Dezhou Academy of Agricultural science
Dezhou Academy of Agricultural science
CHEN G.F.,Shandong Agricultural University |
CHEN G.F.,Dezhou University |
WU R.G.,Dezhou Academy of Agricultural science |
LI D.M.,Dezhou University |
And 3 more authors.
Journal of Genetics | Year: 2017
Seeding emergence and tiller number are the most important traits for wheat (Triticum aestivum L.) yield, but the inheritance of seeding emergence and tillering is poorly understood. We conducted a genomewide association study focussing on seeding emergence and tiller number at different growth stages with a panel of 205 elite winter wheat accessions. The population was genotyped with a high-density Illumina iSelect 90K SNPs assay. A total of 31 loci were found to be associated with seeding emergence rate (SER) and tiller number in different growth stages. Loci distributed among 12 chromosomes accounted for 5.35 to 11.33% of the observed phenotypic variation. With this information, 10 stable SNPs were identified for eventual development of cleaved amplified polymorphic sequence markers for SER and tiller number in different growth stages. Additionally, a set of elite alleles were identified, such as Ra_c14761_1348-T, which may increase SER by 13.35%, and Excalibur_c11045_236-A and BobWhite_c8436_391-T, which may increase the rate of available tillering by 14.78 and 8.47%, respectively. These results should provide valuable information for marker-assisted selection and parental selection in wheat breeding programmes. © 2017 Indian Academy of Sciences
Zhai Z.,Chinese Academy of Agricultural Sciences |
Li Y.,Chinese Academy of Agricultural Sciences |
Guo J.,Dezhou Academy of Agricultural science |
Wang J.,Chinese Academy of Agricultural Sciences |
And 3 more authors.
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2017
Given the common problem of plow pan which affects the growth of crops in Huang-Huai-Hai Plain (HHHP), agronomists are calling for a management practice to ameliorate plow pan. Little information is currently available on the effects of breaking the plow pan partially or thoroughly on the soil water content, penetration resistance and crop growth in HHHP. In order to better understand the effect of plow pan on soil water retention and crop yield, 4 treatments were conducted including the original plow pan (RT15), breaking the plow pan by 1/3 of thickness (DL20), breaking the plow pan by 2/3 of thickness (DL25) and breaking the plow pan thoroughly (DL40) in the HHHP, aiming to explore the effect of different thickness of plow pan on soil water characteristics, the dynamics of penetration resistance and crop yield. The result showed that breaking the plow pan could reduce the bulk density and penetration resistance for 10-30 cm soil layer significantly, with a trend of DL40 < DL25 < DL20 < RT15. Breaking plow pan could increase water infiltration after irrigation or rainfall, and the average soil water content of 20-70 cm soil layer increased by 5.3%-23.6% and 7.7%-15.8% compared with RT15 treatment at seedling stage of summer maize and winter wheat separately. Because of uneven seasonal distribution of precipitation in HHHP, breaking the plow pan was beneficial for winter wheat to make full use of soil water in the deep soil layers, and could reduce the ineffective dissipation of soil water by promoting the water storage during summer maize season. The water consumption of DL20, DL25 and DL40 treatment increased by 4.9%, 10.2% and 11.6% separately compared with RT15 during winter wheat season, however, the water consumption of DL20, DL25 and DL40 treatment decreased by 5.8%, 7.6% and 10.5% respectively compared with RT15 during summer maize season. Because of the influence of temperature, soil water content, tillage practice and crop growth, the dynamic changes of penetration resistance under different topsoil structures were different from each other. The dynamic changes of penetration resistance of 0-15 and 15-30 cm during winter wheat season were similar with that of 0-15 and 15-30 cm during summer maize season. However, the penetration resistances of 30-45 cm under different treatments at the late growth stage of winter wheat and summer maize were different from each other. The penetration resistance of 30-45 cm under different treatments at the late growth stage of winter wheat was manifested as DL40 > DL25 > DL20 > RT15, while that of summer maize was DL40 < DL25 < DL20 < RT15. Compared with traditional topsoil structure, breaking plow pan could improve water use efficiency, and eventually promoted crop yield. However, the highest yields of winter wheat and summer maize were found at DL25, and the crop yield of the treatment with plow pan broken thoroughly (DL40) was relatively lower. Considering the yield of winter wheat and summer maize under DL40 treatment decreased by 4.2% and 2.4% respectively compared to DL25, the relatively better way to transform the plow pan without consuming much energy was DL25 which not only possessed permeable performance, but also could promote the crop yield. © 2017, Editorial Department of the Transactions of the Chinese Society of Agricultural Engineering. All right reserved.
