scholarly journals Evaluation of Variety, Cropping Pattern and Plant Density on Growth and Yield Production of Grain Sorghum -Cowpea under Limited Water Supply Condition Growth, yield and yield component characters of Sorghum

2013 ◽  
Vol 2 (3) ◽  
pp. 24-29
Author(s):  
Refay .Y. A., A. A. Refay .Y. A., A. A.
2021 ◽  
Vol 1 (3) ◽  
pp. 229-236
Author(s):  
Damte Balcha Gadana

Most farmers’ practices broadcast sowing methods and productivity is less. Soil fertility maintenance is a major concern in tropical Africa which needs to tackle soil fertility depletion as a fundamental constraint. Similarly, the traditional way of planting tef reduces the amount of grain production, promotes competition for inputs, and causes severe lodging. This paper aimed to review the interaction effects between seed sowing methods and different types of inorganic fertilizers on the growth and yield of teff. In Ethiopia, recent research indicates planting method (row planting and broadcasting) affects the yield and yield components of teff. The review indicates the yield components include heading and maturity, plant height, first growth rate, number of tiller and panicle, thousand seed weight, grain, straw, and total biomass yields and harvest index high in Method of Row sowing compared to broadcast in Ethiopia but Days to emergence and panicle length were more affected by broadcasting. In economical acceptance, Row sowing was found to be economically acceptable with more income from grain yield than broadcasting.


1990 ◽  
Vol 41 (3) ◽  
pp. 449 ◽  
Author(s):  
GK McDonald

The growth and yield of two lines of uniculm barley, WID-103 and WID-105, were compared over a range of sowing rates (50-400 kg/ha) with the commercial varieties Galleon and Schooner. The experiments were conducted at Strathalbyn, S.A., in 1986, 1987 and 1988 and at the Waite Agricultural Research Institute in 1987. A third tillered variety, Clipper, was included in the comparison in 1988. Over the three years plant populations measured early in the season ranged from 39/m2 to 709/m2, and grain yields from 97 to 41 1 g/m2. Dry matter production at ear emergence increased with greater plant density, and both the tillered varieties and the uniculm lines showed similar responses to higher sowing rates. At maturity, dry matter production of the tillered barleys was greater than or equal to that of the uniculms and the harvest indices (HIs) of the two types were similar. Consequently, grain yields of the tillered types were greater than or equal to the yields of the uniculms. Over the four experiments the tillered varieties had a 6% higher yield. The number of ears/m2 was the yield component most affected by plant density in both the tillered and uniculm barleys. The uniculm lines had more spikelets/ear, but tended to set fewer grains/spikelet and produce smaller kernels. The experiments failed to demonstrate any advantage of the uniculm habit to the grain yield of barley. These results differ from previous experiments that showed that a uniculm line, WID-101, had a higher yield than the tillered variety Clipper. It is suggested that the uniculm habit per se was not the cause of this higher yield, but its higher HI resulted in it outyielding Clipper. Current varieties, however, have HIs similar to the uniculm lines and yield equally to or more than the uniculm barleys examined. To further improve the grain yield of uniculm barley, greater dry matter production is necessary as the HIs of these lines are already high.


Author(s):  
Magdi A.A. Mousa ◽  
Adel D. Al Qurashi

A field experiment was conducted in 2013 and 2014 at the Agriculture Experimental Station of King Abdulaziz University to study the effects of water deficit treatments at different growth stages on growth, yield and IWUE on cowpea cultivars. Four water deficit treatments were applied T0 (no water deficit), T1 (at vegetative stage), T2 (at flowering and pod setting), T3 (at pod filling), T4 (at vegetative and flowering) and T5 (at flowering and pod filling). The cultivars ‘Balady’ under water deficit T1, T3 and T4 and ‘Cream7’under T1 and T2 produced the highest yield component parameters except number of pods/plant. The highest yield of dry seeds kg/ha was produced by the cultivars ‘Cream7’ under water deficit T1 and T3 and ‘Balady’ under T2. ‘Cream7’ and ‘Balady’ revealed the highest irrigation water use efficiency (IWUE) under water deficit T1, T2 and T4. High seed yield of ‘Balady and ‘Cream7’ can be obtained by applying water deficit at vegetative stage (T1).


