scholarly journals Cowpea Yield Performance in an Alley Cropping Practice on an Acid Infertile Soil at Ebini, Guyana

2010 ◽  
Vol 4 (1) ◽  
pp. 80-84 ◽  
Author(s):  
Patrick E.K. Chesney ◽  
Leslie A. Simpson ◽  
R. Nigel Cumberbatch ◽  
Oudho Homenauth ◽  
Floyd Benjamin
Keyword(s):  
Plant Height ◽  
Rainy Season ◽  
Fossil Fuel ◽  
Alley Cropping ◽  
Gliricidia Sepium ◽  
Grain Weight ◽  
Higher Plant ◽  
Yield Performance ◽  
Short Rainy Season ◽  
Cowpea Plant

The yield performance of cowpea var. Minica # 4 (Vigna unguiculata L.) on an Arenic Paleudult (Acrisol) was evaluated in an alley cropping experiment with Gliricidia sepium (Jacq.) Kunth ex Walp., Leucaena leucocephala (Lam.) de Wit and a treeless control during a short- (November-December 2004), and long-(May-June 2005) rainy season at Ebini, Guyana. The alley cropping treatments had no significant effect on cowpea plant height, pods per plant, pod weight per plant and grain weight. During the short-rainy season, values for cowpea plant height and number of pods per plant were higher compared to those for the long-rainy season, and number of pods per plant was positively correlated with pod weight. During the long-rainy season, pod weight and grain weight were correspondingly higher. Plant height vs. number of pods per plant; number of pods per plant vs. pod weight; and, number of pods per plant vs. grain weight, were all positively correlated. Cowpea could yield the same or more when associated with managed fast growing, nitrogen (N)-fixing trees or treeless plots. This alley cropping practice has the potential to reduce the use of fossil-fuel generated fertilizers and reduce the potential production of an important greenhouse gas (GHG).

scholarly journals GROWTH OF ARBOREAL LEGUMINOUS PLANTS AND MAIZE YIELD IN AGROFORESTRY SYSTEMS

2016 ◽  
Vol 40 (4) ◽  
pp. 679-688 ◽  
Author(s):  
Vianney Reinaldo de Oliveira ◽  
Paulo Sérgio Lima e Silva ◽  
Haroldo Nogueira de Paiva ◽  
Frederico Silva Thé Pontes ◽  
Rafaela Priscila Antonio
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Alley Cropping ◽  
Cropping System ◽  
Maize Yield ◽  
Gliricidia Sepium ◽  
Agroforestry Systems ◽  
Net Income ◽  
The Cost ◽  
Lower Plant

ABSTRACT Forest plantation costs can be reduced by the income from annual crops that are intercropped with trees. An experiment was carried out over two years to assess the viability of agroforestry systems including sabiá (Mimosa caesalpiniifolia), gliricidia (Gliricidia sepium) and maize (cultivar AG 1051). In 2010, the legumes were grown both as monocrops and intercropped (taungya system) with maize in randomized blocks with five replications. Three rows of maize were planted between two rows of each legume (at a spacing of 4.0 m x 4.0 m). In 2011, the legumes were cut down, and the young branches and leaves were added to the areas of intercropped cultivation (alley cropping system). Gliricidia had lower plant height than sabiá. Moreover, while not affecting for gliricidia, intercropping increased plant height for sabiá. Intercropping reduced green ear yield but not grain yield and reduced the cost of introducing reforestation. Intercropping using the alley system reduced the total number and mass of green ears, as well as grain yield, but did not influence the yield of marketable green ears. Finally, producing green ears was more profitable than producing grain and maize monocropping provided a higher net income than intercropping.

scholarly journals Effect of Transplanting Date on Growth and Yield of Advanced Lines of Transplanted Aman Rice

2020 ◽  
Vol 7 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Amena Sultana ◽  
Nilufar Yasmin Shaikh ◽  
Mst Selima Zahan ◽  
Md Adil Badshah ◽  
Romana Akter ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Grain Weight ◽  
Growth And Yield ◽  
Growth Duration ◽  
Higher Plant ◽  
Advanced Line ◽  
Check Variety ◽  
1000 Grain Weight

