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	1. Review: on maize grain harvest mechanization and its influencing factors
	Mukti Marasini,Zhang Guiping,Zhang Shunfeng,Guan Xia,Liu Yao,Zhang Fenglu
	Agronomy 15 July 2019
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	Abstract:Mechanically harvesting is important indicator of technology transformation in agricultural production, increase farm efficiency, income and productivity and solves the contradiction between labour shortage and maize production, but often increase the grain lost, ear lost and breakage percentage due to high grain moisture content at harvest which is the key problem of harvest mechanization in maize production. This paper reviewed relationship between the grain moisture content and its relation to grain filling, agronomy character and management, genetic character and environmental factor. The effect of moisture content on these factor and provide the possible way to increase the harvest mechanization also analyzed. The result provide a basis for increase maize mechanization harvest by selecting suitable varieties with the fast dehydration rate and adopt to the environmental condition. Improvement of maize varieties should done through the breading in concern of yield and quality, lodging resistance, fast dehydration rate and low moisture content at physical maturity.
	TO cite this article:Mukti Marasini,Zhang Guiping,Zhang Shunfeng, et al. Review: on maize grain harvest mechanization and its influencing factors[OL].[15 July 2019] http://en.paper.edu.cn/en_releasepaper/content/4749379


	2. Mapping QTLs for Rice Heat Tolerance at Heading Stage
	Zhang Changquan,Chenfei,Hongran,Li Qianfeng,Liu Qiaoquan
	Agronomy 25 April 2017
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	Abstract:In this paper, a japonica rice (Oryza sativa L.) variety Nipponbare, an indica variety 9311 and a set of chromosome segment substitution lines (CSSLs) which were generated using Nipponbare as the recipient parent and 9311 as the donor parent were used as the experimental materials. The CSSLs were grown in 2012 (normal temperature condition) and 2013 (high temperature condition) in Yangzhou, Jiangsu, and were used to map the quantitative trait loci (QTLs) for heat tolerance, based on the heat tolerance index [(The seed setting rate under normal temperature condition - The seed setting rate under high temperature condition) / The seed setting rate under normal temperature condition]. As a result, three QTLs for heat tolerance in rice were mapped on chromosomes 2, 4 and 12, respectively. They had LOD (logarithm of odds) scores of 2.56, 4.02 and 2.79, and contribution rates of 4. 95%, 7.99% and 5.44%. Among them, qHT12.1 showed positive effect, while qHT2.1 and qHT4.1 showed negative effect on heat tolerance. The results lay a foundation for the fine mapping and cloning of the QTLs and genes related to heat tolerance, and for the breeding of heat-tolerant rice varieties.
	TO cite this article:Zhang Changquan,Chenfei,Hongran, et al. Mapping QTLs for Rice Heat Tolerance at Heading Stage[OL].[25 April 2017] http://en.paper.edu.cn/en_releasepaper/content/4729165

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	3. Experiment on influencing factors of cutting performance of cotton stalk cutting blade
	Song Zhanhua,Gao Tianhao,Li Yudao,Yan Yinfa,Li Fade
	Agronomy 30 May 2016
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	Abstract:In order to study the cutting performance and optimize the working parameters of cotton stalk cutting blade thus providing technical support for designing the cotton stalk cutter and harvesting equipment, using the harvesting and ripe cotton stalks as experimental material, the cutting test was performed in the microcomputer control electronic universal testing machine for different cutting blades with a self-made cutting device. An investigation was undertaken to study the effect of thickness of blade, blade angles, clamping angles, gap and the blade form combination of moving and stationary blade on the unit cutting force and the unit area cutting power of cotton stalk. The response surface analysis method was used to optimize the working parameters of the cutting blade. Through the test, the optimal combination of the cotton stalk cutting blade was achieved, it was that the form of moving and stationary blade was all sawtooth, the gap between the moving and the stationary blade was 0.32 mm, the thickness of the blade was 6.02 mm, the clamping angle was 47.04 and the blade angle was 28.05 . Under this condition, the unit cutting force of cotton stalk and the unit area cutting power of cotton stalk were the minimum, they were 4.8 N/mm2 and 57.4 kJ/m2 respectively. In application, the ultimate optimal combination of the cotton stalk cutting blade was that the form of moving and stationary blade was all sawtooth, the gap between the moving and the stationary knife was 0.3 mm, the thickness of the blade was 6 mm, the clamping angle was 47 and the blade angle was 28 . Under this condition, the unit cutting force of cotton stalk was 4.9 N/mm2 and the unit area cutting power of cotton stalk was 56.6 kJ/m2. This showed that the optimization result of the response surface analysis method was reliable and scientific.
	TO cite this article:Song Zhanhua,Gao Tianhao,Li Yudao, et al. Experiment on influencing factors of cutting performance of cotton stalk cutting blade[OL].[30 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4689120


