Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430765
N. Bhavya, P. Basavaraja, H. M. Saqeebulla, G. Gangamrutha
A field experiment was conducted during Kharif 2017 at Devanahalli village, Bengaluru rural district of Karnataka to evaluate the effect of different approaches of nutrient application on yield, nutrient uptake and use efficiency by carrot (Daucus carota L.). The experiment was laid out in randomized complete block design replicated thrice with eight treatments comprisingT1 (STCR target 20 tha-1 through inorganics), T2 (STCR target 20 tha-1 through integrated), T3 (STCR target 25 tha-1 through inorganics), T4 (STCR target 25 tha-1 through integrated), T5 (RDF (75: 63: 50) N, P2O5, K2O kg ha-1+ FYM), T6 (LMH /STL + FYM), T7 (Farmers practice (92.6:159:0) N, P2O5 kg ha-1 + FYM), T8 (Absolute control).Results revealed that significantly higher root (27.51 t ha-1) and shoot (16.48 t ha-1) yield were recorded in STCR target of 25 t ha-1 through integrated approach. Similarly, higher total uptake of nitrogen, phosphorus and potassium (297.07 kg, 57.48 kg and 253.81 kg ha-1, respectively) by carrot and the higher apparent recovery efficiency (0.35, 0.08 and 0.58 kg kg-1 of N, P2O5 and K2O, respectively) and agronomic nutrient use efficiency (26.10, 12.37 and 48.25 kg kg-1 of N, P2O5 and K2O, respectively) were recorded in the same STCR target of 25 t ha-1 through integrated approach. However, the better profit was recorded (value cost ratio: 43.30) in STCR target of 25 t ha-1 through inorganics. The STCR target of 25 t ha-1 through integrated approach had the most positive effect for the carrot cultivation.
2017年秋季，在卡纳塔克邦班加罗尔农村地区的Devanahalli村进行了田间试验，以评估不同施肥方式对胡萝卜产量、养分吸收和利用效率的影响。试验采用随机完全区组设计，重复3次，共8个处理，包括t1 (STCR靶20 -1 -无机物)、T2 (STCR靶20 -1 -综合)、T3 (STCR靶25 -1 -无机物)、T4 (STCR靶25 -1 -综合)、T5 (RDF (75: 63: 50) N、P2O5、K2O kg ha-1+ FYM)、T6 (LMH /STL + FYM)、T7 (Farmers practice (92.6:159:0) N、P2O5 kg ha-1+ FYM)、T8(绝对对照)。结果表明，在25 t ha-1的STCR目标下，采用综合方法可显著提高根产量(27.51 t ha-1)和地上部产量(16.48 t ha-1)。同样，在25 t ha-1的STCR目标下，胡萝卜对氮、磷、钾的总吸收量(分别为297.07 kg、57.48 kg和253.81 kg kg hm -1)较高，表观回收率(N、P2O5和K2O分别为0.35、0.08和0.58 kg kg kg-1)和农艺养分利用效率(N、P2O5和K2O分别为26.10、12.37和48.25 kg kg-1)较高。然而，通过无机物的STCR目标为25 t ha-1，录得较好的利润(价值成本比:43.30)。综合栽培的STCR目标为25 t ha-1，对胡萝卜栽培效果最好。
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Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430766
S. Mehetre, P. Pawar, R. Pawar, M. Gurav
An experiment was conducted during kharif 2020 at Post Graduate Research Farm, Agronomy Section, College of Agriculture, Dhule to study the effect of pre and post emergent herbicides application on economics of pearl millet production. Experiment consisted of nine treatments namely weedy check (T1), weed free (T2), atrazine @ 500 g/ha PoE (T3), 2,4-D (Dimethyl amine) @ 500 g/ha at 25-30 DAS PoE (T4), 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T5), atrazine @ 500 g/ha PE fb 2,4-D (Dimethyl amine) @ 500 g/ha at 25-30 DAS PoE (T6), atrazine @ 500 g/ha PE fb 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T7), pendimethalin 750 g/ha PE fb 2,4-D (Dimethyl amine) @ 500 g/ha at 25-30 DAS PoE (T8), pendimethalin 750 g/ha PE fb 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T9) laid out in randomized block design with three replications. Among the herbicidal treatments, grain yield (kg/ha) and straw yield (kg/ha) was observed better with application of pendimethalin @ 750 g/ha PE fb 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T9). Among the chemical weed management treatments, application of pendimethalin @ 750 g/ha PE fb 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T9) observed higher gross and net monetary returns (₹/ha). However, the gross and net monetary returns (₹/ha) were maximum under weed free treatment but lower B:C ratio as compared to sequential application of pendimethalin @ 750 g/ha PE fb 2,4-D (Na Salt) @ 500 g/ha at 25-30 DAS PoE (T9) and pendimethalin @ 750 g/ha PE fb 2,4-D (Dimethyl amine) @ 500 g/ha at 25-30 DAS PoE (T8) due to higher cost for labour weeding.
