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Genetic Variability, Correlation and Path Coefficient Analysis in Advanced Matromorphic Generations of Garden Pea (Pisum sativum L.) 豌豆高级原形世代遗传变异、相关及通径分析
4区 生物学 Q3 AGRONOMY Pub Date : 2023-08-23 DOI: 10.18805/lr-5128
Sonali Sharma, Anil Bhushan, R.K. Samnotra, Bupesh Kumar, Owais Ali Wani, Reshav Naik, Manoj Kumar
Background: Garden pea is an important leguminous vegetable crop but the lack of high yielding and stable varieties is the major constraint. There is a need to explore genetic variability for the crop improvement programs. Considering this, the current investigation was aimed to study the genetic variability and relationship among the yield and its contributing traits in advanced matromorphic progenies for effective production. Methods: A two year experiment was carried out at SKUAST- Chatha, Jammu during the cropping season of 2020-21 and 2021-22 to find out the genetic variability parameters, path coefficient and correlation studies for thirteen yield contributing traits in twenty two garden pea genotypes (twelve advanced matromorphic progenies and ten parental lines). Result: The results revealed high variability among the tested genotypes. The values of phenotypic coefficient of variation (PCV) were greater as compared to the genotypic coefficient of variation (GCV) for all the traits. High heritability along with genetic advance ( greater than 20%) was observed for all the traits whereas pod length (PL) and shelling percentage (SP) were exceptions. Pod yield per plant ( PYPP) had positive genotypic and phenotypic correlation with node at which first flower appears (NFFA), plant height(PH), internodal distance (ID), no. of pods per node (NPPN), pod length (PL), no. of seeds per pod(NSPP), no. of pods per plant (NPP), days to first picking (DFF), average pod weight (APW) and shelling percentage (SP). Positive direct effect on pod yield per plant (PYPP) was exhibited by traits viz., days to 50 per cent flowering (DFPF), node at which first flower appears (NFFA), internodal distance (ID), no. of pods per node (NPPN), pod width (PW), no. of seeds per pod (NSPP), no. of pods per plant (NPPP), days to first picking (DFP) and average pod weight (APW) in path coefficient analysis.
背景:豌豆是重要的豆科蔬菜作物,但缺乏高产稳定的品种是制约其发展的主要因素。有必要探索作物改良计划的遗传变异。因此,本研究的目的是研究高级原态后代的遗传变异性以及产量及其相关性状之间的关系,以达到有效生产的目的。方法:于2020-21和2021-22种植季在查谟查塔进行为期2年的试验,对22个豌豆基因型(12个高级原态后代和10个亲本系)的13个产量贡献性状进行遗传变异参数、通径系数和相关研究。结果:结果显示在测试的基因型之间有很高的变异性。各性状表型变异系数(PCV)均大于基因型变异系数(GCV)。除荚长(PL)和脱壳率(SP)外,所有性状均具有较高的遗传率和遗传进阶性(大于20%)。单株荚果产量(PYPP)与首花出现节数(NFFA)、株高(PH)、节间距离(ID)、株高(PH)、籽粒数(n)和籽粒数(n)均呈显著正相关。每节点荚果数(NPPN),荚果长度(PL);每荚种子数(NSPP);单株荚果数(NPP)、首采天数(DFF)、平均荚果重(APW)和脱壳率(SP)。开花至50%天数(DFPF)、首花节点(NFFA)、节间距离(ID)、结数(n)、结数(n)等性状对单株荚果产量(PYPP)有直接正向影响。每节荚果数(NPPN)、荚果宽度(PW)、每荚种子数(NSPP);通径系数分析中单株荚果数(NPPP)、首采天数(DFP)和平均荚果重(APW)。
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引用次数: 0
