scholarly journals Nitrogen enhanced sorghum morpho-physiological activity, and antioxidant capacity

Author(s):  
Irshad Ahmad ◽  
Guanglong Zhu ◽  
Guisheng Zhou ◽  
Xudong Song ◽  
Yousaf Jamal ◽  
...  

Abstract Imbalanced mineral nutrition and scant information about nitrogen (N) in plants may result in reduction in sorghum morpho-physiological activities. However, farmers use higher or lower fertilizer doses regarding sorghum growth and yield. This study was undertaken to determine the response of sorghum morpho-physiological activities to different rates of nitrogen (N) during two growing seasons of 2017 and 2018. The treatments were consisted of a factorial combination of three N levels (N1 = 0 kg N ha− 1, N2 = 150 Kg N ha− 1, and N3 = 300 kg N ha− 1) and two varieties (V1 = CFSH30, and V2 = Siyong 3180). Treatments were arranged in a randomized complete block design with three replicates. Our results found that N application (N2 and N3) significantly increased plant growth and morpho-physiological activities; leaf length increased by 2.7–8.9%, leaf width by 0.4–4.5%, plant height by 27.8–20.5%, Specific leaf weight by 4.2–10.9%, leaf weight by 18.4–17.4%, and protein contents by 39.5–117.0% compared to N1. Interestingly, higher rates of N reduced number of plants m− 2 by 42.4–24.8% but increased number of plants m− 2 weight kg− 1 by 11.6–62.8%. Moreover, compared with control, N enhanced CAT activity by 92.8-131.9%, SOD by 81.2–84.5%, and POD by 43.6–52.8% in 2017 and 2018. This study indicated that N3 significantly performed best among all treatments during the two growing seasons particularly in case of V1. Moreover, we also concluded that V1 performed better in terms of producing higher leaf width, plant height, specific leaf weight, stem weight, number of plants m2 (weight/kg− 1), protein contents, and antioxidant enzymes activity as compared to V2.

2019 ◽  
Vol 17 (1) ◽  
pp. 175-187
Author(s):  
R Rai ◽  
J Shrestha ◽  
JH Kim

An experiment was carried out using eight double cross F1s (DCF1s) as lines and two testers to obtain sixteen Line ×Tester hybrids for the evaluation of major growth and flowering traits thereby to understand the breeding potentiality of the parental lines. The performance of growth and flowering traits of all twenty-six genotypes were evaluated in a randomized complete block design (RCBD) with three replications. The analysis of variance (ANOVA) showed all the genotypes were significantly different for all agro-morphological traits under study. The estimated general combining ability (GCA) effects showed that parent 5(P5), were superior for plant height, stem diameter, number of leaves, leaf length, days to flowering and attitude of floral axis followed by parent 2(P2) for leaf length, leaf width, days to flowering and attitude of floral axis and parent7 (P7) for number of flower, flower diameter, bud length and attitude for floral axis. Likewise; tester 1 found to be best combiner with significant GCA effect for almost all growth and flowering traits (except number of leaves). The plant height, leaf width, number of flower and attitude of floral axis showed prevailing additive gene action while stem diameter, number of leaves, leaf length, days to flowering, flower diameter and bud length indicated predominance of dominance gene action. We can conclude that parent P5, parent P2 and parent P7 can be used as good mother lines and the tester 1, as good donor for the seed production. SAARC J. Agri., 17(1): 175-187 (2019)


