Plant Production Science最新文献_第10页

Effectiveness of direct application of top dressing with spent coffee grounds for soil improvement and weed control in wheat-soybean double cropping system 直接施用咖啡渣追肥对小麦-大豆双季制土壤改良和杂草防治的效果

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-12-02 DOI: 10.1080/1343943X.2021.2007142

Y. Hirooka, Shintaro Kurashige, K. Yamane, Y. Watanabe, Misako Kakiuchi, Daisuke Ishikawa, Taku Miyagawa, K. Iwai, M. Iijima

{"title":"Effectiveness of direct application of top dressing with spent coffee grounds for soil improvement and weed control in wheat-soybean double cropping system","authors":"Y. Hirooka, Shintaro Kurashige, K. Yamane, Y. Watanabe, Misako Kakiuchi, Daisuke Ishikawa, Taku Miyagawa, K. Iwai, M. Iijima","doi":"10.1080/1343943X.2021.2007142","DOIUrl":"https://doi.org/10.1080/1343943X.2021.2007142","url":null,"abstract":"ABSTRACT With increasing annual global coffee consumption, the amount of spent coffee grounds (SCGs) increases. Direct application of SCGs in large agricultural fields can potentially improve soil and control weeds in an environmentally safe manner. However, except for composting, the use of SCGs during cropping has not been implemented thus far because of inhibitory effects on crop growth observed in pot-based studies. We evaluated the effect of a top dressing approach to direct SCG application on crop biomass, soil improvement, and weed control, through double cropping field experiments using wheat and soybean. The field experiments were conducted over six successive cropping seasons in an upland field converted from paddy, and crop and weed biomass as well as soil total carbon and nitrogen were investigated. To avoid growth inhibition, the SCGs were surface broadcasted after crop germination to mimic living mulch. The soil total carbon and nitrogen contents increased significantly under an SCG concentration of 5 kg m−2 or more, approximately 20 months after the first application, whereas SCG application did not significantly affect crop yield except for the first cropping of wheat. In addition, the 10 kg m−2 SCG application reduced the weed biomass by 50% or more during cropping, except for the wheat cropping in the second year. We concluded that top dressing with SCGs after crop germination is an efficient method for sustainable agricultural production, although further detailed studies of SCGs’ effect on the crop growth and soil characteristics are required. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47262946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 4

Cross-locational experiments to reveal yield potential and yield-determining factors of the rice cultivar ‘Hokuriku 193’ and climatic factors to achieve high brown rice yield over 1.2kg m-2 at Nagano in central inland of Japan 在日本中部内陆长野地区进行的“北陆193”水稻产量潜力、产量决定因素及气候因素的跨地试验研究

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-10-25 DOI: 10.1080/1343943X.2021.1981140

Masaki Okamura, J. Hosoi, K. Nagata, Kentaro Koba, D. Sugiura, Yumiko Arai-Sanoh, N. Kobayashi, M. Kondo

{"title":"Cross-locational experiments to reveal yield potential and yield-determining factors of the rice cultivar ‘Hokuriku 193’ and climatic factors to achieve high brown rice yield over 1.2kg m-2 at Nagano in central inland of Japan","authors":"Masaki Okamura, J. Hosoi, K. Nagata, Kentaro Koba, D. Sugiura, Yumiko Arai-Sanoh, N. Kobayashi, M. Kondo","doi":"10.1080/1343943X.2021.1981140","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1981140","url":null,"abstract":"ABSTRACT Understanding the yield potential and yield-determining factors of recent high-yielding cultivars is essential for further increasing rice yield. In this study, a cross-locational field experiment was conducted across 3 years using ‘Hokuriku 193ʹ (H193), a high-yielding cultivar, at four sites including one in Nagano Prefecture, which is the highest-yielding region in Japan. The highest mean yields of 3 years, 1214 g m−2 for brown rice grains and 1586 g m−2 for rough grains, were recorded at the Nagano site. The yields from the 17 environments were strongly correlated with spikelet number per square meter while percentage of filled grain was relatively stable, suggesting that sink capacity is the primary determining factor for grain yield of H193. The climatic factors for high spikelet number at the Nagano site can be explained by the high cumulative radiation before heading associated with longer duration until heading by low night temperature. In addition, a large increase in shoot dry weight during grain filling (ΔW) and high radiation use efficiency (ΔW/rad) at the Nagano site could satisfy large source demand by the large sink size. The high ΔW/rad at the Nagano site associated with low night temperature. This study demonstrated high yield potential of H193 and revealed an environment that achieves extra-high yields in H193, which provided insight to attain further increase in rice yield. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46962671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Grain yield and genotype x environment interaction in bean cultivars with different growth habits 不同生长习性大豆品种籽粒产量与基因型x环境互作

