Seed Science and Technology最新文献_第3页

Thermal optima for seed germination of 30 tree species from Central Amazonia: a comparison of approaches and a new proposal 中亚马逊地区30种树种种子萌发的热最优:方法比较和新建议

4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.3.13

Vânia Beatriz Cipriani, Geângelo Petene Calvi, Isolde Dorothea Kossmann Ferraz

{"title":"Thermal optima for seed germination of 30 tree species from Central Amazonia: a comparison of approaches and a new proposal","authors":"Vânia Beatriz Cipriani, Geângelo Petene Calvi, Isolde Dorothea Kossmann Ferraz","doi":"10.15258/sst.2023.51.3.13","DOIUrl":"https://doi.org/10.15258/sst.2023.51.3.13","url":null,"abstract":"This study compared the seed germination of 30 tree species from Central Amazonia using a wide temperature range (5‑40°C with 12 hours of light daily). Seeds were submitted to pre-germination treatments, whenever necessary, sown on vermiculite or germitest paper, and normal seedling development was assessed until stabilisation. With the same data set, seeds’ optimal germination temperature (T opt ) was determined by comparing the following approaches: (i) 2-step, the temperature with the highest germination and the shortest time to seed population reach 50% of germination was chosen; (ii) the highest Germination Speed Index (GSI); (iii) using the formula developed by Olff and collaborators (Olff’s approach); (iv) three species were evaluated with Covell’s approach; and (v) new formulas for T opt calculation are proposed, based on germination success and five different variables of germination rate (Cipriani’s approach). Comparing the results, T opt differed between 0.6-10.0°C. GSI and 2-step indicated generally higher values than Olff’s formula. The minimum and maximum T opt differences between Cipriani’s approaches were between 0.1-2.2°C. Our study showed that T opt should be determined for each species as, even the 30 Amazonian tree species of the same habitat, T opt ranged between 22.5 and 32.5°C.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136367500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radicle emergence test for soybean vigour testing 大豆活力测定中的胚根出苗试验

4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.3.17

Carina Gallo, Luciana Magnano

引用次数: 0

Polyacrylamide isoelectric focusing electrophoresis for differentiating Kentucky 31 tall fescue by esterase enzyme 聚丙烯酰胺等电聚焦电泳技术对肯塔基31号高羊茅的酯酶鉴别

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.1.02

Yuehua Wu, Laura Berríos-Ortiz, Ernest Allen, Todd Erickson, Elizabeth Stewart

引用次数: 0

Tetrazolium test for evaluating viability of stored rice (Oryza sativa) seeds 评价储藏水稻种子活力的四氮唑试验

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.1.08

N. Sukkaew, J. Kaewnaborn, W. Soonsuwon, V. Wongvarodom

{"title":"Tetrazolium test for evaluating viability of stored rice (Oryza sativa) seeds","authors":"N. Sukkaew, J. Kaewnaborn, W. Soonsuwon, V. Wongvarodom","doi":"10.15258/sst.2023.51.1.08","DOIUrl":"https://doi.org/10.15258/sst.2023.51.1.08","url":null,"abstract":"Germination testing of rice seeds takes 14 days, while the tetrazolium test can characterise seed viability in hours. The goal of this study was to evaluate the viability of stored rice seeds cv. Chiang Phatthalung by a practical and efficient tetrazolium method. Seeds were stored at room temperature (28°C) and in cold storage (10°C) for 0, 3, 6, 9 and 12 months and then their viability and physiological quality was tested. Seeds of all treatments were soaked in water for 18 hours, cut longitudinally and immersed in 1% tetrazolium solution for two hours at 30°C according to the ISTA method, or in tetrazolium solution at different concentrations (0.0625, 0.125, 0.25 and 0.5%) and staining temperatures (30, 35, 40 and 45°C). The modified tetrazolium test with 0.125% tetrazolium concentration and staining at 40&degC of stored rice seeds correlated positively with standard germination (r = 0.98, P < 0.01), soil seedling emergence (r = 0.98, P < 0.01), shoot length (r = 0.78, P < 0.01), root length (r = 0.81, P < 0.01) and seedling dry weight (r = 0.75, P < 0.01). Thus, this staining condition can be used to efficiently estimate the viability of freshly harvested and stored rice seeds.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67091737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biocontrol of bacterial fruit blotch by seed priming with Bacillus amyloliquefaciens and Pseudomonas fluorescens 解淀粉芽孢杆菌和荧光假单胞菌种子诱导生物防治细菌性水果斑病