2020 ◽  
Vol 22 (1) ◽  
pp. 95-104
Author(s):  
M Salwa ◽  
MA Kashem

The experiment was conducted in the Dekarhaor of Noagaon village under South Sunamganj Upazila of Sunamganj district during November 2017 to February 2018 to observe the effect of nutrients management on growth and yield of cauliflower hybrids. Two Hybrids namely ShiraGiku (V1) and Rupali (V2), and four combinations of nutrients, viz. (i) recommended rate of N-P-K-S-Zn-B @ 180-80-180-28-4.5-2.1 kg ha-1(F1), (ii) F1 + 25% N-P-K- S-Zn-B of F1 (F2), (iii) F1 – 25% N-P-K-S-Zn-B of F1 (F3), and (iv)  cow dung @ 10 t ha-1 (F4)  was conducted in a factorial randomized complete block design (RCBD) and replicated thrice. Plant height (cm), numbers of leaves plant-1, leaf length (cm) and leaf breadth (cm), and spreading diameter (cm) were collected at 15 days intervals, while the yield data were recorded at harvest. The parameters were significantly varied due to hybrids and fertilizers packages. Higher gross yield (42.52tha-1) was found in Shira Giku and lower (42.12 t ha-1) from Rupali. Higher curd yield of 25.17 t ha-1 was obtained in Shira Giku than Rupali (9.61 t ha-1). The highest gross yield of 44.45 t ha-1 was obtained when the crop was treated with cowdung @ 10 t ha-1 followed by recommended fertilizer rate (F1). The curd yield of 18.19 t ha-1 was obtained with 25% less than recommended fertilizer rate of application (F3). The highest gross yield of 52.93 t ha-1 was obtained in V1F1 combination and the lowest of 30.10t ha-1in V2 F1. Results revealed that the Hybrid ShiraGiku with recommended dose of fertilizer (180-80-180-28-4.5-2.1 kg ha-1N-P-K-S-Zn-B) performed the best in comparison to other treatment combinations. Bangladesh Agron. J. 2019, 22(1): 95-104


2020 ◽  
Vol 25 (2) ◽  
pp. 2107-2113
Author(s):  
H. E. Rabbee ◽  
N. J. Methela ◽  
B. Hossain ◽  
M. R. I. Suhel

The present experiment was carried out at Agricultural Research field, Noakahali Science and Technology University, Noakhali, Bangladesh during the period from September 2018 to February 2019 to find out the effects of Vermicompost and Farmyard manure growth and yield of Broccoli. The single factor experiment was carried out by Randomized Complete Block Design (RCBD) with three replications. Three treatments viz., T0= Control, T1= Vermicompost and T2= Farm Yard Manure as well as Centeuro variety were used. Data were recorded from different stages of plant growth on plant height at different days after transplanting, number of leaves/plant, leaf length, leaf diameter, plant spread, 50% curd initiation days, 50% curd maturation days, curd diameter, Marketable curd weight, Net curd weight and Yield/plot. All the recorded parameters were statistically significant among the treatments. The tallest plant (43.67cm) can be recorded from T1 (vermicompost) whereas lower plant height (38.10cm) was notified from control (T0). The maximum number of leaves (16.03) recorded from vermicompost treated plant where minimum from control (T0; 13.28). Highest leaf length (40.67cm), leaf diameter (16.22cm), plant spread (47.91cmü), early curd initiation (73.22 days), early curd maturation (89.72 days), curd diameter (16.16cm), marketable curd weight (452.67g), net curd weight (361.43g) and yield/plot (3.94kg) was found from vermicompost treated plant is compared with Farmyard manure whereas lowest data recorded from control. Observing the results it can be stated that using of vermicompost treated plants gave better growth and yield contributing characters of Broccoli in contemporary with other treatments.


Author(s):  
M.I. Adebola, A.E. Esson

In this study, two accessions of Bambara groundnut were exposed to fast neutrons Americium-Beryllium (AmBe) source with flux of 1.5 ×104 ncm-2 s-1for different hours, and planted in a completely randomized block design (RCBD) with three replications to raise M1 generation. The data recorded were percentage germination, plant height, number of leaves, leaf length, leaf width, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight. There was variation in plant height, number of leaves, leaf length, leaf width, Days to 50% flowering, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight for Black accession. In the Cream accession, days to 50% flowering, number of pods per plant, fresh weight of plants, dry weight of plants, dry weight of pods, weight of seeds and100 seeds weight were significantly different. Treatment at 16 hours performed best for plant height, leaf length, number of leaves, weight of seed per plant and 100 seed weight in Black accession while Cream performed best at 8 hours exposure time. Fast neutron was observed to improve the performance of Bambara groundnut, thus can be used in breeding programme for Bambara groundnut.


