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  • CN 11-3996/S
徐芳森, 王运华, 李建春. 甘蓝型油菜硼营养高效在F1代的遗传研究[J]. 植物营养与肥料学报, 1998, 4(3): 305-310. DOI: 10.11674/zwyf.1998.0316
引用本文: 徐芳森, 王运华, 李建春. 甘蓝型油菜硼营养高效在F1代的遗传研究[J]. 植物营养与肥料学报, 1998, 4(3): 305-310. DOI: 10.11674/zwyf.1998.0316
Xu Fangsen, Wang Yunhua, Li Jianchun. INHERITANCE OF RAPESEED (BRASSICA NAPUS L.) BORON EFFIC1ENCY IN F1 GENERATION[J]. Journal of Plant Nutrition and Fertilizers, 1998, 4(3): 305-310. DOI: 10.11674/zwyf.1998.0316
Citation: Xu Fangsen, Wang Yunhua, Li Jianchun. INHERITANCE OF RAPESEED (BRASSICA NAPUS L.) BORON EFFIC1ENCY IN F1 GENERATION[J]. Journal of Plant Nutrition and Fertilizers, 1998, 4(3): 305-310. DOI: 10.11674/zwyf.1998.0316

甘蓝型油菜硼营养高效在F1代的遗传研究

INHERITANCE OF RAPESEED (BRASSICA NAPUS L.) BORON EFFIC1ENCY IN F1 GENERATION

  • 摘要: 采用上培方法,研究了甘蓝型油菜不同硼效率品种为亲本的15个杂交组合农艺性状、棚的吸收、累积、分配和硼效率系数等性状在F1代的表现。结果表明,正反文杂交一代生育期短、抽更早,与高效亲本相近;对土壤轻度缺棚的反应也与高效亲本一致。土壤轻度缺硼时,苗期硼含量较低,累积吸收的单位棚量所形成的干物质重较高,蒙期茎中棚的相对含量高,有利于正反交杂交一代硼素向生长点的运转和再利用。硼效率系数与高效亲本达显著相关,说明甘蓝型油菜硼高效品种与低效品种间的杂交一代表现为硼高效,硼营养高效性状为显性。

     

    Abstract: The breeding of rapeseed (Brassica napus L.) cultivars adapted to soils low in available boron may have particular importance because the crop has a high boron requirement and boron deficiency is widespread in some rapeseed-planting areas. The inheritance of rapeseed (Brasstca napus L.) boron efficiency and agronomic characters in 15 F1 generations (including 6 reciprocals) crossed between different boron efficient cultivars was tested under soil culture. The results indicated that 15 F1 generations had shorter growth period and bolting early. which were close to boron-efficient parents. The responses of the 15 F1 generation to boron deficiency were consistent with boron-efficient parents. which had lower boron concentration and accumulated more dry matter per unit boron at seedling stage, and had higher relative concentration of boron in stem at bolting stage. The boron efflcient coefficient of the 15 F1 generations related to boron-efficient parents was slgnificant. It showed that the boron utilization of 15 first generations crossed between different boron efficient cultivars was boron-efficient and the character of boron-efficient nutrition is a dominant .character, and the relative high boron concentration of boron-efficient cultivars in stem at the condition of boron deficiency may be a mechanism of rapeseed boron-efficient nutrition.

     

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