Application of linear models for estimation of leaf area in soybean [Glycine max (L.) Merr]

2011 ◽  
Vol 49 (3) ◽  
Author(s):  
E. Bakhshandeh ◽  
B. Kamkar ◽  
J. T. Tsialtas
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Linear Models ◽  
Glycine Max L

SOYBEAN FOLIAGE CONSUMPTION BY PSEUDOPLUSIA INCLUDENS (WALKER) (LEPIDOPTERA: NOCTUIDAE) LARVAE INFECTED WITH NUCLEAR POLYHEDROSIS VIRUS1,2

1987 ◽  
Vol 22 (3) ◽  
pp. 212-223 ◽  
Author(s):  
M. Z. Alam ◽  
W. C. Yearian ◽  
S. Y. Young ◽  
A. J. Mueller
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Nuclear Polyhedrosis Virus ◽  
Pseudoplusia Includens ◽  
Mortality Level ◽  
Total Leaf Area ◽  
Larval Instars ◽  
Glycine Max L ◽  
Nuclear Polyhedrosis ◽  
Lepidoptera Noctuidae

Consumption of greenhouse and field grown ‘Bragg’ soybean, Glycine max (L.) Merrill, foliage was determined for Pseudoplusia includens (Walker) larvae treated with varying dosages of Pseudoplusia nuclear polyhedrosis virus to produce different mortality levels. Uninfected P. includens larvae consumed an average of 158.3 and 78.7 cm2 of greenhouse and field grown soybean foliage, respectively. More than 84% of the total leaf area consumed was by the final two larval instars. The amount of foliage consumed by larvae infected as first (greenhouse and field) or second (greenhouse) instars was significantly reduced with increasing NPV mortality level. Foliage consumption by larvae infected as second (field) and third (greenhouse and field) instars at all dosage levels was significantly reduced when compared to the untreated checks, but differences in foliage consumption at the two lower mortality levels were not significant. Frass produced by infected and uninfected larvae was significantly correlated with the amount of greenhouse or field grown foliage consumed.

scholarly journals Effect of water hyacinth compost on the morpho-physiological parameters of Soybean (Glycine max l.)

2021 ◽  
Vol 2 (1) ◽  
pp. 084-095
Author(s):  
Ogbuehi HC ◽  
Ibe PK
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Plant Height ◽  
Water Hyacinth ◽  
Seed Weight ◽  
Dry Weight ◽  
Effect Of Water ◽  
Shoot Dry Weight ◽  
Glycine Max L ◽  
Number Of Leaves

A pot experiment was conducted under rainfed condition to study the effect of water hyacinth compost on the morpho-physiological parameters of soybean (Glycine max L.) at the Teaching and Research Farm of Faculty of Agriculture and Veterinary Medicine, Imo State University, Owerri. The treatments were control (T1) 100g (T2), 150g (T3) and 200g (T4) of water hyacinth compost and replicated four times. The treatments were arranged in Complete Randomized Design (CRD). The parameters measured were plant height, number of leaves, leaf area (cm2), leaf area index, relative growth rate (RGR), Net assimilation rate (NAR), shoot dry weight(g), yield and yield components (Number of pods, pods weight, 100 seed weight). The results obtained indicated that T3 significantly produced highest plant height (57.6cm) compare to control. While it was observed that T4 (200g) significantly produced the highest number of leaves (233.25), leaf area (631.80cm2), shoot dry weight (15.445g), number of pods (129.75), pod weights (25.38g) seed weight (7.23g) and yield (0.72kg/ha) relative to control and other treatment levels. Root parameters were also significantly improved by the rates of water hyacinth application compared to control. It will be worthy to note that there was no nodulation perhaps that was why the yield was poor. The results showed that soybean growth can effectively be improved with incorporation of water hyacinth into soil.

scholarly journals PENGARUH PEMBERIAN PUPUK CAIR BIO URINE SAPI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KEDELAI (Glycine max L.)

AGRICA ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 96-105
Author(s):  
Murdaningsih Murdaningsih ◽  
Marsianus Nate Ugha
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Harvest Index ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Soybean Plant ◽  
Optimum Dosage ◽  
Randomized Block Design ◽  
Glycine Max L

This research aims to know the effect as well as the optimum rates of manure of urine cow bio to the growth and yield of the soybean plant. The design used in this study was Randomized Block Design and the treatment used is U0 (without bio urine manure), U1 (1375 litres of bio urine manure ha-1 or 550 ml plots-1), U2 (bio urine manure of 2750 litre ha-1 or 1100ml plots -1), U3 (bio urine manure 4125 litre ha-1 or 1650 ml plot-1), and U4 (bio urine manure of 5500 litre ha-1 or 2200 ml plot-1). Variable observation in this study is the height of the plant 33.8 cm, leaf number 2.90 strands, leaf area 1.17cm2, the weight of fresh residues tan-114,74 gr, dry oven weight of residue tan-1 15.50 gr, dry oven weight of residue  ha-1 15.50kg, the number of pods 9.44 soybean, weight of 100 grain of soybean 1 0.91 gr, the weight of the seed tan-110.30 gr, seed dry weight ha-110, 30 kg, harvest index of 4.88 and optimum dosage of the manure of urine cow bio is 5500 litres ha-1 can increase the growth and yield of soybeans.

