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NITROGEN DOSES AND PLANT DENSITY AFFECT PHENOLOGY AND YIELD OF SWEET CORN

文献类型： 外文期刊

作者： Khan, Zafar Hayat 1 ; Khalil, Shad Khan 1 ; Iqbal, Amjad 2 ; Ullah, Ikram 4 ; Ali, Muhammad 5 ; Shah, Tariq 6 ; Wu, We 1 ;

作者机构： 1.Univ Agr Peshawar, Dept Agron, Fac Crop Prod Sci, Khyber Pakhtunkhwa, Pakistan

2.Abdul Wali Khan Univ, Dept Agr, Mardan 23200, Khyber Pakhtunk, Pakistan

3.Chinese Acad Trop Agr Sci, Hainan Key Lab Trop Oil Crops Biol, Coconut Res Inst, Wenchang 571339, Hainan, Peoples R China

4.Bacha Khan Univ, Dept Plant Breeding & Genet, Charsadda, Khyber Pakhtunk, Pakistan

5.Bacha Khan Univ, Dept Biotechnol, Charsadda, Khyber Pakhtunk, Pakistan

6.Univ Swat, Dept Econ & Dev Studies, Khyber Pakhtunkhwa, Pakistan

7.Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China

关键词： Nitrogen;phenology;plant density;sweet corn;yield components

期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）

ISSN： 1018-4619

年卷期： 2017 年 26 卷 6 期

页码：

收录情况： SCI

摘要： An experiment was conducted at two locations during spring 2008 at the New Developmental Farm (NDF) and the Cereals Crop Research Institute (CCRI). Two landraces of sweet corn Mansehra (MNS) and Swabi (SWB) were planted with Cv. Azam. Furthermore, four densities and N levels were used in randomized complete block (RCB) design with split-plot arrangement. Phenology, yield and yield components responded positively to locations, landraces, nitrogen and density. Signifi-cantly higher number of kernels ear(-1), grain weight and grain yield were found at NDF. Landrace SWB was tasseled and matured late, while Azam was recorded highest for kernel ear(-1) (KPE), total grain weight (TGW) and grain yield (GY) followed by SWB. Moreover, days to tasseling and maturity, KPE, TGW, and GY in N fertilized plots were significantly higher as compared to control. Maxi-mum GY was observed in plots with a density of 100000 plants ha(-1); however, it was comparable to GY obtained under the dense population of the plants (density of 120000 plants ha(-1)).

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