Li H.-S.,Shandong Academy of Agricultural Sciences |
Cao X.-Y.,Shandong Academy of Agricultural Sciences |
Song J.-M.,Shandong Academy of Agricultural Sciences |
Liu P.,Dezhou Academy of Agricultural science |
And 5 more authors.
Acta Agronomica Sinica | Year: 2017
Wheat seeds are developed in a spatial-temporal order resulting in different grain weights and protein contents in different positions of spike. Dissecting the position effect of grain weight and protein content is helpful to go into the mechanism of yield and quality formation. This study was carried out in the 2009-2010 and 2010-2011 winter wheat seasons with four varieties in three quality types. The dynamic changes of grain weight, protein accumulation and protein content were measured according to spikelet-grain position. Variations of grain weight and protein accumulation affected by spikelet-grain position were greater than those by environment (year) or genotype. Variation of protein content affected by environment was larger than that by genotype or spikelet-grain position, however, the spikelet-grain position was the first affecting factor at maturity stage. Large-grain variety was more sensitive to environment, whereas, small-grain variety was relatively stable. During grain filling, the protein content of strong-gluten wheat was higher than that of medium-gluten wheat, and influenced greatly by filling stage and environment. The single grain weight, protein content, and protein accumulation of superior grains were significantly higher than those of inferior grains during the grain-filling period, and the mid-position grains were significantly superior to the upper- and lower-position grains. However, the difference between mid- and lower-position grains became smaller with the filling process, until no significant difference for protein content at maturity stage (36 days after flowering). For each genotype or spikelet-grain position, the dynamics of single grain weight and protein accumulation showed an "S" curve (slow-fast-slow) and the dynamics of protein content showed a "V" curve (high-low-high). During the late filling stage, the supervisor grains in mid- and lower-positions, as well as inferior grains in lower-position had faster increase of protein content than grains in other positions. For grain weight, the maximum growth rate appeared at 18-21 days after flowering, and the rapid growth period appeared at 12-26 days after flowering. For grain protein, the maximum accumulation rate appeared at 21-24 days after flowering, and the fast accumulation period was from 13 to 32 days after flowering. It is concluded that moderate grain size and floret number are important for high-yield and high-quality wheat breeding, and an appropriate increase of the mid- and lower-position grains may accelerate grain-filling speed at 13-26 days after flowering.
Zheng Y.,CAS Institute of Botany |
Zheng Y.,Chinese Ministry of Water Resources |
Xu X.,Dezhou Academy of Agricultural Science |
Simmons M.,CAS Institute of Botany |
And 3 more authors.
Journal of Plant Nutrition and Soil Science | Year: 2010
An experiment was conducted to test whether foliar application of KNO3 on wheat in the heading stage could reduce salinity-induced injuries, produce high grain yield, and improve grain quality. Salt-resistant DK961 and salt-sensitive JN17 wheat cultivars under 0 or 100 mM-NaCl conditions were foliarly watered with distilled water or a 10 mM-KNO3 solution. The four treatments included: T1 (CK1), 0 mM NaCl + distilled water; T2, 0 mM NaCl + 10 mM KNO3;T3 (CK2), 100 mM NaCl + distilled water; T4, 100 mM NaCl + 10 mM KNO3. The results indicate that there were no differences (p > 0.05) in plant growth, grain yield, and grain quality between T2 and T1 in both cultivars, but these response variables were significantly lower in T3 than in T1.K+:Na+ ratio, chlorophyll content, photosynthetic capacity, grain yield, flour yield, water absorbance, ash content, dough-development time and dough-stability time were significantly higher in T4 than in T3, while protein concentration, wet-gluten concentration, and antioxidant enzyme activities were lower. Although foliar application of KNO3 on JN17 enhanced plant growth, grain yield, and grain quality, these parameters were still lower in T4 than in T1. Our findings suggest that cultivating the salt-resistant wheat cultivar combined with foliar application of KNO3 at heading stage may alleviate salinity injuries and produce higher grain yield and better grain quality under saline conditions. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Chen G.,Shandong Agricultural University |
Chen G.,Dezhou University |
Zhang H.,Shandong Agricultural University |
Zhang H.,Shandong Academy of Agricultural Sciences |
And 5 more authors.