Author(s):  
H.K. Sachan ◽  
Deeksha Krishna ◽  
A. Prasad

Background: Maize is used both as green cobs and for grains and it is in increasing demand throughout Fiji. Maize productivity is low and could be attributed primarily to climate, low soil fertility and inappropriate agronomic practices.Methods: The experiment was laid out on maize variety Nirala in a randomized block design with three replications and six treatments comprising NPK, poultry manure and its combinations. Parameters on plant height (cm), number of leaves per plant, leaf length, leaf width, stem girth, grain yield were recorded and collected data was analyzed statistically applying the analysis of variance technique. Result: Results reveled that among the all combinations, 100% NPK (300 kg/ha) along with PM @ 10 t ha-1 recorded higher plant height (204.00 cm), number of leaves per plant (12.87), maximum production efficiency (20.93 Kg/day/ha) and significantly superior (2511 kg/ha) grain yield and was most effective for improving growth and yield of maize.


2017 ◽  
Vol 9 (2) ◽  
pp. 143-150
Author(s):  
MA Rahman ◽  
M Imran ◽  
M Ikrum ◽  
MH Rahman ◽  
MG Rabbani

An experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh, during the period from October 2014 to March 2015 to study the effects of planting date and growth hormone on the growth and yield of cauliflower. The experiment consisted of two factors; Factor A: Three planting dates, such as P1: Planting on 1 November; P2: Planting on 15 November and P3: Planting on 1 December; Factor B: Four levels of Growth hormone, such as H0: No Hormone (control); H1: 10 ppm IAA (Indole-3 Acetic Acid); H2: 70 ppm GA3 (Gibberellic Acid) and H3: 10 ppm IAA + 70 ppm GA3. The experiment was laid out following Randomized Complete Block Design (RCBD) with three replications. In case of planting date, the highest plant height (63.26 cm), number of leaves per plant (24.13), leaf length (59.26 cm), leaf breadth (19.31 cm) at harvest, curd diameter (22.25 cm), marketable yield per hectare (28.11 t ha-1) were recorded from P2 and the lowest of those parameters were recorded from P3. In case of growth hormone the highest plant height (63.10 cm), number of leaves per plant (23.66), leaf length (59.05 cm), leaf breadth (18.98 cm) at harvest, curd diameter (22.39 cm), marketable yield per hectare (29.88 t ha-1) were recorded from H3 and the lowest of those perameters were recorded from H0. Combination of planting date and growth hormone the highest plant height (65.96 cm), number of leaves per plant (26.42), leaf length (63.64 cm), leaf breadth (20.92 cm) at harvest, curd diameter (25.75 cm), marketable yield per hectare (31.03 t ha-1) were recorded from planting on 15 November and 10 ppm IAA with 70 ppm GA3 (P2H3) and the lowest parameters (21.75 t ha-1) were recorded from planting on 1 December and no hormone (P3H0). It is apparent from the above results that the combination of planting on 15 November and 10 ppm IAA with 70 ppm GA3 (P2H3) was more productive from the other combinations.J. Environ. Sci. & Natural Resources, 9(2): 143-150 2016


Biocelebes ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 94-104
Author(s):  
Erawati S Halide ◽  
Asri Pirade Paserang

Potato (Solanum tuberosum L.) is one of crops which cultivated by farmers in Central Sulawesi. These potatoes are traditionally cultivated without going through the breeding process, so they have high variations. This study aims to obtain information on genetic diversity, heritability, and correlation between the characterics of potatoes from farmers in Napu who are still cultivating potato crops. Design used in this study was a randomized block design with two replications. The results showed that tuber color and harvest age had a small coefficient of genetic diversity. The heritability values ​​of tuber color are include in the small category, Diameter of stem, number of leaves, leaf length, leaf width, leaf color, tuber length, tuber diameter, tuber weight, number of tuber and harvest age in this study are include in the high category. So that, these characteristics can be derived and selection can be made. In Napu potatoes, the number of tubers was genetically positively (medium) correlated between plant height and stem diameters, plant height with leaf width, leaf length with leaf width, leaf length with tuber diameters and tuber diameters with the number of tubers. While the positive correlation was very significant (strong) between plant height and leaf length, and very significant (strong) negative correlation between leaf color and tuber length, so can be used as a selection criteria for increasing potato crops.