This research was conducted in order to investigate the effects of time of planting on the grain yield and yield components of three advanced lines of rice under the Agro Ecological Zone (AEZ), Modhupur Tract. The research was conducted as a split plot using Randomized Complete Block Design (RCBD) with three replications in the Aman season of 2016 under the research field of Bangladesh Rice Research Institute (BRRI), Gazipur. In this research, the dates 01 August, 16 August, 31 August and 16 September were considered as the main factor in the main plots, and the advanced lines/varieties BR(Bio)9786-BC2-119-1-1, BR(Bio)9786- BC2-132-1-3 and BRRI dhan49 (check variety) were regarded as the secondary factors in the sub plots. The results showed that planting time significantly affected the plant height, the number of panicle per meter square, the number of tillers per meter square, the number of grains per panicle, 1000-grain weight and grain yield. Among the cultivars, the advanced line BR(Bio)9786-BC2-119-1-1 and BR(Bio)9786-BC2-132-1-3 produced significantly higher plant height, the number of panicle, the number of tillers, the number of grains per panicle, 1000- grain weight and grain yield than check variety BRRI dhan49 in all transplanting dates. The advanced line BR(Bio)9786-BC2-119-1-1 and BR(Bio)9786-BC2-132-1-3 produced average 1.02 and 0.57 t ha-1 higher yields respectively over the check variety BRRI dhan49 under the transplanting date 01 August to 31 August. The highest growth duration (130-146 days) was observed for the check variety BRRI dhan49 that followed by BR(Bio)9786-BC2-132-1-3 (132- 141 days) and BR(Bio)9786-BC2-119-1-1 (130-140 days) Res. Agric., Livest. Fish.7(1): 01-07, April 2020

Study onGenetic Variability, Heritability and Genetic Advance for Seed Yield and Component Traits in Rice

2017 ◽  
Vol 4 (03) ◽  
Author(s):  
PUNIT KUMAR ◽  
VICHITRA KUMAR ARYA ◽  
PRADEEP KUMAR ◽  
LOKENDRA KUMAR ◽  
JOGENDRA SINGH
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Seed Yield ◽  
Flag Leaf ◽  
Grain Weight ◽  
Major Influence ◽  
Genetic Advance ◽  
Component Traits ◽  
Biological Yield ◽  
1000 Grain Weight

A study on genetic variability, heritability and genetic advance for seed yield and component traits was made in 40 genotypes of riceduring kharif 2011-2012 at SHIATS, Allahabad. The analysis of variance showed highly significant differences among the treatments for all the 13 traits under study.The genotypes namely CN 1446-5-8-17-1-MLD4 and CR 2706 recorded highest mean performance for panicles per hill and grain yield. The highest genotypic and phenotypic variances (VG and VP) were recorded for spikelets per panicle (3595.78 and 3642.41) followed by biological yield (355.72 and 360.62) and plant height (231.48 and 234.35).High heritability (broad sense) coupled with high genetic advance was observed for plant height, flag leaf length, panicles per hill, tillers per hill, days to maturity, spikelet’s per panicle, biological yield, harvest index, 1000 grain weight and grain yield, indicating that selection will be effective based on these traits because they were under the influence of additive and additive x additive type of gene action. Highest coefficient of variation (PCV and GCV) was recorded for tillers per hill (18.42% and 17.23%), panicle per hill (19.76 % and 18.68%), spikelet’s per panicle (34.30 and34.07 %), biological yield (28.31 % and 28.12 %), 1000 grain weight (15.57 % and 15 31 %) and grain yield (46.66% and 23.54 %), indicating that these traits are under the major influence of genetic control, therefore the above mentioned traits contributed maximum to higher grain yield compared to other traits, indicating grain yield improvement through the associated traits.

scholarly journals Growth and yield performance of soybean with the application of Bradyrhyzobium inoculant via furrow and seed

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2387
Author(s):  
Santiel Alves Vieira Neto ◽  
Fábio Ribeiro Pires ◽  
João Carlos Madalão ◽  
Douglas Gomes Viana ◽  
Carlos César Evangelista de Menezes ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Agricultural Production ◽  
Aerial Part ◽  
Dry Matter ◽  
Growth And Yield ◽  
Recommended Dose ◽  
Yield Performance ◽  
Seed Inoculation ◽  
Dry Matter Weight

