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南京农业大学农学院《Genome Biology》发表多倍体团队“Small RNAs mediate transgenerational inheritance of genome-wide trans-acting epialleles in maize”（图）
多倍体 遗传变异 植物育种
2022/3/23
杂交和回交是常用的动、植物育种手段。杂交引起的父母基因互作导致遗传和表观遗传变异，比如经典的副突变(paramutation）可以跨代遗传。但是，由表观遗传引起的跨代遗传的机理缺乏全基因组水平上的研究。2月9日，南京农业大学多倍体杂种优势研究团队在Genome Biology（IF=13.583）上发表了题为Small RNAs mediate transgenerational inherita...
水分关键期干旱是影响玉米生长和产量的主要限制因子，构建此时期玉米干旱损失模型，研究干旱指数天气保险，对于合理设计天气指数保险和解决目前传统农业保险的困境，转移农业气象灾害风险具有重要意义。针对作物特定阶段单因子气象灾害影响难以剥离的问题，本研究在西北农林科技大学旱作农业长武试验站进行了连续3a的雨养玉米观测试验，利用田间试验数据（玉米生长发育数据、气象数据、土壤数据和田间管理数据）对CERES-M...
Comparative evaluation of maize inbred lines (zea mays l.) according to dus testing using morphological, physiological and molecular markers
DUS Inbred Lines Maize Markers Genetic Distance Diversity
2013/3/5
A major challenge facing those involved in the testing of new plant varieties for Distinctness, Uniformity and Stability (DUS) is the need to compare them against all those of 'common knowledge'. A se...
Accumulation of the betaine and ectoine in osmotic stress adaptation of biocontrol agents against Fusarium verticillioides in maize
Biological Control Osmotic Adaptation Solute Compatible
2013/2/27
The aims of this study was to examine the effect of the osmotic (NaCl) water stress on, growth and accumulation of endogenous compatible solutes of Bacillus amyloliquefaciens and Microbacterium oleovo...
The effects of market factors and government policies on the maize marketing in Iran
Marketing margin market structure agriculture policies maize Iran
2011/2/22
Maize plays a unique role in the agricultural economic of world. It is a key stable crop which is used in a wide range of food industries and as a customary livestock feed in Iran. Also, it is one of ...
Identification of the QTLs for grain yield using RIL population under different nitrogen regimes in maize
Maize (Zea mays L.) grain yield quantitative trait locus
2011/1/12
Quantitative trait locus (QTL) mapping can provide useful information for breeding programs, since it allows the estimation of genomic locations and genetic effects of chromosomal regions related to t...
Fertilizer options for sustainable maize (Zea mays L.) production in the Trans Nzoia district of Kenya
Nzoia district maize variety yield diammonium phosphate
2011/1/11
With increasing human population against declining staple food crop yield trend, food insecurity is inevitable. Soil fertility problem has been identified as a major factor hindering maize productivit...
Evaluation of CERES-maize simulation model results with measured data using water pillow irrigation under semi-arid climatic conditions
CERES-maize model water pillow maize water deficit
2011/1/10
The computer-based CERES-maize model for simulating maize growth and development was used to simulate maize yield in a semi-arid region of Harran Plain of Southeastern Turkey in 2005 and 2006.
A CLIMATE PROFILE INDICATOR BASED COMPARATIVE ANALYSIS OF CLIMATE CHANGE SCENARIOS WITH REGARD TO MAIZE (ZEA MAYS L.) CULTURES
climate changes agriculture seasonality new method
2010/3/26
Using ecological data compiled from scientific literature on pest, pathogen and weed species
characteristic in maize cultures in Hungary, we defined monthly climate profile indicators and applied the...
Trehalose as Osmoprotectant for Maize Under Salinity-Induced Stress
Hill-reaction ion leakage K/Na ratio organic solutes photosynthetic pigments protein
2010/11/15
Response of maize grains (Giza 2) to the pre-soaking treatment with 10 mM trehalose was
studied under salinity-induced stress conditions. Trehalose treatment induced growth of salt-stressed and unstr...
Distribution of Arbuscular Mycorrhizal Fungi in Upland Field Soil of Japan 2.Spore Density of Arbuscular Mycorrhizal Fungi and Infection Ratio in Soybean and Maize Fields
Arbuscular mycorrhizal fungi Available phosphate Infection ratio Phosphate adsorption coefficient Spore density
2009/7/23
In this study, soil samples were collected from upland fields where maize and soybeans had been cultivated and the density of AM (arbuscular mycorrhizal) fungal spores and the percentage of soybean ro...
Spatial rooting patterns of Gliricidia, pigeon pea and maize intercrops and effect on profile soil N and P distribution in southern Malawi
Fertilizer trees roots nutrient distribution Makoka
2010/9/10
The concept of competition or complementarity between tree and crop roots for below ground resources have been a major debate in simultaneous systems. Root studies were conducted in three cropping sys...
The effect of partially acidulated phosphate rock on maize grain YIELD under monoculture growth
maize partially acidulated phosphate rock phosphorus fertilization
2009/4/1
Maize was grown in monoculture throughout the consecutive years 2003-2007 in Nowa Wieś Królewska (52o26’ N; 17o57’ E). A two factorial field experiment was established on a slightly acidic soil, ...
Weather and seasonal effects on growth, seed yield and soluble carbohydrate concentrations in selected maize cultivars in the humid areas of Nigeria.
Maize soluble carbohydrate chlorophyll yield cropping seasons tropics
2009/3/3
A study was conducted in 2001 and 2002 to identify genotypic attributes relevant to performance and adaptation of ten maize cultivars grown on the field in the rainy and in the late seasons (termina...
Hydrothermal effects on the performance of maize and cucumber intercrop in a tropical wet and dry climate in Nigeria
Hydrothermal agro-meteorological precipitation
2010/9/10
Maize and cucumber were intercropped in a simple randomized complete block design (RCBD) with three replicates in two field trials in early and late planting seasons of 2004. The result showed that me...