Journal of Crop Improvement最新文献_第9页

Wheat response to foliar application of salicylic acid at different sowing dates 不同播期小麦对叶面施用水杨酸的响应

IF 1.3

Journal of Crop Improvement Pub Date : 2021-09-03 DOI: 10.1080/15427528.2021.1971131

B. Jatana, H. Ram, N. Gupta, H. Kaur

{"title":"Wheat response to foliar application of salicylic acid at different sowing dates","authors":"B. Jatana, H. Ram, N. Gupta, H. Kaur","doi":"10.1080/15427528.2021.1971131","DOIUrl":"https://doi.org/10.1080/15427528.2021.1971131","url":null,"abstract":"ABSTRACT Temperature rise in March induces forced maturity in wheat (Triticum aestivum L.), which generally reduces the grain-filling period under North Indian conditions. A field experiment was conducted at the Punjab Agricultural University, Ludhiana, India, during 2015–16 and 2016–17 to evaluate the effect of salicylic acid on plant growth, physiological parameters, and grain yield of two wheat cultivars sown at different dates. A split-split-plot design was used, with sowing dates (November 5, November 20, and December 5) as main plots, wheat cultivars (WH1105, PBW677) as sub-plots, and salicylic acid foliar treatments (control, water spray, salicylic acid 75 and 100 mg l−1) as sub-sub plots. The highest tiller count, atLEAF-chlorophyll index, pollen viability, number of grains ear−1, 1000-grain weight, biological and grain yield were recorded for the November 5 sowing date. Salicylic acid foliar application at 75 and 100 mg l−1 increased the grain-filling period, improved the normalized difference vegetative index (NDVI), pollen viability, number of grains ear−1, proline content, 1000-grain weight, and grain yield. We concluded that wheat cultivars WH1105 and PBW677 can be grown successfully by sowing early (November 5) and that foliar application of salicylic acid at 75 mg l−1 can improve the wheat grain yield under north Indian conditions.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"369 - 388"},"PeriodicalIF":1.3,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41342901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Participatory variety selection and stability of agronomic performance of advanced sorghum lines in Zimbabwe 津巴布韦先进高粱品系参与性选育与农艺性能稳定性

IF 1.3

Journal of Crop Improvement Pub Date : 2021-09-03 DOI: 10.1080/15427528.2021.1974635

A. Magaisa, Pepukai Manjeru, C. Kamutando, Martin Philani Moyo

{"title":"Participatory variety selection and stability of agronomic performance of advanced sorghum lines in Zimbabwe","authors":"A. Magaisa, Pepukai Manjeru, C. Kamutando, Martin Philani Moyo","doi":"10.1080/15427528.2021.1974635","DOIUrl":"https://doi.org/10.1080/15427528.2021.1974635","url":null,"abstract":"ABSTRACT Traditional variety selection practices rarely involve end-users of breeding products, which is regarded as a major factor for the continued reliance by farmers on unproductive landraces and old varieties. Here, we report on a participatory variety selection (PVS) approach involving on-farm trials established across five drought-prone districts of Zimbabwe during the 2018–19 summer season. The objective of this study was to evaluate nine prereleased sorghum lines developed by ICRISAT against three commercial check varieties to identify the high-yielding, stable sorghum (Sorghum bicolor (L.) Moench) improved breeding lines, with desirable agronomic attributes as per farmers’ perceptions. Results demonstrated that although there was a positive and significant relationship between the across-location grain yield (GY) and the overall genotype performance score (OGPS, ranking by farmers), farmers’ choices were related to locality (i.e., resident districts) and grain color. Arid locations were the most ideal for sorghum evaluation. Advanced lines IESV91070DL (1.41 t ha−1) and ASARECA 12-3-1 (1.9 t ha−1), as well as a commercial variety (Macia, 1.73 t ha−1) were high-yielding, stable and most preferred by farmers. Although the selection criteria of both the farmers and researchers pointed to selection for high yield performance, red sorghum genotypes (e.g., IESV99061DL and SDS3472), which showed high GY performance and stability were not among the most preferred by farmers. Overall, results demonstrated that PVS approaches should be combined with traditional varietal selection tools as this may increase adoption of new varieties.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"440 - 460"},"PeriodicalIF":1.3,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46548620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Genetic relationship of the winter barley varieties assessed by the inter-Primer Binding Site (iPBS) DNA profiling method 利用引物结合位点(iPBS)分析冬大麦品种的亲缘关系

