Growth and yield of soybean varieties inoculated with Bradyrhizobium spp in N-deficient calcareous soils

2004 ◽  
Vol 40 (2) ◽  
pp. 144-146 ◽  
Author(s):  
D. Egamberdiyeva ◽  
D. Qarshieva ◽  
K. Davranov
Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 90 ◽  
Author(s):  
José Casanova-Gascón ◽  
Pablo Martín-Ramos ◽  
Clara Martí-Dalmau ◽  
David Badía-Villas

Lime-induced chlorosis (LIC) is an important abiotic constraint affecting the growth and yield of grapevines growing in calcareous soils in the Mediterranean region, and the sensory properties of the produced wine. In the work presented herein, the impact of LIC on the nutritional status and chlorophyll content was assessed for eleven varieties and a clone (Merlot, Pinot Noir, Cabernet Sauvignon, Tempranillo, Parraleta, Moristel, Aglianico, Macabeo, Sauvignon, Chardonnay, and Riesling), grafted to the same rootstock (1103 Paulsen). Macro- and micronutrient contents were determined in the fruit set and veraison stages by petiole analyses, while chlorophyll content in young leaves was monitored by SPAD. Significant differences were detected amongst varieties for all nutrients (including Fe), and inverse relationships between Fe and P contents in the petiole and chlorophyll concentration in the young leaves were found. Regarding LIC resistance, the Fe and chlorophyll contents suggest that Cabernet Sauvignon, Tempranillo and Aglianico varieties would show the best performance, while Sauvignon would be the least tolerant.


2021 ◽  
Author(s):  
S M Nazmuz Sakib

Wheat is a cereal crop that is mainly used by humans as a source of starch and energy and is also used for livestock around the world. Wheat straw is rich in cellulose fibers, hemicellulose, protein and ash. Wheat is the most cultivated crop in the world and especially in Pakistan. As the population grows rapidly, wheat production needs to be increased to bridge the gap between growth and consumption. The amount of phosphorus required for wheat is much higher than for other crops. It is the most important nutrient needed by the wheat plant and it is important for the development of wheat from seedling to adulthood. Farmers add phosphorus to obtain high yields of wheat on phosphorus-deficient soils. Most of these soils are calcareous and its availability in wheat is due to its reaction with various heavy metals present in the soil. Low molecular weight organic acid oxalic acid in combination with phosphoric acid plays an important role in the mobilization of phosphorus in the soil. Oxalic acid secreted from the roots plays an important role in preventing phosphorus deficiency as it plays an important role in phosphorus mobilization. Agricultural soils of Pakistan are generally calcareous soils with high pH and low organic matter content usually less than one percent and more phosphorus fixation capacity and it has been reported that phosphorus is not sufficient to support prosperous agriculture. These calcareous soils contain more calcium carbonate, so when phosphate is applied, it binds to the soil and is not available to plants.


Author(s):  
M. Mosupiemang ◽  
K. Bareeleng ◽  
M.S. Chiduwa and O.O. Molosiwa

Background: Crop yields in the semi-arid regions are low due to climatic and soil related constraints.Soybean as one of the most important legume crops grown worldwide, has a role to contribute nitrogen to improve nutrient poor soils in Africa. A study was conducted to examine the effects of Bradyrhizobium spp inoculations on the growth and yield of soybean varieties in a glasshouse.Method: The study was arranged in a randomized complete block factorial design, with factor A being two soybean varieties (Bimha and Status) while factor B was inoculation using four Bradyrhizobium strains and the uninoculated control. Results: Bradyrhizobium inoculation significantly (P less than 0.001)affected days to 50% flowering, days to emergence, nodule number, root dry weight and grain yield and yield traits. Parameters that were affected by both inoculant strain and variety included days to 50% flowering, days to emergence, number of pods per plant, pod weight and number of seeds per pod. The interaction effect of variety and Bradyrhizobium inoculant strain was observed only on number of pods per plants. Our study shows that soybean grows well when inoculated with Bradyrhizobium inoculants, in semi-arid conditions of Botswana.