本试验于2020年秋季在杜勒农学院农学分院研究生研究农场进行，研究苗期前后施用除草剂对珍珠粟生产经济效益的影响。实验由九个治疗即杂草丛生的检查(T1)、杂草免费(T2)、阿特拉津@ 500克/公顷坡(T3), 2, 4 - d(二甲基胺)@ 500克/公顷25 - 30 DAS坡(T4)、2,4 - d(钠盐)@ 500克/公顷25 - 30 DAS坡(T5)、阿特拉津@ 500克/公顷PE fb 2, 4 - d(二甲基胺)@ 500克/公顷25 - 30 DAS坡(T6)、阿特拉津@ 500克/公顷PE fb 2, 4 - d(钠盐)@ 500克/公顷25 - 30 DAS坡(T7), pendimethalin 750克/公顷PE fb 2, 4 - d(二甲基胺)@ 500克/公顷25 - 30 DAS坡(显示),戊二甲基萘750 g/ha PE fb 2,4- d(钠盐)@ 500 g/ha, 25-30 DAS PoE (T9)，随机区组设计，3个重复。在25-30 DAS PoE (T9)处理中，施用750 g/ha PE fb 2,4- d (Na Salt) @ 500 g/ha的对二甲甲烷处理的籽粒产量(kg/ha)和秸秆产量(kg/ha)均较好。在化学杂草管理处理中，在25-30 DAS PoE (T9)施用750克/公顷PE fb 2,4- d(钠盐)500克/公顷的戊二甲基萘啶(pdimealin)观察到更高的总和净货币回报(₹/公顷)。然而，由于人工除草的成本较高，在无杂草处理下，总货币回报和净货币回报(₹/公顷)最大，但与连续施用戊二甲基林750克/公顷PE fb 2,4- d(钠盐)500克/公顷25-30 DAS PoE (T9)和戊二甲基林750克/公顷PE fb 2,4- d(二甲胺)500克/公顷25-30 DAS PoE (T8)相比，B:C比更低。
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Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430763
Monika Peddapuli, B. Venkateswarlu, V. Gowthami
A field experiment was performed at Agricultural College, Bapatla, ANGRAU, Guntur during kharif season of 2020 to evaluate the efficacy of zinc nutrition on quality, yield and economics of sweetcorn. Experiment was carried out in Randomized Block Design and comprising of nine treatments with three replications. The results disclosed that application of recommended dose of fertilizers along with soil application of 10 kg ha-1 Zn EDTA + two foliar sprays of nano zinc @ 250 ppm at 20 & 40 DAS registered remarkably higher protein content (12.98%) and zinc content (34.59 ppm) in kernel which was considered to be superior over the remaining zinc management practices tried. Also, highest green cob (12,638 kg ha-1), green fodder (19,674 kg ha-1), stover yield (7,590 kg ha-1) and gross returns (₹ 1,93,360 ha-1) was recorded from the treatment with soil application of Zn EDTA @ 10 kg ha-1 + two foliar sprays of nano zinc @ 250 ppm at 20 & 40 DAS along with RDF over control. However, highest net returns (₹ 1,38,664 ha-1) and benefit cost ratio (2.74) was recorded with RDF + ZnSO4 @ 25 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 and 40 DAS (Foliar spray). The effectiveness of Zn EDTA compared to ZnSO4 is responsible for the higher quality parameters and yield of sweetcorn but due to its higher cost, Net returns and B;C ratio are maximum for the plots treated with ZnSO4 making it more economically viable.