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-31 DOI: 10.1080/15427528.2021.1973171

E. Smirnova, D. Savenkova, A. Milovanov, A. Zvyagin, Evgeniya Smirnova, N. Repko, L. Troshin

{"title":"Genetic relationship of the winter barley varieties assessed by the inter-Primer Binding Site (iPBS) DNA profiling method","authors":"E. Smirnova, D. Savenkova, A. Milovanov, A. Zvyagin, Evgeniya Smirnova, N. Repko, L. Troshin","doi":"10.1080/15427528.2021.1973171","DOIUrl":"https://doi.org/10.1080/15427528.2021.1973171","url":null,"abstract":"ABSTRACT Winter barley (Hordeum vulgare L.) is an important crop with great impact on the nutrition of the world population. Many of the barley varieties used in industry are obtained from private and public seed collection organizations. Understanding the relationships among barley genotypes within these collections is crucial for breeding and maintenance. The objective of this study was to determine the genetic diversity in winter barley from the Kuban State Agrarian University collection by using DNA-profiling polymerase chain reaction (PCR) methods based on a single primer complementary to the primer binding site (PBS) region downstream of the long terminal repeat (LTR) for retrotransposons. In total, 1293 PCR amplicons were identified, of which 646 were polymorphic. Barley genotypes from this collection were mainly divided into two populations based on their geographical origin. Analysis of Molecular Variance (AMOVA) results indicated a high level of genetic diversity among the barley genotypes (83%). Relationships of the studied barley genotypes and their ancestry were established using clustering and Principal coordinate analysis (PCoA) analysis. The results of PCoA and clustering were similar and close genetic relationships of selected accessions were confirmed. Surprising results were obtained for Timofei and Vasya genotypes that are not supposed to be closely related, but were positioned together. Similar unexpected results were shown for Samson and Iosif varieties. Nevertheless, obtained data can be useful for planning of future crossing by breeders using distantly related crossing pairs.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"400 - 421"},"PeriodicalIF":1.3,"publicationDate":"2021-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45234777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of vegetative vigor of two doubled-haploid wheat populations 两个双单倍体小麦群体的营养活力特征

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-25 DOI: 10.1080/15427528.2021.1970675

T. P. Khumalo, A. Barnard, E. Dube, T. Tsilo

引用次数: 3

Enhancement of seed germination of yarrow with gibberellic acid, potassium nitrate, scarification, or hydropriming 赤霉素酸、硝酸钾、划伤或水浸对蓍草种子萌发的促进作用

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-21 DOI: 10.1080/15427528.2021.1968553

Somayeh Rohani Nejad, Z. E. Bistgani, A. Barker

引用次数: 1

Maternal environment and genetic mechanisms that regulate primary dormancy and the rate of dormancy loss in barley seeds 调节大麦种子初级休眠和休眠损失率的母体环境和遗传机制

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-08 DOI: 10.1080/15427528.2021.1964667