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.2.05

Yuxi Wang, Yanhong Qiu, Yu Lu, Xinyu Wang, Haijun Zhang, Ping Wu, Dexin Wang, Dianpeng Zhang, L. Luo, Xiu-lan Xu

{"title":"Biocontrol of bacterial fruit blotch by seed priming with Bacillus amyloliquefaciens and Pseudomonas fluorescens","authors":"Yuxi Wang, Yanhong Qiu, Yu Lu, Xinyu Wang, Haijun Zhang, Ping Wu, Dexin Wang, Dianpeng Zhang, L. Luo, Xiu-lan Xu","doi":"10.15258/sst.2023.51.2.05","DOIUrl":"https://doi.org/10.15258/sst.2023.51.2.05","url":null,"abstract":"Bacterial fruit blotch (BFB), caused by the seed-transmitted pathogen Acidovorax citrulli, poses a serious threat to cucurbitaceous crops worldwide. In this study, two biocontrol bacteria strains, Bacillus amyloliquefaciens (Ba-2) and Pseudomonas fluorescens (2P24), with significant antagonistic activity against A. citrulli were and applied by seed priming to control BFB seed transmission. Artificially infested watermelon and melon seeds were treated with the biocontrol strains by liquid or solid matrix seed priming. The seed bio-priming effects were evaluated under greenhouse conditions. Germination percentages were improved by seed priming treatments for melon, and seedling uniformity was higher for seeds primed with Ba-2 than for seeds from the other treatments for watermelon. Seedling disease incidence of untreated seeds were 6.5% for watermelon and 16.0% for melon, and water-priming resulted in similar disease progress curves as the untreated control. Seed priming with Ba-2 and 2P24 significantly reduced seedling BFB incidence for both watermelon and melon. Evaluation with naturally infested watermelon seeds primed with biocontrol strains indicated that 2P24 seed priming was more effective than Ba-2 (P < 0.05) and 2P24 solid matrix priming, reducing the seedling disease incidence to 1.3%. Seed bio-priming has potential as an effective and eco-friendly approach for suppressing bacterial fruit blotch seed-to-seedling transmission.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67091924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dormancy behaviour and effectiveness of dormancy breaking methods in cucumber seeds (Cucumis sativus) 黄瓜种子的休眠行为及破休眠方法的有效性

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.2.06

Nasrul Haq, S. Ilyas, M. R. Suhartanto, Y. Purwanto

{"title":"Dormancy behaviour and effectiveness of dormancy breaking methods in cucumber seeds (Cucumis sativus)","authors":"Nasrul Haq, S. Ilyas, M. R. Suhartanto, Y. Purwanto","doi":"10.15258/sst.2023.51.2.06","DOIUrl":"https://doi.org/10.15258/sst.2023.51.2.06","url":null,"abstract":"This study aimed to examine the dormancy behaviour and effectiveness of various dormancy breaking treatments on cucumber seeds. Freshly harvested cucumber seeds of varieties CU-1047 and CU-1051 were extracted, dried and stored for eight weeks at ambient temperature. The stored seed lots were tested for seed germination once a week and hormone analysis (ABA, GA, zeatin and kinetin) every two weeks. In a second experiment, dormancy breaking methods using dry heat treatment (DHT) at 36, 50 or 80°C for various lengths of time. Chemical treatments were also tested, with a 24-hour soaking time using GA3, KNO3 or ultra-fine bubble (UFB) water. The results showed that the dormancy persistence in both varieties was three weeks after the seeds were harvested, by which time germination reached more than 85%. The decrease in ABA content during the storage period correlated with an increase in seed germination. The most effective methods of breaking dormancy were dry heat at 80°C for 24 hours (highest germination: 62%) and a DHT chamber (59%) compared with control (1%). An alternative method was soaking the seeds in 1% KNO3 followed by drying to the initial moisture content (55% germination). UFB water was not effective in breaking the dormancy of cucumber seeds.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67091965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of plasma pre-treatment on field germination and seedling growth of Platycodon grandiflorum 血浆预处理对桔梗田间萌发和幼苗生长的影响

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.2.08

Linjie Hao, Yong You, Yunting Hui, Lili Zhang, Changyong Shao, Decheng Wang, Tianyi Wang

