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Optimal agronomical practices package for wheat modelized cultivation management in Beijing area

华北农学报 1993年第S2期8卷 110-117页

作者：赵春江

Based on the principles of system engineering,economics theory and local conditionof production,studies carried out by taking“quadratic-regression-orthogonal-rotational” and ran-domized complete block designs to determine the Optimal agronomical Practices Package（OAPP）for Wheat Modelized Cultivation Management（WMCM）by system *** OAPP was expected to meet various goals of different levels of yield and economicbenefit of middle and high fertility land in Beijing *** cultivar JINGDONG-1（"JD-1"）asan example,the OAPP for grain yield≥6750 kg/ha and net benefit≥360 US （?）/ha was consist-ed as follows:density=195 plants/m2;spring irrigation times=4（stem elongation,booting,flowering,and 20 days after anthesis）;fertilization=150-188 kg N/ha,113-128 kg P2O5/ha.

关键词： wheat agronomical practices package modelized cultivation management system decision-making analysis

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Exploring and Exploiting Pan-genomics for Crop Improvement

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Molecular Plant 2019年第2期12卷 156-169页

作者： Yongfu Tao Xianrong Zhao Emma Mace Robert Henry David Jordan Queensland Alliance for Agriculture and Food Innovation (QAAFI) The University of Queensland Hermitage Research Facility Warwick QLD 4370 Australia Agri-Scienee Queensland Department of Agriculture and Fisheries (DAF) Hermitage Research Facility Warwick QLD 4370 Australia Queensland Alliance for Agriculture and Food Innovation (QAAFI) The University of Queensland Brisbane QLD 4072 Australia These authors contributed equally to this article.

Genetic variation ranging from single-nucleotide polymorphisms to large structural variants (SVs) can cause variation of gene content among individuals within the same species. There is an increasing appreciation that a single reference genome is insufficient to capture the full landscape of genetic diversity of a species. Pan-genome analysis offers a platform to evaluate the genetic diversity of a species via investigation of its entire genome repertoire. Although a recent wave of pan-genomic studies has shed new light on crop diversity and improvement using advanced sequencing technology, the potential applications of crop pan-genomics in crop improvement are yet to be fully exploited. In this review, we highlight the progress achieved in understanding crop pan?genomics, discuss biological activities that cause SVs, review important agronomical traits affected by SVs, and present our perspective on the application of pan-genomics in crop improvement.

关键词： pan-genome dispensable genes core genes structural variation crop improvement agronomical traits

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Distribution, Enrichment and Accumulation of Heavy Metals in Soil and <i>Trigonella foenum-graecum</i>L. (Fenugreek) after Fertigation with Paper Mill Effluent

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Open Journal of Metal 2013年第2期3卷 8-20页

作者： Vinod Kumar Ashok Kumar Chopra Department of Zoology and Environmental Science Gurukula Kangri University Haridwar India

The aim of the study was to investigate distribution, enrichment and accumulation of heavy metals in soil and Trigonella foenum-graecum (var. Pusa Early Bunching) after fertigation with paper mill effluent. Doses of paper mill effluent viz. 5%, 10%, 25%, 50%, 75% and 100% were used for fertigation of T. foenum-graecum along with bore well water (control). The results revealed that paper mill effluent had significant (P +, K+, Ca2+, Mg2+, Fe2+, TKN, PO3-4, SO2-4, Cd, Cr, Cu, Mn and Zn of the soil in both seasons. Insignificant (P > 0.05) changes in WHC and bulk density of the soil were observed after irrigation with paper mill effluent. The agronomical performance of T. foenum-graecum was increased from 5% to 25% concentration and decreased from 50% to 100% concentration of paper mill effluent as compared to control in both seasons. The heavy metals concentration was increased in T. foenum-graecum from 5% to 100% concentrations of paper mill effluent in both seasons. Biochemical components like crude proteins, crude fiber and crude carbohydrates were found maximum with 25% paper mill effluent in both seasons. The enrichment factor (Ef) of various heavy metals was in order of Cd > Mn > Cr > Cu > Zn > Fe for soil and Mn > Cu > Cr > Cd > Zn > Fe for T. foenum-graecum plants after fertigation with paper mill effluent. Therefore, paper mill effluent can be used as a biofertigant after appropriate dilution to improve yield of T. foenum-graecum.

关键词： Trigonella foenum-graecum agronomical Characteristics Enrichment Factor Fertigation Heavy Metals Paper Mill Effluent

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