Performance of Groundnut (Arachis hypogaea L.) as Influenced by Integrated Nutrient Management Under Fertigation 施肥下综合养分管理对花生生产性能的影响
4区 生物学 Q3 AGRONOMY Pub Date : 2023-06-05 DOI: 10.18805/lr-5097
N. Sunitha, G. Krishna Reddy, S. Tirumala Reddy, M. Raveendra Reddy, K.V. Nagamadhuri
Background: Groundnut (Arachs hypogeae) is a prominent legume vegetable oil seed crop in India and it’s lower productivity is a matter of concern attributed to the major constraints of inefficient irrigation and nutrient management in rabi season. Fertigation is the recent innovative gearing up technology in which the nutrients are applied in précised quantity along with drip irrigation at regular intervals throughout the crop growth matching with their requirement, resulting in enhanced resource use efficiency and crop yields. Liquid formulations of biofertilizers can be diluted sufficiently and applied through drip irrigation uniformly to the root zone of crop. Humic acid is widely used as fertilizer synergist and hence in combination with inorganic fertilizers can enhance their use efficiency and improve root zone activity. The present experiment was conducted to develop an integrated nutrient management practice in combination of chemical fertilizers with organic sources i.e., co inoculation of liquid biofertilisers and humic acid under fertigation for rabi groundnut under fertigation. Methods: The experiment was comprised of seven treatments of integrated nutrient management practices viz., T1- Soil application of 100% RDF(30-40-50 kg N,P2O5 and K2O haˉ¹) + Drip irrigation ; T2- 75 % RDF + Liquid biofertilizers @ 3.75 l haˉ1 ; T3- 75% RDF + Humic acid @ 12.5 l haˉ1 ; T4- 50 % RDF + Liquid biofertilizers @ 3.75 l haˉ1 ; T5–50 % RDF + Humic acid @ 12.5 l haˉ1 ; T6- 100 % RDF + Liquid biofertilizers @ 3.75 l haˉ1 ; T7- 100 % RDF+Humic acid @ 12.5 l haˉ1 which were laid out in randomised block design with three replications. Result: The integrated nutrient management practice with application of 100% RDF (30-40-50 kg N,P2O5 and K2O) + Liquid biofertilizers @ 3.75 l ha-1 (Rhizobium, Phosphorus solubilising bacteria and Potassium solubilising bacteria each @ 1.25 l ha-1) through fertigation recorded tallest plants (49.9 cm), highest LAI(2.05), SCMR value(34.5), highest number of nodules plant -1(60.2), pods plant-1(11.2), 100 pod weight(125.7 g), kernel weight (52.9 g) which resulted in the highest pod (3902 kg ha-1), kernel (2666 kg ha-1), haulm yied (4363kg ha-1 ), higher nutrient uptake and net returns (Rs.130818 ha-1) of groundnut, which were comparable to 100% RDF + Humic acid @ 12.5l ha-1 . However 75% RDF + Liquid biofertilizers @ 3.75 l ha-1 through fertigation recorded growth and pod yield (3988 kg ha-1) of groundnut on par with the best treatment of 100% RDF + Liquid biofertilizers @ 3.75 l ha-1 with a saving of 25 per cent of RDF and net returns of (Rs.130818 ha-1) and higher B:C ratio (2.31).
