{"product_id":"breeding-studies-on-maize-tolerance-to-low-nitrogen-fertilization-von-maamoun-elmoselhy","title":"Breeding studies on maize tolerance to low nitrogen fertilization","description":"\u003cp\u003eThis study was meant to provide genetic  information about selection among maize hybrids for  NUE, and to evaluate the role of combining ability  of inbred lines in hybrid performance under N- limited conditions.Results showed that:1)High  tolerance and high response(HH),hybrids 7-5x12-3 and  7-5x145-1. 2)High tolerance and low response(HL),  hybrids 100x224 and 421-2xSC-10. 3)Low tolerance and  high response(LH), hybrids 32-3x308 and 308x290-3- 2.4)Low tolerance and low response(LL), hybrids  100x158 and 100x421-2. NUE at low N was  significantly correlated with yield at high N. Grain  yield was positively significantly correlated with  chlorophyll concentration, ear diameter, biomass  yield, kernel number\/plant. Most of studied traits  of hybrids showed larger heritability under low N  than under high N. Direct selection for grain yield  at low N was likely to be more efficient than  indirect selection for grain yield at high N for  improving grain yields under low N. Both GCA and SCA  are equally important for genetic variability in  performance of mean yield over N levels, but for  grain yield and NUE at high N, GCA plays a greater  role than SCA.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838378510\"\u003e\u003ch3\u003eBreeding studies on maize tolerance to low nitrogen fertilization\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838378510","offer_id":39498943103069,"sku":"9783838378510","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/d3184336-7f60-426a-89ea-b2db6a8b4e3d.jpg?v=1759294230","url":"https:\/\/shop.autorenwelt.de\/products\/breeding-studies-on-maize-tolerance-to-low-nitrogen-fertilization-von-maamoun-elmoselhy","provider":"Autorenwelt Shop","version":"1.0","type":"link"}