scholarly journals Effects of Seed Rate and Row Spacing on Yield and Yield Components of Teff (Eragrostis tef [Zucc.] Trotter.) in Kiltu Kara Distirct of Western Ethiopia

Author(s):  
Shifera Kitata ◽  
Tolera Abera ◽  
Bhupesh Nandeshwar

Teff is a major staple cereal crop in Ethiopia. However, its productivity is limited due to lack of appropriate sowing methods and utilization of improper seed rate are among the major once. Hence, a field experiment was conducted in Kiltu Kara District to determine the effects of seed rate and row spacing on yield and yield components of teff. Four levels of seed rates (10, 15, 20 and 25 kg ha-1) and three rows spacing (15, 20 and 25cm) used and combined 12 treatments in total. The experiment was laid out as a randomized complete block design with a factorial arrangement in three replications. All yield components teff were significantly affected by different row spacing except straw yields of teff. The interaction of seed rate and row spacing showed significant difference for yield and yield components of teff. Significantly higher mean values of teff were found by the interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Significantly higher panicle length (36.9), number of tillers per plant (5), number of productive tillers per plant (4) of teff was recorded from interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Higher dry biomass (2591 kg ha-1) and grain yields (1267 kg ha-1) of teff were recorded from interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Mean of highest harvest index (49%) of teff was recorded from interaction of 10 kg seed rate ha-1 and 25cm row spacing as compared to others. Significantly higher straw yields (1488 kg ha-1) was recorded from interaction of 15kg seed rate ha-1 and 20 cm row spacing as compared to other treatment combinations. Therefore, the use of 10 kg seed rate ha-1 together with 25 cm row spacing was the optimum seed rate and row spacing and 10 kg ha-1 was profitable for the production of teff. To make definite conclusion further research for more seasons and location is required to give recommendation for the study area.

2018 ◽  
Vol 29 (2) ◽  
pp. 117-126
Author(s):  
SJ Mouri ◽  
MAR Sarkar ◽  
MR Uddin ◽  
UK Sarker ◽  
MS Kaysar ◽  
...  

An experiment was carried out at the agronomy field laboratory of Bangladesh Agricultural University, Mymensingh to evaluate the effect of variety and phosphorus on the yield and yield components of groundnut. The experiment comprising of two groundnut varieties viz. BARI Cheenabadam-8 and BINA Cheenabadam-6 and four levels of phosphorus viz. 0, 20, 40 and 60 kg P ha-1. The experiment was laid out in a randomized complete block design with three replications. The highest value of all the parameters e.g. leaf area index (2.02), dry matter (51.88 g plant-1), number of  primary branches plant-1 (10.70), number of  secondary branches plant-1 (13.85), number of pegs plant-1 (64.35), number of total pods plant-1 (44.50), weight of 100-pods (94.66 g), weight of 100-seeds (44.47 g), shelling percentage (81.84%), seed yield (2.48 t ha-1), pod yield (3.03 t ha-1), stover yield (6.92 t ha-1) and harvest index (30.45%) were recorded from  BARI Cheenabadam-8 applied with 60 kg P ha-1. The lowest value of all these parameters was found in BINA Cheenabadam-6 and with no applied phosphorus.  It can be concluded that BARI Cheenabadam-8 should preferably be fertilized with 60 kg P ha-1 to obtain the highest yield.Progressive Agriculture 29 (2): 117-126, 2018


Author(s):  
Ammar Hameed Madi ◽  
Jawad A. Kamal Al-Shibani

This study was conducted to investigate the effect of bacterial bio-fertilization A. chroococcum and P. putide and four levels of compost (0, 1, 2, 3) tons.h-1 on the leaves content of N.P.K elements. The experiment was carried out in one of the greenhouses of the College of Agriculture - University of Al-Qadisiyah during fall season 2018-2019. It designed in accordance with the Randomized Complete Block Design (RCBD) with three replicates in sandy loam soil. The means of treatments were compared with the least significant difference (LSD) at (5)% probability level. The results present that the treatments of A. chroococcum, P. putide and compost at (3) tons.kg-1 significantly increases the leaves content of K.P.K compared to all other treatments in the flowering stage (4.970, 0.5000, and 4.930) mg.kg-1, respectively. This treatment was followed by the effect of the treatment of A. chroococcum and compost at (3) tons.kg-1, which increases the values of all traits except the leaf content of (P). Bio-fertilizer with P. putide + A. chroococcum significantly increases the leaves' content of P.