为评价锌营养对甜玉米品质、产量和经济效益的影响，于2020年收割季在巴帕特拉、安格罗、贡图尔农学院进行了田间试验。试验采用随机区组设计，共9个处理，3个重复。结果表明，施用推荐剂量的肥料以及土壤施用10 kg ha-1 Zn EDTA + 2次叶面喷施纳米锌(250 ppm, 20和40 DAS)显著提高了籽粒蛋白质含量(12.98%)和锌含量(34.59 ppm)，这被认为优于其他锌管理措施。此外，最高的绿穗轴(12,638 kg ha-1)，绿饲料(19,674 kg ha-1)，秸秆产量(7,590 kg ha-1)和总收益(₹1,93,360 ha-1)记录了土壤施用Zn EDTA @ 10 kg ha-1 +两次叶面喷施纳米锌@ 250 ppm在20和40 DAS以及RDF控制下。然而，在20和40 DAS(叶面喷雾)下，RDF + ZnSO4 @ 25 kg ha-1(土壤)+纳米ZnO @ 250 ppm时，记录了最高的净回报(₹1,38,664 ha-1)和效益成本比(2.74)。与ZnSO4相比，Zn EDTA的有效性是甜玉米品质参数和产量更高的原因，但由于其成本较高，ZnSO4处理地块的净收益和B / C比值最大，因此更具经济可行性。
{"title":"Effect of Zinc Fortification on Quality, Yield and Economics of Sweetcorn","authors":"Monika Peddapuli, B. Venkateswarlu, V. Gowthami","doi":"10.9734/ijpss/2021/v33i2430763","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430763","url":null,"abstract":"A field experiment was performed at Agricultural College, Bapatla, ANGRAU, Guntur during kharif season of 2020 to evaluate the efficacy of zinc nutrition on quality, yield and economics of sweetcorn. Experiment was carried out in Randomized Block Design and comprising of nine treatments with three replications. The results disclosed that application of recommended dose of fertilizers along with soil application of 10 kg ha-1 Zn EDTA + two foliar sprays of nano zinc @ 250 ppm at 20 & 40 DAS registered remarkably higher protein content (12.98%) and zinc content (34.59 ppm) in kernel which was considered to be superior over the remaining zinc management practices tried. Also, highest green cob (12,638 kg ha-1), green fodder (19,674 kg ha-1), stover yield (7,590 kg ha-1) and gross returns (₹ 1,93,360 ha-1) was recorded from the treatment with soil application of Zn EDTA @ 10 kg ha-1 + two foliar sprays of nano zinc @ 250 ppm at 20 & 40 DAS along with RDF over control. However, highest net returns (₹ 1,38,664 ha-1) and benefit cost ratio (2.74) was recorded with RDF + ZnSO4 @ 25 kg ha-1 (Soil) + Nano ZnO @ 250 ppm at 20 and 40 DAS (Foliar spray). The effectiveness of Zn EDTA compared to ZnSO4 is responsible for the higher quality parameters and yield of sweetcorn but due to its higher cost, Net returns and B;C ratio are maximum for the plots treated with ZnSO4 making it more economically viable.","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76745539","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430768
R. Suvitha, A. Velayutham, V. Geethalakshmi, S. Panneerselvam, P. Jeyakumar, K. Nagarajan
Field experiment was conducted to evaluate the performance of different automated drip irrigation on tomato crop under sandy clay loam soil in Tamil Nadu Agricultural University during kharif 2019 and kharif 2020. Five treatments comprising 4 different automated drip irrigation systems are time based drip irrigation, volume based drip irrigation, soil moisture sensor based irrigation, switching tensiometer based irrigation and one is conventional method of irrigation were tested. The results revealed that tensiometer based drip irrigation recorded higher fruit yield of 95.11 and 96.21 t ha-1 and water use efficiency of 21.10 and 25.42 t ha-mm-1 resulting in increment over conventional method of irrigation. However, the above treatment was followed by soil moisture sensor based drip irrigation in tomato. Tensiometer based drip irrigation helps to save the water up to 54.91 and 60.55 % compared to conventional method of irrigation during kharif 2019 and 2020.