Given the high costs of agricultural production, especially due to the price of fertilisers, particularly nitrogen, the use of inoculants to supply nitrogen to soybean crops is a widely recommended practice. The objective of this study was to evaluate the feasibility of applying inoculants through seed and planting furrow in soil previously cultivated with soybean and Brazilian native “cerrado” biome soil under greenhouse conditions. Seven treatments were tested: 1) inoculation via seed (inoculant + fungicide + micronutrient), 2) treatment via seed (fungicide + micronutrient), 3) control (only seed), 4) inoculation via furrow-dose 1 (recommended dose), 5) inoculation via furrow-dose 2 (twice the recommended dose), 6) inoculation via furrow-dose 3 (three times the recommended dose) and 7) inoculation via furrow-dose 1 + seed inoculation. We evaluated plant height, fresh and dry matter weight of the aerial part and nodules, number of total, viable and non-viable nodules, number of pods per plant and grain yield. Inoculation was more effective when used in cerrado soil, but soybean performance in treatments without inoculation was higher in previously cultivated soil. Application through furrow proved to be a viable practice due to the similarity of the results obtained with the traditional application by seed.

scholarly journals Genetic improvement of bread wheat yield and associated traits in Spain during the 20th century

2012 ◽  
Vol 151 (1) ◽  
pp. 105-118 ◽  
Author(s):  
M. SANCHEZ-GARCIA ◽  
C. ROYO ◽  
N. APARICIO ◽  
J. A. MARTÍN-SÁNCHEZ ◽  
F. ÁLVARO
Keyword(s):  
Plant Height ◽  
20Th Century ◽  
Wheat Yield ◽  
Grain Weight ◽  
Wheat Improvement ◽  
Yield Gain ◽  
Significant Yield ◽  
Improved Cultivars ◽  
Testing Environments ◽  
New Germplasm

SUMMARYA collection of 26 wheat genotypes widely grown in Spain during the 20th century was evaluated in eight contrasting environments in order to quantify breeding achievements in yield and associated traits. From 1930 to 2000, yield increased at a rate of 35·1 kg/ha/yr or 0·88%/yr, but estimations of relative genetic gain (RGG) were environment-dependent. RGG estimated for yield were positively associated with the average minimum daily temperatures from sowing to heading in the testing environments (R2 = 0·81; P < 0·01). The number of grains/spike and the number of spikes/m2 increased at a rate of 0·60%/yr and 0·30%/yr, respectively, while grain weight remained unchanged. The present study detected two main episodes of yield improvement during the century. The first one coincided with the introduction, during the 1950s, of the first improved cultivars derived from intra-specific crosses, which increased the yield of landraces by 30% due to an increase of c. 58% in the number of grains/spike, accompanied by a 16% reduction in grain weight. These initial cultivars (termed ‘old-bred’ in a previous study by Sanchez-Garcia et al. 2012) exhibited a higher harvest index (HI), increased from 0·25 to 0·40, but maintained the same aboveground biomass at maturity as the landraces (despite reducing both plant height and the number of tillers/plant) due to increases in the proportion of tillers bearing spikes. The second yield gain occurred after the introduction, in the early 1970s, of semi-dwarf germplasm from CIMMYT (International Maize and Wheat Improvement Centre) and some French cultivars. This new germplasm further reduced plant height, improved HI up to 0·45 and increased the number of tillers/plant while maintaining their rate of fertility, thus resulting in a yield gain of c. 37%. The cultivars released during the last decade of the century did not contribute to significant yield improvements.

Effects of Planting Bed and Density on the Yield of Pineapple (Ananas comosus L. var., MD2) Grown in Short Rainy Season in Southern Côte d’Ivoire

2016 ◽  
Vol 11 (1) ◽  
pp. 18-25
Author(s):  
Ouattara Genefol ◽  
Camara Brahima ◽  
Bomisso Edson Lezi ◽  
Cherif Mamadou ◽  
Sorho Fatogoma ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Rainy Season ◽  
Côte D’Ivoire ◽  
Ananas Comosus ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Short Rainy Season

Triticale (X Triticosecale Wittmack) Response to Herbicides

1994 ◽  
Vol 8 (1) ◽  
pp. 119-123 ◽  
Author(s):  
Alan C. York ◽  
Stewart M. Turner ◽  
Ronald E. Jarrett
Keyword(s):  
Plant Height ◽  
Kernel Weight ◽  
Grain Weight ◽  
Test Weight ◽  
X Triticosecale ◽  
Affected Plant ◽  
Yield Test ◽  
Triticosecale Wittmack ◽  
X Triticosecale Wittmack