背景:花生(Arachs hypogeae)是印度一种重要的豆科植物油种子作物,由于灌溉和养分管理效率低下,其产量较低是一个令人担忧的问题。施肥是最近的一项创新技术,在作物生长的整个过程中,按规定的数量施用营养物质,并根据作物的需要定期进行滴灌,从而提高资源利用效率和作物产量。生物肥料的液体配方可以充分稀释,并通过滴灌均匀地施用到作物的根区。腐植酸作为肥料增效剂被广泛使用,与无机肥料配伍可提高其利用效率,改善根区活性。本试验旨在建立化学肥料与有机肥料相结合的综合营养管理方法,即在施肥条件下同时接种液体生物肥料和腐植酸。方法:试验采用7个综合养分管理措施:T1- 100% RDF(30-40-50 kg N、P2O5和K2O hm - 1) +滴灌;T2- 75% RDF +液体生物肥料@ 3.75 l haT3- 75% RDF +腐植酸@ 12.5 l ha - 1;T4- 50% RDF +液体生物肥料@ 3.75 l / ha;t5 - 50% RDF +腐植酸@ 12.5 l ha - 1;T6- 100% RDF +液体生物肥料@ 3.75升/立方米;T7- 100% RDF+腐植酸@ 12.5 l ha - 1,随机区组设计,3个重复。结果:施用100% RDF (30-40-50 kg N、P2O5和K2O) +液体生物肥料(3.75 l ha-1)(根瘤菌、增磷菌和增钾菌各@ 1.25 l ha-1)的综合营养管理实践记录了最高植株(49.9 cm)、最高LAI(2.05)、SCMR值(34.5)、最高根瘤数(60.2)、最高荚果数(11.2)、最高荚果重(125.7 g)、最高籽粒重(52.9 g),最高荚果数(3902 kg ha-1)。花生籽粒(2666 kg ha-1),收获量(4363kg ha-1),养分吸收和净收益(Rs.130818 ha-1)较高,与100% RDF +腐植酸@ 12.5l ha-1相当。然而,75% RDF +液体生物肥料(3.75 l hm -1)通过施肥记录了花生的生长和荚果产量(3988 kg hm -1),与100% RDF +液体生物肥料(3.75 l hm -1)的最佳处理相当,节约了25%的RDF,净收益为(Rs.130818 hm -1), B:C比更高(2.31)。
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引用次数: 0
Insecticide Resistance Development and Detoxification Enzyme Activities of Spodoptera litura (Fabricius) in Soybean from Kumaon Himalayas Kumaon - Himalayas大豆斜纹夜蛾(Spodoptera斜纹夜蛾)抗性发育及解毒酶活性
4区 生物学 Q3 AGRONOMY Pub Date : 2023-05-30 DOI: 10.18805/lr-5101
Rashmi Joshi, Neeta Gaur, Sudha Mathpal
Background: Soybean is an important crop of Uttarakhand both in hills as well as in plains and Spodoptera litura is an important pest of soybean in Uttarakhand. Several insecticides have been in use for its management and resistance has been observed against different group of insecticides. Thus, to study the level of infestation and insecticide resistance from soybean fields of hill farmers of Kumaon Himalaya, survey and experiments were conducted. Methods: Survey was conducted and scale of infestation was determined. Chemical and biochemical assay were conducted to study insecticide resistance. For chemical assay IRAC Method No. 7 using insecticides indoxacarb 14.5% SC, chlorantraniliprole 18.5% Sc, fipronil 5% SC, chlorpyriphos 50%+cypermethrin 5% EC and profenofos 40%+cypermethrin 4% EC and for biochemical assay the specific activity of Carboxylesterase, Acetyl choline esterase, Mono-oxygenase and Glutathione-S-transferase was studied. Result: The infestation level from different regions showed the presence of S. litura, ranging from mild to severe infestation. The resistance ratio of different insecticides used ranged from a low to an extremely high resistance level with LC50 ranging from 0.37 µg/ml to 1648.84 µg/ml. The biochemical analysis of carboxylesterase, acetylcholinesterase, monooxygenase and gluthione-s-transferase showed an overproduction of these detoxification enzymes in the resistant population.