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-10-06 DOI: 10.1080/1343943X.2021.1981141

G. Ligarreto-Moreno, C. PIMENTEL-LADINO

{"title":"Grain yield and genotype x environment interaction in bean cultivars with different growth habits","authors":"G. Ligarreto-Moreno, C. PIMENTEL-LADINO","doi":"10.1080/1343943X.2021.1981141","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1981141","url":null,"abstract":"ABSTRACT Breeding of common beans (Phaseolus vulgaris L.) shows restrictions in the genetic advance because of the effect of the environment. Therefore, the behavior of the yield components of genotypes varies according to the crop’s environment. The genotype x environment interaction can cause genotypes with high yields in one location not to behave in the same way in other localities, which limits the recommendation of cultivars for different environments. The objective of this research was to evaluate agronomic traits in new improved bean cultivars in high tropic environments, as well as to determine which cultivars show phenotypic stability for yield. Multi-environment tests were carried out during 2016 and 2017 in two regions of the department of Cundinamarca, in Colombia. Significant differences were found for the genotype x environment interaction and highly significant differences for the evaluation environments and genotypes. The greatest variation was attributed to genetic effects, followed by environmental effects and the genotype x environment interaction. The first two principal components for grain yield showed 88.86% of the variation of the genotype x environment interaction. Cultivars Serrania and Sutagao, of climbing growth habit, were identified as stable and with high yield potential, so they can be considered as a commercial alternative for bean growers. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46701778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 7

Genetic analysis of biochemical, fiber yield and quality traits of upland cotton under high-temperature 高温条件下陆地棉生化、纤维产量和品质性状的遗传分析

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-09-08 DOI: 10.1080/1343943X.2021.1972013

A. Manan, M. Zafar, Maozhi Ren, M. Khurshid, A. Sahar, A. Rehman, H. Firdous, Yuan Youlu, A. Razzaq, A. Shakeel

{"title":"Genetic analysis of biochemical, fiber yield and quality traits of upland cotton under high-temperature","authors":"A. Manan, M. Zafar, Maozhi Ren, M. Khurshid, A. Sahar, A. Rehman, H. Firdous, Yuan Youlu, A. Razzaq, A. Shakeel","doi":"10.1080/1343943X.2021.1972013","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1972013","url":null,"abstract":"ABSTRACT To understand the effect of heat stress on morphology and physiology of the cotton, eight cotton genotypes with their 15F1 hybrids (five lines, three testers) were grown in the field conditions under randomized complete block design (RCBD) with two treatments i.e. normal and high-temperature stresses with two replications followed by split-plot arrangement. Data were collected for biochemical and yield-related parameters. Mean values of all studied traits were reduced significantly under high-temperature stress whilst the mean value of lint%, catalase activity, total soluble proteins, peroxidase, and carotenoids were increased under high-temperature. Under both conditions, the number of bolls, boll weight, seed cotton yield, lint index, seed mass per boll, hydrogen peroxide content, catalase activity, total soluble proteins, carotenoids, and chlorophyll contents had high heritability values along with high genetic advance percent mean which revealed, these traits were controlled by additive gene action. The lint%, seed index, short fiber index, fiber strength, fiber fineness, upper half mean length and peroxidase activity had high heritability with moderate genetic advance under heat stress conditions which showed, these traits were controlled by non-additive gene action. Under both temperature conditions, FH-458, IUB-65, CRS-2, and FH-313 were good general combiners for physicochemical and yield-related traits. The cross combination of IUB-013× CRS-2 and FH-458× FH-313 were good specific combiner for plant height and seed cotton yield whilst for fiber quality and biochemical traits, the best specific combiners were VH-329× FH-313 and IUB-013× CRS-2. These identified parents and cross combinations might be used for improving already present commercial varieties under high-temperature stress.","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43456817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 17

