scholarly journals Determinate pigeon pea [Cajanus cajan (L) Millsp] genotypes on the north and south coasts of Puerto Rico

1969 ◽  
Vol 72 (4) ◽  
pp. 545-556
Author(s):  
Abad Morales ◽  
Brunilda Luciano ◽  
Francisco H. Ortiz ◽  
Nabor Mendoza
Keyword(s):  
Cajanus Cajan ◽  
Seed Weight ◽  
Pigeon Pea ◽  
Date Seed ◽  
The North ◽  
Agricultural Experiment ◽  
Almost All ◽  
North And South ◽  
Number Of Seeds ◽  
Better Than

Seven experiments were established at the Juana Díaz and Isabela agricultural experiment substations to evaluate the performance of determinate pigeon pea [Cajanus cajan (L.) Millsp] genotypes. Significant differences were found for yield, height, flowering date, seed weight and number of seeds per pod in almost all the experiments. Many genotypes performed better than the commercial cultivar 2B-Bushy used as check.

scholarly journals Effect of Mechanical, Cultural and Chemical Weed Control on Yield and Yield Components of Pigeonpeas, Cajanus cajan (L.) Millsp.

1969 ◽  
Vol 58 (4) ◽  
pp. 466-472
Author(s):  
R. Abrams ◽  
F. J. Juliá
Keyword(s):  
Plant Height ◽  
Weed Control ◽  
Yield Components ◽  
Cajanus Cajan ◽  
Seed Weight ◽  
Yield Increase ◽  
Pod Yield ◽  
Yield And Yield Components ◽  
Agricultural Experiment ◽  
Number Of Seeds

Four determinate and four indeterminate types of pigeonpea cultivars and experimental lines were grown at the Isabela Agricultural Experiment Substation during 1971-72 to determine the effects of mechanical, cultural and chemical weed control practices on six characters affecting pigeonpea yield. The chemical, mechanical and hand weed control treatments increased the green pod yield and the number of pods per plant, but had no effect on plant height, number of days to flower, seed weight, and number of seeds per pod. Greatest yield increase was obtained by weed control with chemicals.

scholarly journals Social Condition of England during the Wars of the Roses

1902 ◽  
Vol 16 ◽  
pp. 159-200
Author(s):  
Vincent B. Redstone
Keyword(s):  
Social Life ◽  
English History ◽  
Class A ◽  
The North ◽  
The Arts ◽  
The Social ◽  
Wars Of The Roses ◽  
Social Habits ◽  
North And South ◽  
Better Than

The social life of the inhabitants of England during the years of strife which brought about the destruction of the feudal nobility, gave to the middle class a new position in the State, and freed the serf from the shackles of bondage, has been for some time past a subject of peculiar interest to the student of English history. If we desire to gain an accurate knowledge of the social habits and customs prevalent during this period of political disturbance, we cannot do better than direct our attention towards that part of the country which was the least affected by the contest between the Houses of York and Lancaster, the eastern district of England, which since the days of King John had enjoyed a remarkable immunity from civil war. Here the powerful lords of the North and South found little support; the vast estates of the old feudal barons were broken up into numerous independent manors. Moreover the arts of peace, in the shape of the mysteries of trade, manufactures, and commerce, widely flourished among the inhabitants of these regions.

Assessment of the effect of ratooning pigeon pea (Cajanus cajan (L.) Millsp.) in the lowland tropics

1985 ◽  
Vol 104 (3) ◽  
pp. 589-593 ◽  
Author(s):  
T. O. Tayo
Keyword(s):  
Seed Yield ◽  
Cajanus Cajan ◽  
Pigeon Pea ◽  
Growth And Yield ◽  
Tropical Conditions ◽  
Total Seed ◽  
The University ◽  
University Of Ibadan ◽  
Better Than

SummaryPigeon pea (variety Cita-1) was sown on ridges at two plantings in the early and late seasons of 1983 at the University of Ibadan, Two to three weeks after the plants reached maturity and the pods had been harvested by hand-picking, the plants were either ratooned by cutting off the tops at a height of 30 and 60 cm or left intact.At the end of the first and second regrowths, the plants ratooned at 30 and 60 cm had performed better than those left intact in terms of growth and yield characters as well as seed yield. However, the plants ratooned at 30 cm performed best followed by those ratooned at 60 cm. The total seed yield from the planting was 3–6 times higher than if the crop had been harvested once.It would seem that ratooning at 30 cm would give the highest returns from a single planting under the prevailing lowland tropical conditions.