Euphytica | Year: 2016
Genome-wide association studies have become a wide spread method of quantitative trait locus identification for many crops, including wheat (Triticum aestivum L.). Its benefit over traditional biparental mapping approaches depends on the extent of linkage disequilibrium (LD) in natural populations. We estimated the genetic diversity, population structure, and LD decay rate in a winter wheat association mapping panel (n = 205) and identified markers associated with thousand-kernel weight (TKW) and related traits. The panel was genotyped with a high-density Illumina iSelect 90 K single nucleotide polymorphism assay. PIC values were 0.047–0.375 with a mean of 0.277. Structural analysis suggested the association mapping panel contained four subpopulations. LD decay rates extended to longer genetic distances within the D genome (11.0 cM) relative to the A and B genomes (1.5 and 1.8 cM, respectively). A total of 271 marker-trait associations (MTAs) were identified for TKW and related traits, explaining 5.49–9.86 % of variation in individual traits. Among them, 11 highly significant markers (p < 0.0001), eight stable markers and twelve multi-trait MTAs were detected. Two stable markers, Ku_c9210_105 for KL and BS00023893_51 for TKW, were detected in three environments. These MTAs could be used for developing cleaved amplified polymorphic sequence markers for molecular marker-assisted selection in wheat breeding programs. © 2016 Springer Science+Business Media Dordrecht
Mao J.,Chinese Academy of Agricultural Sciences |
Manik S.M.N.,Chinese Academy of Agricultural Sciences |
Shi S.,Chinese Academy of Agricultural Sciences |
Shi S.,Qingdao Agricultural University |
And 4 more authors.
Genes | Year: 2016
Calcineurin B-like protein (CBL)-CBL-interacting protein kinase (CIPK) network is one of the vital regulatory mechanisms which decode calcium signals triggered by environmental stresses. Although the complicated regulation mechanisms and some novel functions of CBL-CIPK signaling network in plants need to be further elucidated, numerous advances have been made in its roles involved in the abiotic stresses. This review chiefly introduces the progresses about protein interaction, classification and expression pattern of different CBLs and CIPKs in Arabidopsis thaliana, summarizes the physiological roles of CBL-CIPK pathway while pointing out some new research ideas in the future, and finally presents some unique perspectives for the further study. The review might provide new insights into the functional characterization of CBL-CIPK pathway in Arabidopsis, and contribute to a deeper understanding of CBL-CIPK network in other plants or stresses. © 2016 by the authors; licensee MDPI, Basel, Switzerland.
Guan Y.,Shandong Agricultural University |
Guan Y.,Shandong Academy of Agricultural Sciences |
Wang H.,Shandong Academy of Agricultural Sciences |
Qin L.,Shandong Academy of Agricultural Sciences |
And 5 more authors.
Euphytica | Year: 2011
Plant height (PHT), stem and leaf fresh weight (SLFW), juice weight (JW) and sugar content of stem (Brix) are important traits for biofuel production in sweet Sorghum. QTL analysis of PHT, SLFW, JW and Brix was conducted with composite interval mapping using F2 and F2:3 populations derived from the cross between grain Sorghum (Shihong137) × sweet Sorghum (L-Tian). Three QTLs controlling PHT were mapped on SBI-01, SBI-07 and SBI-09 under four different environments. These QTLs could explain 10. 16 to 45.29% of the phenotypic variance. Two major effect QTLs on SBI-07 and SBI-09 were consistently detected under four environments. Eight QTLs controlling SLFW were mapped across three environments and accounted for 5.49-25.36% of the phenotypic variance. One major QTL on SBI-09 located between marker Sb5-206 and SbAGE03 was observed under three environments. Four QTLs controlling Brix were identified under two environments and accounted for 11.03-17.65% of the phenotypic variance. Six QTLs controlling JW were detected under two environments, and explained 6.63-23.56% of the phenotypic variance. QTLs for JW on SBI-07 and SBI-09 were consistent in two environments showing higher environmental stability. In addition, two chromosome regions on SBI-07 and SBI-09 were identified in our study having major effect on PHT, SFLW and JW. The results would be useful for the genetic improvement of sweet Sorghum to be used for biofuel production. © 2011 Springer Science+Business Media B.V.
