Effect of different planting density on the main agronomic traits of film-mulched wheat
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DOI:10.7606/j.issn.1000-7601.2007.06.15
Key Words: planting density  film-mulched wheat  agronomic trait
Author NameAffiliation
YANG Xiu-lan Tianshui Agricultural SchoolTianshuiGansu 741400China 
NIU Yi-chuan Tianshui Agricultural SchoolTianshuiGansu 741400China 
KANG Hui Tianshui Agricultural SchoolTianshuiGansu 741400China 
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Abstract:
      To further learn about the effect of different planting density on the agronomic traits of plastic film-mulched wheat,we have done some research on different groups of film-mulched wheat to find out what the transformation rules of their agronomic traits are.The result indicated that the single tiller number,the highest total stems and the distance between plots all increased regularly;Plastic film-mulched wheat was smaller than non-film-mulched wheat in the transformation range of single tiller number and the highest total stems.Along with the increasing of density,film-mulched wheat was bigger in the increasing of the distance between plots;The effective ears per area,ears and grains,1000grain-weight and per unit yield all changed along with the changing of density, and the transformation of film-mulched wheat was smaller than the non-film-mulched wheat;Both leaf area index and leaf blade function date are changing as the changing of density;and the film-mulched wheat and non-film-mulched wheat show the same tendency during the course of transformations.The grain plump index of the non-film-mulched wheat cut down with the increasing of density as well as film-mulched wheat.The non-film-mulched wheat was bigger on both the transformation range of the rate of grains and the transformation range of leaves and lodging degrees.