Nodulation of Legumes in the Sudan III. Response of Haricot Bean to Inoculation

1974 ◽  
Vol 10 (1) ◽  
pp. 45-50 ◽  
Author(s):  
H. A. Habish ◽  
Hassan M. Ishag

SUMMARYField experiments conducted in two localities in two growing seasons on the effect of inoculating haricot bean showed that a local strain of Rhizobium significantly improved nodulation and usually increased the nitrogen content of plants. In three out of four experiments, increases in seed yield were obtained ranging from 20–145 Per cent (significant in two cases). Inoculation was better than 43 kg. N/ha. of combined nitrogen but not better than 86 kg. N. Soil inoculation gave better early nodulation than seed inoculation, but the difference diminished in the later stages of plant growth.

1977 ◽  
Vol 17 (84) ◽  
pp. 126 ◽  
Author(s):  
EJ Corbin ◽  
J Brockwell ◽  
RR Gault

Glasshouse and field experiments were conducted with chickpea (Cicer arietinum) rhizobia to determine the inoculation requirements of this highly Rhizobium-specific legume. There did not appear to be any host-strain specificity within the species. There was a strong nodulation response to inoculation with four strains (unaffected by time of sowing) even at a level of inoculant application below normal. In some field experiments, nodulation responses were not reflected in improved foliage dry matter production or seed yield. However, the correlations between degree of nodulation and plant growth and seed yield were significant. There was a distinct advantage in using solid inoculant applied in the row with the seed instead of conventional seed inoculation when fungicide-treated chickpea was being sown. Two strains, CB1189 and CC1192, were considered suitable for inoculants.


1980 ◽  
Vol 31 (1) ◽  
pp. 47 ◽  
Author(s):  
J Brockwell ◽  
RR Gault ◽  
DL Chase ◽  
FW Hely ◽  
M Zorin ◽  
...  

Sixteen field experiments were conducted to assess whether inoculant applied as a liquid or in solid form separately from the seed but into the seed bed could be used as a substitute for conventional methods of legume seed inoculation. The experiments were done over a period of 8 years, on several soil types, with both crop and pasture legumes. Criteria used to measure response included success of the applied strain of rhizobia in forming nodules, quality of nodulation, seedling establishment, foliage dry matter production, and seed yield. Under favourable conditions for sowing, solid and liquid inoculants were generally as good as seed inoculation at similar total rates of application in promoting root nodulation and plant growth. However, when conditions were unfavourable for survival of rhizobia, e.g. when seed was dusted with toxic fungicide or when germination was delayed owing to environmental circumstances, solid or liquid inoculant gave better nodulation and very often better plant growth and seed yield than seed inoculation. The implications of these findings on alternatives to conventional seed inoculation and how they might be applied to agricultural practice are discussed.


2000 ◽  
Vol 24 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Barry D. Shiver ◽  
John W. Rheney ◽  
Kenneth L. Hitch

Abstract A total of 141 paired plot installations remain of the 160 that were planted with slash (Pinus elliottii Engelm.) and loblolly (P. taedaL.) pine across southeastern Georgia and northern Florida, after 14 growing seasons. Installations were evenly distributed across eight soil types. Analyses indicate that loblolly performed equal to or better than slash pine. There were no soil X species interactions. After 14 yr, loblolly pine had significantly higher survival (71% vs. 66%), stand basal area (98 vs. 81 ft2/ac), total stand volume (1857 vs. 1721 ft3/ac), merchantable stand volume (1497 vs. 1310 ft3/ac), total green weight (53 tons vs. 47 tons), and merchantable green weight (45 vs. 35 tons/ac) than slash pine. Growth over the period from age 11 to age 14 was also higher for loblolly than for slash indicating that the difference in the two species is diverging over time. South. J. Appl. For. 24(1): 31-36.


1978 ◽  
Vol 29 (6) ◽  
pp. 1191 ◽  
Author(s):  
DL Chatel ◽  
AD Robson ◽  
JW Gartrell ◽  
MJ Dilworth

The response of sweet lupins, Lupinus angustifolius L., to a soil application of cobalt and to seed inoculation was examined in both field and glasshouse experiments. Plant growth was dependent on nodule-fixed nitrogen, and the addition of cobalt increased the nitrogen content and the growth of the lupins in the absence of inoculation. Bacteroids in the nodules of inoculated plants without cobalt were found to be fewer and longer than those with cobalt, which suggests that cobalt is involved in the mechanism of rhizobial cell division.


