scholarly journals Karakterisasi Beberapa Sifat Kuantitatif Plasma Nutfah Gandum (Triticum aestivum. L)

2007 ◽  
Vol 11 (2) ◽  
pp. 49
Author(s):  
Sri Gajatri Budiarti

<p>The aim of the experiment were to rejuvenate and characterize of wheat germplasm. Eighty nine genotypes planted at Kuningan Field Research Instalation, West Java from June to October 2002. Plot size for each genotypes 3 x 1 m2 with spacing 25 x 10 cm. Seeds were planted with 2 seed per hole and thinned out to one plant. Several agronomic characters were observed: date of flowering, date of maturing, plant height, number of productive tiller per hill, seed weight per hill and yield per plot. The results showed that: date of flowering (mean 60.9 days with range 48-77 days), date of maturity (mean 102.7 days with range 87-119 days), plant height (mean 72.4 cm, range 53.5-88.7 cm), number of productive tiller per hill (mean 9.71, range 4.9-24.0), seed weight per hill (mean 11.96 g, range 5.3-34.5 g) and seed yield per plot (200.0- 2624.5 g). Seventeen genotypes have date of flowering &lt;54.3 days, some of them were H40, H80, V219, and V132. There were 25 genotypes have date of harvesting ranged 87-98 days, some of them were H40 (87 days), H85 (91 days), H90 (91 days). There were 16 genotypes have plant height &lt;65.2 cm, some of them were C3 (53.5 cm), C7 (58.4 cm), C14 (59.1 cm). Whereas the highest was C10 (88.7 cm). Nine genotypes have number of productive tiller per hill &gt;17.5, some of them were C8 (23.6), C27 (22.7) and the greatest number was C28 (24.0). Sixty six genotypes have number of productive tiller per hill, ranged 4.9-11.2, some of them were: C34 (4.9), C24 (5.2), H85 (5.6). Seed weight per hill showed that 60 genotypes have seed weight &lt;12.6 g, for example: H71 (5.3 g), H40 (6.6 g), C132 (5,4 g), C34 (6,7 g), whereas the heaviest was C28 (34.5 g). Sixteen three two genotypes that have yield per plot &gt;2000 g were V192 (2016.0 g), and V167 (2624.5 g).</p><p> </p><p><strong>Abstrak</strong></p><p>Tujuan penelitian adalah merejuvenasi dan mengkarakterisasi plasma nutfah gandum, terutama morfologi dan agronomi. Penelitian dilaksanakan pada Juni hingga Oktober 2002 di Inlitpa Kuningan, Jawa Barat. Sejumlah 89 genotipe gandum ditanam pada petak berukuran 3 x 1 m2, dengan jarak tanam 25 x 10 cm, secara tugal, dua biji per lubang, dan diperjarang menjadi satu tanaman. Pemupukan dilakukan pada 1 MST secara alur di samping barisan tanaman. Pupuk dasar terdiri dari 100 kg urea, 200 kg SP36, dan 50 kg KCl/ha. Sejumlah 100 kg urea/ha diberikan lagi pada umur 5 MST dan 9 MST. Karakterisasi dilakukan terhadap umur berbunga, umur masak, tinggi tanaman, jumlah anakan produktif per rumpun, bobot biji per rumpun, dan hasil biji per petak. Umur berbunga ratarata 60,9 hari dengan rentang 48-77 hari, umur masak 102,7 hari dengan rentang 87-119 hari, tinggi tanaman 72,4 cm dengan rentang 53,5-88,7 cm, jumlah anakan produktif per rumpun 9,71 dengan rentang 4,9-24, bobot biji per rumpun 11,96 g dengan rentang 5,3-34,5 g, dan hasil biji per petak berkisar antara 200-2624,5 g. Genotipe yang mempunyai umur berbunga &lt;54,3 hari di antaranya adalah H40, H80, V219, dan V132. Genotipe yang mempunyai umur masak 87-98 hari di antaranya adalah H40, H85, dan H90. Genotipe dengan tinggi tanaman &lt;65,2 cm di antaranya adalah C3, C7, dan C14. Genotipe dengan jumlah anakan produktif per rumpun &gt;17,5 di antaranya adalah C28, C8, C27. Genotipe yang mempunyai jumlah anakan produktif 4,9-11,2 di antaranya adalah C34, C24, dan H85. Genotipe yang mempunyai bobot biji &lt;12,6 g, di antaranya adalah H71, H40, V132, C34, dan yang terberat adalah genotipe C28. Dua genotipe yang mempunyai hasil biji per petak &gt;2000 g adalah V192 dan V167.</p>