{"title":"Effects of plasma pre-treatment on field germination and seedling growth of Platycodon grandiflorum","authors":"Linjie Hao, Yong You, Yunting Hui, Lili Zhang, Changyong Shao, Decheng Wang, Tianyi Wang","doi":"10.15258/sst.2023.51.2.08","DOIUrl":"https://doi.org/10.15258/sst.2023.51.2.08","url":null,"abstract":"This article explored the effects of plasma pre-treatment on the germination of Platycodon grandiflorum seeds. By analysing the effects of plasma pre-treatment on the germination, seedling growth and development of P. grandiflorum seeds, the study explored the best technological parameters of plasma pre-treatment for P. grandiflorum production and application, and promoted the application of plasma technology in the seed pre-treatment of P. grandiflorum. Based on field experiments, this study verified that plasma pre-treatment can have positive biological effects on P. grandiflorum. The Boltzmann equation was used to fit the germination-time process curve and the logistic equation was used to fit the growth-time process curve. According to the fitted equations, the prediction of the germination stage and the true leaf stage of P. grandiflorum were realised. Plasma pre-technology can increase the field germination of P. grandiflorum seeds by 23.9%. Furthermore, the growth advantage of P. grandiflorum during the germination period is maintained through to the true leaf stage. Plasma pre-treatment significantly shortened the time for P. grandiflorum seedlings to reach the true leaf stage and promoted growth and development.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67091988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Invited Review: Determination and control of seed moisture 特邀评论:种子水分的测定和控制

IF 1.4 4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.2.11

F. R. Hay, Shabnam Rezaei, Dustin M. Wolkis, C. McGill

{"title":"Invited Review: Determination and control of seed moisture","authors":"F. R. Hay, Shabnam Rezaei, Dustin M. Wolkis, C. McGill","doi":"10.15258/sst.2023.51.2.11","DOIUrl":"https://doi.org/10.15258/sst.2023.51.2.11","url":null,"abstract":"Moisture content determination is one of the most important and common assessments made on seeds. It contributes to the estimation of the value of a seed lot in commercial settings and the physiological status of seeds in research and conservation. The most common method for determining seed moisture content is by measuring the change in weight of a sample after drying at a constant temperature for a set period of time. This, however, renders the seeds unusable for other purposes, such as viability testing. Here, we review various methods for assessing the moisture status of seeds, including non-destructive methods.Controlling the amount of water in seeds is just as important as being able to measure the amount of water in seeds. Perhaps most notably, orthodox seeds are normally dried to low moisture content to maintain viability and vigour for longer, with the seeds either stored in breathable containers in a dry environment or sealed in air-tight containers such that they cannot reabsorb water. However, and especially in seed research, we are sometimes interested in having seeds at an intermediate or high moisture content. Hence, in this review we also discuss various ways to adjust the moisture content of seeds.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67092513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","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 storage temperature and pre-treatments on seed germination of Primula mallophylla and P. sertulum (Primulaceae), two narrowly-distributed endemic species from southwest China 贮藏温度和预处理对西南地区窄分布特有报春花和毛毛报春花种子萌发的影响

4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.3.09

M.H. Tian, A.J. Tang

{"title":"Effects of storage temperature and pre-treatments on seed germination of <i>Primula mallophylla</i> and <i>P. sertulum</i> (Primulaceae), two narrowly-distributed endemic species from southwest China","authors":"M.H. Tian, A.J. Tang","doi":"10.15258/sst.2023.51.3.09","DOIUrl":"https://doi.org/10.15258/sst.2023.51.3.09","url":null,"abstract":"Primula mallophylla and P. sertulum are wild ornamental species of south-west China, but the responses of their seeds to storage have not been determined. When seeds were dry-stored for 24 months at room temperature (RT) (ca. 21&deg;C) and at 4&deg;C, germination increased during the first six months, but then decreased over the following 18 months. The decrease in germination was slower for seeds stored at 4&deg;C than for those stored at RT. When seeds of these two species were dry-stored at -20&deg;C for 24 months, germination percentage was significantly higher than that of the control seeds by the sixth month; the high germination percentages persisted at 24 months. In addition, pre-germination treatments (i.e., immersion in 100 &micro;mol L -1 GA 3 for 24 hours, cold stratification for 30 days or both) improved the final germination and reduced mean germination time of P. mallophylla seeds stored for 12 months at RT, but not those of P. sertulum . Taken together, storing seeds at -20&deg;C is feasible and convenient for both primrose species; thus, it is possible to safely store seeds for future research and conservation.","PeriodicalId":21662,"journal":{"name":"Seed Science and Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135844384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of prechilling and nano-selenium on seed germination of Dorema ammoniacum 预冷和纳米硒对菊苣种子萌发的影响

4区农林科学

Seed Science and Technology Pub Date : 2023-01-01 DOI: 10.15258/sst.2023.51.3.07

Elham Abedi, Ramazan Ali Khavari-Nejad, Laleh Mosharraf, Sara Saadatmand, Hossein Ali Asadi-Gharneh

引用次数: 0