2014 ◽  
Vol 24 (1-2) ◽  
pp. 29-37 ◽  
Author(s):  
TA Qurashi ◽  
MA Salam ◽  
M Jannat ◽  
MG Rabbani

An experiment was carried out at Bangladesh Agricultural University, Mymensingh to evaluate the effect of urea super granule (USG) as a source of nitrogen on the yield and yield components of transplant Aman rice cv. BRRI dhan39, BRRI dhan46 and BINA dhan7. Five levels of N (viz., 0, 60, 120 kg ha-1 as prilled urea and 60 and 120 kg ha-1 as USG) were taken as experimental treatments. The experiment was laid out in a randomized complete block design with three replications. Plant height, effective tillers hill-1, grains panicle-1 and grain yield varied significantly due to different cultivars. All the yield and yield components except 1000-grain weight were influenced significantly by the levels of nitrogen fertilizer. The highest grain yield (4.82 t ha-1) was recorded in BINA dhan7 and the lowest one (4.30 t ha-1) was recorded in BRRI dhan39. Nitrogen @ 120 kg ha-1 as USG performed the best among the treatments in respect of yield and yield components of rice. The highest grain yield (5.46t ha-1) was obtained from BINA dhan7 with 120 kg N ha-1 as USG which was statistically identical with 60 kg N ha-1 as USG. A considerable amount (31.25%) of prilled urea (PU) nitrogen could be saved by using USG. It may be concluded that USG could be used as N management to achieve better nitrogen use efficiency in reducing N loss than the PU.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19095 Progress. Agric. 24(1&2): 29 - 37, 2013


Author(s):  
Nasratullah Habibi ◽  
Friba Sikandari

An experiment was conducted to evaluate effect of urea fertilizer on yield and yield components of Zea mays L. Using Randomized Complete Block Design (RCBD) split plots in three replications in agricultural research farm of Balkh University by 2019. Doses of urea used in this experiment were 0, 80, 160 and 240 kg ha-1 , respectively. It has been found that amount of nitrogen fertilizer (urea) had significant effect on yield of maize at p<0.05. The higher level of nitrogen caused the higher grain yield, number of kernels per ear, the number of grains per ear row, ear diameter, cob length, grain per plant and plant height. As a result 7.76 ton ha-1 was recorded as high yield while 240 kg ha-1 urea was used, and 5.12 ton ha-1 was recorded as low yield in treatment one with 0 kg ha-1 of nitrogen fertilizer. Finally, as a result using 240 kg ha-1 nitrogen fertilizer is recommended.


2016 ◽  
Vol 17 (1) ◽  
pp. 19
Author(s):  
Rini Hermanasari ◽  
NFN Supartopo ◽  
B. Kustianto

<p>Phenotypic Performance of Yield and Yield Component of Rice Promising Lines at Tidal Swamp Area in Karang Agung, South Sumatra. An experiment was conducted in Karang Agung, in April until September 2007. The experiment aimed at evaluating phenotypic performance of yield and yield components of promising lines in tidal swamp rice field. The experiment was arranged in a Randomized Complete Block Design with 16 treatments and four replications. The promising lines tested were B9858-KA-55, B9833C-KA-14, B9852E-KA-66, B5524G-SM-61-2-1, B7003D-MR-24-3-1, KAL9414F-MR-2-KN-0, KAL9418F-MR-2-KN-0, B10214FTB- 7-2-3, IR70213-9-CPA-12-UBN-2-1-3-1, IR70215-2- CPA-2-1-B-1-2. The check varieties used were IR42, Batanghari and Lembu Sawah. The results of this experiment showed that IR61242-3B-B-2 had better performance among varieties and promising lines tested, as well as giving the highest yield potential. Meanwhile, the line B10214F-TB-7-2- 3 had better performance of number of filled grain, and 1.000 grain weight. It also showed higher yield potential compared to IR42 and Batanghari. The line KAL9418F-MR-2-KN-0 had better performance of plant height, 1.000 weight grain and harvest age, but showed lower yield potential compared to those other check varieties.</p><p> </p><p><strong>Abstrak</strong></p><p>Percobaan dilaksanakan di KP Karang Agung, Sumatera Selatan pada bulan April sampai September 2007. Penelitian bertujuan untuk mendapatkan informasi tentang penampilan fenotipik karakter hasil dan komponen hasil dari galur-galur harapan padi rawa di lahan pasang surut Karang Agung. Percobaan ditata dalam rancangan acak kelompok dengan 16 perlakuan dan empat ulangan. Galur-galur yang diuji di antaranya B9858-KA-55, B9833C-KA-14, B9852E-KA-66, B5524GSM- 61-2-1, B7003D-MR-24-3-1, KAL9414F-MR-2-KN-0, KAL9418F-MR-2-KN-0, B10214F-TB-7-2-3, IR70213-9- CPA-12-UBN-2-1-3-1, dan IR70215-2-CPA-2-1-B-1-2. Varietas pembanding digunakan IR42, Batanghari, dan Lembu Sawah. Hasil penelitian menunjukkan bahwa galur IR61242- 3B-B-2 memiliki penampilan lebih baik dari varietas pembanding untuk karakter tinggi tanaman, jumlah gabah isi, bobot 1.000 butir gabah, dan potensi hasil. Galur B10214F-TB-7-2-3 memberikan penampilan lebih baik untuk karakter jumlah gabah isi, bobot 1.000 butir, dan potensi hasil lebih tinggi daripada pembanding IR42 dan Batanghari. Galur KAL9418F-MR- 2-KN-0 memiliki penampilan lebih baik untuk karakter bobot 1.000 butir, tinggi tanaman, dan umur panen, tetapi potensi hasilnya lebih rendah dari ketiga varietas pembanding.</p>


