scholarly journals Daya Hasil Galur-Galur Kacang Tanah (Arachis hypogaea L.) Tahan Penyakit Bercak Daun di Kecamatan Ciranjang Kabupaten Cianjur Provinsi Jawa Barat

2013 ◽  
Vol 1 (1) ◽  
pp. 45
Author(s):  
Yudiwanti Wahyu ◽  
Dede Rosyana Budiman
Keyword(s):  
Key Words ◽  
Arachis Hypogaea ◽  
Leaf Spot ◽  
Block Design ◽  
High Yield ◽  
West Java ◽  
Arachis Hypogaea L ◽  
Resistant Lines ◽  
Randomized Complete Block Design

<p style="text-align: justify;">This research was aimed to evaluate the yield of 16 peanut leafspot resistant lines derived from cross between Gajah variety and GPNC-WS 4 line with four check varieties of peanut. The four check varieties of peanut consist of Gajah, Jerapah, Zebra Putih, and Sima. The experiment was carried out at Ciranjang District, Cianjur Regency, West Java, from February to May 2011. This research was arranged in randomized complete block design with three replications. Result showed that GWS 39 D, GWS 110 D, GWS 18 A1, GWS 79 A, and GWS 110 A2 were identified as lines with high yield. GWS 74 D, GWS 39 B, GWS 79 A, GWS 73 D, GWS 18 A1, GWS 134 A1, and GWS 110 A1 were identified as lines with high resistant level to leafspot of peanut. Two of sixteen lines had high yield and high resistant level to leafspot, they were GWS 79 A and GWS 18 A1.</p><p>Key words : peanut, yield evaluation, leaf spot resistant</p>

scholarly journals An F2 Yield Trial in Peanuts1

1981 ◽  
Vol 8 (1) ◽  
pp. 53-56 ◽  
Author(s):  
Ray O. Hammons ◽  
W. D. Branch
Keyword(s):  
Arachis Hypogaea ◽  
Seed Weight ◽  
Quantitative Traits ◽  
Block Design ◽  
Performance Characteristics ◽  
Meat Content ◽  
Arachis Hypogaea L ◽  
Yield Trial ◽  
Randomized Complete Block Design ◽  
100 Seed Weight

Abstract An F2 yield trial in peanuts (Arachis hypogaea L.) was conducted in 1978 to evaluate 25 entries in a six replicate randomized complete block design. Entries included progenies from sixteen intrasubspecific cross combinations and their representative parents: seven component lines of two U. S. cultivars, ‘Florunner’ and ‘Florigiant’, and two peanut introductions, ‘Makulu Red’ and ‘486 GKP’. Progeny and parental performances were determined for eight quantitative traits: yield, fancy pods, meat content, total sound mature kernels, other kernels, extra large kernels, damaged kernels, and 100 seed weight. Hybridization between adapted and unadapted genotypes led to a reduction in performance characteristics. However, cross populations were identified as having selection potential for improving yield and grade.

Evaluation of Preharvest Aflatoxin Contamination in Several Potentially Resistant Peanut Genotypes1

1995 ◽  
Vol 22 (1) ◽  
pp. 29-32 ◽  
Author(s):  
W. F. Anderson ◽  
C. C. Holbrook ◽  
D. M. Wilson ◽  
M. E. Matheron
Keyword(s):  
Drought Stress ◽  
Arachis Hypogaea ◽  
Block Design ◽  
Aflatoxin Contamination ◽  
Sources Of Resistance ◽  
Arachis Hypogaea L ◽  
Randomized Complete Block Design ◽  
Potential Sources ◽  
Drought Conditions ◽  
Field Plots