scholarly journals Anatomical and Molecular Responses of Soy Bean (Glycine Max (L.) Merr.) Due to Salinity Stresses

Molekul ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. 45 ◽  
Author(s):  
Juwarno Juwarno ◽  
Siti Samiyarsih
Keyword(s):  
Glycine Max ◽  
Molecular Marker ◽  
Leaf Area ◽  
Salinity Stress ◽  
Control Block ◽  
Molecular Responses ◽  
Glycine Max L

Current study was aimed to explore both anatomical and molecular responses of 3 soy bean cultivars (Mahameru, Slamet and Detam) which was given salinity stress. Data of the Mahameru cultivar showed that the widest  stomata  on upper epiderm 11.38 µm, the thickest upper epiderm was 10.71µm, but  the thickest of lower epiderm was only 9.98 µm, the highest density of stomata on lower epiderm was 13.66 per mm2 leaf area, and the thickest mesophyll was 110.37 µm. Molecular marker applying OPA-2 primer with RAPD technique showed the Detam and Slamet cultivars were having different bands one to each other even with the Mahameru cultivar. While the application of OPA-4 primer with the same technique showed there were no genetically different on Mahameru cultivar between control and  treatment 80 mM NaCl. The OPA-8 primer showed that the control block of Slamet cultivar  was different from either control block of others as well as treatment block of 80 mM NaCl. The use of OPA-18 primer showed that the Slamet cultivar of the control block  and so its 80 mM NaCl block was different from Detam and Mahameru, where the 500th base of Slamet cultivar did not have DNA band.

scholarly journals Nodulation, Growth and Yield of Soybean [Glycine max (L.) Merrill] as Influenced by Biofertilizer and Inorganic Fertilizers in Assosa Zone, Western Ethiopia

2021 ◽  
Author(s):  
Abiyot Abeje ◽  
Getachew Alemayehu ◽  
Tesfaye Feyisa
Keyword(s):  
Glycine Max ◽  
Grain Yield ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Growth And Yield ◽  
Inorganic Fertilizers ◽  
Area Index ◽  
Plant Leaf ◽  
Glycine Max L ◽  
Western Ethiopia

Background: The productivity of soybean in Assosa Zone particularly in Assosa and Bambassi districts is very low due to poor soil fertility management practices which resulted in severe soil acidity and low N-fixing inoculant in the soil. Hence, this experiment was conducted to evaluate the influence of biofertilizer and inorganic fertilizers on nodulation, growth and yield of soybean [Glycine max (L.) Merrill]. Methods: During the period 2019-2020 factorial combinations of four levels of biofertilizer inoculants [without inoculant (B1), SB12 inoculant (B2), MAR1495 inoculant (B3) and SB12 plus MAR1495 inoculants (B4); and four inorganic fertilizer types NP (F1), NPS (F2), NPB (F3) and NPSB (F4) at their recommended rates for soybean] were laid out in a randomized complete block design (RCBD) with three replications in Assosa and Bambassi districts, Assosa Zone, Western Ethiopia. Number of effective nodules per plant, leaf area index and grain yield were collected following the standard procedures and were analyzed using SAS software version 9.1.3 and significant mean differences were separated using Duncan’s multiple range test (DMRT) at 5% significance level. Result: Number of effective nodules per plant, leaf area index and grain yield were highly significantly (P less than 0.01) affected by the interactions of biofertilizer and inorganic fertilizers at both locations and years. Thus, the maximum grain yield (2621.67 kg) was obtained from (SB12+MAR1495) + NPSB at Assosa and the maximum grain yield (2460.20 kg) was obtained from SB12+NPS at Bambassi. Hence, (SB12+MAR1495) + NPSB and SB12+NPS are recommended for higher soybean grain yield for Assosa and Bambassi districts and similar agro-ecologies, respectively.

scholarly journals Modeling leaf area development in soybean (Glycine max L.) based on the branch growth and leaf elongation

2019 ◽  
Vol 23 (3) ◽  
pp. 247-259 ◽  
Author(s):  
Satoshi Nakano ◽  
Larry C. Purcell ◽  
Koki Homma ◽  
Tatsuhiko Shiraiwa
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Leaf Elongation ◽  
Branch Growth ◽  
Glycine Max L ◽  
Area Development ◽  
Leaf Area Development

scholarly journals Perbandingan pengukuran luas daun kedelai dengan metode gravimetri, regresi dan scanner