2015 ◽  
Vol 12 (2) ◽  
pp. 24-33 ◽  
Author(s):  
M N A Naher ◽  
M N Alam ◽  
N Jahan

An investigation was carried out in the calcareous soil of Chapai Nawabganj belonging to the High Ganges River Floodplain during November 2008 to March 2009 to examine the effect of different macro and micronutrients (N, P, K, S, Zn, B and Mo at 150, 50, 100, 20, 3, 3 and 1 kg/ha, respectively) on the growth and yield of cabbage. Application of different nutrients exhibited significant influence on the growth and yield of cabbage. The highest plant spread (70.76 cm), height (37.89 cm), leaf length (37.83 cm), leaf breadth (27.13 cm), head thickness (12.85 cm), head diameter (23.02 cm), marketable head yield (76.53 t/ha) which is 191% increase over control), early head formation and maturity were recorded from the plot receiving N, P, K and B at the rate of 150, 50, 100 and 3 kg/ha, respectively. The treatment N, P, K and S showed the highest weight of loose leaves (640 g/plant) and decreased the weight of folded leaves or head weight, whereas, the treatment N, P, K and B increased the folded leaves or maximum head weight (1894.18 g/plant).  The Agriculturists 2014; 12(2) 24-33


2013 ◽  
Vol 23 (2) ◽  
pp. 247-251 ◽  
Author(s):  
Ricardo Goenaga ◽  
Tomas Ayala ◽  
Adolfo Quiles

Cowpea or southernpea (Vigna unguiculata) is an important legume crop used as a feed for livestock, as a green vegetable and for consumption of its dry beans, which provide 22% to 25% protein. The crop is very sensitive to alkaline soil conditions. When grown at a soil pH of 7.5 or higher, cowpea develops severe leaf chlorosis caused by deficiencies of iron, zinc, and manganese resulting in stunted plant growth and yield reduction. We evaluated in replicated field experiments at St. Croix, U.S. Virgin Islands, and Miami, FL, four PIs and one commercial cultivar, some of which have shown some tolerance to alkaline soils in unreplicated, seed regeneration plots of the U.S. cowpea collection. At both locations, PI 582702 had significantly higher seed protein concentration than the other PIs, averaging 28%. Alkaline soil conditions at St. Croix were severe resulting in average yield of PIs at this location being significantly lower and 69% less than that in Florida. Nevertheless, some PIs performed well at both locations. For example, PI 582605 had significantly higher yield in Florida, whereas in St. Croix, PIs 582605, 582674, and 582702 were the highest yielders. These PIs may serve as an alternative to growers or home gardeners wishing to establish a legume crop in areas where agricultural production is severely restricted by high soil alkalinity.


HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 507E-508
Author(s):  
Teresa Olczyk ◽  
Kent Cushman ◽  
Waldemar Klassen

Okra (Abelmoschus esculentus) is grown as a direct-seeded cash crop at high plant populations (>87,000 plants/acre) on calcareous soils in Homestead, south Florida. A study was established in a commercial field in May 2005 to evaluate if high populations translated to higher yields. Seedlings were thinned to within-row spacings of 2, 4, 6, 8, and 10 inches in rows set 3 ft apart (87120, 43560, 29040, 21780, and 17420 plants/acre). Harvest data was collected from 29 July to 30 Sept. 2005 (26 harvests) from 10 ft of the center row within plots 15 ft long and 3 rows wide. Decreasing plant density resulted in decreasing plant height early in the season and increasing height late in the season. Density affected stem caliper with a clear trend of decreasing density and increasing caliper. Early, mid-, and total yields by weight (boxes/acre) were not affected by density, but plants at the lowest density produced 55% more late yield than plants at the highest density. Plants at the lowest density produced 30% fewer early pods and 31% more late pods than plants at the highest density. Decreasing plant density resulted in increasing average pod weight for early, late, and total harvests by as much as 14% to 18%. With inexpensive open pollinated cultivars such as `Clemson Spineless 80', there seems little economic incentive to reduce plant populations below what is commonly used in the Homestead area. Growers should not be alarmed, however, if plant stands are reduced to some extent after seeding.