在泰米尔纳德邦农业大学进行了2019年和2020年秋收期间不同自动滴灌方式对沙质粘土壤土番茄作物的田间试验。测试了4种不同自动滴灌系统的5种处理，分别是基于时间的滴灌、基于体积的滴灌、基于土壤湿度传感器的滴灌、基于开关张力计的滴灌和一种传统的滴灌方法。结果表明，基于张力计的滴灌方法的果实产量分别为95.11和96.21 t ha-1，水分利用效率分别为21.10和25.42 t ha-mm-1，比常规灌溉方法增产。在上述处理之后，番茄进行土壤水分传感器滴灌处理。在2019年和2020年的kharif期间，与传统灌溉方法相比，基于张力计的滴灌有助于节水54.91%和60.55%。
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Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430772
V. Venkatesh, N. Sekaran, V. Sanjivkumar, S. Meena, K. Parthiban
To study the effect of different nutrient management practices on different soil physical and chemical properties in the permanent manurial experiment field of Tamil Nadu Agricultural University, which was established during 1982 at Agriculture Research Station, Kovilpatti. Soil physical and chemical properties are mainly affected by the continuous application of fertilizers or manures from years together. To study the above mentioned properties of soil the soil samples were collected from the permanent manurial experiment of kovilpatti where the Randomized Block Design (RBD) was followed with nine different treatments viz., T1- Control; T2- 100 % RDF (40:20:40 NPK kg ha-1); T3- 50% RDF (20:10:20 NPK kg ha-1); T4- 50% N (Crop residues); T5- 50 % N (FYM); T6- 50 % Inorganic N+ 50% organic N (crop residues) + P (50%) + K (50%) ; T7- 50 % Inorganic N+ 50% organic N (FYM) + P (50%) + K (50%); T8- 100 % RDF + 25 kg ZnSO4 ha-1; T9- FYM - 12.5 t ha-1. The effect of these treatments along with the depth (0-15 cm; 15-30 cm and 30-45 cm) was compared. The treatment receiving organics viz., T9- FYM - 12.5 t ha-1 was observed to be the best in all the physical and chemical properties which was then followed by INM viz., T7- 50 % Inorganic N+ 50% organic N (FYM) + P (50%) + K (50%) and T6- 50 % Inorganic N+ 50% organic N (crop residues) + P (50%) + K (50%).