1969 ◽  
Vol 96 (3-4) ◽  
pp. 165-181 ◽  
Author(s):  
Raphael W. Colbert ◽  
Elide Valencia ◽  
James S. Beaver

Forage sorghum [Sorghum bicolor L. Moench 'Brown midrib' (BMR)] and annual legumes lablab [Lablab purpureus L. 'Rongai' (L)] and mucuna [Mucuna pruriens L. 'Vine 90 d' (M)] are suitable fodder for the dairy industry in Puerto Rico, but BMR harvested at 90 days, usually has low crude protein (CP, 6%) content, which limits its usefulness. There is the possibility of increasing the CP by intercropping legumes with BMR, but this option has been only slightly investigated. This study proposes to compare BMR in monoculture and in intercropping with 'Rongai' (SL) and 'Vine 90 d' (SM), in addition to L and M in monoculture, in terms of total leaf mass (FM) and botanical components (sorghum, legumes and weeds) and chemical (CP and fiber fractions) at two harvest times. The experimental plots (25 m2) were sown in February and August 2008 in a randomized complete block design with five replications. At each harvest time, 2 m2 MF area was sampled 90 days after sowing. Data were analyzed by using the MIXED procedure of SAS and mean separation tests were performed by using F-protected LSD at 95% level of confidence. No significant differences (combining fodder botanical component and weeds) were detected for the total MF between BMR and BMR associated with legumes in monoculture, with mean values of 8.94, 8.81, and 8.42 Mg/ha for BMR-'Rongai', BMR-'Vine 90 d', and BMR, respectively. Overall, there was no significant difference in MF between May and August (8.1 vs. 7.5 Mg/ha). 'Rongai' yield (Mg/ha) did not change between May and August (3.6 vs. 3.0) but was lower in the intercrop (2.74) than in monoculture (3.94). 'Vine 90 d' had the lowest yield of 2.8 and 1.3 Mg/ ha in May and August, respectively. No differences (P > 0.05) in NDF and ADF content between BMR and BMR-'Rongai'-'Vine 90 d', whose values were 60.1 and 63.9% and 40.1 and 46.5%, respectively. However, differences (P < 0.05) were found in CP content between monoculture and intercropping, with values of 14.1, 11.1, and 6.0% for 'Rongai', 'Vine 90 d', and sole BMR, respectively, whereas the BMR-'Rongai' and BMR- 'Vine 90 d' CP were 9.8 and 9.1%, but these last values exceed by three units the percentage in BMR. In conclusion, BMR intercropped with 'Rongai' and 'Vine 90 d' improved the forage chemistry and helps to control weeds while favoring the performance of desirable botanical components.


2020 ◽  
Vol 9 (1) ◽  
pp. 73-77
Author(s):  
Hasriadi Mat Akin ◽  
Emi Lidya Astri ◽  
Maimun Barmawi

Segregation pattern of the Soybean Stunt Virus resistant character and genetic diversity of F2:3 families derived from crosses between Orba and B3570.  Soybean stunt disease caused by SSV (Soybean Stunt Virus) is the most destructive soybean disease in Indonesia. This research was conducted from October 2005 to June 2006 at experiment station of Lampung University.  The aims of this research were to evaluate the segregation of resistant characters and total genetic diversity of eight populations of F2:3  families. Experiment was arranged in a randomized complete block design with three replications. The resistance was evaluated based on the score of disease severity.  The results showed that the resistant characters segregate 1:2:1 to susceptible, moderately resistant, and resistant, respectively based on  the segregation pattern. The resistant character was controlled by single gene and the action of the gene is noncompletely dominant gene.  Eight populations of F2:3 families have high diversities on the yield and yield components.


2020 ◽  
pp. 25-33
Author(s):  
Kennedy Masamba ◽  
Austin T. Phiri ◽  
Obed Mwenye ◽  
Margaret Chiipanthenga ◽  
Felix Chipojola ◽  
...  