E. Soltani, Zahra Sadat Taheripourfard, H. Ghazvini, A. Darbandi

{"title":"Maternal environment and genetic mechanisms that regulate primary dormancy and the rate of dormancy loss in barley seeds","authors":"E. Soltani, Zahra Sadat Taheripourfard, H. Ghazvini, A. Darbandi","doi":"10.1080/15427528.2021.1964667","DOIUrl":"https://doi.org/10.1080/15427528.2021.1964667","url":null,"abstract":"ABSTRACT Pre-harvest sprouting is a concern in malting barley (Hordeum vulgare L.) in areas with a high amount of rainfall, as it decreases grain yield and malt quality. Thus, we investigated the changes in initial germination and the rate of dormancy loss in seeds of 20 promising barley genotypes at seven locations for two years (2013–2015) in Iran. Initial germination ranged between 5.23% (genotype “Teran 78/1-BC-80,411”) and 38.45% (genotype “CIRU/M111”) at the maturity. In several genotypes, there were negative associations between initial germination and the average temperature in March, April and May. The rate of dormancy loss and precipitation were negatively correlated in 14 genotypes in March. Thus, a hot and dry condition during seed development can decrease initial germination but can increase the rate of dormancy loss in barley. A genotype with high initial germination is suitable for cultivation in regions with a dry climate during grain development, and a genotype with a high rate of dormancy loss is appropriate in a climate with high rainfall and relative humidity. In conclusion, breeding programs must link dormancy intensity of target barley and environmental conditions (air temperature and humidity) that the crop will experience.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"317 - 334"},"PeriodicalIF":1.3,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48702341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Classification of viable/non-viable seeds of specialty maize genotypes using spectral and image data plus morphological features 利用光谱和图像数据以及形态特征对玉米特殊基因型的活/非活种子进行分类

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-08 DOI: 10.1080/15427528.2021.1960942

F. Yaman, F. Kahrıman

{"title":"Classification of viable/non-viable seeds of specialty maize genotypes using spectral and image data plus morphological features","authors":"F. Yaman, F. Kahrıman","doi":"10.1080/15427528.2021.1960942","DOIUrl":"https://doi.org/10.1080/15427528.2021.1960942","url":null,"abstract":"ABSTRACT Seed viability is an important consideration for agricultural production. The number of studies on the measurement of seed viability in specialty maize genotypes via new approaches is limited. This study was carried out to determine the viability of the seeds (n = 950) of two specialty maize (high oil and high protein) populations using spectral measurements and imaging techniques. Spectral data from the seed embryos were collected between 1200 and 2400 nm. Image data were taken with 300 dpi resolution. From the collected images, red (R), green (G) and blue (B) [RGB] data were extracted, and morphological features (M) were also determined. Then, the seed samples were separated into two sets and the viability of the samples was determined using two different methods [standard germination (SG) test and triphenyl tetrazolium chloride (TTC) test]. Support Vector Machine (SVM), Random Forest (RF), and Classification and Regression Tree (CART) methods were used to develop the classification models (n = 36). Classification accuracy of the models was comparable for the SG test (0.56–0.91) and TTC test (0.53–0.85). However, the classification models based on TTC test results had higher sensitivity (0.86–0.99) than specificity values (0.07–0.74), which indicated that the viable seeds were more accurately identified than the non-viable seeds. The RF model, created using the NIR+M dataset, based on the SG test (sensitivity = 0.89, specificity = 0.94, accuracy = 0.91), was most effective for determination of the seed viability of specialty maize genotypes used in this study.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"285 - 300"},"PeriodicalIF":1.3,"publicationDate":"2021-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43803818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Exploring the design and adoption of a clean seed system for sweet potato in Papua New Guinea 巴布亚新几内亚甘薯清洁种子系统的设计和采用探讨

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-04 DOI: 10.1080/15427528.2021.1960456

K. Hainzer, Catherine O’Mullan, C. Bugajim, P. Brown

引用次数: 1

Drought resilience in CIMMYT maize lines adapted to Africa resulting from transpiration sensitivity to vapor pressure deficit and soil drying 适应非洲的CIMMYT玉米品系的抗旱能力源于蒸腾对蒸汽压亏缺和土壤干燥的敏感性

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-03 DOI: 10.1080/15427528.2021.1961334