	4. Sequence analysis of a plasmid from wheat blue dwarf phytoplasma
	CHEN Wang,LI Yan,LIU Shubin,WU Yunfeng
	Agronomy 17 December 2013
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	Abstract:A plasmid of wheat blue dwarf (WBD) phytoplasma, named pWBDa, were cloned. It was 3449bp in length. Sequence analysis revealed that four proteins were encoded by this plasmid, including two secreted protein and four membrane proteins. Replication-associated protein (RepA), cop number control protein (Cop) and single-stranded DNA-binding protein (SSB) were found in these four proteins.
	TO cite this article:CHEN Wang,LI Yan,LIU Shubin, et al. Sequence analysis of a plasmid from wheat blue dwarf phytoplasma[OL].[17 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4576092


	5. Based on Infrared Thermal Imaging Technology in Rice Water Stress Index Test
	GAO Mingchao,ZHANG Wenzhong,HAN Yadong,YAO Chen,WANG Yitao,DING Guohua,ZHANG Zhenyu
	Agronomy 28 February 2013
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	Abstract:Observed by infrared thermal imaging technology, in the test rice canopy temperature were measured under different irrigation conditions, taking the Idso empirical model to determine the lower bound equation of the canopy-air temperature differences, and so to get the best period of observing the rice water deficit by the CWSI, in addition the relationship of the CWSI, soil water content and transpiration rate were also analyzed. The preliminary test analysis showed that the CWSI can reflect the rice water stress conditions well.
	TO cite this article:GAO Mingchao,ZHANG Wenzhong,HAN Yadong, et al. Based on Infrared Thermal Imaging Technology in Rice Water Stress Index Test[OL].[28 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4524293


	6. Laboratory investigation of the effects of straw and simulated root exudates on aggregate -associated carbon
	Ma Hongliang,Zhu jianguo,Xie zubin,Gao ren
	Agronomy 31 October 2012
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	Abstract:Although the enhancement in NPP (Net Primary Productivity) and increases in the soil C content by CO2 enrichment also found, little in known about how increased residue inputs to soils affect the storage of the soil organic C (SOC) in agricultural ecosystems and whether the additional root carbon input may affect the formation of soil aggregates and the information regarding their contribution to aggregate dynamics is insufficient. A simulated experiment was conducted to determine the effects of straw (rice and wheat) and root exudates (glucose, phenol, and organic acids) on the both dynamics and carbon content of soil aggregates with respect to the effects of elevated CO2. The results showed that the soil carbon for macro- (>250 μm) and micro-aggregates (250-53 μm) increased by 8.8%-73.1% due to the addition of straw and by 11.2%-111.7% (P<0.05) due to the exudates. Conversely, the soil carbon in the clay and silt-sized particles (<53 μm) was decreased by 12.3%-22.1% (P<0.05) by glucose and decreased even further with the addition of straw, whereas it was increased only by 5.8%-11.8% with phenol and organic acid. Further more, we found that the distribution of aggregates >53 μm was increased by the addition of straw and significantly increased by glucose and organic acid. The carbon concentration was significantly decreased by the addition of straw for the >250 μm and by glucose for >53 μm; conversely, the carbon concentration was increased by phenol and organic acid for both >250 μm and <53 μm. These results could help to explore the effects of elevated CO2 on the dynamics of both soil aggregates and carbon that may occur in a field due to variations in the crop straw and root exudate levels.
	TO cite this article:Ma Hongliang,Zhu jianguo,Xie zubin, et al. Laboratory investigation of the effects of straw and simulated root exudates on aggregate -associated carbon[J].


	7. Sorption, desorption and mobility characteristics of a novel fungicide pyrazoxystrobin in three agricultural soils
	Liu Xunyue,Ding Xingcheng
	Agronomy 20 January 2012
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	Abstract:Pyrazoxystrobin, (E)-methyl 2-(3-((3-(4-chlorophenyl)-1-methyl- 1H -pyrazol-5-yloxy) methyl) phenyl) -3 - methoxyacrylate, is a novel fungicide developed in China. The adsorption, desorption and mobility characteristics of pyrazoxystrobin on three agricultural soils were studied by using 14C labeled compound. The adsorption of pyrazoxystrobin in soils was correlated to soil organic matter content and soil pH and the sorption has been observed in the order of S2>S1>>S3. Desorption was reflect some of the interactions involved between the pesticides and the soil components, soil pH seems to more influence to pyrazoxystrobin desorption and only about 2.54 to 6.41% of adsorbed pyrazoxystrobin was released. The mobility result, minimum of 95.02% compound residued in the upper 4.0 cm layer, demonstrated the use of pyrazoxystrobin as a fungicide is likely to be safe to groundwater.
	TO cite this article:Liu Xunyue,Ding Xingcheng. Sorption, desorption and mobility characteristics of a novel fungicide pyrazoxystrobin in three agricultural soils[OL].[20 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4463029


