[Objectives] The study aimed to discuss the high-yield mechanism of Yugu 18.[Methods] The characteristics of sources and sinks of Yugu 18 with high quality, high yield, wide adaptability and multi-resistance to diseas...[Objectives] The study aimed to discuss the high-yield mechanism of Yugu 18.[Methods] The characteristics of sources and sinks of Yugu 18 with high quality, high yield, wide adaptability and multi-resistance to diseases were studied by using Jigu 18 as the control variety.[Results] Yugu 18 was superior in sink capability and the ability to fill sinks. In the filling period, its photosynthetic capacity was strong, and grain-leaf ratio was high. Photosynthetic products had a great contribution to grain filling after flowering, and the coordination between sources and sinks was good.[Conclusions] The research provides theoretical basis for the breeding and cultivation of high-yield foxtail millet.展开更多
根据谷子(Setaria italica Beauv.)品种豫谷18在河南省南阳市近5年的田间表现,研究降雨量与谷子产量的关系,通过相关性分析和主成分分析法分析谷子产量的影响因素,以期为南阳市谷子的高产栽培技术提供科学依据。结果表明,影响谷子产量...根据谷子(Setaria italica Beauv.)品种豫谷18在河南省南阳市近5年的田间表现,研究降雨量与谷子产量的关系,通过相关性分析和主成分分析法分析谷子产量的影响因素,以期为南阳市谷子的高产栽培技术提供科学依据。结果表明,影响谷子产量的因子从大到小依次为降雨量、穗粒质量、单穗质量、穗粗、穗长、千粒质量、生育期、日照时数、出谷率、株高、穗数;其中产量与降雨量、千粒质量、生育期和株高呈负相关,与降雨量的相关性达显著水平(P<0.05),产量与其他指标呈正相关,与穗粒质量和单穗质量的相关性达显著水平(P<0.05)。降雨量与单穗质量、穗粒质量、穗长、穗粗等谷子主要农艺性状呈负相关;降雨量多时,单穗质量、穗粒质量、穗长、穗粗等农艺性状变小,且谷瘟病、细菌性褐条病等病害发生重,最终导致产量降低。因此,在南阳市种植谷子时应选择地势高、地势平坦、不易积水的地块或丘陵岗坡地;降雨量多的年份要防治谷瘟病和细菌性褐条病。展开更多
基金Supported by Key Scientific and Technological Project of Anyang CitySpecial Funds for Construction of Modern Agricultural Industrial Technology System of Ministry of Agriculture/Ministry of Finance(CARS-06-13.5-B25)
文摘[Objectives] The study aimed to discuss the high-yield mechanism of Yugu 18.[Methods] The characteristics of sources and sinks of Yugu 18 with high quality, high yield, wide adaptability and multi-resistance to diseases were studied by using Jigu 18 as the control variety.[Results] Yugu 18 was superior in sink capability and the ability to fill sinks. In the filling period, its photosynthetic capacity was strong, and grain-leaf ratio was high. Photosynthetic products had a great contribution to grain filling after flowering, and the coordination between sources and sinks was good.[Conclusions] The research provides theoretical basis for the breeding and cultivation of high-yield foxtail millet.
文摘根据谷子(Setaria italica Beauv.)品种豫谷18在河南省南阳市近5年的田间表现,研究降雨量与谷子产量的关系,通过相关性分析和主成分分析法分析谷子产量的影响因素,以期为南阳市谷子的高产栽培技术提供科学依据。结果表明,影响谷子产量的因子从大到小依次为降雨量、穗粒质量、单穗质量、穗粗、穗长、千粒质量、生育期、日照时数、出谷率、株高、穗数;其中产量与降雨量、千粒质量、生育期和株高呈负相关,与降雨量的相关性达显著水平(P<0.05),产量与其他指标呈正相关,与穗粒质量和单穗质量的相关性达显著水平(P<0.05)。降雨量与单穗质量、穗粒质量、穗长、穗粗等谷子主要农艺性状呈负相关;降雨量多时,单穗质量、穗粒质量、穗长、穗粗等农艺性状变小,且谷瘟病、细菌性褐条病等病害发生重,最终导致产量降低。因此,在南阳市种植谷子时应选择地势高、地势平坦、不易积水的地块或丘陵岗坡地;降雨量多的年份要防治谷瘟病和细菌性褐条病。