H. Chiango, N. Jafarikouhini, D. Pradhan, A. Figueirêdo, J. Silva, T. Sinclair, J. Holland

{"title":"Drought resilience in CIMMYT maize lines adapted to Africa resulting from transpiration sensitivity to vapor pressure deficit and soil drying","authors":"H. Chiango, N. Jafarikouhini, D. Pradhan, A. Figueirêdo, J. Silva, T. Sinclair, J. Holland","doi":"10.1080/15427528.2021.1961334","DOIUrl":"https://doi.org/10.1080/15427528.2021.1961334","url":null,"abstract":"ABSTRACT Low rainfall limits crop yield, particularly for maize (Zea mays L.) in southern Africa. Consequently, there is a need to identify genetic sources of specific drought-related traits that can contribute to soil water conservation and increased yields under water-limited conditions. In this study, maize genotypes released for production in southern Africa were tested for expression of two soil water-conservation traits: limited transpiration under elevated vapor pressure deficit (VPD) and decreased transpiration rate at high soil water contents earlier in the soil drying cycle. Two genotypes, CML 590 and CML 593, were identified and confirmed to initiate expression of limited-transpiration rate at VPD above about 1.9 kPa. In the soil-drying experiment, Umbelu 8923 and Umbelu 8930 closed their stomata earliest in the soil drying cycle as compared to other tested genotypes. These four genotypes with specific physiological traits for superior response to water deficit are genetic resources for further study to improve maize drought resilience.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"301 - 315"},"PeriodicalIF":1.3,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42066705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of drought stress on grain yield, agronomic performance, and heterosis of marker-based improved provitamin-A maize synthetics and their hybrids 干旱胁迫对标记改良维生素A原玉米及其杂交种产量、农艺性状和杂种优势的影响

IF 1.3

Journal of Crop Improvement Pub Date : 2021-08-02 DOI: 10.1080/15427528.2021.1949772

I. Iseghohi, A. Abe, S. Meseka, W. Mengesha, M. Gedil, A. Menkir

{"title":"Effects of drought stress on grain yield, agronomic performance, and heterosis of marker-based improved provitamin-A maize synthetics and their hybrids","authors":"I. Iseghohi, A. Abe, S. Meseka, W. Mengesha, M. Gedil, A. Menkir","doi":"10.1080/15427528.2021.1949772","DOIUrl":"https://doi.org/10.1080/15427528.2021.1949772","url":null,"abstract":"ABSTRACT Provitamin A-enriched maize (Zea mays L.) is an important complementary food staple for combating vitamin A deficiency (VAD) in high maize-producing and maize-consuming countries of sub-Saharan Africa (SSA). However, frequent drought is a major abiotic factor that retards maize growth, resulting in yearly fluctuations in grain yield. Development of provitamin A-enriched maize varieties resilient to recurrent drought stress could enhance and stabilize maize grain yield. This study was conducted to assess the effects of managed drought stress (MDS) on the performance and heterosis of some marker-based improved provitamin A maize synthetics and their varietal-cross hybrids. The maize synthetics and their varietal-cross hybrids, along with a drought-tolerant check (PVASYN13), were evaluated under MDS and well-watered (WW) conditions at Ikenne, Nigeria, for two years. Genotype and year effects were significant for grain yield and some agronomic traits under MDS and WW conditions. Grain yield was reduced by 56% under MDS. Grain yield was significantly correlated with days to anthesis, days to silking and anthesis-silking-interval under MDS but not under WW condition. Under MDS, three varietal-cross hybrids (PVASYNHGBC0/PVASYNHGAC0, PVASYNHGBC2/PVASYNHGAC0, PVASYNHGBC0/ PVASYNHGAC1) had similar grain yields and tolerance indices as the drought-tolerant check, whereas PVASYNHGBC1/PVASYNHGAC2 produced 12.5% more grain yield than the check. Three of the varietal-cross hybrids (PVASYNHGBC0/PVASYNHGAC0, PVASYNHGBC0/PVASYNHGAC1 and PVASYNHGBC1/PVASYNHGAC2) had significant mid-parent heterosis for grain yield under the two test conditions, and were recommended for developing drought-tolerant varieties to combat VAD in drought-prone environments of SSA.","PeriodicalId":15468,"journal":{"name":"Journal of Crop Improvement","volume":"36 1","pages":"239 - 259"},"PeriodicalIF":1.3,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/15427528.2021.1949772","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44182852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0