背景:大豆是北阿坎德邦丘陵和平原的重要作物,斜纹夜蛾是北阿坎德邦重要的大豆害虫。已使用几种杀虫剂对其进行管理,并观察到对不同种类杀虫剂的抗药性。为此,通过调查和试验,研究了库马高原山地农民大豆田的侵染程度和对杀虫剂的抗性。方法:进行调查,确定侵害规模。采用化学生化试验研究其抗药性。化学分析采用IRAC法7号,采用茚虫威14.5% SC、氯虫腈18.5% SC、氟虫腈5% SC、毒死蜱50%+高效氯氰菊酯5% EC、丙烯磷40%+高效氯氰菊酯4% EC进行,生化分析采用羧酯酶、乙酰胆碱酯酶、单加氧酶、谷胱甘肽s -转移酶的比活性。结果:不同地区均有斜纹夜蛾侵染,侵染程度由轻到重。不同杀虫剂的抗性比从低到极高,LC50为0.37µg/ml ~ 1648.84µg/ml。羧酸酯酶、乙酰胆碱酯酶、单加氧酶和谷胱甘肽-s转移酶的生化分析表明,抗性群体中这些解毒酶过量产生。
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引用次数: 0
Estimation of Total Factor Productivity Growth of Major Pulse Crops in Rajasthan, India 印度拉贾斯坦邦主要脉冲作物全要素生产率增长估算
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2021-07-27 DOI: 10.18805/LR-4611
D. Verma, Hari Singh, S. Burark, Jitendra Suman, Priyanka Lal
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引用次数: 0
Synthesizing Nanoencapsulated Sulfentrazone Herbicide and Optimizing Time and Dose for Season Long Weed Management in Irrigated Blackgram (Vigna mungo L.) 纳米磺胺菊酮类除草剂的合成及其对水田长季杂草管理的时间和剂量优化
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2021-04-22 DOI: 10.18805/LR-4447
Vikram Kannamreddy, C. Chinnamuthu, S. Marimuthu, C. Bharathi
Background: Pulses are nutritious edible seeds of leguminous plants, have become an essential part of the human diet. Among the pulses, blackgram (Vigna mungo L.) is an important legume crop cultivated in tropical and subtropical regions of the world. Even though there are so many factors responsible for the lower yield of blackgram, weeds play a major role. Sulfentrazone is a broad spectrum herbicide belongs to the family of phenyl triazolinone. Sulfentrazone has high persistence and mobility with mean partition coefficient Koc = 43 and sorption coefficient Kd less than 1 and also has high horizontal and vertical leaching potential. Even though generally used herbicides in blackgram like pendimethalin, imazethapyr and quizalofop-ethyl are helpful in managing weeds, they have to apply multiple times or have to integrate with other methods of weed management which is expensive. So as to reduce the usage of multiple herbicides, to avoid manual weeding and to achieve season long weed control without affecting the environment the nano-encapsulated sulfentrazone is the better alternative and it gives better solution for the above constraints besides increasing the productivity.Methods: Laboratory and field experiments were conducted in the Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore during 2019-2020. Laboratory experiment was conducted to prepare nano-encapsulated sulfentrazone herbicide using solvent evaporation method. Screening trial was conducted in field with 17 treatments in randomized block design. Main trial was conducted with nine treatments of randomized block design by selecting the best performing treatments in screening trial. A confirmatory trial was also conducted by using same treatments.Result: The encapsulated sulfentrazone particles were characterized in SEM (Scanning electron microscope) and also analysed with EDAX (Energy dispersive X-ray analysis) for elemental analysis, which is followed by particle size analysis and zeta potential to know the size and stability respectively. All these tests concluded that the sulfentrazone particles were encapsulated correctly and might be useful for slow release of the particle and also for reducing vertical and horizontal leachability. The field trials revealed that sulfentrazone @ 0.30 kg a.i. ha-1 with encapsulation applied at 1 DBS is better alternative for the season long weed management in blackgram without affecting the soil and ground water, as well as increasing the productivity.