2005 ◽  
Vol 85 (4) ◽  
pp. 893-896 ◽  
Author(s):  
S. Kyei-Boahen ◽  
C. Giroux ◽  
F. L. Walley

Field experiments were conducted in Saskatchewan using chickpea (Cicer arietinum L.) to evaluate fall-applied granular rhizobial inoculant. Seed yield and percentage N derived from fixation generally did not differ between granular inoculant applied in the fall (FG) and seed applied peat-based powder (SP). Results suggest that FG applications may be an alternative to spring seed inoculation for chickpea. Key words: Chickpea, rhizobial inoculant, granular inoculant, nodulation, N2 fixation


2019 ◽  
Vol 65 (No. 8) ◽  
pp. 416-423 ◽  
Author(s):  
Małgorzata Jagła ◽  
Piotr Szulc ◽  
Katarzyna Ambroży-Deręgowska ◽  
Iwona Mejza ◽  
Joanna Kobus-Cisowska

The study presents the results of field experiments, the aim of which was to assess the yield of maize cultivars with different genetic profiles depending on the method of soil preparation for sowing and the method of NP fertilizer application. The yield and water content in the grain were significantly dependent on changing weather conditions in the growing seasons. Sowing maize into the soil cultivated traditionally (autumn ploughing), stay-green type cultivars and row fertilization positively influenced maize yielding. The stay-green cultivar yielded at a higher level compared to the fast maturing cultivar, the difference being significant in the year characterized by unfavourable distribution (deficit) of precipitation in the growing season. The stay-green cultivar reacted favourably to the localized application of NP fertilizer, the clear result of which was the increase in grain yield. Direct maize sowing significantly reduced the number of production ears per surface area unit and the number of grains on the ear. Selection of the stay-green cultivar and row fertilization with NP fertilizer improved this condition.  


Author(s):  
S. Sajjan Ashok ◽  
Pramoda . ◽  
T.A. Malabasari ◽  
T.R. Shashidhar

Field experiments were conducted in the Department of Seed Science and Technology, University of Agricultural Sciences, Dharwad, Karnataka during 2016-17. The field experiment consisted of 18 treatment combinations involving two seasons viz., kharif 2016 and rabi 2016-17 and plant growth regulators viz., G1: Control, G2 : GA3 @ 50 ppm, G3 : NAA @ 40 ppm, G4 : Cycocel @ 100 ppm, G5 : Mepiquat chloride @ 50 ppm, G6 : Nitrobenzene @ 200 ppm, G7: TIBA @ 50 ppm, G8 : Brassinosteroids @ 200 ppm, G9 : GA3 @ 5 ppm + IAA @ 5 ppm and experiment was laid out in Factorial RBD with three replications. The more number of pods per plant (117.19), number of seeds per pod (4.25), dry pod yield per plant (118.53 g), dry pod yield per plot (2.07 kg), seed yield per plant (114.48 g), pod length (5.66 cm), seed yield per plot (2.32 kg), seed yield per hectare (1,281 kg) was recorded in rabi season than kharif. Among the plant growth regulators more number of pods per plant (120.44), number of seeds per pod (4.44), dry pod yield per plant (120.17 g), dry pod yield per plot (2.21 kg), seed yield per plant (117.60 g), seed yield per plot (2.55 kg), seed yield per hectare (1,360 kg) and pod length (6.04 cm) was recorded in NAA @ 40 ppm, followed by nitrobenzene @ 200 ppm, (119.78, 4.35, 119.54, 2.11, 116.76, 2.42, 1,299 kg and 5.93 cm, respectively). The interaction effect was found to be non-significant for majority of the characters studied. However, foliar spray of NAA @ 40 ppm during rabi season recorded higher crop growth, seed yield and quality parameters as compared to control.