In Malawi the demand of the use of mineral acidifying fertilizer by farmers for sustenance of high crop yields is increasing. The soaring demand is a pointer to the loss of humic substances in the soil and the resultant poor soil health. There is potential however to reduce the amount of mineral fertilizer used by the farmers and retain the applied nutrients within the plants rooting zone for increased use efficiency and productivity. This could be achieved through the combined application of humate based fertilizers with mineral fertilizer. Therefore, an experiment was conducted to evaluate the effect of different rates of NPK and humate based fertilizer (HBF) combinations on potato yield and yield components at Tsangano, Bembeke and Dwale Extension Planning Area (EPA) in the 2016/2017 cropping season. Ten treatments were laid out in a randomized complete block design (RCBD). Baseline soil data were collected and subjected to standard laboratory analytical procedure. Agronomic data collected in the experiment were analyzed in Genstat Discovery Edition 4 and were subjected to analysis of variance (ANOVA) at 95% level of confidence. The means were separated by the least significant difference (LSD0.05). Laboratory analysis showed that soils were strongly acid at the three sites with low amount of N, P, K except for Dwale EPA which had high P and medium content of K. Furthermore, results showed that different NPK and HBF combination significantly influenced potato tuber yield and yield components at the three sites. The recommended fertilizer rate of NPK 8:18:15 + 6S at 250 kg ha-1 + 60 kg N ha-1 produced the highest tuber yield at Tsangano (20,729 kg ha-1) and Bembeke (5,189 kg ha-1). At Dwale EPA, application of NPK 8:18:15 + 6S at 250 kg ha-1 produced the highest yield (13,956 kg ha-1). Nevertheless, different combinations of NPK and HBF fertilizer (Treatments 7, 8, 9 and 10) also gave comparably high yields and high number of big tubers. Therefore, the combined application of mineral fertilizer and humate based fertilizer potentially could increase potato yield in Malawi, sustainably. More studies however are required in order to confirm the results.


2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Hayelom Berhe ◽  
Ashagrie Zewdu ◽  
Kebebew Assefa

A field experiment was conducted to assess the influence of N fertilizer rates on growth, grain yield and yield components of Tef [Eragrostis tef (Zucc.) Trotter], in 2017 main cropping season. Three tef varieties (Kora, Boset and Asgori) and five Nitrogen rates (0, 30, 60, 90 and 120kg N ha-1) were used in Randomize Completed Block Design with three replications with the same dose of Triple Super Phosphate. The total and productive tiller number were highly (P<0.01) significantly affected by varieties. The control plot had maximum days to heading and this may be due to nitrogen fixation may exist and its availability may be deficient in the soil. The less response to the N rate may be due to variability of fertility or soil N content, and genetically difference between varieties. From means of varieties, the early flowerings of Boset and Asgori varieties were 101.4 and 103.79 days to maturity, respectively, but Kora (108.9 days) was late matured. Kora had maximum plant height (135.9cm) and panicle length (56.07cm) followed by Boset (115.1cm) and (42.49cm) respectively. The lodging index was affected by N rates and Kernel weight was highly significantly (P<0.01) affected only by varieties. The highest mean of thousand kernel weight (0.3387) was noted from Asgori variety. The grain yield was decreased with N rates and a better grain yield was obtained at 60-90kg N ha-1. Overall N rates indicated that, both Kora (1800) and Boset (1883) had a better grain yield in kg ha-1, but Asgori had lowest grain yield (1560kg ha-1). Based on the economic point of view, it would be more profitable to use 60kg N ha-1 N rates.


2017 ◽  
Vol 9 (1) ◽  
pp. 143-147
Author(s):  
Amir Taher RAH KHOSRAVANI ◽  
Cyrus MANSOURIFAR ◽  
Seyed Ali Mohammad MODARRES SANAVY ◽  
Kamal Sadat ASILAN ◽  
Hamed KESHAVARZ

In order to determine the effects of sowing date on physiological characteristics, yield and yield components of six sweet maize hybrids, an experiment was arranged in split plot based complete randomized block design with three replications. Sowing date in two levels (15 June and 1 July) and sweet maize hybrids in six variants (‘Chase’, ‘Temptation’, ‘Challenger’, ‘Basin’, ‘Obsession’ and ‘Ksc403su’) were the treatments. Results of ANOVA revealed significant difference of sowing date and sweet maize hybrids on the number of days for tassel emergence, number of days to anthesis, plant height, cob height, stem diameter, plant dry weight, cob dry weight, number of grain rows, length flowers, number of leaf above the cob, raffinose content of grain and grain yield. Mean comparisons showed that the highest grain yield was obtained for ‘Basin’ variety and it was obtained from the crop established on the 15th of June as planting date. In temperate regions, maize potential productivity seems to be more limited by the amount of solar radiation available around silking (determinant of grain set) than during grain filling (determinant of grain weight).


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