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

doi:10.11923/j.issn.2095-4050.cjas15030008

Journal of Agriculture ›› 2015, Vol. 5 ›› Issue (10): 1-5.doi: 10.11923/j.issn.2095-4050.cjas15030008

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

Abstract

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.

References

[1] 卢庆善.高粱学[M].北京:中国农业出版社,2001:189-190.
[2] Andrade F H, Calvino P, Cirilo A, Barbieri P. Yield responses to narrow rows depend on increased radiation interception. Agron J, 2002, 94: 975–980.
[3] Reta-Sanchez D G, Fowler J L. Canopy light environment and yield of narrow-row cotton as affected by canopy architecture. Agron J, 2002, 94: 1317–1323.
[4] Sharratt B S, Mcwilliams D A. Microclimatic and rooting char-acteristics of narrow-row versus conventional-row corn. Agron J, 2005, 97: 1129–1135.
[5] Mousavi S G R, Seghatoleslami M J, Arefi R. Effect of N fertilization and plant density on yield and yield components of grain sorghum under climatic conditions of Sistan, Iran[J]. Plant Ecophysiology,2012(4):141-149.
[6] 沈秀瑛,戴俊英,胡安畅,等.玉米群体冠层特性与光截获及产量关系的研究[J]作物学报, 1993, 19(3): 246–252.
[7] 李猛,蔡宗兴,万明长,等.不同种植方式对玉米产量的影响[J]贵州农业科学,1999, 27: 53.
[8] 武志海,张治安,陈展宇,等.大垄双行种植玉米群体冠层结构及光合特性的解析[J]玉米科学, 2005, 13(4): 62–65.
[9] 刘武仁,郑金玉,罗洋,等.玉米宽窄行种植技术的研究[J].吉林农业科学,2007,32(2):8-10,13.
[10]贾东海,王兆木,林萍,等.不同种植密度和施肥量对新高粱 3 号产量及其含糖量的影响[J].新疆农业科学,2010,47(1):47-53.
[11]屏亚,程延年.玉米密度与产量因素关系的研究[J].北京农业科学,1995,13(1):23-25.
[12]辽宁农业科学院.中国高粱栽培学[M].北京:农业出版社,1988.
[13]刘武仁,郑金玉,冯艳春,等.玉米宽窄行交替休闲保护性耕种的土壤水分变化规律研究[J].玉米科学,2006(04):114-116,124.
[14]刘朝巍.玉米宽窄行交替休闲种植研究[D].兰州:甘肃农业大学,2009.
[15]赵甘霖,丁国祥,刘天朋,等.宽窄行和等行距栽培条件下高粱种植密度与产量的关系研究[J].农学学报, 2013,3(08):11-13.