Abstract Peanut (Arachis hypogaea L.) is susceptible to aflatoxin contamination when pods are developing under drought conditions in the field. The development of cultivars which resist preharvest aflatoxin contamination would be advantageous, but has been limited by the lack of genes for resistance. Several genotypes have been suggested as potential sources of resistance. Conflicting results have been reported on how useful this resistance may be, and some of these sources have never been specifically examined for resistance to preharvest aflatoxin contamination. The objective of this study was to evaluate aflatoxin contamination under drought stressed conditions in potentially resistant peanut genotypes. Twelve peanut genotypes were planted in a randomized complete-block design in field plots in Yuma, AZ in 1991 and 1992. Ten of these genotypes were also planted in a randomized complete-block design in field plots in Tifton, GA in 1992. All plots were inoculated with Aspergillus inoculum and were subjected to 40 to 50 d of drought stress immediately prior to harvest. After harvest, aflatoxin contamination (ppb) of seed was measured. None of the genotypes included in this study were more resistant (P≤0.05) to preharvest aflatoxin contamination than Florunner. The results of this study indicate that it would be desirable to identify higher levels of resistance to preharvest aflatoxin contamination in peanut.

scholarly journals Evaluation of Leaf Spot Resistance and Agronomic Characteristics of Groundnut Advanced Breeding Lines

2016 ◽  
Vol 3 (3) ◽  
pp. 82-88
Author(s):  
Yudiwanti Wahyu ◽  
Achmad Achmad ◽  
Wahyu Junaedi
Keyword(s):  
Leaf Spot ◽  
Yield Loss ◽  
Block Design ◽  
Kernel Weight ◽  
Breeding Lines ◽  
Agronomic Characteristics ◽  
Resistant Lines ◽  
Randomized Complete Block Design ◽  
High Yields ◽  
Pod Number

Leaf spot is a major groundnut disease in Indonesia and worldwidewhich has the potential to cause a yield loss of up to 60%. The use of leaf spot resistant cultivars is an easy, economical, and environmentally friendly way in groundnut cultivation to maintain high yields. The objective of the research was to evaluate the yields of 16 groundnut lines which had been developed to be leaf spot resistant and high yielding. The research was conducted in 2010 – 2011 at the Bogor Agricultural University (IPB) experimental station in Cikarawang, Indonesia. A randomized complete block design with three replications was used in the experiment. The groundnut lines evaluated were crosses between “Gajah”, a cultivar which is known to be susceptible to leaf spot, and the resistant line GPNC- WS4. Four Indonesian cultivars “Gajah”, “Jerapah”, “Zebra” and “Sima” were used as control. The results showed that selected lines demonstrated better resistance to leaf spot compared to “Gajah”. Their agronomic characteristics, such as pod number, filled pod number, pod weight, and kernel weight, were not significantly different from the control cultivars. The results of this study have provided information on groundnut leaf spot resistant lines for further evaluation.

Canola seed yield and phenological responses to plant density

2016 ◽  
Vol 96 (1) ◽  
pp. 151-159 ◽  
Author(s):  
Gan Yantai ◽  
K. Neil Harker ◽  
H. Randy Kutcher ◽  
Robert H. Gulden ◽  
Byron Irvine ◽  
...  
Keyword(s):  
Seed Yield ◽  
Plant Density ◽  
Block Design ◽  
Positive Association ◽  
High Yield ◽  
Western Canada ◽  
Flowering Period ◽  
Canola Seed ◽  
Randomized Complete Block Design ◽  
Plant Densities

Optimal plant density is required to improve plant phenological traits and maximize seed yield in field crops. In this study, we determined the effect of plant density on duration of flowering, post-flowering phase, and seed yield of canola in diverse environments. The field study was conducted at 16 site-years across the major canola growing area of western Canada from 2010 to 2012. The cultivar InVigor® 5440, a glufosinate-resistant hybrid, was grown at five plant densities (20, 40, 60, 80, and 100 plants m−2) in a randomized complete block design with four replicates. Canola seed yield had a linear relationship with plant density at 8 of the 16 site-years, a quadratic relationship at 4 site-years, and there was no correlation between the two variables in the remaining 4 site-years. At site-years with low to medium productivity, canola seed yield increased by 10.2 to 14.7 kg ha−1 for every additional plant per square metre. Averaged across the 16 diverse environments, canola plants spent an average of 22% of their life cycle flowering and another 27% of the time filling seed post-flowering. Canola seed yield had a negative association with duration of flowering and a positive association with the days post-flowering but was not associated with number of days to maturity. The post-flowering period was 12.7, 14.7, and 12.6 d (or 55, 68, and 58%) longer in high-yield experiments than in low-yield experiments in 2010, 2011, and 2012, respectively. We conclude that optimization of plant density for canola seed yield varies with environment and that a longer post-flowering period is critical for increasing canola yield in western Canada.

