不同基因型玉米间作对气孔特征和产量的影响
Effects of Intercropping of Different Genotypes of Maize on Stomatal Characteristics and Yield
李方杰 1常志杰 2史大坤 1卫晓轶 1魏锋 1洪德峰 1马俊峰 1郑秋道1
作者信息
- 1. 新乡市农业科学院,河南 新乡 453000
- 2. 西北农林科技大学 旱区农业水土工程教育部重点实验室,陕西 杨凌 712100
- 折叠
摘要
以4个玉米品种[伟育618(WY618)、MY73、豫单9953(YD9953)和郑单958(ZD958)]为材料,设置4个品种单作和3个间作处理,研究不同基因型玉米间作对玉米叶片气孔特征、空间布局和产量的影响,以期从气孔的角度为不同基因型玉米间作提高产量提供理论依据.结果表明,不同基因型玉米间作能够提高产量,其中,在WY618与MY73间作和WY618与ZD958间作中,WY618间作产量比WY618单作分别显著增加9.41%和12.94%;WY618与MY73间作和WY618与ZD958间作中均是WY618更具有产量优势,WY618与ZD958间作的土地当量比为1.08,间作优势最明显,WY618与MY73间作次之;玉米间作能够提高叶片近轴面和远轴面气孔密度、长度、宽度、周长、面积和形状指数,并且使气孔空间布局更加规则合理;叶片远轴面气孔密度、宽度和面积与产量均存在显著正相关关系.综上,不同基因型玉米间作可以改善叶片气孔特征和空间布局,利于产量提高.
Abstract
Using four maize varieties[Weiyu 618(WY618),MY73,Yudan 9953(YD9953)and Zhengdan 958(ZD958)]as materials,four single cropping treatments and three intercropping treatments were set up to study the effects of intercropping of different genotypes of maize on stomatal characteristics,spatial layout and yield of maize,so as to provide theoretical basis for increasing maize yield by intercropping of different genotypes of maize from the perspective of stomata.The results showed that maize yield could be improved by intercropping with different genotypes of maize.For WY618 intercropping with MY73 and ZD958,the yield of WY618 significantly increased by 9.41% and 12.94% compared with WY618 single cropping,respectively,and WY618 had more yield advantage.The land equivalent ratio of WY618 intercropping with ZD958 was 1.08,the intercropping advantage was the most obvious,followed by WY618 intercropping with MY73.Maize intercropping could improve the stomatal density,length,width,circumference,area and shape index in the paraxial and abaxial planes of leaves,and make stomatal spatial layout more regular and rational.The density,width and area of stomata in the distal axial plane of leaves were significantly positively correlated with yield.In conclusion,maize intercropping with different genotypes of maize can improve the stomatal characteristics and spatial layout in leaves,which is conducive to the increase of maize yield.
关键词
玉米/基因型/间作/产量/气孔特征/气孔空间布局Key words
Maize/Genotype/Intercropping/Yield/Stomatal characteristics/Stomatal spatial layout引用本文复制引用
基金项目
现代农业产业技术体系建设项目(CARS-02-68)
河南省科技攻关计划(242102110283)
出版年
2024
国家科技期刊平台
NSTL
万方数据