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Studies on growth and yield characters of chickpea (Cicer arietinum L.) varieties suitable for mechanical harvesting 适合机械采收的鹰嘴豆品种生长及产量特性研究
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.079
S. J. Basha, V. Jayalakshmi, S. K. Ahammed, N. Kamakshi
The growth and yield characters of chickpea varieties suitable for mechanical harvesting were evaluated through field experiment conducted for three consecutive years (2016__17 to 2018__19) during rabi season on vertisols under rainfed conditions at Regional Agricultural Research Station, Nandyal, Andhra Pradesh. The investigation was carried out in split plot design with three replications. Two plant geometries (30.0 × 10.0 cm and 22.5 × 10.0 cm) were assigned to main plots and six chickpea varieties (viz., GBM 2, Dheera, CSJ 515, HC 5, Phule G 08108 and BRC 1) were assigned to sub plots. Pooled analysis of experimental results indicated that significantly higher number of branches per plant (8.7) and number of pods per plant (31.1) and test weight (24.3 g) were observed under 30.0 × 10.0 cm when compared to 22.5 × 10.0 cm. Higher plant height (44.8 cm), height of lowest pod bearing branch (30.0 cm), lower days to 50 % flowering (42.1 days) and higher test weight (31.2 g) were observed in Dheera. Higher number of branches per plant (9.2) and number of pods per plant (34.2) were observed in GBM 2. Higher seed yield was observed in Phule G 08108 (1708 kg ha-1) which is followed by GBM 2 (1675 kg ha-1) Dheera (1569 kg ha-1) and BRC 1 (1493 kg ha-1). Higher harvest index (56.4%) was also observed in Phule G 08108. Chickpea varieties GBM2, Dheera and BRC1 were best suitable for mechanical harvesting and higher seed yield due to their excellent morphology.
在安得拉邦南达尔地区农业研究站,通过连续3年(2016__17 ~ 2018__19)旱作条件下的旱作土壤试验,评价了适合机械收获的鹰嘴豆品种的生长和产量特性。调查采用3个重复的分区设计。2个植物几何形状(30.0 × 10.0 cm和22.5 × 10.0 cm)划分为主区,6个鹰嘴豆品种(gbm2、Dheera、CSJ 515、HC 5、Phule G 08108和BRC 1)划分为副区。综合分析结果表明,在30.0 × 10.0 cm下,单株分枝数(8.7)、荚果数(31.1)和试验重(24.3 g)显著高于22.5 × 10.0 cm。其株高(44.8 cm)、最低结荚枝高(30.0 cm)、开花时间低于50% (42.1 d)、试验重(31.2 g)较高。gbm2的单株分枝数(9.2)和荚果数(34.2)较高。Phule G 08108籽粒产量最高(1708 kg ha-1),其次是gbm2 (1675 kg ha-1)、Dheera (1569 kg ha-1)和BRC 1 (1493 kg ha-1)。Phule G 08108收获指数较高(56.4%)。鹰嘴豆品种GBM2、Dheera和BRC1形态优良,最适合机械收获,产量较高。
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引用次数: 2
Estimating soil nutrient index vis-a-vis mango orchard productivity of Lucknow region, Uttar Pradesh, India 印度北方邦勒克瑙地区与芒果果园生产力相关的土壤养分指数估算
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.077
T. Adak, G. Pandey
Soil nutrient index was developed in mango orchard soils for which a sum of 88 soil samples were recently collected from the root zone depth (0–30 cm) of 22 fixed mango orchards of Lucknow region of Uttar Pradesh, India. Analysis of data indicated orchards had wider contents in nutrients in soil and foliar parts. Developed soil nutrient index concluded that mango orchard soils were categorized as low SOC, N and K, whereas P designated in medium rating. In case of available micronutrients, Zn, Fe and Mn falls under medium rating while Cu in low rating. Productivity analysis showed 4.92 to 8.68 t ha-1 with majority of the orchards had production from 6 to ≤8.0 t ha-1. Such lower productivity is linked to low to medium soil nutrients. The study showed for ensuring better productivity, proper nutrition management systems should be adopted by the growers.
