河南农业科学 ›› 2022, Vol. 51 ›› Issue (6): 67-75.DOI: 10.15933/j.cnki.1004-3268.2022.06.007

• 作物栽培·遗传育种 • 上一篇    下一篇

苯肽胺酸对棉花干物质积累、养分吸收和产量的影响

田阳青,马春梅,赵强,吴雪琴,李江余   

  1. (新疆农业大学农学院,新疆 乌鲁木齐 830000)
  • 收稿日期:2022-03-10 出版日期:2022-06-15 发布日期:2022-08-15
  • 通讯作者: 赵强(1981-),男,安徽灵璧人,副教授,博士,主要从事作物化学控制原理与技术研究。E-mail:qiangzhao99@163.com
  • 作者简介:田阳青(1997-),女,新疆阿拉尔人,在读硕士研究生,研究方向:作物化学控制原理与技术。E-mail:3090867085@qq.com
  • 基金资助:
    新疆维吾尔自治区重大科技专项(2520ZZQZD);新疆生产建设兵团第三师四十五团农业推广中心项目(CG2021ZH09)

Effects of Phthalamic Acid on Dry Matter Accumulation,Nutrient Absorption and Yield of Cotton

TIAN Yangqing,MA Chunmei,ZHAO Qiang,WU Xueqin,LI Jiangyu   

  1. (College of Agriculture,Xinjiang Agricultural University,Urumqi 830000,China)
  • Received:2022-03-10 Published:2022-06-15 Online:2022-08-15

摘要: 通过叶面喷施不同质量浓度苯肽胺酸,探究叶面喷施苯肽胺酸对棉花干物质积累、养分吸收量和产量的影响,为苯肽胺酸在棉花上的科学应用提供依据。选择棉花品种闫棉67号作为田间试验材料,以清水为对照(CK),设置叶面喷施133.3 mg/L(P1)、200.0 mg/L(P2)和266.7 mg/L(P3)苯肽胺酸3个用药剂量,于棉花化学打顶前后10 d各进行一次喷雾处理,比较不同质量浓度苯肽胺酸对棉花地上部干物质积累、叶绿素总量和养分吸收的影响。结果表明,喷施不同质量浓度苯肽胺酸能够提高棉花干物质积累量、养分吸收量和叶绿素总量。施药后28 d,P1、P2、P3处理棉花功能叶叶绿素总量较CK分别增加40.48%、61.90%、46.43%;施药后40 d,P1、P2、P3处理生殖器官干质量占比较CK分别提高0.23、12.44、6.66个百分点,P2处理棉花叶片、茎秆、棉铃中全氮积累量较CK分别显著提高23.51%、23.46%、10.35%,P2、P3处理均显著提高棉花各部位对全磷的吸收量,且2个处理棉纤维全钾积累量较CK分别显著提高16.60%、12.53%;P1、P2、P3 棉花产量与CK 相比分别增加0.77%、13.55%、2.00%。综上,叶面喷施200.0 mg/L苯肽胺酸(P2处理)对棉花地上部干物质积累、叶绿素总量、养分吸收和棉花产量的促进效果最好。

关键词: 棉花, 苯肽胺酸, 产量, 干物质积累, 养分吸收, 叶绿素总量

Abstract: The effects of foliar spraying of phthalamic acid with different mass concentrations on dry matter accumulation,nutrient absorption and yield of cotton were explored,so as to provide a certain theoretical basis for the scientific application of phthalamic acid in cotton. With the cotton variety Yanmian 67 as the field test material and clear water as the control,three doses of phthalamic acid,133.3 mg/L(P1),200.0 mg/L(P2)and 266.7 mg/L(P3),were sprayed on the leaves at 10 days before and after chemical topping of cotton. The effects of different mass concentrations of phthalamic amino acid on dry matter accumulation,total chlorophyll content and nutrient absorption of cotton shoots were compared.The results showed that spraying different mass concentrations of phthalamic amino acid could improve the dry matter accumulation,nutrient absorption and total chlorophyll of cotton.At 28 days after application,the total amount of chlorophyll in functional leaves of cotton treated with P1,P2 and P3 increased by 40.48%,61.90% and 46.43% respectively compared with CK;At 40 days after application,the proportim of dry weight of reproductive organs in P1,P2 and P3 treatments increased by 0.23,12.44 and 6.66 percentage points respectively compared with CK.The total nitrogen accumulation in leaves,stems and bolls of P2 treatment was significantly higher than CK,increased by 23.51%,23.46% and 10.35% respectively.P2 and P3 treatments significantly increased the absorption of total phosphorus in all parts of cotton. The total potassium accumulation of cotton fibers in P2 and P3 treatments was significantly higher than CK,increased by 16.60% and 12.53% respectively;Compared with CK,the cotton yields of P1,P2 and P3 increased by 0.77%,13.55% and 2.00% respectively.In conclusion,foliar spraying of 200.0 mg/L phthalamic acid(P2 treatment)had the best promoting effect on aboveground dry matter accumulation,total chlorophyll,nutrient absorption and cotton yield.

Key words: Cotton, Phthalamic acid, Yield, Dry matter accumulation, Nutrient absorption, Total chlorophyll

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