背景:豆类是豆科植物营养丰富的可食用种子,已成为人类饮食的重要组成部分。在豆类中,黑豆(Vigna mungo L.)是世界上热带和亚热带地区重要的豆科作物。尽管有很多因素导致黑豆的低产量,但杂草起了主要作用。磺胺曲酮是一种广谱除草剂,属于苯基三唑啉酮家族。磺胺酮具有较高的持久性和迁移率,平均分配系数Koc = 43,吸附系数Kd小于1,具有较高的水平和垂直浸出潜力。尽管在黑格兰中常用的除草剂,如戊二甲基灵、吡唑乙酯和吡唑乙酯对控制杂草有帮助,但它们必须多次施用,或者必须与其他昂贵的杂草管理方法相结合。为了减少多种除草剂的使用,避免人工除草,在不影响环境的情况下实现全季杂草控制,纳米胶囊化磺胺酮是较好的替代方案,在提高产量的同时,也较好地解决了上述制约因素。方法:2019-2020年在哥印拜陀泰米尔纳德邦农业大学农学系进行室内和田间试验。采用溶剂蒸发法制备了磺胺曲酮纳米包封除草剂。田间筛选试验采用随机区组设计,共17个处理。主试验采用随机区组设计,筛选试验中表现最佳的9个治疗。采用相同的治疗方法也进行了验证性试验。结果:用SEM(扫描电子显微镜)和EDAX(能量色散x射线分析)对包封的磺胺曲酮颗粒进行了表征,并进行了元素分析、粒度分析和zeta电位分析,分别了解了颗粒的大小和稳定性。所有这些试验都表明,磺胺曲酮颗粒被正确封装,可能有助于颗粒的缓慢释放,也有助于降低垂直和水平浸出率。田间试验结果表明,1 DBS时施用0.30 kg a.i. ha-1的磺胺酮包埋处理是黑格兰长季杂草管理的较好选择,且不影响土壤和地下水,并能提高生产力。
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引用次数: 2
High Quantitative Trait Variability in Faba Bean Mutagenized Population for High-yielding Breeding Program in Saudi Arabia 沙特阿拉伯蚕豆高产育种诱变群体的高数量性状变异
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2021-03-31 DOI: 10.18805/LR-601
Nurmansyah, S. Alghamdi, H. Migdadi
Background: The narrow genetic base and environmental stresses are behind the low rate of faba bean yield in the past two decades. Drought stress is one of the most destructive abiotic stresses. Using induced mutagenesis on locally adapted landrace cultivar is proposed to cope with this problem. Methods: This study was conducted on faba bean landrace cultivar of Saudi Arabia, namely Hassawi 2, treated by 25 and 50 Gray gamma radiation. The genetic diversity assessment of M2 mutant populations was based on seven quantitative traits and nine Amplified Fragment Length Polymorphism (AFLP) primer combinations. Result: A total of 3419 M2 seeds were planted, of which 2782 (81.4%) seeds germinated and 2658 plants survived. A 5 to a 10-fold range of quantitative traits studied among mutant plants compared to control plants showed high variability. The number of pods per plant and seeds per plant was a valid selection criterion for a high-yielding faba bean breeding program. Nine AFLP primer combinations generated 1079 polymorphic alleles from 88 samples that comprised mutant and control plants. Shannon index (I) and expected heterozygosity (He) were 0.337 and 0.206, respectively. The AFLP results validated high variability in M2 populations. These findings will assist faba bean breeders in developing high-yielding cultivars with drought stress tolerance.