在印度北方邦勒克瑙地区22个固定芒果果园的根区深度(0-30 cm)收集了88个土壤样品,建立了芒果果园土壤养分指数。数据分析表明,果园土壤和叶部的养分含量更广。开发的土壤养分指数表明,芒果园土壤属于低有机碳、低氮、低钾,磷属于中等。在速效微量元素方面,锌、铁、锰处于中等等级,铜处于低等级。产量分析结果为4.92 ~ 8.68 t ha-1,大部分果园产量在6 ~≤8.0 t ha-1之间。这种较低的生产力与低至中等的土壤养分有关。研究表明,为了确保更好的生产力,种植者应该采用适当的营养管理系统。
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引用次数: 0
Effects of pre-sowing treatments on germination of Jatropha curcas L. seeds 播前处理对麻疯树种子萌发的影响
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.081
Onyekachi Chukwu, A. A. Adeagbo, C. L. Umeh, B. C. Ojomah, Ogheneochuko Ohwokevwo
Successful production of healthy seedlings in a forest nursery can be ensured through seed treatment to enhance germination. This study assessed the effects of pre-sowing treatments on the germination of Jatropha curcas; to provide the best treatment for enhancing seedling production. The experiment was laid in a completely randomized design with four treatments: (i) control (T1), (ii) soaking in; water at room temperature at room temperature for 16 hours (iii) cow-dung slurry for 16 hours (iv) 98% concentrated sulphuric acid for 5 minutes Each treatment received 10 seeds and was replicated 5 times giving a total of 200 seeds sown in sterilized river bank sand. Germinated seeds were counted, converted to percentages and arsine values. The data were further subjected to analysis of variance and significant means were separated using Duncan multiple range test (DMRT) at 0.05 level of significance. The results showed that seeds with no pre-sowing treatment had the highest mean germination (66%), DMRT revealed that significant difference (P<0.05) existed between seeds with no pre-sowing treatment and other treatments. The study concluded that viable Jatropha curcas seeds have no germination problem; the seeds could be germinated without pre-sowing treatment.
在森林苗圃中,通过种子处理促进发芽,可以确保健康幼苗的成功生产。研究了播前处理对麻疯树种子萌发的影响;为提高苗木产量提供最佳处理方法。试验采用完全随机设计,共设4个处理:(i)对照(T1), (ii)浸泡;室温水室温发酵16小时(iii)牛粪浆发酵16小时(iv) 98%浓硫酸发酵5分钟每个处理10粒种子,重复5次,共200粒种子播种在消毒过的河沙上。计数发芽种子,转换成百分比和砷值。进一步进行方差分析,采用Duncan多元极差检验(DMRT)在0.05显著水平上分离显著性均数。结果表明,未播前处理种子的平均发芽率最高(66%),DMRT显示未播前处理与其他处理之间存在显著差异(P<0.05)。研究结果表明,麻疯树种子不存在萌发问题;播前处理可使种子萌发。
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引用次数: 0
Application of diameter distribution model for volume estimation in Tectona grandis L.f. stands in the Oluwa forest reserve, Nigeria 直径分布模型在尼日利亚Oluwa森林保护区大构造林体积估算中的应用
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.070
I. Y. Egonmwan, F. N. Ogana
The ability to predict the distribution of diameters in a stand is essential for forest managers to make informed management decisions such as prescription of silvicultural treatments and harvesting regimes. Such information is preferably derived from suitable distribution model. This study evaluated the performance of four distribution models in describing the structure of the teak stands in Oluwa Forest Reserve, Nigeria. Data were collected from 12 temporary sample plots of 20 × 20 m size in the teak stand. Maximum likelihood estimator was used to fit the distribution models: beta, gamma, Johnson SB, and Weibull to the diameter data from the teak stand. Relative rank-sum derived from four indices was used to conclude on the most suitable distribution for the stand. The results showed that the Weibull distribution was the most suitable function for the teak stand with a relative rank-sum of 4.0. Application of Weibull distribution together with suitable height-diameter and volume models estimated yield of 136.281 m ha within timber size class (diameter ≥30 cm). And a total of 309.640 m ha was estimated for the stand. Other product specifications were also provided. This would help in the routine management of the stand.