Promotion of potato yield under moderate water deficiency at the seedling stage by modifying sink-source relationship 改良库源关系提高马铃薯苗期中度缺水产量

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-08-11 DOI: 10.1080/1343943X.2021.1963293

L. Jia, Lan Wu, Qiqige Suyala, Xiaohua Shi, Yonglin Qin, M. Fan

{"title":"Promotion of potato yield under moderate water deficiency at the seedling stage by modifying sink-source relationship","authors":"L. Jia, Lan Wu, Qiqige Suyala, Xiaohua Shi, Yonglin Qin, M. Fan","doi":"10.1080/1343943X.2021.1963293","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1963293","url":null,"abstract":"ABSTRACT Water deficiency is the main bottleneck in potato production in many regions worldwide. The generation of higher tuber yields per unit of water is a key goal for both agronomists and potato growers. In this study, we found that under moderate deficit irrigation (DI; 50% relative water content (RWC)) at the seedling stage of potato growth, the leaf area index (LAI) and dry matter accumulation were lower than control; however, they caught up with and surpassed the control at later developmental stages with a normal water supply, and a higher yield was ultimately achieved. The LAI and total dry weight under severe water stress (35% RWC) also surpassed the control at harvest; however, the final yield remained low, due to the low distribution of dry matter into the tubers. Abscisic acid (ABA) increased under DI conditions at the seedling stage, while gibberellin (GA1 and GA3) levels decreased. Moreover, endogenous ABA increased as plant development proceeded from seedling stage to tuber initiation stage, regardless of water stress. Exogenous ABA application promoted dry matter accumulation and distribution into the tubers. Therefore, it may be that ABA, as a major signaling molecule, mediates water stress to regulate tuber sink capacity at early development period. Through a feedback regulation stronger source capacity was stimulated by sink enhancement mediated by moderate water stress at the seedling stage, reached a higher tuber yield finally by reestablishment of sink-source relationship. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45377866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 3

Promotive or suppressive effects of ultrafine bubbles on crop growth depended on bubble concentration and crop species 超细气泡对作物生长的促进或抑制作用取决于气泡浓度和作物种类

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-08-05 DOI: 10.1080/1343943X.2021.1960175

M. Iijima, Kaito Yamashita, Y. Hirooka, Y. Ueda, K. Yamane, Chikashi Kamimura

{"title":"Promotive or suppressive effects of ultrafine bubbles on crop growth depended on bubble concentration and crop species","authors":"M. Iijima, Kaito Yamashita, Y. Hirooka, Y. Ueda, K. Yamane, Chikashi Kamimura","doi":"10.1080/1343943X.2021.1960175","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1960175","url":null,"abstract":"ABSTRACT Previous research into the effects of ultrafine bubbles (UFB) on plant growth have been contradictory. To facilitate the resolution of these contradictions, the aim of the present study was to clarify the interspecific differences in growth responses among cereal/leguminous species under different levels of UFB concentrations. Seedlings of six species were grown hydroponically with three different UFB concentrations and two levels of plant nutrition to evaluate biomass and elongation growth. UFB growth promotion under zero-nutrition occurred in all species. Interspecific differences were noted in response to differing UFB concentration levels. Rice and soybean had higher above-ground biomass production at both low and high concentrations. Conversely, other crops exhibited promoted growth at only one of the concentrations. Negative effects occurred in full nutrient conditions except for root elongation. This study demonstrated that growth-promoting effects with UFB depended on the crop species being tested and the concentration of UFB used. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1343943X.2021.1960175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45022905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 5

Comparison of anthocyanin and polyphenolics in purple sweetpotato (Ipomoea batatas Lam.) grown in different locations in Japan 日本不同产地紫甘薯(Ipomoea batatas Lam.)花青素和多酚类物质的比较