2012 ◽  
Vol 58 (No. 9) ◽  
pp. 399-404 ◽  
Author(s):  
M. Islam

Field experiments were conducted at two different locations (Barani Agricultural Research Institute Chakwal and farm field Talagang, district Chakwal) for two crop-growing seasons in northern rainfed Punjab, Pakistan to assess the yield and micronutrient uptake of chickpea (Cicer arietinum). The treatments were four combinations of two levels of sulfur (15 and 30 kg/ha) from two sources (gypsum and ammonium sulfate) and a no-sulfur control. Application of sulfur resulted in a significant increase in seed yield up to 17% over control. Ammonium sulfate was a more efficient source of sulfur as compared to gypsum at both the locations. Sulfur application resulted in a significant increase in micronutrient uptake by plant; however effect of sulfur application on soil pH at the end of experiment was not significant. Availability of soil zinc and copper increased with sulfur application at the end of two year experiment. Tissue copper and iron and soil available copper and iron correlated negatively with soil pH. Sulfur should be applied to chickpea grown under rainfed conditions in order to increase seed yield, to improve nutritional composition of product and to enhance efficiency of other fertilizers.


Author(s):  
Marleena Hagner ◽  
Marja Uusitalo ◽  
Hanna Ruhanen ◽  
Juha Heiskanen ◽  
Rainer Peltola ◽  
...  

AbstractIn the northern boreal zone, revegetation and landscaping of closed mine tailings are challenging due to the high concentrations of potentially toxic elements; the use of nutrient-poor, glacigenic cover material (till); cool temperatures; and short growing period. Recycled waste materials such as biochar (BC) and composted sewage sludge (CSS) have been suggested to improve soil forming process and revegetation success as well as decrease metal bioavailability in closed mine tailing areas. We conducted two field experiments in old iron mine tailings at Rautuvaara, northern Finland, where the native mine soil or transported cover till soil had not supported plant growth since the mining ended in 1989. The impacts of CSS and spruce (Picea abies)–derived BC application to till soil on the survival and growth of selected plant species (Pinus sylvestris, Salix myrsinifolia, and grass mixture containing Festuca rubra, Lolium perenne, and Trifolium repens) were investigated during two growing seasons. In addition, the potential of BC to reduce bioaccumulation of metals in plants was studied. We found that (1) organic amendment like CSS markedly enhanced the plant growth and is therefore needed for vegetation establishment in tailing sites that contained only transported till cover, and (2) BC application to till soil-CSS mixture further facilitated the success of grass mixtures resulting in 71–250% higher plant biomass. On the other hand, (3) no effects on P. sylvestris or S. myrsinifolia were recorded during the first growing seasons, and (4) accumulation of metals in cover plants was negligible and BC application to till further decreased the accumulation of Al, Cr, and Fe in the plant tissues. Graphical abstract


2010 ◽  
Vol 61 (10) ◽  
pp. 844 ◽  
Author(s):  
C. Mariano Cossani ◽  
Gustavo A. Slafer ◽  
Roxana Savin

In semiarid Mediterranean environments, low nitrogen (N) and water availabilities are key constraints to cereal productivity. Theoretically, for a given level of N or water stress, crops perform better when co-limitation occurs. Empirical evidence of this theoretical concept with field crops is rather scarce. Using data from field experiments we evaluated whether N-use efficiency (NUE) and water-use efficiency (WUE) in small grain cereals increases with the degree of co-limitation. Four field experiments were carried out during three growing seasons including factorial combinations of bread wheat, durum wheat and barley, grown under different N fertiliser rates and water regimes. Yield gap was calculated as the difference between maximum attainable yield and actual yield while stress indices for N (NSI) or water (WSI) were calculated as the ratios between actual N uptake or water use and those required to achieve maximum yields, respectively. Water and N co-limitation was calculated as C WN = 1 – |NSI–WSI|. The relationships of yield gap, NUE and WUE with the different co-limitation indices were evaluated. Yield gap (range from –3.8 to –8.1 Mg ha–1) enlarged (was more negative) with the highest levels of stress and, as expected from theory, it was reduced with the degree of co-limitation. WUE ranged from 6.3 to 21.8 kg ha–1 mm–1 with the maximum values observed under conditions in which co-limitation increased. Reduction in yield gap with increased degree of co-limitation was mainly due to a positive effect of this variable on WUE.


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