以1982年在泰米尔纳德邦农业大学科维尔帕蒂农业研究站建立的永久粪肥试验田为研究对象，研究不同养分管理方式对土壤理化性质的影响。土壤的理化性质主要受连续施用化肥或常年施用粪肥的影响。为了研究土壤的上述特性，采用随机区组设计(RBD)，采用9个不同处理，分别为T1-对照;T2- 100% RDF (40:20:40 NPK kg ha-1);T3- 50% RDF (20:10:20 NPK kg ha-1);T4- 50% N(作物残茬);T5- 50% n (fym);T6- 50%无机氮+ 50%有机氮(作物残茬)+ P (50%) + K (50%);T7- 50%无机氮+ 50%有机氮(FYM) + P (50%) + K (50%);T8- 100% RDF + 25 kg ZnSO4 ha-1;T9- FYM - 12.5 t ha-1。这些处理的效果随深度(0 ~ 15 cm;15-30 cm和30-45 cm)比较。结果表明，有机肥处理(T9- FYM - 12.5 t hm -1)的各项理化性能最好，其次为有机肥处理(T7- 50%无机氮+ 50%有机氮(FYM) + P (50%) + K(50%))和有机肥处理(T6- 50%无机氮+ 50%有机氮(作物残茬)+ P (50%) + K(50%)。
{"title":"Influence of Long Term Fertilization and Manures on Soil Physical and Chemical Properties of Udorthentic Chromusterts","authors":"V. Venkatesh, N. Sekaran, V. Sanjivkumar, S. Meena, K. Parthiban","doi":"10.9734/ijpss/2021/v33i2430772","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430772","url":null,"abstract":"To study the effect of different nutrient management practices on different soil physical and chemical properties in the permanent manurial experiment field of Tamil Nadu Agricultural University, which was established during 1982 at Agriculture Research Station, Kovilpatti. Soil physical and chemical properties are mainly affected by the continuous application of fertilizers or manures from years together. To study the above mentioned properties of soil the soil samples were collected from the permanent manurial experiment of kovilpatti where the Randomized Block Design (RBD) was followed with nine different treatments viz., T1- Control; T2- 100 % RDF (40:20:40 NPK kg ha-1); T3- 50% RDF (20:10:20 NPK kg ha-1); T4- 50% N (Crop residues); T5- 50 % N (FYM); T6- 50 % Inorganic N+ 50% organic N (crop residues) + P (50%) + K (50%) ; T7- 50 % Inorganic N+ 50% organic N (FYM) + P (50%) + K (50%); T8- 100 % RDF + 25 kg ZnSO4 ha-1; T9- FYM - 12.5 t ha-1. The effect of these treatments along with the depth (0-15 cm; 15-30 cm and 30-45 cm) was compared. The treatment receiving organics viz., T9- FYM - 12.5 t ha-1 was observed to be the best in all the physical and chemical properties which was then followed by INM viz., T7- 50 % Inorganic N+ 50% organic N (FYM) + P (50%) + K (50%) and T6- 50 % Inorganic N+ 50% organic N (crop residues) + P (50%) + K (50%).","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77521363","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430771
S. Nanthakumar, C. P. Kumar, P. Thilagam
Two field experiments were carried out at Horticultural College, Kalavai to study the effect of growth regulators and organics on growth and yield of spiny brinjal (Solanum melongena) var.VRM-1. Growth regulators viz., Salicylic acid @ 200 ppm, Brassinosteriods @ 0.1 ppm, Triacontanol @ 5 ppm and NAA @ 40 ppm and organics viz., Seaweed extract @ 1.0%, Humic acid @ 1.0%, Panchagavya @ 5.0% and Vermiwash @ 5.0% were tested and applied as foliar spray in spiny brinjal var VRM-1. Among the treatments tested, Panchagavya treatment recorded maximum value with regard to plant height (85.45 cm), leaf area (131.59 cm), leaf area index (3.66), branches per plant (21.3 Nos) , flowers per plant (55.5 Nos), fruits per plant (20.9 Nos), fruit length (5.8 cm), fruit circumference (14.7 cm) and individual fruit weight (82.1 g). Brassinosteroids treatment found to be effective in increasing root length (22.75 cm).