Response of Groundnut (Arachis hypogaea L.) to Different Levels and Time of Phosphogypsum Nutrition

2021 ◽  
Author(s):  
Sheri Vaishnav ◽  
M.R. Ananda ◽  
H.M. Atheekur Rehaman ◽  
C. Seenappa ◽  
H.C. Prakasha
Keyword(s):  
Arachis Hypogaea ◽  
Block Design ◽  
Additional Source ◽  
Yield Attributes ◽  
Oilseed Crops ◽  
Sulphur Nutrition ◽  
Arachis Hypogaea L ◽  
Field Unit ◽  
Different Levels ◽  
Sulphur Uptake

Background: Groundnut is one of the most important oilseed crops of India. Improving productivity of groundnut to meet the domestic vegetable oil demand through balanced fertilization is the prime challenge lying before the agronomists in the country. With the aim of evaluating phosphogypsum as a source of sulphur nutrition in groundnut, a field experiment entitled “Response of groundnut (Arachis hypogaea L.) to different levels and time of phosphogypsum nutrition” was conducted at Agronomy field unit, University of Agricultural Sciences Bangalore, during kharif-2019. Methods: Experiment was laid out in randomised complete block design (RCBD) with eleven treatments, of which eight have different combinations of phosphogypsum applied as basal and in split (30 DAS) and one with gypsum as basal alone. Whereas, the remaining two treatments, without any additional source of sulphur are included for comparison. Result: Among eleven treatments, application of phosphogypsum @ 125 kg S eq ha-1 in split recorded highest yield attributes, pod yield (2063 kg ha-1), kernel yield (1418 kg ha-1) and sulphur uptake (11.33 kg ha-1). Which were on par with 100 kg S eq ha-1 in split (2014, 1380 and 10.39 kg ha-1, respectively). All other treatments recorded lower values with lowest in treatments without any additional sulphur source.

scholarly journals Effect of selection methods on seed potato quality in the following season

2021 ◽  
Vol 922 (1) ◽  
pp. 012015
Author(s):  
N Gunadi ◽  
A Pronk ◽  
A A Kartasih ◽  
L Prabaningrum ◽  
T K Moekasan ◽  
...  
Keyword(s):  
Seed Potato ◽  
Block Design ◽  
Growing Season ◽  
Selection Method ◽  
Selection Methods ◽  
Plant Selection ◽  
West Java ◽  
Potato Quality ◽  
Randomized Complete Block Design

Abstract Most potato farmers in Indonesia select the small tubers at harvest for planting in the following season, the so-called farmers’ practice (FP). This propagation method is cheap, but the small tubers may come from less healthy plants, which increases the build-up of diseases with accelerated yield decreases over the seasons. Alternatively, farmers may identify healthy plants within the growing season and select those for propagation, the so-called positive plant selection method (PPSM). An experiment was carried out to evaluate the effects of PPSM compared to FP on yields in the following season in the two main potato growing areas of West Java, i.e., Pangalengan and Garut. Generations G2 and G3 of cv. Granola and one generation of the imported cv. Atlantic were used. Selected seeds using PPSM and FP were planted in the second season in a randomized complete block design. Results show that yields of seeds selected through PPSM were significantly higher compared to seeds selected through FP, over both locations, on average, 7.4, 5.5 and 1.2 ton ha−1 for Granola G2 and G3, and the Atlantic, respectively. These yield increases represent an increase in the gross revenue of 30.8 to 51.8 million IDR ha−1 for Granola and 1.9 to 7.8 million IDR ha−1 for Atlantic at a farm gate price of 7,000 and 6,500 IDR kg−1, respectively. This study confirms that PPSM is superior to FP and improves the quality of the farms saved seeds.

scholarly journals Evaluation of nitrogen (Urea) on Zea mays L. under Balkh province climate

2020 ◽  
Vol 3 (1) ◽  
pp. 6-9
Author(s):  
Nasratullah Habibi ◽  
Friba Sikandari
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Block Design ◽  
High Yield ◽  
Randomized Complete Block Design ◽  
Yield And Yield Components ◽  
Effect On Yield

