 is a middle and late maize hybrid bred by Jilin Fumin Seed Industry Co., Ltd. with Fm1101 as the mother and F1 as the father. From 2017 to 2018, Fumin 105 participated in the regional experiment of high density group in Jilin Province, and the average yield of the two-year regional experiment was 12 674.9 kg·ha-1, which was 3.9% higher than that of Xianyu 335, the control variety. In 2018, it participated in the production test of high density group in Jilin Province. The average yield of the production test in 2018 was 11 941.7 kg·ha-1, which was 5.1% higher than that of the control variety Xianyu 335, showing a significant increase in yield. In the simulated stress environment of 0, 50, 100, 150 and 200 mmol·L-1 Na2CO3 solution, the salt damage of maize varieties at seedling stage under Na2CO3 stress was compared. It was found that Fumin 105 leaves had better green retention and stronger salt-alkali tolerance than Xianyu 335 leaves under 100 mmol·L-1 Na2CO3 solution. In 2018, it was approved by the Jilin Provincial Crop Variety Certification Committee, and the certification number is Jishenyu 20190027. This variety has the characteristics of high yield, high quality, suitable ripening stage, strong disease resistance, wide adaptability and salt-alkali tolerance.

     

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