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农学学报 ›› 2015, Vol. 5 ›› Issue (10): 1-5.doi: 10.11923/j.issn.2095-4050.cjas15030008

• 农艺科学 生理生化 •    下一篇

不同种植模式对矮秆高粱‘晋杂34号’光合特性和产量的影响

李光,白文斌,曹昌林,史丽娟,张建华,彭之东,范娜   

  1. 山西农业科学院高粱研究所,山西农业科学院高粱研究所,山西农业科学院高粱研究所,山西农业科学院高粱研究所,山西农业科学院高粱研究所,山西农业科学院高粱研究所,山西农业科学院高粱研究所
  • 收稿日期:2015-03-11 修回日期:2015-04-20 接受日期:2015-04-24 出版日期:2015-10-30 发布日期:2015-10-30
  • 通讯作者: 白文斌 E-mail:hebe16
  • 基金资助:
    国家科技支撑计划项目“优质高粱高效生产技术研究与示范”(2014BAD07B02);山西省农业科学院科技攻关重点项目“粒用高粱节水高产高:国家科技支撑计划项目“优质高粱高效生产技术研究与示范”(2014BAD07B02);山西省农业科学院科技攻关重点项目“粒用高粱节水高产高

Effects of Photosynthetic Characteristics and Yield of‘Jinza No.34’with Different Plant Patterns

  • Received:2015-03-11 Revised:2015-04-20 Accepted:2015-04-24 Online:2015-10-30 Published:2015-10-30

摘要: 为了探索适宜机械化栽培矮秆耐密高粱品种‘晋杂34 号’生产的种植模式,采用大田试验,研究了不同行距种植模式对‘晋杂34 号’株高、LAI、光合特性、单株生物量、产量及其构成的影响。结果表明:随着行距增大,株距变小,拔节期和抽穗期株高、LAI、光合特性、单株生物量、产量呈降低趋势,而采用宽窄行60 cm:40 cm 处理较等行距种植栽培处理,可显著增加抽穗期株高;可提高拔节期和抽穗期LAI、光合特性各指标;可增加抽穗期和成熟期单株生物量;可显著提高枝梗数、千粒重和产量,比等行距栽培平均增产3.36%~18.81%。本研究表明,行距种植与高粱主要农艺性状、光合特性和产量构成息息相关,采用宽窄行栽培措施可提高‘晋杂34号’光合特性,促进生长发育,获得高产。

关键词: 多溴联苯醚, 多溴联苯醚, 残留, 毒理学效应

Abstract: In order to explore the cropping pattern which is suitable for mechanized cultivation of dwarf denseresistant sorghum‘Jinza No.34’, by a field experiment, the effects of cultivation pattern with different line spacing on plant height, LAI, photosynthetic characteristics, average biomass, yield and yield components of ‘Jinza No.34’were studied. The results showed that there was a downtrend of plant height, LAI, photosynthetic characteristics, average biomass and yield at jointing and heading stages with the increase of line spacing and the decrease of row spacing. Wide-narrow row of 60 cm: 40 cm planting pattern could significantly improve the plant height compared with equal row on heading stage, enhance LAI and photosynthetic characteristics at jointing and heading stages, and increase average biomass at heading and maturity stages. The number of branch, 1000-grain weight and yield were significantly increased by 60 cm: 40 cm planting pattern and the average yield increased by 3.36%-18.81% compared with equal row. The results showed that there was a close relationship between line spacing planting and main agronomic characters, photosynthetic characteristics and yield of sorghum. Wide-narrow row planting could increase photosynthetic characteristics of‘Jinza No.34’, promote its growth and development, and achieve high-yield.