1982 ◽  
Vol 99 (2) ◽  
pp. 305-310 ◽  
Author(s):  
H. M. Ishag

SUMMARYA study was carried out for 2 years in the arid zone of the northern region of the Sudan to investigate the effects of watering intervals on flowering, growth, yield and yield components of three groundnut cultivars. The variation in air temperature prevailing above the canopy through frequent and extended watering intervals affected the periodicity of flowering. MH 383 gave the highest pod yield and it was drought tolerant compared with Ashford and Turkish cultivars. Pod losses were smaller with longer watering intervals. Number of pods per plant was the yield component most affected by watering. Leaf area index increased with frequent watering and reached a value of 5·8. Net assimilation rate decreased at first, but later increased with the pegging of gynophores.


2021 ◽  
Vol 39 (2) ◽  
pp. 161-168
Author(s):  
Leonardo Balena ◽  
João Pedro Malanchuk ◽  
Cleto Tamanini Junior ◽  
Erica L Ribas ◽  
Vlandiney Eschemback ◽  
...  

ABSTRACT Potato seed is one of the largest costs of a crop. This is mostly due to the incidence and spread of viruses that occurs when the crop is grown in the open field. Thus, it is necessary to obtain virus-free potato plantlets through meristem isolation, with subsequent cultivation in a protected environment, where it is easier to control virus-spreading insects. One way to increase greenhouse viability is by multiplicating potato seed using high technology systems, among them, aeroponics. The objective of this work was to determine the effect of planting density on the growth and yield of potato plants cv. Agata in aeroponic cultivation, and the effect of harvesting dates and planting densities on the dormancy of harvested minitubers. The number of stems, leaves, and the number and fresh weight of minitubers/plant reduced when planting density was increased from 60 to 180 plants/m2. However, the number of stems, leaves, initiated minitubers, and the number and fresh weight of minitubers/m2 increased when planting density was increased from 60 to 180 plants/m2. The maximum number of type III minitubers (>30 mm) was 613/m2, obtained at the density of 180 plants/m2. Plant density did not affect the dormancy of harvested minitubers, but harvesting date did. Minitubers obtained from latter harvesting dates had a shorter dormancy period. Minitubers harvested at 78 and 64 days after transplanting sprouted 21 and seven days earlier than those picked at 50 days after transplanting.


2021 ◽  
Vol 23 (2) ◽  
pp. 35-43
Author(s):  
MM Islam ◽  
AA Mamun ◽  
SK Ghosh ◽  
D Mondal

Nitrogen is one of the main inputs of oat cultivation and its efficient management is a basic for harvesting the maximum potentiality of the crop. An investigation was conducted at field laboratory of Agrotechnology Discipline, Khulna University, Bangladesh to find out the effect of nitrogen fertilizer on growth, yield and yield contributing characters of oat during 2017-2018. The experiment was designed in randomized complete block with seven N rates (0, 30, 45, 60, 75, 90 and 105 kg ha-1) in triplicate run. Application of N nitrogen significantly increased the growth and yield of oat. The results showed that 105 kg ha-1 N was supreme in all growth parameters and straw yield but 90 kg ha-1 N was better for main yield parameters and grain yield. The maximum plant height (101.27 cm), leaf number (11.90), tillers plant-1 (9.93), plant density (41.33 m-2) and straw yield (4.70 tha-1) were recorded with  105 kg ha-1 N application, whereas the highest grain yield (1.76 t ha-1) was found with 90 kg ha-1 N. From the results of the present research, it may be concluded that application of 90 kg N ha-1 could be used for oat production in soils of AEZ 13, Bangladesh. Bangladesh Agron. J. 2020, 23(2): 35-43


Agrikultura ◽  
2017 ◽  
Vol 28 (1) ◽  
Author(s):  
Nedya Deninta ◽  
Tino M Onggo ◽  
Kusumiyati Kusumiyati