Zhu Q.,Shandong Agricultural University |
Zhang M.,Shandong Agricultural University |
Ma Q.,Dezhou Academy of Agricultural science
Scientia Horticulturae | Year: 2012
This experiment was carried out to determine the influence of copper-based foliar fertilizer and controlled release urea on soil chemical properties, plant growth and yield of tomato. Tomato plants were grown in pots under field condition. Controlled release urea (CRU), comparing with common urea, was placed into soil before transplanting seedlings. Plants were sprayed with copper-based foliar fertilizer with added zinc (CFF+Zn), a novel foliar formulation based on traditional Bordeaux mixture, at 43, 50, 70 and 97 days after transplanting (DAT) compared with plants sprayed with CFF and Kocide 2000 (KCD). Water-sprayed plants and no fertilized soil served as the controls. CRU provided the significantly higher NO3-N concentration in soil than common urea at the end of the experiment. Under the same placement of CRU, the application of CFF+Zn increased the available fraction of Cu in soil and thus made influence on soil pH and EC. At 89 DAT, plant height and leaf chlorophyll content were higher in plants sprayed with CFF+Zn compared with water-sprayed plants. Leaves from CFF, CFF+Zn and KCD treatments showed significantly higher total Cu concentration than control at 65 and 89 DAT. Without the placement of soil fertilizer, CFF treated plant increased the yield by 20.75% compared with water-sprayed plant. CRU treatment accompanied with water application significantly increased total yield by 28.58% compared with the Urea treatment. Accompanied with the same placement of CRU, yields of the plants sprayed with CFF+Zn were 27.07%, 20.73% and 20.46% more than the yields of water, CFF and KCD-sprayed plants, respectively. These results clearly indicate that the application of copper-based foliar fertilizer with added zinc and controlled release urea is favorable for tomato. © 2012 Elsevier B.V.
Zhang Z.-K.,Dezhou Academy of Agricultural science |
Zhang Z.-K.,Shandong Agricultural University |
Li H.,Dezhou Academy of Agricultural science |
He H.-J.,Dezhou Academy of Agricultural science |
Liu S.-Q.,Shandong Agricultural University
Journal of Integrative Agriculture | Year: 2013
A greenhouse experiment was carried out to determine plant growth, reactive oxygen species (ROS) metabolism in roots and functions of plasma membrane (PM) and tonoplast in cucumber seedlings (Cucumis sativus L. cv. Xintaimici) treated with 40 μmol L-1 CuSO4·5H2O, which were either ungrafted or grafted onto the rootstock (Cucurbita ficifolia). Cu treatment inhibited growth, induced significant accumulation of H2O2 and led to serious lipid peroxidation in cucumber roots, and the ROS-scavenging enzymes activities in grafted seedlings roots were significantly higher than that of ungrafted plants, thus less accumulation in grafted cucumber roots induced by Cu. As a result, lipid peroxidation in roots decreased. Furthermore, the activities of H+-ATPase, H+-PPase and Ca2+-ATPase in PM and/or tonoplast in grafted cucumber seedlings under Cu stress were obviously higher than that in ungrafted plants, resulting into higher ability in grafted plants to expulse the excess H+, promote the cytoplasm alkalinization, regulate the intracellular Ca2+ concentration and brought the cytoplasma concentration of free Ca2+ to extremely low level under Cu stress. © 2013 Chinese Academy of Agricultural Sciences.
Zhang Z.-K.,Shandong Agricultural University |
Li H.,Dezhou Academy of Agricultural Science |
Zhag Y.,Shandong Agricultural University |
Huang Z.-J.,Shandong Agricultural University |
And 2 more authors.
Agricultural Sciences in China | Year: 2010
An experiment was carried out to determine plant growth, mineral uptake, lipid peroxidation, antioxidative enzymes, and antioxidant of cucumber plants (Cucumis sativus L. cv. Xintaimici) under copper stress, either ungrafted or grafted onto the rootstock (Cucurbita ficifolia). Excess Cu inhibited growth, photosynthesis, and pigment synthesis of grafted and ungrafted cucumber seedlings and significantly increased accumulation of Cu in roots besides reducing mineral uptake. Cu concentration in roots of grafted cucumber plants was significantly higher than that of ungrafted plants and obviously lower in leaves. The accumulation of reactive oxygen species (ROS) significantly increased in cucumber leaves under Cu stress and resulted in lipid peroxidation, and the levels of ROS and lipid peroxidation were greatly decreased by grafting. Activities of protective enzymes (superoxide dismutase, SOD; peroxidase, POD; catalase, CAT; ascorbate peroxidase, APX; dehydroascorbate reductase, DHAR; glutathione reductase, GR) and the contents of ascorbate and glutathione in leaves of grafted plants were significantly higher than those of ungrafted plants under Cu stress. Better performance of grafted cucumber plants were attributed to the higher ability of Cu accumulation in their roots, better nutrient status, and the effective scavenging system of ROS. © 2010 Chinese Academy of Agricultural Sciences.