搜索结果: 1-10 共查到“plant population”相关记录10条 . 查询时间(0.109 秒)
Research on the Niche of Major Plant Population of the Barren Hillsides in the Arid Valley of the Upper Reach of the Minjiang River
Arid Valley Barren Hillsides Major Plant Population Niche Breadth Niche Overlap Upper Reach of the Minjiang River
2011/12/20
The niche breadths and niche overlaps of Selaginella pulvinata and of other several main species of the herbaceous layer were measured at the barren hillsides in the arid valley of the upper reach of ...
Effect of inter-row spacing and plant population on weed dynamics and maize
Row spacing plant population weed density weed biomass maize yield
2011/1/10
A study was conducted to determine the effects of inter-row spacing (45 and 90 cm) and plant population (40000 and 60000 plants ha-1) on weed biomass and the yield of both green and grain materials of...
GENETIC MECHANISM OF SOME PHYSIOLOGICAL TRAITS IN SPRING WHEAT AT TWO PLANT POPULATION REGIMES
Triticum aestivum genotypes crossbreeding plant population agronomic characters Pakistan
2009/9/29
A study was conducted in the Department of Plant Breeding and Genetics, University
of Agriculture, Faisalabad, Pakistan during 2005. Graphical analysis was made for
7×7 complete diallel cross and ph...
Studies on the Effect of the Relative Humidity of the Atmosphere on the Growth and Physiology of Rice Plants : VI. Effect of ambient humidity on the photosynthetic rate of a rice plant population model
Leaf temperature Photosynthetic rate Population Relative humidity Rice Stomatal aperture
2009/8/6
The effect of ambient humidity on the photosynthetic rate of a rice plant population model (area: 120×60 cm, Planting density: about 40 plants/dm2, leaf area index: 6∼7, plant height: about 30 c...
Cotton Planting Date and Plant Population Effects on Yield and Fiber Quality in the Mississippi Delta
Cotton Planting Date Plant Population Yield Fiber Quality
2009/4/30
Cotton producers in the Mississippi Delta plant in the early spring, but wet, cold weather often develops that may reduce plant population directly or indirectly. Producers must occasionally decide if...
Plant Population and Planting Date Effects on Cotton（Gossypium hirsutum L.）Growth and Yield
Plant Population Planting Date Cotton
2009/4/30
To reduce seed costs, cotton (Gossypium hirsutum L.) producers aim to reduce plant populations without sacrificing yields. Field experiments examining the impact of plant population and plant...
Root Yield and Quality of Sugarbeet in Relation to Sowing Date, Plant Population and Harvesting Date Interactions
Sugar beet sowing date harvest date plant population root yield- quality
2009/1/13
Sowing date, plant density and harvest date are important factors affecting root yield and quality of sugar beet (Beta vulgaris L.). The effects of sowing date (beginning of April, mid-April, the end ...
Studies on Plant Population and Stand Establishment Techniques for Increasing Productivity of Rice in Dera Ismail Khan, Pakistan
rice plant population planting techniques grain yield leaf area index
2008/12/11
Rice production in Pakistan is constraint by many factors pertaining to prevalent planting techniques. A research on the feasibility of new planting techniques (direct seeding on flat, transplanting o...
Effects of Plant Population Density on Net Revenues from Ultra-Narrow-Row Cotton
Plant Population Density Net Revenues Ultra-Narrow-Row Cotton
2008/12/10
A common characteristic of ultra-narrow-row cotton (Gossypium hirsutum L.) production is the use of high plant population densities (PPD) compared to wide-row cotton. Farmers are concerned about the h...
Growth Characters, Physiological Parameters, Yield Attributes and Yield as Influenced by the Confectionery Groundnut Varieties and Plant Population
Confectionery groundnut spacing soluble protein nitrate reductase
2010/11/8
Field experiments were conducted at Coconut Research Station, Tamil Nadu Agricultural
University, Aliyar Nagar during Rabi 2002-’03 and Kharif 2003. The treatment consisted of four groundnut varietie...