预测林分直径分布的能力对于森林管理者作出明智的管理决策(如造林处理和采伐制度的处方)至关重要。这种信息最好是从合适的分布模型中得到的。本研究评估了四种分布模型在描述尼日利亚奥卢瓦森林保护区柚木林分结构方面的表现。数据采集于柚木林内12块面积为20 × 20 m的临时样地。使用极大似然估计器拟合分布模型:beta、gamma、Johnson SB和Weibull与柚木林直径数据的拟合。利用四项指标的相对秩和,得出了林分最适宜的分布。结果表明,威布尔分布最适合柚木林分,其相对秩和为4.0。应用威布尔分布和合适的高径和体积模型,估算了木材粒径级(直径≥30 cm)的产量为136.281 m ha。估算林分面积为3096.4 m ha。还提供了其他产品规格。这将有助于看台的日常管理。
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引用次数: 3
Some noteworthy plants record to the flora of Yavatmal district, Maharashtra, India 一些值得注意的植物记录了印度马哈拉施特拉邦Yavatmal地区的植物群
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.074
M. Kakpure
The present paper deals with the addition of 05 new plant species i.e. Tephrosia pumila, Striga asiatica, Tecomella undulata, Orobanche cernua and Sauromatum venosum belonging to 05 different families; from this 01 additional family i.e. Orobanchaceae is reported for the first time to the flora of Yavatmal district. This study provides the correct and updated detail information about morphology, phenology and occurrence of these new additional plant species for the future work.
本文报道了新收录的05个植物种,即毛茛、亚洲刺甲、波状蕨、cerbanch cernua和Sauromatum venosum,分属05个科;在Yavatmal地区的植物区系中首次报道了这一新科(Orobanchaceae)。本研究为今后的工作提供了这些新植物的形态、物候和发生的正确和最新的详细信息。
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引用次数: 1
Calvatia craniiformis (Schwein.) Fr. ex De Toni (Brain puffball) - New report from North-East India 颅裂(瑞士)frex De Toni(脑泡球)-来自印度东北部的新报告
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.082
G. Gogoi, Rajesh Kumar
The specimen was collected during the rainy season in June, 2018 from Botanical garden Rain Forest Research Institute, Jorhat. Morphological characters of the specimen were recorded in the field and micromorphological characters were studied in the laboratory under the optical microscope. After a thorough examination of the specimen and its spores and capillitial threads, it is confirmed that the specimen is wild edible puffball named Calvatia craniiformis belongs to family Agaricaceae. It is also ensured after consultation with available literature that Calvatia craniiformis is the first report in North-East India.