	8. Effect of Cryptococcus laurentii and calcium chloride on reduction of Penicillium expansum and Botrytis cinerea infections in pear fruit
	YU Ting,LU Huangping,ZHENG Xiaodong
	Agronomy 26 October 2011
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	Abstract:This study was conducted to evaluate the efficacy of the biocontrol yeast Cryptococcus laurentii and calcium chloride (CaCl2) in suppressing the blue and gray mold rots of pear and to explore possible mode of action involved. The results showed that the combined treatment of pear fruit wounds with C. laurentii and CaCl2 at 2% (w/v) resulted in a significantly improved inhibition of Penicillium expansum and Botrytis cinerea infections in comparison with the application of C. laurentii alone. CaCl2 neither affected the growth of C. laurentii in vitro or in vivo, nor directly inhibited the blue mold in pear fruit wounds, however, it induced the fruit resistance to the blue mold rot when the time interval between CaCl2-treatment and pathogen-inoculation was up to 24 h, being associated with an activation of the peroxidase activity of pear fruit. Therefore, it could be concluded that the mechanism by which CaCl2 reinforced the biocontrol efficacy of C. laurentii against the mold infections was mainly due to its ability to inducing the fruit natural resistance.
	TO cite this article:YU Ting,LU Huangping,ZHENG Xiaodong. Effect of Cryptococcus laurentii and calcium chloride on reduction of Penicillium expansum and Botrytis cinerea infections in pear fruit[OL].[26 October 2011] http://en.paper.edu.cn/en_releasepaper/content/4447456


	9. Prophenoloxidase-1 (PPO1) cDNA clone and its expression in Diamondback moth Plutella xylostella
	Xue Chaobin,Luo Wanchun
	Agronomy 10 December 2010
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	Abstract:Phenoloxidase (PO) is a key enzyme in insect development, responsible for catalyzing the hydroxylation of tyrosine into o-diphenols and the oxidation of o-diphenols into o-quinones. In this paper, the prophenoloxidase-1 (PxPPO1) cDNA of Plutella xylostella was cloned by means of reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE). The full-length cDNA consisted of 2838bp, containing an open reading frame (ORF) of 2049bp which encoding 682 amino acids. The molecular mass of the deduced amino acids and the active enzyme was predicted to be 78.56kDa and 72.65 kDa, respectively. The calculated pI was 6.43. BLASTp search and neighbor-joining analysis showed that the deduced amino acid sequence had a high identity to the published sequence of PPO1 from other lepidopterous insects, ranging from 70.5% to 74.6%. Protein signature analysis revealed three conserved regions, including the two copper binding sites characteristic of arthropod PPOs. Semi-quantitative RT-PCR and Real-time PCR indicated that the highest amount of PxPPO1 transcripts in eggs or the 4th instar larvae, followed by the 2nd, the 3rd instar larvae, prepupae and pupa.
	TO cite this article:Xue Chaobin,Luo Wanchun. Prophenoloxidase-1 (PPO1) cDNA clone and its expression in Diamondback moth Plutella xylostella[OL].[10 December 2010] http://en.paper.edu.cn/en_releasepaper/content/4396723


	10. Effects of applying byproduct from flue gas desulfurization in batches on sodic soils quality and sunflower growth
	Wang Jinman
	Agronomy 11 January 2010
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	Abstract:In order to study the application mode of By-product from Flue Gas Desulfurization (BFGD) used to reclaim sodic soils, the field plot experiment of sunflower was conducted to analyze effects of two application modes, applying BFGD in batches and applying BFGD only once, on the physical and chemical properties of two sodic soils (in sodic soil I, ESP=19.8; in sodic soil II, ESP=46.9) and the sunflower production. The results indicated that ESP and pH of the top 40cm soil decreased significantly, and germination rate, dry matter weight and sunflower production increased after applying BFGD in all the treatments. The soil EC in the top 40 cm soil appreciably increased in initial stage after applying BFGD. However, it was lower after two years than that in initial stage and soil EC was less than, or close to the value before the experiment. The mode of applying BFGD in batches was better than that of applying it only once because the mode of applying BFGD in batches could decrease the accumulation of soil salts and promote the dissolution of CaSO4 .The ESP of sodic soil I and sodic soil II reduced to 13.5 and 14.9 respectively, their pH reduced to 8 and 8.4 respectively, and sunflower production increased by 1630.80 kg昲m-2 and 1315.65 kg昲m-2 respectively in the most effective treatments of applying BFGD in batches. In contrast to the mode of applying BFGD only once, the soil pH decreased by 4.76% and 2.33% in sodic soil I and sodic soil II, ESP decreased by 8.78% and 24.75%, germination rate increased by 4.71% and 17.57% and sunflower production increased by 12.95% and 17.52%.If the drainage was in good condition and the byproduct was applied at right rate, the salts of soil top layer would not be accumulated.
	TO cite this article:Wang Jinman. Effects of applying byproduct from flue gas desulfurization in batches on sodic soils quality and sunflower growth[OL].[11 January 2010] http://en.paper.edu.cn/en_releasepaper/content/38773

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