The response of ‘Florico,’ ‘Victoria,’ and 'Stan II’ triticale to 2,4-D, dicamba, 2,4-D plus dicamba, diclofop, and thifensulfuron plus tribenuron applied POST during the tillering stage was examined. At rates twice those recommended for application to wheat, Victoria and Stan II were not injured, and injury to Florico was less than 10%. None of the herbicides or combinations adversely affected plant height at maturity, tiller or spike production, grain weight/spike, kernel weight, kernels/spike, yield, or test weight of any cultivar. Cultivars varied in tiller production, height, yield, test weight, kernel weight, and kernels/spike.

scholarly journals ОЦІНКА КОМБІНАЦІЙНОЇ ЗДАТНОСТІ СОРТІВ ЯЧМЕНЮЯРОГО ЗА КІЛЬКІСНИМИ ОЗНАКАМИ В УМОВАХ ПІВНІЧНОГО СТЕПУ УКРАЇНИ

2014 ◽  
pp. 23-25
Author(s):  
В. В. Ващенко ◽  
О. О. Шевченко
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Diallel Analysis ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Grain Weight ◽  
1000 Grain Weight

У системі діалельних схрещувань п’яти сортів яч-меню ярого (Донецький 12, Донецький 14, Донецький 15,Прерія, Галактик) установлено особливості генети-чного контролю мінливості ознак: висота рослин,кількість зерен у колосі, маса 1000 зерен у відповід-ності зі співвідношенням варіанс специфічної комбі-наційної здатності (СКЗ) і загальної комбінаційноїздатності (ЗКЗ). Виділено й запропоновано сорти якджерела ознак висота рослин Галактик і Донецький14; кількість зерен у колосі – сорт Прерія; маса 1000зерен – сорт Донецький 15. Виділені зразки з високимі стабільним рівнем комбінаційної здатності запро-поновано використовувати в селекційній роботі. A total of diallel analysis varieties of springbarley Donetskiy 12, Donetskiy 14, Donetskiy 15,Prairie, Galactic set features genetic controlvariability characteristics: plant height, number ofgrains per ear, 1000 grain weight in accordance withthe ratio of variance of specific combining ability(SSI) and general combining ability (ZKZ).Identified and proposed as a source of variety traitsplant height and Donetsk 14, Galactic, the numberof grains per ear sort Prairie, weight of 1000 grainsDonetskiy 15. Samples of high and stable levels ofcombining ability is proposed to use in breedingwork have beeen celected.

scholarly journals Pertumbuhan dan Produktivitas 5 Varietas Unggul Baru Padi di Lahan Bukaan Baru Kabupaten Boven Digoel

2021 ◽  
Vol 23 (1) ◽  
pp. 6
Author(s):  
Fajriyatus Shoidah ◽  
Adnan Adnan
Keyword(s):  
Soil Fertility ◽  
Plant Height ◽  
Block Design ◽  
Grain Weight ◽  
Panicle Length ◽  
Randomized Complete Block Design ◽  
1000 Grain Weight

<p>New wetlands field generally has low productivity, so a technology is needed for improve productivity. New Superior Variety (NSV) is a technology that is considered easy to be adopted by farmers, so knowing a NSV that is able to adapt to the characteristics and conditions of new wetlands field is a must. The study of adaptive NSV on new wetlands field in Boven Digoel Regency is still limited so that the NSV recommendation for farmers is also still limited. The purpose of this study was to examine the growth and production of new superior varieties on the new wetlands fields in Boven Digoel Regency. The study was conducted on new wetlands in Asiki Village, Jair District during April-August 2019. Randomized Complete Block Design was employed with 3 replications using Inpari 36, Inpari 37, Inpago Rindang 1, Inpago Rindang 2 dan Inpara 8. The results showed different varieties perform different agronomy characters observed (plant height, number of tillers, panicle length, number of grains per panicle, filled grain, per panicle, empty grain per panicle and 1000 grain weight). Inpari 37 produced 5.3 ton/ha Dried Unhulled Rice, the highest production compared to other varieties, so that it could potentially be developed in Boven Digoel’s new wetlands field. Productivity may still be increased by improving soil fertility conditions.</p>

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