该标本于2018年6月雨季期间从Jorhat植物园雨林研究所收集。野外记录标本形态特征,室内光学显微镜下观察标本微形态特征。在对标本及其孢子和丝线进行彻底检查后,确认该标本为野生可食用海球,名为Calvatia craniiformis,属于木耳科。在查阅现有文献后,也可以确定颅裂是印度东北部的第一份报告。
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引用次数: 0
Ensuring the effects of climate warming; the sensitivity of controlling factors on soil respiration in Sub-Tropical grassland 确保气候变暖的影响;控制因子对亚热带草地土壤呼吸的敏感性
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.065
Deepa Dhital, S. Prajapati, S. R. Maharjan, T. Ohtsuka, Sanima Hydro
Prevailing climate change is expected due to carbon dioxide emission to the atmosphere through soil respiration and perhaps the alteration in the terrestrial carbon cycle. The measurements to establish the effect and sensitivity of soil temperature, soil water content and plant biomass on soil respiration was performed in the sub-tropical grassland located in Central Nepal. Field measurements of soil respiration was conducted by using the closed-chamber method, and soil temperature, soil water content and plant biomass were monitored in the years 2015 and 2016. The soil respiration showed positive significant exponential function which accounted for 74.6% (R2=0.746, p<0.05) of its variation with the soil temperature. The temperature sensitivity of soil respiration, Q10 value obtained was 2.68. Similarly, soil respiration showed a positive significant exponential function that accounted for 37.2% (R2=0.372, p<0.05) of its variation with the soil water content. Remarkable seasonal and monthly variations were observed in soil respiration, soil temperature and soil water content, and the plant biomass as well followed the seasonal trend in variation of the soil respiration. Average soil respiration during measurements period was observed 325.51 mg CO2 m-2 h-1 and the annual soil respiration of the grassland in the years 2015 and 2016 was estimated 592.35 g C m-2 y-1. The study confirmed that soil temperature is the most influential primary factor in controlling soil respiration along with the soil water content and plant biomass. This research indicates that through emissions under the increasing temperature and precipitation, in the changing climate, the sub-tropical grassland could be an additional source of carbon dioxide to the atmosphere that might spur risk for further warming.
预计主要的气候变化是由于二氧化碳通过土壤呼吸排放到大气中,或许还有陆地碳循环的改变。在尼泊尔中部的亚热带草原上进行了土壤温度、土壤含水量和植物生物量对土壤呼吸的影响和敏感性的测量。2015年和2016年采用密闭室法进行了土壤呼吸实测,并对土壤温度、土壤含水量和植物生物量进行了监测。土壤呼吸随土壤温度的变化呈显著的正指数函数,占74.6% (R2=0.746, p<0.05)。土壤呼吸的温度敏感性Q10值为2.68。土壤呼吸随土壤含水量的变化呈显著的正指数函数关系(R2=0.372, p<0.05)。土壤呼吸、土壤温度和土壤含水量的季节和月变化显著,植物生物量的变化也符合土壤呼吸的季节变化趋势。观测期土壤呼吸平均值为325.51 mg CO2 m-2 h-1, 2015年和2016年草地年土壤呼吸值为592.35 g C m-2 y-1。研究证实,土壤温度、土壤含水量和植物生物量是控制土壤呼吸的最主要因素。这项研究表明,在气温和降水增加的情况下,在气候变化的情况下,亚热带草原可能成为大气中二氧化碳的额外来源,可能会刺激进一步变暖的风险。
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引用次数: 2
DNA fingerprinting of foxtail millet (Setaria italica L.) variety ATL 1 using SSR and RAPD markers along with morphological descriptors 利用SSR和RAPD标记及形态描述子对谷子ATL 1的DNA指纹图谱进行分析
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.072
Senthilkumar A. Natesan, G. Murugesan, N. Murugan, Sarankumar Chandran, Nirmalakumari Angamuthu
Foxtail millet (Setaria italica) is a cultivated nutritional cereal, which originated in South Asia and is considered one of the oldest cultivated millets in India. DNA fingerprinting is mandatory for registration of newly developed varieties with National Bureau of Plant Genetic Resources (NBPGR) and Protection of Plant Varieties and Farmers' Rights Authority (PPV&FRA). Due to the limited availability of genomic information in foxtail millet, the use of DNA based markers in fingerprinting of crop varieties is also limited. Hence in the present investigation, available RAPD and SSR markers of cereals are used for fingerprinting the foxtail millet varieties. The newly released variety ATL 1 is differentiated from popular variety CO (Te) 7 using SSR and RAPD markers. About 66 maize SSR primers, 16 sorghum SSR primers, and 10 RAPD primers were used in the study. Out of 66 maize SSR markers used for study, one showed polymorphism. The marker umc1704 showed polymorphism between CO (Te) 7 and ATL 1 by the presence of 670 bp allele CO (Te) 7. The RAPD primers OPB4, OPA5, OPA11 and OPB1 also helped for differentiation of the two varieties. The identified makers will help for genetic purity testing of CO (Te) 7 and ATL 1 in the seed chain.