背景:近二十年来蚕豆产量低的原因是遗传基础狭窄和环境胁迫。干旱胁迫是最具破坏性的非生物胁迫之一。为了解决这一问题,建议对地方适应品种进行诱变。方法:以沙特阿拉伯地方栽培蚕豆Hassawi 2号为试验材料,进行25和50 Gray γ辐射处理。利用7个数量性状和9个扩增片段长度多态性(AFLP)引物组合对M2突变群体进行遗传多样性评价。结果:共种植M2种子3419株,其中发芽2782株(81.4%),成活2658株。突变植株的数量性状是对照植株的5 ~ 10倍,表现出较高的变异性。单株荚果数和单株种子数是蚕豆高产育种的有效选择标准。9个AFLP引物组合从88个突变株和对照株中获得1079个多态性等位基因。Shannon指数(I)和期望杂合度(He)分别为0.337和0.206。AFLP结果证实了M2群体的高变异性。这些研究结果将有助于蚕豆育种者培育抗旱高产品种。
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引用次数: 1
Evaluation of Insecticides and Biopesticides against Helicoverpa armigera in Different Modules of Short Duration Pigeonpea 杀虫剂和生物农药对不同短存期鸽豆棉铃虫的防治效果评价
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2021-02-12 DOI: 10.18805/LR-4313
A. Yadav, Ram Keval, A. Yadav
Background: Pigeonpea [Cajanus cajan (L.) Millsp.] is an important legume crop from the Family Fabaceae. Pigeonpea commonly known as ‘Arhar’ or ‘Tim’ is mainly consumed in the form of split pulse as ‘dal’. Pigeonpea is cultivated as an annual or semi-perennial crop, usually in mixed cropping systems. Pigeonpea is attacked by insect-pests right from sowing to harvesting and also during the storage. Gram pod borer, H. armigera has been a major pest in most parts of the country. Therefore, keeping these views in mind, the present study was conducted.Methods: Present investigations were carried out during Kharif season of 2013 and 2014 to evaluate some insecticides and biopesticides against Helicoverpa armigera in various modules on short duration pigeonpea.Result: The mean larval population of H. armigera after spray was minimum in M3 (1.15 larvae plant-1) followed by M2 (1.17 larvae plant-1) and maximum in module M5 (1.61 larvae plant-1) during Khaif 2013. During Khaif 2014 mean larval population of H. armigera after spray was minimum in M2 (1.11 larvae plant-1) followed by M3 (1.12 larvae plant-1) and maximum in module M5 (1.58 larvae plant-1). Hence these modules (M2 and M3) can be adopted by the farmers for effective and economic management of H. armigera.
背景:鸽豆[Cajanus cajan (L.)]Millsp。是豆科重要的豆科作物。鸽豆通常被称为“Arhar”或“Tim”,主要以“dal”的分裂脉冲形式食用。鸽子豆作为一年生或半多年生作物种植,通常在混合种植系统中。从播种到收获,以及在储存过程中,鸽子豆都会受到害虫的侵害。棉铃虫是我国大部分地区的主要害虫。因此,考虑到这些观点,进行了本研究。方法:在2013年和2014年秋冬季节进行调查,评价几种杀虫剂和生物农药对短停留期鸽子不同模块的棉铃虫的杀灭效果。结果:2013年夏夏季节,喷施后棉铃虫平均幼虫数量M3最小(1.15只),M2次之(1.17只),M5最大(1.61只)。2014 Khaif期间,喷施后棉铃虫平均幼虫数量M2最小(1.11只),M3次之(1.12只),M5最大(1.58只)。因此,这些模块(M2和M3)可以被农民用于有效和经济地管理棉铃虫。
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引用次数: 1
Production Potential and Economic Returns of Bed Planted Chickpea (Cicer arietinum L.) as Influenced by Different Intercropping Systems 不同间作制度对床栽鹰嘴豆生产潜力和经济效益的影响
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2020-12-03 DOI: 10.18805/lr-4287
M. V. Priya, T. Singh, K. S. Saini, S. Singh
Background: Chickpea (Cicer arietinum L.) is the third most important pulse crop produced after dry bean and peas in the world. Amongst pulses, chickpea is the major crop in India but for international market the quality of this crop has to be improved which may be possible by evaluation of different planting techniques. No systematic research and adequate technologies have been reported in Punjab on intercropping of different crops in chickpea. The current study aimed to find out the effect of different intercrops on growth and yield of bed planted chickpea based intercropping systems.Methods: A field experiment was carried out during the rabi season of 2017 and 2018 to evaluate the productivity and economic viability of bed planted chickpea based intercropping systems.The experiment was laid out in a randomized block design consisting of four replications with thirteen treatments.Result: Results showed that sole chickpea recorded highest seed yield and it was statistically at par with seed yield that obtained under chickpea + oats fodder (2:1), chickpea + oats fodder (4:1) and chickpea + linseed (4:1) intercropping systems. However, oilseed rape and barley as intercrops showed adverse effect on yield and yield attributes of chickpea. Chickpea + oats fodder in 2:1 row ratio recorded highest chickpea equivalent yield of 24.07 and 24.77 q/ha and system productivity of 15.96 and 15.60 kg/ha/day during 2017 and 2018, respectively. Higher net returns (Rs. 63098 and 70924/ha), benefit cost ratio (1.47 and 1.63) and production efficiency (417.9 and 446.1 Rs/ha/day) were also recorded in chickpea + oats fodder (2:1) intercropping system over sole chickpea (Rs. 44862 and 53769/ha and 1.21 and 1.41) during both the years. Chickpea + oats fodder (4:1), chickpea + linseed (2:1) and chickpea + linseed (4:1) also recorded significantly higher chickpea equivalent yield, net returns and benefit cost ratio as compared to sole chickpea.