Effects of Defoliation on Pigeon Peas (Cajanus Cajan)

1975 ◽  
Vol 11 (3) ◽  
pp. 177-182 ◽  
Author(s):  
John L. Hammerton
Keyword(s):  
Cajanus Cajan ◽  
Pigeon Pea ◽  
Number Of Seeds

SUMMARYMild manual defoliation of pigeon pea plants had little effect on pod numbers, pod weights, or number of seeds per pod in two experiments. The effects of severe defoliation depended on timing and differed between pigeon pea cultivars. Late severe defoliation reduced pod numbers in both experiments, but early and intermediate severe defoliation also differed in their effects. Some physiological implications of these results are suggested.

scholarly journals Agrometeorological Indices, Crop Phenology and Yield of Pigeon pea as Influenced by Pigeon pea (Cajanus cajan L.) based Intercropping System

2021 ◽  
Vol 10 (11) ◽  
pp. 387-396
Author(s):  
S. N. Chatte M. G. Jadhav ◽  
D. S. Dhekane I. A. B. Mirza ◽  
K. K. Dakhore S. S. More
Keyword(s):  
Cajanus Cajan ◽  
Pigeon Pea ◽  
Field Investigation ◽  
Growth And Yield ◽  
College Of Agriculture ◽  
Crop Phenology ◽  
Stover Yield ◽  
Equivalent Yield ◽  
Better Than ◽  
Agricultural Meteorology

A field investigation was conducted at experimental farm, Department of Agricultural Meteorology, located at college of Agriculture, V.N.M.K.V, Parbhani during kharif season of 2019-20. The experiment was laid out in RBD with three replication, under this study there were nine treatments viz. T1 (Pigeon pea + Sorghum), T2 (Pigeon pea + Maize), T3 (Pigeon pea + Soybean), T4 (Pigeon pea + Sesamum), T5 (Pigeon pea), T6 (Sorghum), T7 (Maize), T8 (Soybean), T9 (Sesamum). In pigeon pea the highest total agrometeorological indices (GDD, HTU and PTU) accumulated by intercropped treatment T1 as compared to sole, by sorghum, maize and sesamum was highest in intercropped treatment i.e. (T1), (T2) and (T4) than in sole whereas, the accumulated agrometeorological indices by soybean was highest in sole treatment i.e. (T8) than intercropped (T3). Significantly higher Pigeon pea equivalent yield was attained with treatment T3 followed by T4, lowest recorded in T1 intercropping system. The highest stalk / stover yield was attained by T2 as compared to sole whereas, lowest was recorded in T8. Treatment T3 performed better than other and this treatment was better in terms of growth and yield attributing characters.

scholarly journals The Flare and Warp of the Young Stellar Disk Traced with LAMOST DR5 OB-type Stars

2021 ◽  
Vol 922 (1) ◽  
pp. 80
Author(s):  
Yang Yu ◽  
Hai-Feng Wang ◽  
Wen-Yuan Cui ◽  
Lin-Lin Li ◽  
Chao Liu ◽  
...  
Keyword(s):  
Galactic Plane ◽  
Scale Height ◽  
Stellar Disk ◽  
Spatial Density ◽  
Galactocentric Distance ◽  
Secular Evolution ◽  
The North ◽  
Red Giant ◽  
Almost All ◽  
North And South

Abstract We present an analysis of the spatial density structure for the outer disk from 8–14 kpc with the LAMOST DR5 13,534 OB-type stars and observe similar flaring on the north and south sides of the disk, implying that the flaring structure is symmetrical about the Galactic plane, for which the scale height at different Galactocentric distances is from 0.14 to 0.5 kpc. By using the average slope to characterize the flaring strength, we find that the thickness of the OB stellar disk is similar but that flaring is slightly stronger compared to the thin disk as traced by red giant branch stars, possibly implying that secular evolution is not the main contributor to the flaring but rather perturbation scenarios such as interactions with passing dwarf galaxies could be possible. When comparing the scale height of the OB stellar disk on the north and south sides with the gas disk, the former one is slightly thicker than the latter one by ≈33 and 9 pc, meaning that one could tentatively use young OB-type stars to trace the gas properties. Meanwhile, we determine that the radial scale length of the young OB stellar disk is 1.17 ± 0.05 kpc, which is shorter than that of the gas disk, confirming that the gas disk is more extended than the stellar disk. What is more, by considering the midplane displacements (Z 0) in our density model we find that almost all values of Z 0 are within 100 pc, with an increasing trend as Galactocentric distance increases.