谷子(Setaria italica)是一种种植的营养谷物,起源于南亚,被认为是印度最古老的种植谷子之一。在国家植物遗传资源局(NBPGR)和植物品种保护和农民权利局(PPV&FRA)注册新开发品种时,DNA指纹识别是强制性的。由于谷子基因组信息的可用性有限,基于DNA的标记在作物品种指纹鉴定中的应用也受到限制。因此,本研究利用现有的谷物RAPD和SSR标记对谷子品种进行指纹鉴定。利用SSR和RAPD标记对新发布的品种ATL 1与流行品种CO (Te) 7进行了区分。共使用玉米SSR引物66条,高粱SSR引物16条,RAPD引物10条。66个玉米SSR标记中有1个存在多态性。标记umc1704存在670 bp的CO (Te) 7等位基因,显示CO (Te) 7与ATL 1之间存在多态性。RAPD引物OPB4、OPA5、OPA11和OPB1也有助于两个品种的分化。确定的制造商将有助于种子链中CO (Te) 7和ATL 1的遗传纯度测试。
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引用次数: 2
Eight families of Bryophytes as new distributional records for Andhra Pradesh, India 标题印度安得拉邦苔藓植物八科分布新记录
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.069
A. Sreenath, P. Anjaneyulu, S. Nagesh, M. A. Kumar, B. Rao
Eight families (two liverworts; six mosses) of Bryophytes, with ten representative species viz., Liverworts- Cephaloziellaceae (Cephaloziella kiaeri, Cylindrocolea tagawae), Porellaceae (Porella acutifolia); Mosses- Erpodiaceae (Solmsiella biseriata), Hylocomiaceae (Leptohymenium tenue), Myuriaceae (Myurium perplexum), Pterigynandraceae (Pterigynandrum filiforme), Sematophyllaceae (Sematophyllum humile and Sematophyllum subhumile), and Trachypodaceae (Bryowijkia ambigua) are new distributional records for the state of Andhra Pradesh, India.
八个科(两个苔类;苔藓植物的6种),有10个代表种,即:肝苔科(cephalaloziella kiaeri, cydrocolea tagawae), porellacae (Porella acutifolia);藓科(Solmsiella biseriata)、水螅科(Leptohymenium tenue)、水螅科(Myurium perplexum)、翼藓科(Pterigynandrum filiformme)、半藓科(Sematophyllum humile和Sematophyllum subhumile)和翼藓科(Bryowijkia ambigua)是印度安得拉邦的新分布记录。
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引用次数: 1
A new record and an updated key of lichen genus Dibaeis (Icmadophilaceae, Ascomycota) from India 标题印度地衣属Dibaeis新记录及更新的检索键
Pub Date : 2020-12-31 DOI: 10.22271/TPR.2020.V7.I3.087
S. Yadav, Aizawl Mizoram India Rattan
The lichen genus Dibaeis is currently represented in India by two species, viz., Dibaeis baeomyces and Dibaeis pulogensis reported from the states of Meghalaya, Sikkim and Western Bengal. The present study describes the occurrence of a new record Dibaeis absoluta from the Eastern Himalayan hill tracts of Mizoram, North-East India which is situated in the Indo-Burma biodiversity hotspot. The addition of present new record of Dibaeis species further increased the number to three in India. A revised key is also provided.
Dibaeis地衣属目前在印度有两个物种,即Dibaeis baeomyces和Dibaeis pullogensis,据报道来自梅加拉亚邦、锡金邦和西孟加拉邦。本研究描述了位于印度-缅甸生物多样性热点地区的印度东北部米佐拉姆邦喜马拉雅山脉东部地区的一种新记录Dibaeis absoluta的出现。目前新记录的Dibaeis物种的增加使印度的Dibaeis物种数量进一步增加到三种。还提供了修改后的键。
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引用次数: 1
期刊
Tropical Plant Research
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