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.

scholarly journals Screening for Drought Tolerance through Root Morphology and Yield Characters of Groundnut (Arachis hypogaea L.) Genotypes

2021 ◽  
pp. 95-105
Author(s):  
K. Manoj Kumar ◽  
S. Vincent ◽  
A. Mothilal ◽  
M. Raveendran ◽  
R. Anandham ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Root System ◽  
Arachis Hypogaea ◽  
Block Design ◽  
Root Trait ◽  
Abiotic Factor ◽  
Worldwide Production ◽  
Arachis Hypogaea L ◽  
Drought Resistant ◽  
Yield Character

Drought affects the rainfed groundnut (Arachis hypogaea L.)  at different phases of development and it is the serious threats on groundnut productivity causing losses than any other abiotic factor under rainfed agriculture. In the world's semiarid regions, groundnut accounts for 90% of worldwide production. Drought mainly affects the pace and pattern of nutrient and water intake from the soil, affecting the architecture of the groundnut root system. Plant selections with desirable root trait have been a major focus in developing drought resistant Groundnut cultivars. In 2019, 60 groundnut genotypes were cultivated in root block design with two different soil water treatments, as well as in the field during the year under same circumstances. The purpose of this study was to see how different groundnut cultivars fared in terms of yield, yield contributing features, root characters, and their relationships with drought tolerance. Drought resistant genotypes had thicker roots, larger roots, and a deeper root system than susceptible genotypes. Recent series in groundnut genotypes of 60 numbers were sown during kharif 2019 (july-september) under rainfed condition (It includes life irrigation and rainfall received during cropping season). Groundnut genotypes were semi spreading with the duration of 110-120 days. Observation on root morphological character viz., roots length, root volume after 20 days of stress imposition of the crop and yield parameters were observed at the harvest. Among the 60 genotypes, 20 genotypes (VG 17008, VG 17046, VG 18005, VG 18102, VG 18077, VG 19572, VG 19709, VG 18111, VG19561, VG19576, VG 19620, VG 19681, VG 19688 etc.,) similarly, yield character were observed for 60 genotypes and all the genotypes given above recorded higher value in Total number of pods per plant, Number of double seeded pods per plant, Pod yield per plant, Harvest index and Total dry matter production. The methods used in this study identified correlation between yield character and root characters. Groundnut genotypes by assessing yield metrics and their relationship with root trait. These findings lay the groundwork for future study aimed at deciphering the molecular pathways underpinning Groundnut drought resistance.

Varietal performance of transplant aman rice under different hill densities

1970 ◽  
Vol 34 (1) ◽  
pp. 33-39 ◽  
Author(s):  
MAT Sohel ◽  
MAB Siddique ◽  
M Asaduzzaman ◽  
MN Alam ◽  
MM Karim
Keyword(s):  
Grain Yield ◽  
Key Words ◽  
Harvest Index ◽  
Block Design ◽  
Grain Weight ◽  
Row Spacing ◽  
Lower Yield ◽  
Straw Yield ◽  
Randomized Complete Block Design ◽  
Biological Yield

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to December 2004 to evaluate the effect of hill spacing on the performance of BRRI dhan40 and BRRI dhan41 as Transplant aman crop. The experiment consisted of five hill spacings viz., 5cm. 10cm, 15 cm, and 25 cm where row to row spacing of 25 cm was kept constant for all treatments. The experiment was laid out in randomized complete block design with four replications. The 25 cm x 5 cm hill spacing produced the tallest plant, highest total number of tillers/hill, bearing tillers/hill lowest number of non-hearing tillers/hill, grain yield and harvest index, while 25 cm x 5 cm hill spacing produced the highest number of sterile spikelets/panicle, straw yield and biological yield. BRRI dhan41 produced higher grain yield (4.7 t/ha) which was the contribution of higher number of grains/panicle and heavier grain weight. Lower yield (4.51 t/ha) was recorded in BRRI dhan40.Key Words: Varietal performance; T. aman rice; hill density.DOI: 10.3329/bjar.v34i1.5750Bangladesh J. Agril. Res. 34(1) : 33-39, March 2009

Sign in / Sign up

Export Citation Format

Share Document