Potential Distribution of Fall Armyworm in Africa and Beyond, Considering Climate Change and Irrigation Patterns

2021 ◽  
Author(s):  
Bipana Paudel Timilsena ◽  
Saliou Niassy ◽  
Emily Kimathi ◽  
Elfatih. M. Abdel-Rahman ◽  
Irmgard Seidl-Adams ◽  
...  
Keyword(s):  
Central Africa ◽  
Fall Armyworm ◽  
Large Area ◽  
Western Africa ◽  
The North ◽  
Management Interventions ◽  
Population Establishment ◽  
Almost All ◽  
North And South ◽  
Irrigation Patterns

Abstract The fall armyworm, Spodoptera frugiperda (FAW), first invaded Africa in 2016 and has since become established in many areas across the continent where it poses a serious threat to food and nutrition security. We re-parameterized the existing CLIMEX model to assess the FAW global invasion threat, emphasizing the risk of transient and permanent population establishment in Africa under current and predicted future climates, considering irrigation patterns. FAW can establish itself in almost all countries in eastern and central Africa and a large part of western Africa under the current climate. Climatic barriers, such as heat and dry stresses, may limit the spread of FAW to North and South Africa. Future predictions suggest that FAW invasive range will retract from both northern and southern regions towards the equator. However, a large area in eastern and central Africa is predicted to have an optimal climate for FAW persistence. These areas will serve as FAW ‘hotspots’ from where it may migrate to the north and south during winter seasons and then pose an economic threat. Our projections can be used to identify countries at risk for permanent and transient FAW-population establishment and inform timely integrated pest management interventions under present and future climate in Africa.

Standardization of fertigation technology for transplanted pigeonpea [Cajanus cajan (L.) Millsp.]

2018 ◽  
Author(s):  
H. Vanishree ◽  
N. Anand ◽  
B.M. Chittapur ◽  
M.R. Umesh ◽  
S.N. Bhat
Keyword(s):  
Cajanus Cajan ◽  
Seed Weight ◽  
Water Soluble ◽  
Yield Attributes ◽  
Net Returns ◽  
The North ◽  
Agricultural College ◽  
Dry Zone ◽  
Seed Yields ◽  
Drip Fertigation

A field experiment was conducted during kharif, 2015-16 at Agricultural College Farm, Raichur to ‘standardize fertigation technology for higher productivity of transplanted pigeonpea [Cajanus cajan (L.) Millsp.] on vertisols’ in the north-eastern dry zone of Karnataka. The results revealed higher number of pods (693.31) seed weight (12.16 g plant-1) stalk (5301 kg ha-1) and seed yields (3340 kg ha-1) with drip fertigation of recommended N and P2O5 (25:50 kg ha-1) in five splits using water soluble fertilizers (WSF) compared to other drip fertigation of water soluble and normal fertilizers at different levels of splits. Whereas significantly lower number of pods, seed weight and yield attributes were recorded with normal practice of soil application of commercial fertilizers without irrigation. Application of water soluable fertilizer (WSF) at 100 per cent RDF in 5 splits through drip method of irrigation also recorded higher gross returns (Rs.1,83,700 ha-1), net returns (Rs. 1,41,983 ha-1) and BC ratio (4.40) compared to all other treatments.

scholarly journals PENAMPILAN VEGETATIF DAN GENERATIF 10 GENOTIF GANDUM (Triticum aestivum L.) DENGAN VARIETAS KONTROL GURI-3 DI DATARAN MENENGAH, KELURAHAN BLOTONGAN, KECAMATAN SIDOREJO, KOTA SALATIGA, PROVINSI JAWA TENGAH