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-08-02 DOI: 10.1080/1343943X.2021.1963292

K. Ishiguro, T. Kuranouchi, Y. Kai, K. Katayama

{"title":"Comparison of anthocyanin and polyphenolics in purple sweetpotato (Ipomoea batatas Lam.) grown in different locations in Japan","authors":"K. Ishiguro, T. Kuranouchi, Y. Kai, K. Katayama","doi":"10.1080/1343943X.2021.1963292","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1963292","url":null,"abstract":"ABSTRACT The health benefits of purple sweetpotato, which is used as an edible food in its natural state and in processed foods and as a natural color pigment, have been recognized. In Japan, sweetpotato has been economically produced in regions below 36°4ʹN latitude; however, cultivation areas are beginning to expand further north. The anthocyanin and polyphenolics in three purple sweetpotatoes cultivated in different locations; I (42°92ʹN, 143°04ʹE) and II (31°72ʹN, 131°03ʹE), were compared over two years. Total anthocyanin and polyphenolic contents in purple sweetpotatoes tended to be high in location I. The anthocyanin and polyphenolic compositions differed between locations. The peonidin/cyanidin ratios were higher in location II compared with I in all varieties. The relative amount of 3,4- and 4,5-di-O-caffeoyolquinic acids were higher in location II. Their contents and composition also differed between years. These results suggest that the variability of the anthocyanin and polyphenolic content and composition was influenced by climate conditions, probably temperature during cultivation. This study indicates that northern areas in Japan are an alternative production area and may yield higher amounts of anthocyanin and polyphenolics. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45793943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Growth responses of seedlings under complete submergence in rice cultivars carrying both the submergence-tolerance gene SUB1A-1 and the floating genes SNORKELs 同时携带耐淹基因SUB1A-1和漂浮基因SNORKELs的水稻品种在完全淹水条件下的生长响应

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-07-12 DOI: 10.1080/1343943X.2021.1943465

Shunsuke Oe, Daisuke Sasayama, Quanshu Luo, H. Fukayama, T. Hatanaka, T. Azuma

{"title":"Growth responses of seedlings under complete submergence in rice cultivars carrying both the submergence-tolerance gene SUB1A-1 and the floating genes SNORKELs","authors":"Shunsuke Oe, Daisuke Sasayama, Quanshu Luo, H. Fukayama, T. Hatanaka, T. Azuma","doi":"10.1080/1343943X.2021.1943465","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1943465","url":null,"abstract":"ABSTRACT We screened 80 Asian rice (Oryza sativa L.) cultivars for the presence of the submergence-tolerance gene SUB1A-1 and the floating genes SNORKEL1 (SK1) and SNORKEL2 (SK2), and found that the deepwater rice cultivar Baisbish (BSB) and the submergence-tolerant cultivar Flood Resistant 13A (FR13A) both possess the SUB1A-1 and the SK1/2. When BSB and FR13A seedlings were completely submerged, spindly growth of shoots was induced in BSB but not in FR13A. Submergence significantly increased the SUB1A-1 transcript abundance in BSB and FR13A shoots, but the expression level in BSB was much lower than that of FR13A. Submergence also induced the expression of both ERF66 and ERF67, the transcriptional targets of SUB1A-1, in FR13A shoots, whereas it upregulated the expression of ERF67 but not that of ERF66 in BSB shoots. These results suggest that BSB could not display submergence tolerance due to the low expression of SUB1A-1 and/or ERF66 under submergence. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1343943X.2021.1943465","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45152713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 6

Carbohydrates accumulation, oil quality and yield of rapeseed genotypes at different nitrogen rates 不同施氮量下油菜籽基因型碳水化合物积累、油质及产量的变化

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-07-02 DOI: 10.1080/1343943X.2021.1943464

A. Ghafoor, H. Karim, M. Asghar, A. Raza, M. Hussain, Hafiz Hassan Javed, I. Shafiq, P. Xiao, H. Yue, B. Ahmad, A. Manzoor, U. Ali, Yongcheng Wu

