نتایج جستجو برای: wheat grain yield
تعداد نتایج: 287126 فیلتر نتایج به سال:
Wheat is one of the most widely distributed crops worldwide and is of primary importance as food for human nutrition. Increasing the productivity of the new wheat varieties according to the specific climate of the region is a permanent major task. The impact of environment and some agronomy practices (previous crop and mineral fertilization) on the productivity and the structural elements of yi...
Requirement for replacement of energy and fuels from fossil sources by renewable sources also leads to utilization of domestic and local sources of biomass convertible to biofuel. Moreover former and actual troubles in nuclear energy generation could intensify this trend too. Renewable source for biofuel production in countries of temperate zone is also wheat as crop with relatively simply grow...
The experiment was conducted on farmer’s field at District Lakki Marwat (NWFP) during Rabi (spring) 2007-08, in order to study the response of wheat to different soil treatments irrigated with poor quality irrigation water. The treatments including control, tillage, gypsum and sulphuric acid were applied before sowing of the wheat crop. The treatments were arranged in a randomized complete bloc...
The pressure of economic cost and environmental constraints dictates that farmers must optimize the use of nitrogen fertilizer. Industrial uses of new wheat varieties require specific and stable grain protein concentration, which needs accurate estimation of N demand during the crop cycle. Thus breeding for high N use efficiency (NUE) and yield, whilst maintaining high grain protein concentrati...
Wheat is an important dietary source of zinc (Zn) and other mineral elements in many countries. Dietary Zn deficiency is widespread, especially in developing countries, and breeding (genetic biofortification) through the HarvestPlus programme has recently started to deliver new wheat varieties to help alleviate this problem in South Asia. To better understand the potential of wheat to alleviate...
Pre-harvest prediction of winter wheat (Triticum aestivum L.) grain yield and/or protein could assist farmers in generating yield maps and reliable product marketing. This study was conducted to determine the relationship between spectral measurements (taken from Feekes growth stage 8 to physiological maturity) and grain yield and grain protein. Spectral measurements were taken using photodiode...
Post-anthesis drought stress is the most important problem affecting wheat production in dryland fields, specially in Mediterranean regions. The main objective of this research was to evaluate drought tolerance indices in dryland wheat genotypes under post-anthesis drought stress. The research was including two different experiments. In each experiment, twenty dryland bread wheat genotypes were...
1 Wheat Research Center, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh ABSTRACT. Twenty five spring wheat genotypes were evaluated for terminal heat stress tolerance in field environments in the Agro Ecological Zone-11 of Bangladesh, during 2009-2010 cropping season. The experiments were conducted at Wheat Research Centre, Bangladesh Agricultural Research Institute, using rand...
line s-80-18 (deberia) a spring bread wheat line with pedigree of hd160/5/tob/cno/23854/3/nai60//tit/son64/4/lr/son64 was selected from the high temperature wheat yield trial, received from cimmyt and evaluated at zabol research station in 1994-95 cropping season. as a superior line, it was advanced to the preliminary yield trial at zabol station in 1995-96 cropping season. due to high grain yi...
this study was undertaken to investigate the effect of long-term reduced tillage on grain yield, grain quality, and weed infestation of spring wheat. the experimental variables were three tillage systems: (a) conventional tillage (ct): shallow ploughing (10-12 cm) and harrowing after harvest of the previous crop, ploughing (25-30 cm) in the autumn; (b) reduced tillage (rt): only a cultivator (1...
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