背景:鹰嘴豆(Cicer arietinum L.)是世界上仅次于干豆和豌豆的第三大豆类作物。在豆类中,鹰嘴豆是印度的主要作物,但对于国际市场来说,鹰嘴豆的质量必须提高,这可能通过评估不同的种植技术来实现。旁遮普省还没有关于鹰嘴豆不同作物间作的系统研究和适当的技术报道。本研究旨在了解不同间作方式对床播鹰嘴豆生长和产量的影响。方法:在2017年和2018年rabi季节进行田间试验,评价床栽鹰嘴豆间作系统的生产力和经济可行性。试验采用随机区组设计,包括4个重复,13个处理。结果:单鹰嘴豆的种子产量最高,与鹰嘴豆+燕麦饲料(2:1)、鹰嘴豆+燕麦饲料(4:1)和鹰嘴豆+亚麻籽(4:1)套作的种子产量在统计学上相当。油菜和大麦间作对鹰嘴豆的产量和产量性状有不利影响。2017年和2018年,行比为2:1的鹰嘴豆+燕麦饲料的鹰嘴豆当量产量最高,分别为24.07和24.77 q/ha,系统生产力最高,分别为15.96和15.60 kg/ha/day。鹰嘴豆与燕麦饲料(2:1)套作的净收益(63098卢比和70924卢比/公顷)、效益成本比(1.47卢比和1.63卢比)和生产效率(417.9卢比和446.1卢比/公顷/日)均高于单鹰嘴豆(44862卢比和53769卢比/公顷、1.21卢比和1.41卢比)。鹰嘴豆+燕麦饲料(4:1)、鹰嘴豆+亚麻籽(2:1)和鹰嘴豆+亚麻籽(4:1)的鹰嘴豆当量产量、净回报率和效益成本比均显著高于单鹰嘴豆。
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引用次数: 0
Cross-tolerance Physiology of Chickpea (Cicer arietinum L.) Genotypes under Combined Salinity and High Temperature Stress Condition 鹰嘴豆的交叉耐受生理盐高温联合胁迫条件下的基因型
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2020-12-03 DOI: 10.18805/lr-4390
Trisha Sinha, A. Singh, Shailesh Kumar
Background: Chickpea at seedling stage is highly sensitive to salinity and high temperature stress. Many studies explained plant responses under independent salinity and high temperature stress, but very little findings had revealed the combined effects of these two stresses on plants. So, the present experiment was aimed to study the response of chickpea genotypes for growth parameters and stress tolerance indices at seedling stage under individual and combined salinity and high temperature stress.Methods: A laboratory experiment during rabi season of 2018-2019 was conducted with thirty chickpea genotypes by comparing their responses under different salinity stresses i.e. EC 4.0 dSm-1 and 8.0 dSm-1 and high temperature (37°C). Seedling growth parameters i.e. germination percentage, vigour index and seedling dry weight along with stress tolerance indices like yield stability index and tolerance index were measured for 10-day-old seedlings.Result: The results revealed genotypic variations for all the parameters, based on which the genotypes KPG-59, IPC 2013-74 and NDG 15-6 were identified as tolerant, whereas KWR-108, BG-3075 and BG-3076 as susceptible. Interestingly, the results also showed that the tolerant genotypes exhibited maximum cross-tolerance at highest level of stress (T5) for germination percentage and vigour index, over control (T0), which might be attributed to their acclimatization while facing different stresses during early growth. So, the genotypic variations in chickpea for these parameters at germination stage might be good criteria for selection of tolerant genotypes under salinity and high temperature individually and also when combined.