{"title":"Carbohydrates accumulation, oil quality and yield of rapeseed genotypes at different nitrogen rates","authors":"A. Ghafoor, H. Karim, M. Asghar, A. Raza, M. Hussain, Hafiz Hassan Javed, I. Shafiq, P. Xiao, H. Yue, B. Ahmad, A. Manzoor, U. Ali, Yongcheng Wu","doi":"10.1080/1343943X.2021.1943464","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1943464","url":null,"abstract":"ABSTRACT A field experiment was conducted in 2018–2020 to investigate the effect of two nitrogen application rates (N0 = 0 kg ha−1(control), N90 = 90 kg ha−1, and N180 = 180 kg ha−1) on morphological and physiological behaviours of two new rapeseed varieties; V1 = JYJS01 (semi-dwarf variety) and V2 = CY36 (tall variety). Our results indicated that N application enhanced the plant growth and seed protein content in comparison to control. Contrastingly, compared with control, sugar contents, i.e. sucrose and reducing sugars, decreased significantly in response to an increase in N. Seed oil content also decreased by 8.5% and 5.5%, 6.7% and 3.9% against N180 in V1 and V2 during 2019 and 2020, respectively. Furthermore, higher nitrogen application rates decreased seed fatty acid proportions by decreasing the sugar availability for fatty acid biosynthesis. Our results demonstrated the highest seed yield (9.4 g plant−1 in 2018/19 and 9.5 g plant−1 in 2019/20) in V2 against N180, and the lowest seed yield (3.2 g plant−1 in 2018/19 and 3.4 g plant−1 in 2019/20) in V1 at control. These findings imply that a high nitrogen application rate had increased the yield. At the same time, the carbohydrates translocation from stems to seed for fatty acid biosynthesis decreased, which played their significant role in seed physiology for fatty acid metabolisms, ultimately affected the seed quality. However, there is still a dire need to evaluate how nitrogen application affect the carbohydrate availability for fatty acid metabolism in the seed of new winter rapeseed varieties. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1343943X.2021.1943464","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45502221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 3

Estimation of spikelet number per area by UAV-acquired vegetation index in rice (Oryza sativa L.) 利用无人机植被指数估算水稻每面积颖花数

IF 2.5 3区农林科学

Plant Production Science Pub Date : 2021-06-27 DOI: 10.1080/1343943X.2021.1943467

T. Tsukaguchi, Haruka Kobayashi, Y. Fujihara, Shunsuke Chono

{"title":"Estimation of spikelet number per area by UAV-acquired vegetation index in rice (Oryza sativa L.)","authors":"T. Tsukaguchi, Haruka Kobayashi, Y. Fujihara, Shunsuke Chono","doi":"10.1080/1343943X.2021.1943467","DOIUrl":"https://doi.org/10.1080/1343943X.2021.1943467","url":null,"abstract":"ABSTRACT The objectives of this study were to find the best vegetation index (VI) associated with plant nitrogen content at the reproductive stage in rice, to associate the number of spikelets with this VI and solar radiation, and to estimate the number of spikelets. Rice cultivars Ishikawa 65 and Koshihikari were grown in the field in 2019 and 2020 at various nitrogen application rates and transplanting densities. From 30 days before heading to just after heading, the field was imaged with a multispectral camera. The images were processed with predefined ground control point data to create VI maps. From the maps, VI data were retrieved from the canopy area where plants were harvested for the determination of plant nitrogen content at the reproductive stage and of the number of spikelets at maturity. Among 6 VIs tested, the chlorophyll index green (CIgreen) had the highest coefficient of determination (R 2) with plant nitrogen content at the reproductive stage and was the only VI with a linear relation with plant nitrogen content. The number of spikelets per unit area was well explained by multiple regression with CIgreen at 15 days before heading (CIG15) and cumulative solar radiation in the 15 days before heading (CSR15) as independent variables. A higher CIG15 would increase the number of spikelets differentiated and a higher CSR15 would reduce the rate of degeneration by increasing dry matter production. Graphical abstract","PeriodicalId":20259,"journal":{"name":"Plant Production Science","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/1343943X.2021.1943467","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41933711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 3