Author(s):  
Muhammad Akbar Anjum ◽  
Hafiza Muniba Din Muhammad ◽  
Rashad Mukhtar Balal ◽  
Riaz Ahmad

Onion is one of the most valuable vegetables all over the world. It prefers loose, well drained loamy soils rich in organic matter. In calcareous soils, the growth and yield of onion crop is low. The objective of the present investigation was to study the performance of two onion cultivars (Super Selection and Nasarpuri) in calcareous soil by adopting proper planting system. The crop was planted under two planting systems i.e. flat bed and ridge system. Significantly higher leaf weight was recorded on ridges than flat beds. Root weight was significantly higher in cultivar Nasarpuri than Super Selection. Moreover, plants on ridges attained more root weight than those grown on flat beds. Larger equatorial and polar diameters of bulbs were recorded in Super Selection, and also in the plants grown on ridges. The bulbs harvested from ridges had higher moisture content, than those harvested from flat beds. The neck diameter was significantly greater in Nasarpuri as compared with Super Selection. Number of splited bulbs and number of splits in bulbs were not affected by the cultivars and planting systems. The highest bulb weight was recorded from ridges in cv. Nasarpuri, followed by Super Selection. The significantly greater economic yield, biological yield and harvest index were obtained from the plants grown on ridges. Leaf weight showed significant association with neck diameter, bulb weight, economic yield and biological yield. Bulb weight showed significant correlation with economic yield, biological yield and harvest index.


2019 ◽  
Vol 18 (4) ◽  
pp. 25-33
Author(s):  
Muhammad T. Tahir ◽  
Muhammad A. Anjum ◽  
Muhammad Saqib ◽  
Muhammad F. Khalid ◽  
Sajjad Hussain

A field study was conducted to evaluate the effect of different plant growth regulators (PGRs) applied through seed priming and foliar spray on growth and yield of three okra cultivars grown under calcareous soils. The cultivars of Punjab Selection and Sabzpari produced significantly higher number of branches and leaves per plant, pod length and diameter and pod yield as compared to cv. Green ferry, while, cv. Punjab selection produced significantly greater number of flowers and pods per plant as compared to other two cultivars. Seed germination (%), plant height, and fruit set (%) were not affected by the cultivars. Among the PGR treatments, seed primed with GA3 resulted in significantly higher germination percentage and greater plant height at flowering. Seed priming and foliar spray with NAA and GA3 were effective in increasing the final plant height, number of branches, number of leaves, number of flowers and number of pods per plant and fruit set (%), fresh weight per pod and pod yield. However, pod diameter, pod moisture content and dry weight per pod were not influenced by the PGR treatments applied. These results suggested that the PGRs have great potential to improve seed germination, enhance growth and increase yield of okra cultivars under calcareous soils.


2021 ◽  
Vol 81 (01) ◽  
pp. 74-86
Author(s):  
Gopalakrishna K. Naidu ◽  
Santosh K. Pattanashetti ◽  
Omesh Kumar ◽  
Onteddu Sridevi ◽  
Basanagouda C. Patil

Groundnut is sensitive to Fe deficiency under alkaline and calcareous soils and exhibits iron deficiency chlorosis (IDC) causing significant reduction in growth and yield. Genotypes were assessed for IDC related traits such as visual chlorosis rating, SPAD chlorophyll meter reading, chlorophyll and active iron (Fe2+) content across five growth stages and also for productivity traits viz., plant height, number of primary branches, number of pods per plant, pod yield, shelling per cent, 100 seed weight and haulm yield. Comparison between Fe-supplemented and Fe-nonsupplemented condition for IDC related traits showed not much difference among IDC tolerant genotypes across all five growth stages, while significant differences among IDC susceptible genotypes were observed. Maximum reduction in pod yield was observed among IDC susceptible genotypes compared to IDC tolerant and moderately tolerant genotypes. However, recently released variety G 2- 52 with moderate tolerance to IDC and higher yield potential recorded higher pod yield both under Fe applied (1754 kgha–1) and non-applied conditions (1544 kgha–1).


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