ABSTRACTThe influence of various concentrations and application methods of Gibberelic Acid on growth and yield of broccoli Cv. Lucky in LembangBroccoli’s yield from side shoots was expected to increase with GA3 application, due to the translocation of nutrients faster and better towards the side shoots. The experiment was carried out to study the interaction between concentration and application method of GA3 on growth and yield of broccoli. The experiment was conducted from February up to Mei 2016 at CV. Agro Duta Farm, located in Cisarua – West Bandung, at an elevation of 1,100 m above the sea level. The experimental design used was Factorial Randomized Block Design (FRBD) with three replications, consisted of two factors and three levels. The first factor was concentration of GA3, comprised of 25 mg/l, 50 mg/l, and 100 mg/l. The second factor was application method of GA3, comprised of three levels: seedling soaking for 24 hours, foliar spray at 15 and 25 DAT, seedling soaking for 24 hours and foliar spray at 15 DAT. The results showed that there was no interaction between concentration and application method of GA3 on growth and yield component. GA3 of 100 mg/l significantly increased the percentage of weight and number of B’s quality, and decreased the percentage of weight and umber of C’s quality of broccoli from side shoots. The higher percentage of weight and number of B’s quality from side shoots were obtained from seedling soaking of GA3 for 24 hours.Key words: Growth, Yield, Quality, Broccoli side shootABSTRAKHasil tanaman brokoli dari tunas samping diharapkan dapat meningkat dengan adanya pemberian GA3, yang mampu mempengaruhi translokasi nutrisi yang lebih cepat dan lebih baik menuju tunas samping. Percobaan ini dilakukan untuk mengetahui pengaruh interaksi antara pengaruh konsentrasi dan metode aplikasi hormon GA3 terhadap pertumbuhan dan hasil tanaman brokoli kultivar Lucky. Percobaan ini dilaksanakan pada bulan Februari sampai dengan Mei 2016 di lahan CV. Agro Duta Farm, Kecamatan Cisarua – Kabupaten Bandung Barat, dengan ketinggian tempat 1.100 meter di atas permukaan laut. Rancangan percobaan yang digunakan yaitu Rancangan Acak Kelompok (RAK) pola faktorial dengan dua faktor perlakuan, masing-masing terdiri dari 3 taraf yang diulang tiga kali. Faktor pertama adalah konsentrasi GA3 25 mg/l, 50 mg/l, dan 100 mg/l. Faktor kedua adalah metode aplikasi GA3 yang terdiri dari taraf: perendaman bibit selama 24 jam, penyemprotan daun 15 dan 25 HST, serta perendaman bibit 24 jam dan penyemprotan daun 15 HST. Hasil percobaan menunjukkan bahwa tidak terdapat pengaruh interaksi antara konsentrasi dan metode aplikasi hormon GA3 terhadap komponen pertumbuhan dan hasil brokoli. Konsentrasi GA3 100 mg/l dapat meningkatkan persentase bobot dan jumlah brokoli kualitas B, serta menurunkan persentase bobot dan jumlah brokoli kualitas C dari tunas samping. Metode aplikasi perendaman akar bibit selama 24 jam dapat menghasilkan persentase bobot dan jumlah brokoli kualitas B dari tunas samping yang lebih tinggi dibandingkan dengan kedua perlakuan lainnya.Kata kunci : Pertumbuhan, Hasil, Kualitas brokoli dari tunas samping


1984 ◽  
Vol 35 (1) ◽  
pp. 17 ◽  
Author(s):  
AA Done ◽  
RJK Myers ◽  
MA Foale

The effects of five frequencies of furrow irrigation, ranging from every 7 days to once-only-at-sowing, on the growth and yield of six cultivars of grain sorghum were investigated at the Kimberley Research Station during the 1976 dry (winter) season. No rain fell during the experiment. The reduced water supply, both at 42-day intervals and at one irrigation (at sowing), depressed dry matter production and tillering at 42 and 77 days after sowing. The grain yield component most affected was number of grains per head, due entirely to a reduced number of normal florets. All stages of development were hastened by longer irrigation interval, except in the cultivar Q7844, where floral initiation was markedly delayed in all treatments relative to the 14-day irrigation interval. The optimum irrigation interval for grain yield was determined to be in the range of 12-18 days, although there were no significant differences among the three shortest irrigation intervals of 7, 14 and 28 days. The highest grain yield, 5810 kg ha-1, was achieved with the 14-day interval, whilst the lowest, 1980 kg ha-1, was from a single irrigation at sowing. Plant nitrogen yields were reduced at both the longest and shortest intervals.


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