{"title":"Effect of Growth Regulators and Organics on Growth and Yield of Spiny Brinjal Variety VRM (Br) -1","authors":"S. Nanthakumar, C. P. Kumar, P. Thilagam","doi":"10.9734/ijpss/2021/v33i2430771","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430771","url":null,"abstract":"Two field experiments were carried out at Horticultural College, Kalavai to study the effect of growth regulators and organics on growth and yield of spiny brinjal (Solanum melongena) var.VRM-1. Growth regulators viz., Salicylic acid @ 200 ppm, Brassinosteriods @ 0.1 ppm, Triacontanol @ 5 ppm and NAA @ 40 ppm and organics viz., Seaweed extract @ 1.0%, Humic acid @ 1.0%, Panchagavya @ 5.0% and Vermiwash @ 5.0% were tested and applied as foliar spray in spiny brinjal var VRM-1. Among the treatments tested, Panchagavya treatment recorded maximum value with regard to plant height (85.45 cm), leaf area (131.59 cm), leaf area index (3.66), branches per plant (21.3 Nos) , flowers per plant (55.5 Nos), fruits per plant (20.9 Nos), fruit length (5.8 cm), fruit circumference (14.7 cm) and individual fruit weight (82.1 g). Brassinosteroids treatment found to be effective in increasing root length (22.75 cm).","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91254529","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430762
S. Karthik, U. Mukherjee
A field experiment was conducted to determine the population build-up of mustard aphid and their natural enemies in relation to abiotic factors at TCA, Dholi during the Rabi season of 2018-19 and 2019-20 respectively. The incidence of mustard aphid started in the 2nd and 3rd SMW of 2019 and 2020 respectively and reached maximum in 8th SMW in both the years. However, the predatory activity of coccinellids, syrphid larvae and spiders were started from 3rd SW with their peak activity at 3rd and 4th week of February in both the years. Mustard aphid population exhibited positive correlation with maximum temperature (0.347 & 0.543), minimum temperature (0.317 & 0.152) and negative correlation with relative humidity (-0.083 & -0.479) during 2019 & 2020 respectively and rainfall (-0.35) during 2020. However, natural enemies viz., coccinellids, syrphid larvae and spiders exhibited positive correlation with Tmax, Tmin, rainfall and negative correlation with RH in both the years.
{"title":"Influence of Abiotic Factors on Population of Aphid Complex and Its Coexisting Natural Enemies in Mustard Agroecosystem","authors":"S. Karthik, U. Mukherjee","doi":"10.9734/ijpss/2021/v33i2430762","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430762","url":null,"abstract":"A field experiment was conducted to determine the population build-up of mustard aphid and their natural enemies in relation to abiotic factors at TCA, Dholi during the Rabi season of 2018-19 and 2019-20 respectively. The incidence of mustard aphid started in the 2nd and 3rd SMW of 2019 and 2020 respectively and reached maximum in 8th SMW in both the years. However, the predatory activity of coccinellids, syrphid larvae and spiders were started from 3rd SW with their peak activity at 3rd and 4th week of February in both the years. Mustard aphid population exhibited positive correlation with maximum temperature (0.347 & 0.543), minimum temperature (0.317 & 0.152) and negative correlation with relative humidity (-0.083 & -0.479) during 2019 & 2020 respectively and rainfall (-0.35) during 2020. However, natural enemies viz., coccinellids, syrphid larvae and spiders exhibited positive correlation with Tmax, Tmin, rainfall and negative correlation with RH in both the years.","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76056124","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430770
V. Selvi, A. Nirmalakumari
Twelve accessions of littlemillet genotypes which included 10 germplasm accessions and two released check varieties were studied over five environments of rainy seasons of 2013 for their grain yield and stability. The results have shown that genotypes TNPsu 141 and TNPsu 28 had possessed around unit regression coefficient (b = 1.24 to 0.82), thus displaying average stability and are adaptable to all the above five different agro-ecological zones. Also, these genotypes had non- significant S2di values enabling it to predict the stability. Genotypes TNPsu 17, PM 29, TNPsu 18, and IPmr 886 manifested significantly higher single plant grain yield than the standard check varieties along with regression coefficient values of greater than one expressing above-average stability. These can be performed better in a favourable environment. However, they were classified as unstable due to their significant S2 di values revealing that the performance of the genotypes was unpredictable for the given environment. These genotypes were performed better under optimum conditions. Out of 12 genotypes MS 1826 and MS 4684 had an average response and appeared unpredictable stability. However, among the genotypes studied, TNPsu 141 possessed low yield and perform better in sub -optimum environments which are inferred by less than unit regression.