Kultivasi ◽  
2018 ◽  
Vol 16 (3) ◽  
Author(s):  
Aep Wawan Irwan ◽  
Fiky Yulianto Wicaksono
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Glycine Max L

Luas daun merupakan salah satu parameter penting yang diperlukan untuk mengetahui pertumbuhan tanaman kedelai (Glycine max L.), oleh karena itu diperlukan teknik pengukuran yang cepat dan tepat. Dengan mengetahui luas daun, maka akan diketahui indeks luas daunnya dengan cara membaginya dengan luas kanopi tanaman. Selain pengukuran dengan menggunakan Leaf Area Meter,  pengukuran dengan menggunakan metode dasar (gravimetri) masih sering dipergunakan. Penggunaan metode lainnya adalah dengan cara regresi dan penggunaan alat scanner, dimana metode tersebut mempunyai kelebihan dan kekurangannya masing-masing. Untuk pelaksanaan pengukuran luas daun kedelai ini digunakan tanaman kedelai kultivar Anjasmoro yang ditanam di polybag di Kebun Percobaan Hidroponik Fakultas Pertanian UNPAD Jatinangor dari bulan September sampai dengan bulan November 2016.  Setelah dilakukan perhitungan, dapat disimpulkan bahwa metode regresi dan metode scanner mendapatkan hasil pengukuran luas daun kedelai yang lebih teliti dibandingkan dengan metode gravimetri. Perlu disarankan penggunaan leaf area meter untuk kalibrasi terhadap tingkat ketelitian dari ketiga metode yang diuji. Kata kunci : luas daun, kedelai, gravimetri, scanner

scholarly journals APLIKASI LAPANG PUPUK HAYATI VP3 DIBANDINGKAN DENGAN EMPAT MACAM PUPUK HAYATI YANG BEREDAR DI PASARAN TERHADAP PRODUKSI TANAMAN KEDELAI (Glycine max L.)

2021 ◽  
Vol 5 (1) ◽  
pp. 26
Author(s):  
Putri Nur Azizah ◽  
S Sunawan ◽  
Novi Arfarita
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Seed Weight ◽  
Glycine Max L ◽  
Total Seed

The study was undertaken to determine the effect of application VP3 biofertilizercompared to biofertilizers circulating in the market on the production of soybean (Glycinemax L.) in the field. The research was conducted on land in Bumi Asri Housing, DauDistrict, Malang Regency and the Applied Laboratory, Faculty of Agriculture, MalangIslamic University from June to October 2019. The research used a Randomized BlockDesign (RBD) with 6 treatments and was repeated 3 times. The results showed that theapplication of VP3 biofertilizer when compared with biofertilizers circulating in the marketin general gave better results to the growth and production variables of soybean in thefield. This was seen to be especially significant on the growth variable the leaf area perplant, total seed weight per plant, and total seed weight per plot.Keywords: VP3 Biofertilizer, Biofertilizers Circulating in the Market, Soybean

scholarly journals Perbandingan pengukuran luas daun kedelai dengan metode gravimetri, regresi dan scanner

Kultivasi ◽  
2018 ◽  
Vol 16 (3) ◽  
Author(s):  
Aep Wawan Irwan ◽  
Fiky Yulianto Wicaksono
Keyword(s):  
Glycine Max ◽  
Leaf Area ◽  
Glycine Max L

Luas daun merupakan salah satu parameter penting yang diperlukan untuk mengetahui pertumbuhan tanaman kedelai (Glycine max L.), oleh karena itu diperlukan teknik pengukuran yang cepat dan tepat. Dengan mengetahui luas daun, maka akan diketahui indeks luas daunnya dengan cara membaginya dengan luas kanopi tanaman. Selain pengukuran dengan menggunakan Leaf Area Meter,  pengukuran dengan menggunakan metode dasar (gravimetri) masih sering dipergunakan. Penggunaan metode lainnya adalah dengan cara regresi dan penggunaan alat scanner, dimana metode tersebut mempunyai kelebihan dan kekurangannya masing-masing. Untuk pelaksanaan pengukuran luas daun kedelai ini digunakan tanaman kedelai kultivar Anjasmoro yang ditanam di polybag di Kebun Percobaan Hidroponik Fakultas Pertanian UNPAD Jatinangor dari bulan September sampai dengan bulan November 2016.  Setelah dilakukan perhitungan, dapat disimpulkan bahwa metode regresi dan metode scanner mendapatkan hasil pengukuran luas daun kedelai yang lebih teliti dibandingkan dengan metode gravimetri. Perlu disarankan penggunaan leaf area meter untuk kalibrasi terhadap tingkat ketelitian dari ketiga metode yang diuji. Kata kunci : luas daun, kedelai, gravimetri, scanner

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