| 种植方式对夏玉米光合特性与产量的影响 |
| |
| 引用本文： | 张倩,张洪生,赵美爱,姜雯.种植方式对夏玉米光合特性与产量的影响[J].玉米科学,2012,20(5):102-105. |
| |
| 作者姓名： | 张倩 张洪生 赵美爱 姜雯 |
| |
| 作者单位： | 青岛农业大学农学与植物保护学院/山东省旱作农业技术重点实验室,青岛,266109 |
| |
| 基金项目： | 公益性行业(农业)科研专项(nyhyzx07-003,200903007);粮食丰产科技工程(2011BAD16B09-03);山东省“泰山学者建设工程”专项经费 |
| |
| 摘 要： | 试验选用当地主栽夏玉米品种郑单958,比较分析不同种植方式对夏玉米光合特性与产量的影响。结果表明,在相同种植密度(6.75万株/hm2)条件下,与对照常规等行距种植方式相比,三行靠、四行靠和五行靠种植方式光合速率(Pn)、气孔导度(Cond)、蒸腾速率(Tr)均有不同程度增加,处理间叶片SPAD值、光合速率差异未达到显著水平。四行靠种植方式气孔导度、蒸腾速率最高,等行距种植方式胞间CO2浓度(Ci)最高。子粒灌浆后期等行距种植方式SPAD值、灌浆速率下降速度最快。收获期三行靠、四行靠、五行靠种植方式子粒产量分别比等行距种植方式增加10.58%、6.54%、12.06%,但处理间差异未达到显著水平。
|
| 关 键 词： | 夏玉米 种植方式 光合特性 产量 |
Effects of Cropping Patterns on Photosynthesis Characteristics and Yield of Summer Maize |
| |
| ZHANG Qian
,
ZHANG Hong-sheng
,
ZHAO Mei-ai
,
JIANG Wen.Effects of Cropping Patterns on Photosynthesis Characteristics and Yield of Summer Maize[J].Journal of Maize Sciences,2012,20(5):102-105. |
| |
| Authors: | ZHANG Qian ZHANG Hong-sheng ZHAO Mei-ai JIANG Wen |
| |
| Institution: | (Qingdao Agricultural University,Shandong Key Laboratory of Dryland Farming Technology,Qingdao 266109,China) |
| |
| Abstract: | The effect of different cropping patterns on the photosynthesis characteristics of summer maize were studied with a local popular cultivar.The results showed that under the planting density with 6.75×104 plants/ha,compared with the conventional uniform row spacing pattern(60 cm),the photosynthesis rate,stomatal conductance,transpiration rate all increased under the three cropping patterns,i.e.,three-row strip,four-row strip and five-row strip treatments.However,the increase of either SPAD or photosynthesis rate was insignificant.Among all cropping patterns,four-row strip showed highest,stomatal conductance and transpiration rate,and CK showed highest intercellular CO2concentration At the late grain filling stage,the filling rate decreased most quickly under the conventional uniform row spacing pattern(CK),and the kernel yield increased by 10.58%,6.54%,12.06% under three-row strip,four-row strip and five-row strip treatment,respectively,while the increase did not reach the significant level. |
| |
| Keywords: | Summer maize Cropping pattern Photosynthesis characteristic Yield |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