{"title":"Trait Based Adaptation and Yield Stability Parameters in Little Millet (Panicum sumatrense Roth. ex. Roem. and Schultz.)","authors":"V. Selvi, A. Nirmalakumari","doi":"10.9734/ijpss/2021/v33i2430770","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430770","url":null,"abstract":"Twelve accessions of littlemillet genotypes which included 10 germplasm accessions and two released check varieties were studied over five environments of rainy seasons of 2013 for their grain yield and stability. The results have shown that genotypes TNPsu 141 and TNPsu 28 had possessed around unit regression coefficient (b = 1.24 to 0.82), thus displaying average stability and are adaptable to all the above five different agro-ecological zones. Also, these genotypes had non- significant S2di values enabling it to predict the stability. Genotypes TNPsu 17, PM 29, TNPsu 18, and IPmr 886 manifested significantly higher single plant grain yield than the standard check varieties along with regression coefficient values of greater than one expressing above-average stability. These can be performed better in a favourable environment. However, they were classified as unstable due to their significant S2 di values revealing that the performance of the genotypes was unpredictable for the given environment. These genotypes were performed better under optimum conditions. Out of 12 genotypes MS 1826 and MS 4684 had an average response and appeared unpredictable stability. However, among the genotypes studied, TNPsu 141 possessed low yield and perform better in sub -optimum environments which are inferred by less than unit regression.","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76987449","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430761
S. Rathi, S. Upadhyay, P. Singh, Rajesh Kumar, P. ., P. Bisen, Bapsila Loitongbam, Sanchika Snehi
Aim: Identification of polymorphic markers is prerequisite for conducting any QTL mapping experiment because if the parents are polymorphic for the traits of interest, then further selection of plants in the progenies becomes easy. Hence, the objective of the present study was to identify polymorphic markers for grain quality and yield traits among the parental lines Improved Samba Mahsuri and Badshabhog. Place and Duration of Study: It was carried out at Molecular Breeding Lab, Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi - 221 005, India, during 2019. Methodology: Two parents Improved Samba Mahsuri and Badshabhog were used for the present study. The DNA extraction was done as per the CTAB method suggested by Murray and Thompson. Standard PCR protocol was followed. Results: For parental polymorphism survey, a total of 576 randomly selected SSR markers including 26 gene specific markers related to aroma, cooking and eating quality, grain dimension and yield related traits distributed across the 12 chromosomes of rice were used. Overall, 96 markers including 4 gene specific markers were found to be polymorphic between the two genotypes indicating a total polymorphism percentage of 16.67%. The highest polymorphism percentage was recorded on chromosome 6 (26.67%) followed by chromosome 4 (21.43%) and the lowest polymorphism percentage was observed on chromosome 10 (8.93%). The gene specific markers nksbad2, ARO7, BADEX7_5 and SSI were found to be polymorphic. Conclusion: Based on the present study it may be concluded that the polymorphic markers identified will further be utilized in genotyping of F2:3 population, linkage analysis and mapping QTL’s for grain quality and yield traits.
