干旱区生态环境知识资源中心(Arid): 轮耕对宁南旱区冬小麦花后旗叶光合性能及产量的影响

Arid

	轮耕对宁南旱区冬小麦花后旗叶光合性能及产量的影响
其他题名	Effects of Rotational Tillage on Flag Leaf Photosynthetic Characteristics and Yield After Anthesis of Winter Wheat in Arid Areas of Southern Ningxia
	侯贤清 1; 贾志宽 1; 韩清芳 1; 王维 1; 丁瑞霞 1; 聂俊峰 1; 李永平 2
来源期刊	中国农业科学
ISSN	0578-1752
出版年	2011
卷号	44 期号:15 页码:3108-3117
中文摘要	【目的】探索免耕/深松隔年轮耕模式对冬小麦花后光合性能及产量的影响。【方法】采用免耕/深松/免耕、深松/免耕/深松、传统翻耕3种耕作处理,在宁南旱区进行连续4年定位试验,2010年测定小麦花后土壤水分、旗叶面积、叶绿素相对含量、光合特性和产量的变化。【结果】与传统耕作相比(对照),小麦开花期和灌浆期免耕/深松/免耕、深松/免耕/深松处理的0200 cm土壤贮水量平均分别增加15.24%、23.45%(P<0.05);旗叶面积和相对叶绿素含量平均分别提高12.78%、8.89%和25.20%(P<0.05)、11.19%;旗叶日均净光合速率(Pn)平均分别提高1.55和1.68mumol.m-2.s-1(P<0.05);旗叶日均蒸腾速率(Tr)平均分别提高0.44和0.58mmol.m-2.s-1(P<0.05);而小麦旗叶日均水分利用效率(WUE)差异不显著(P>0.05)。在灌浆期,两种轮耕模式均保持了较高的最大光化学效率(0.52)、PSⅡ实际光化学效率(0.40)和光合电子传递速率(92.67)。两种轮耕模式的小麦籽粒产量分别较传统耕作增加6.88%和11.98%(P<0.05)。【结论】在干旱缺水条件下,不同轮耕模式小麦花后都显示出良好的蓄水保墒能力和较高的光合特性,显著提高小麦的产量,是宁南旱区较为适宜的土壤耕作模式。
英文摘要	【Objective】 The objective of the experiment is to seek the effects of no-tillage(NT)/Subsoiling(ST)rotational tillage system every other year on photosynthetic capacity and yield after anthesis of winter wheat.【Method】Based on three tillage treatments of NT/ST/NT,ST/NT/ST and conventional tillage(CT)in arid areas of southern Ningxia,it was investigated by measuring soil water,flag leaf area,chlorophyll relative content,photosynthetic characteristics,chlorophyll fluorescence parameters and yield under different soil tillage treatments after anthesis of wheat in 2010.【Result】 Compared with conventional tillage(CK),the soil water storage in 0-200 cm soil layers of NT/ST/NT and ST/NT/ST was significantly increased by an average of 15.24% and 23.45% at flowering stage and filling stage of wheat,their flag leaf area and chlorophyll relative content were increased by an average of 12.78%,8.89% and 25.20%,11.19%(P<0.05),respectively;their flag leaf daily average photosynthesis rate(Pn)was increased by an average of 1.55 and 1.68 mumol?m-2?s-1(P<0.05),their flag leaf daily average transpiration rate(Tr)was increased by an average of 0.44 and 0.58 mmol?m-2?s-1(P<0.05),but,their flag leaf daily average water use efficiency(WUE)showed no obvious difference.At filling stage,two rotational tillage treatments had a higher level of maximal photochemical efficiency of PSⅡ in the darkness(0.52),actual photochemical efficiency of PSⅡin the light(0.40)and photosynthetic electron transport rate(92.67).Compared with conventional tillage,the different rotational tillage system achieved wheat grain yield increment of 6.88% and 11.98%(P<0.05).【Conclusion】The different rotational tillage systems all showed better soil water conservation ability and high photosynthetic capacity after anthesis of wheat,significantly increased wheat yield under condition of drought and water shortage.So,the different rotational tillage system is a more suitable soil tillage system in arid areas of southern Ningxia.
中文关键词	宁南旱区 ; 轮耕模式 ; 冬小麦 ; 光合特性 ; 叶绿素荧光参数 ; 产量
英文关键词	arid areas of southern Ningxia rotational tillage system winter wheat photosynthetic characteristics chlorophyll fluorescence parameters yield
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4276733
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227462
作者单位	1.西北农林科技大学中国旱区节水农业研究院, 农业部旱地作物生产与生态重点开放实验室, 杨凌, 陕西 712100, 中国; 2.宁夏固原市农业科学研究所, 固原, 宁夏 756100, 中国
推荐引用方式 GB/T 7714	侯贤清,贾志宽,韩清芳,等. 轮耕对宁南旱区冬小麦花后旗叶光合性能及产量的影响[J]. 西北农林科技大学,2011,44(15):3108-3117.
APA	侯贤清.,贾志宽.,韩清芳.,王维.,丁瑞霞.,...&李永平.(2011).轮耕对宁南旱区冬小麦花后旗叶光合性能及产量的影响.中国农业科学,44(15),3108-3117.
MLA	侯贤清,et al."轮耕对宁南旱区冬小麦花后旗叶光合性能及产量的影响".中国农业科学 44.15(2011):3108-3117.