背景:鹰嘴豆苗期对盐胁迫和高温胁迫高度敏感。许多研究解释了植物在盐度和高温胁迫下的反应,但很少有研究揭示了这两种胁迫对植物的综合影响。因此,本试验旨在研究鹰嘴豆基因型在单独和联合盐高温胁迫下对苗期生长参数和耐胁迫指标的响应。方法:在2018-2019年rabi季,采用30个鹰嘴豆基因型进行室内试验,比较不同盐度胁迫(EC 4.0 dSm-1和8.0 dSm-1)和高温(37°C)下鹰嘴豆基因型的反应。测定了10日龄幼苗的发芽率、活力指数和干重等生长参数,以及产量稳定指数和耐受性指数等抗逆性指标。结果:各指标均存在基因型差异,其中KPG-59、IPC 2013-74和NDG 15-6为耐受性基因型,KWR-108、BG-3075和BG-3076为易感基因型。耐受性基因型在最高胁迫水平(T5)下对发芽率和活力指数表现出最大的交叉耐受性,高于对照(T0),这可能与它们在生长早期面对不同胁迫时的驯化有关。因此,鹰嘴豆在萌发期这些参数的基因型变异可以作为选择耐盐和耐高温基因型的良好标准。
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引用次数: 1
Response of Microorganisms in Alfalfa Rhizosphere to Microbial Inoculation 苜蓿根际微生物对微生物接种的响应
IF 0.8 4区 生物学 Q3 AGRONOMY Pub Date : 2020-10-13 DOI: 10.18805/LR-514
S. Andjelkovič, J. Radović, S. Babić, T. Vasić, S. Djuric, D. Stamenov, T. H. Jafari
Background: Various microorganisms that can have a positive or negative effect on plant development are present in the rhizospheric soil of alfalfa. The research aimed to investigate the impact of two nitrogen-fixing bacteria and two species of the phytopathogen fungus Colletotrichum on the abundance of aminoheterotrophs, nitrifying and denitrifying bacteria in the rhizosphere of three cultivars of alfalfa.Methods: The experiment was carried in vegetation pots as three factorial, where the first factor was alfalfa cultivar (Affinity+Z, K-28 and Perry), the second was the isolate of phytopathogen fungus Colletotrichum: C. trifolii (isolate Coll 4) and C. destructivum (two isolates: Coll-11 and Coll 657); and the third was the variant of bacterial inoculation (Azotobacter chroococcum and Sinorhizobium meliloti). The number of microorganisms was determined by introducing a diluted soil suspension into proper media and counted per one gram of absolutely dry soil.Result: According to the Fisher test applied inoculation microbial inoculation with nitrogen-fixing bacteria and phytopathogen fungus had different effects on the abundance of examined microorganisms in rizospheric soil of different alfalfa cultivars.
背景:紫花苜蓿根际土壤中存在着对植物发育有积极或消极影响的各种微生物。研究了两种固氮菌和两种植物病原菌炭疽菌对3个苜蓿品种根际氨异养菌、硝化菌和反硝化菌丰度的影响。方法:采用三因子试验方法,以苜蓿品种亲和+Z、K-28和Perry为第一因子,以植物病原菌炭黑菌(C. trifolii, Coll 4)和破坏菌(C. destructivum, Coll 11和Coll 657)为第二因子;三是细菌接种变异(嗜绿固氮杆菌和嗜绿中华根瘤菌)。微生物的数量是通过将稀释的土壤悬浮液引入适当的培养基中并计算每克绝对干燥的土壤的数量来确定的。结果:根据Fisher试验,采用微生物接种法接种固氮菌和植物病原菌对不同苜蓿品种土壤中微生物丰度的影响不同。
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引用次数: 0
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Legume Research
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