{"title":"Study of Parental Polymorphism and Allelic Variation for Grain Quality and Yield Traits in Rice (Oryza sativa L.) Using SSR Markers","authors":"S. Rathi, S. Upadhyay, P. Singh, Rajesh Kumar, P. ., P. Bisen, Bapsila Loitongbam, Sanchika Snehi","doi":"10.9734/ijpss/2021/v33i2430761","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430761","url":null,"abstract":"Aim: Identification of polymorphic markers is prerequisite for conducting any QTL mapping experiment because if the parents are polymorphic for the traits of interest, then further selection of plants in the progenies becomes easy. Hence, the objective of the present study was to identify polymorphic markers for grain quality and yield traits among the parental lines Improved Samba Mahsuri and Badshabhog. \u0000Place and Duration of Study: It was carried out at Molecular Breeding Lab, Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi - 221 005, India, during 2019. \u0000Methodology: Two parents Improved Samba Mahsuri and Badshabhog were used for the present study. The DNA extraction was done as per the CTAB method suggested by Murray and Thompson. Standard PCR protocol was followed. \u0000Results: For parental polymorphism survey, a total of 576 randomly selected SSR markers including 26 gene specific markers related to aroma, cooking and eating quality, grain dimension and yield related traits distributed across the 12 chromosomes of rice were used. Overall, 96 markers including 4 gene specific markers were found to be polymorphic between the two genotypes indicating a total polymorphism percentage of 16.67%. The highest polymorphism percentage was recorded on chromosome 6 (26.67%) followed by chromosome 4 (21.43%) and the lowest polymorphism percentage was observed on chromosome 10 (8.93%). The gene specific markers nksbad2, ARO7, BADEX7_5 and SSI were found to be polymorphic. \u0000Conclusion: Based on the present study it may be concluded that the polymorphic markers identified will further be utilized in genotyping of F2:3 population, linkage analysis and mapping QTL’s for grain quality and yield traits.","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75131635","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}
Pub Date : 2021-12-14DOI: 10.9734/ijpss/2021/v33i2430764
G. Srinivasan, S. Pazhanivelan, S. Krishnasamy, N. S. Sudarmanian, S. Rajeswari, B. Kannan
DSSAT CROPGRO-Cotton Model (version 4.7.5) was generally used to forecast the effect of climate change on productivity. The objective of this study was to calibrate and validate this model in Tamil Nadu, India for simulation of development, growth and seed cotton yield of Suraj cotton cultivars under varied planting dates viz., 28th July, 11th August, 18th August, 25th August, 8th September and 15th September. The model was calibrated with data (phenology, biomass and yield components) collected during 2019. Calibration of CROPGRO-Cotton model with genetic coefficients of cultivar Suraj for seed cotton yield (kg ha-1). Simulation of days to flowering, days from planting to first pod and physiological maturity, LAI and seed cotton yield with normalized RMSE (NRMSE) values of less than 10% across all the various planting dates densities were considered excellent. Finally, we discovered that planting at the right time can mitigate many of the negative effects of fluctuating weather on cotton productivity. As a result conclude that DSSAT model will be used to make decision on cotton planting in changing climates.
{"title":"Estimating Genetic Parameters for DSSAT CROPGRO-Cotton Model Calibration and Validation","authors":"G. Srinivasan, S. Pazhanivelan, S. Krishnasamy, N. S. Sudarmanian, S. Rajeswari, B. Kannan","doi":"10.9734/ijpss/2021/v33i2430764","DOIUrl":"https://doi.org/10.9734/ijpss/2021/v33i2430764","url":null,"abstract":"DSSAT CROPGRO-Cotton Model (version 4.7.5) was generally used to forecast the effect of climate change on productivity. The objective of this study was to calibrate and validate this model in Tamil Nadu, India for simulation of development, growth and seed cotton yield of Suraj cotton cultivars under varied planting dates viz., 28th July, 11th August, 18th August, 25th August, 8th September and 15th September. The model was calibrated with data (phenology, biomass and yield components) collected during 2019. Calibration of CROPGRO-Cotton model with genetic coefficients of cultivar Suraj for seed cotton yield (kg ha-1). Simulation of days to flowering, days from planting to first pod and physiological maturity, LAI and seed cotton yield with normalized RMSE (NRMSE) values of less than 10% across all the various planting dates densities were considered excellent. Finally, we discovered that planting at the right time can mitigate many of the negative effects of fluctuating weather on cotton productivity. As a result conclude that DSSAT model will be used to make decision on cotton planting in changing climates.","PeriodicalId":14335,"journal":{"name":"International Journal of Plant & Soil Science","volume":"212 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76051603","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}
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