2019 ◽  
Vol 20 (2) ◽  
pp. 31
Author(s):  
Pedro Jacob Bosco Amaral ◽  
Djoko Murdono
Keyword(s):  
Triticum Aestivum ◽  
Sea Level ◽  
Soil Ph ◽  
Seed Weight ◽  
High Stress ◽  
Triticum Aestivum L ◽  
Spikelet Number ◽  
Number Of Leaves ◽  
Number Of Seeds ◽  
Better Than

Research on vegetative and generative appearance of 10 wheat (Triticum aestivum L.) genotives was conducted in June 2017 until September 2017 in Blotongan Area, District Sidorejo, Salatiga which has a height of ± 698 m above sea level. The purpose of this study was to determine and obtain the appearance of vegetative and generative 10 genotypes of wheat that grow well in the plains medium. This research is using the RAK and analysis of variance with test HSD 5%. The treatments were 10 genotypes, namely: FUNDACEP 30, Filin / 2 * 1PASTAR 11 QUAIU, WBLL * 2KURUKU, PRL / 2 * PASTOR, Pfau / MILAN / 3 / SKAUZ / KS9, KIRITATI / 4/2 / * SERI.1B * 2, TRCH * 2/3 /C80.I/3, SAAR / 2 / * WAXWING, GURI 3. The treatment is repeated 3 times. The results showed that there is a difference in the appearance of vegetative between genotives tested in terms of plant height and number of leaves. While the number of tillers, flowering age, and harvest age is no different. On the appearance of the generative found no difference between genotives in terms of the number of seeds per panicle, seed weight per m2, the middle row 4th seed weight, seed weight per panicle, and the weight of 1000 seeds. While the length of spikelet number of panicle and seed weight of 1 liter is not unlike real; Genotif that has levels of appearance of vegetative and generative in the Middle Plains is PRL/2 * PASTOR and TRCH * 2/3/C80. I/3 relatively better than the varieties of Guri-3 as control varieties; Factors temperature, drought, soil pH, and soil texture when testing are causing high stress, so that the appearance of Guri-3 as control varieties haven't been able to emulate the appearance according to the description of the varieties of Guri-3.

scholarly journals Morphology of various strains of the trypanosome causing disease in man in Nyasaland.—The mzimba strain

1913 ◽  
Vol 87 (592) ◽  
pp. 26-35 ◽  
Keyword(s):  
Central Africa ◽  
Medical Officer ◽  
Sleeping Sickness ◽  
Separate Species ◽  
North East ◽  
The North ◽  
Western Shore ◽  
Trade Route ◽  
Almost All ◽  
North And South

Up to the present time it has usually been considered that almost all the cases of Human trypanosome disease in man in Nyasaland have been confined to a small area. This, the so-called Sleeping-Sickness District, has been described in a former paper, but it may be repeated here that it is the part of the “fly-country” lying along the western shore of Lake Nyasa, between S. lat. 13° 20' and 13° 50', and extending some twenty miles inland. Through the centre of this area a road runs from Domira Bay on the Lake into North-East Rhodesia. This road, until lately, was a principal highway between the coast and Central Africa. Dr. Aylmer May, the Principal Medical Officer of North-East Rhodesia, who lately visited Kasu, informed the Commission that it was along this trade-route that all the North-East Rhodesian, cases of Human trypanosome disease have occurred. It is said that some 25,000 native porters passed along this road every year, and as they entered a Glossina palpalis area at the Congo end of their journey, it seemed at first natural to suspect that the disease was true Sleeping Sickness, and had spread from west to east along this trade-route. This suspicion was shown to be groundless by the discovery that the parasite causing the disease in North-East Rhodesia and Nyasaland is not Trypanosoma gambiense , but a distinct and separate species giving rise to a totally different disease. The question then arose as to whether this was an imported or indigenous disease. It has, therefore, been one of the objects of this Commission to determine whether the trypanosome causing Human trypanosome disease in Nyasaland is restricted to the game and “fly” of the Proclaimed Area, or if it extends to the north and south along the “fly-belt.” If it is found to extend over all the “fly-area” in Nyasaland, then the disease is probably native to the soil and not an importation from Tanganyika or the Congo. But it will be well at this point to lay down definitely the various opinions or theories at issue. These are three in number.

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