2020 ◽  
Vol 4 (2) ◽  
pp. 46-50
Author(s):  
Pisa C ◽  
Parwada C ◽  
Chiripanyanga S ◽  
Dunjana N

Production of leaf vegetables requires intensive soil nutrients management. A 3-year field experiment was carried out to assess effects of vermiculite application rates on the growth and yield of Brassica napus. The experiment was conducted during the 2016/17, 2017/18 and 2018/19 summer seasons at the Marondera University of Agricultural Sciences and Technology (MUAST) farm, Mashonaland East Province, Zimbabwe. Vermiculite was applied at five levels of 0 (control), 1, 2, 5 and 10 t ha-1 in a completely randomised block design (RCBD) with 3 replicates. Basal and top-dressing fertilizers were applied using the recommended rates in the study area. The B. napus leaf width, leaf length, fresh and dry matter yield, leaf nutrient concentration and N and P uptake were measured. Analysis of variance (ANOVA) at p = 0.05 was done to compare the effects of vermiculite application rates on growth and yield of B. napus. Growth parameters and yield of B. napus significantly (P <0.05) differed among the five levels of vermiculite. Application rates of 5 t ha-1 and 10 t ha-1 improved leaf width and length, fresh and dry matter yield of B. napus. Farmers may therefore apply 5 -10 t ha-1 of vermiculite in order to increase rape leaf yields. However, there is need for further researches to determine the optimum application rates of vermiculite are essential.


2021 ◽  
Vol 9 (4) ◽  
pp. 457-463
Author(s):  
Rameshwar Rai ◽  
◽  
Viet Yen Nguyen ◽  
Jong Hwa Kim ◽  
◽  
...  

This experiment was carried out to evaluate the Lilium leichtlinii var maximowiczii germplasm collected from the different natural habitats from all over Korea. In total 30 accessions were studied for nine traits viz. plant height, leaf length, leaf width, the numbers of flowers, flower diameter, length of outer tepal, width of outer tepal, the number of leaf burn, and days to flowering in randomized block design with three replications. The ANOVA revealed highly significant variability prevailing among the investigated genotypes for almost all studied traits (except leaf width). The higher estimated value of GCV, PCV, heritability (H2), and genetic advance as percent of the mean was obtained for the number of flowers and leaf burn. The moderate to high GCV and PCV coupled with higher heritability estimates (H2) and GAM were found for plant height and flower diameter. Progeny selection would be effective as the prevalence of additive gene effect for these traits. Besides, leaf width, leaf length, length of outer tepal, the width of outer tepal, and days to flowering traits were possessed moderate to low GCV and PCV value coupled with the moderate value of heritability estimate with the low level of GAM proved to be the prevalence of non-additive genetic effect thereby indicating the necessity of alternative breeding approach for these traits improvement and breeding scheme. For the former group of traits breeding hybridization and selection would be an effective method, and primarily mean performance of these traits would be very handy for the decision of selection.


2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Bewuket Gashaw

A field experiment was conducted on 2019 growing season to evaluate effects of different rates of nitrogen, phosphorus, and sulfur on growth and yield of garlic under supplemental irrigation. A local variety, Tuma, was used and treated with six rates of NPS (T1 (0 : 0 : 0 kg/ha NPS) (control), T2 (19 : 38 : 7 kg/ha NPS), T3 (28.5 : 57 : 10.5 kg/ha NPS), T4 (47.5 : 76 : 14 kg/ha NPS), T5 (47.5 : 95 : 17.5 kg/ha NPS), and T6 (57 : 114 : 21 kg/ha NPS)). The experiment was laid out in randomized complete block design and replicated three times. Data were collected for days to 50% emergence, plant height, leaf number, leaf length, bulb weight, and total bulb yield. SAS version 9.2 was used to analyze the data. Means were separated using Fisher’s test at 5% level of significance. All parameters were significantly P < 0.05 affected by the rates of NPS. The early days to 50% emergence (16) was recorded from T6 (57 : 114 : 21 kg/ha NPS), whereas the late days to 50% emergence was recorded from the control treatment (T1). Significantly highest leaf length (41.51 cm), leaf number (13.63), plant height (61.19 cm), bulb weight (39.44 g), and total bulb yield (14.91 ton ha−1) were recorded from T6 (57 : 114 : 21 kg/ha NPS). Therefore, from the result of this study, it can be concluded that the maximum total bulb yield of garlic was obtained with the application of 57 : 114 : 21 kg/ha NPS rate.


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