1969 ◽  
Vol 55 (1) ◽  
pp. 23-43
Author(s):  
Abad Morales Muñoz ◽  
Raúl Abrams

Three varieties and an irradiation-derived line of pigeonpeas were used as parents in five crosses as follows: P.I. 5690 X Kaki, P.I. 5690 X Saragateado, P.I. 5690 X 526, Kald X 526, and Saragateado X 526. The F2, F3 and parents of each cross were planted in the field at the Isabela Substation during 1966-67 in a randomized block design with three replicates. Genotypic variability was studied and genotypic and phenotypic correlations were calculated for all the crosses in the F2 and F3 generations. Genetic coefficients of variation and heritability estimates were computed for four traits in five crosses and for six traits in one particular cross. Frequency distributions are shown for date of flowering, plant height, and seed weight. There was much greater variation for all crosses, in general, in seed weight, plant height, and flowering date than in number of seeds per pod. With the exception of number of pods per plant the correlations between seed yield and other traits were not great enough to provide reliable indications for yield. The phenotypic and genotypic correlations between seed yield and number of pods per plant were high, above 0.90. However, their low heritability, 45.3 and 52.1 percent in F2 and F3 generations, tends to indicate that not too much progress could be expected for seed yield improvement by selecting for large number of pods per plant. Good progress by selection could be made by breeders in traits such as flowering date, plant height, and seed weight which showed high heritability values.


2021 ◽  
Vol 19 (2) ◽  
pp. 117
Author(s):  
Heru Kuswantoro ◽  
Moch Muchlish Adie ◽  
Pratanti Haksiwi Putri

<p>Genetic parameters are important in genetic improvement and variety development. This study aimed to determine the effective characters that can be applied as selection criterion in soybean breeding using genetic parameters. About 100 soybean genotypes were grown in the Muneng Agricultural Technology Research and Assessment Installation from April to July 2020. The trial was conducted using a randomized complete block design. The results showed that high genetic variability was found on days to maturity, number of branches per plant, number of productive nodes per plant, 100-seed weight, and seed yield. The high heritability was shown by days to maturity, plant height, number of branches per plant, and 100-seed weight. All phenotypic correlations were significant, except for the correlation between seed yield and days to maturity, plant height, number of branches, and number of productive nodes. The seed yield had no genotypic correlation with all agronomic characters observed. The genotypic correlation was only significant for plant height and number of productive nodes, number of branches and number of filled pods, as well as number of productive nodes and 100-seed weight. Therefore, the improvement of seed yield can be conducted through direct selection using the seed yield parameter or indirectly using the 100-seed weight.<br /><br /></p>


Author(s):  
İsmail Demir ◽  
Kenan Karaca

This study was conducted to determine the effect of different nitrogen and phosphorus doses on yield and yield parameters of safflower. Experiment designed in split plots of randomized complete blocks with three replications. The treatments consisted of four nitrogen doses 0, 4, 8, 12 kg N/da as the main plots and four phosphorus doses (0, 4, 8, 12 kg P2O5/da) as the subplots. According to the results, nitrogen and phosphorus doses change has positive effects on day of rosette stage, flowering date, day of maturity, plant height, number of side branches, number of table, weight per thousand seeds and seed yield. It was determined that, plant height, number of branches, head number, head diameter, 1000 seed weight, hull-kernell ratio, yield, and crude oil rate ranged from 48.5 -54.5 cm, 2.6-3.6, 3.6-4.7, 19.73-22.28 mm, 34.79-37.43 g, 57.06%-59.37%, 82.17-182.23 kg/da, and 35.35%-38.59% respectively. The highest yield was determined as 182.23 kg/da from 12kg N/da+12 kg P2O5/da fertilizer doses.


2016 ◽  
Vol 17 (2) ◽  
pp. 88
Author(s):  
Iswari S. Dewi ◽  
Indrastuti A. Rumanti ◽  
Bambang S. Purwoko ◽  
Triny S. Kadir

<p>Agronomic Characters and Resistance of Several Dihaploid Maintainer Lines to Bacterial Leaf Blight. Bacterial blight (Xanthomonas oryzae pv. oryzae, Xoo) is one of the most serious diseases of rice in Indonesia. From previous research thirteen lines of dihaploid (DH) maintainer lines-derived anther culture were selected for developing cytoplasmic male sterile lines. In this research those DH maintainers were evaluated for their agronomic characters such as plant height, number of productive tiller, and seed weight per hill as well as their resistance to Bacterial Leaf Blight (BLB) pathotypes III, IV and VIII at Indonesian Center Rice Research (ICRR), Sukamandi during wet season 2008/2009. The results showed that 10 DH maintainer lines i.e. BioMAc18-H36-3-Ma, BioMAc19-H36-3-Mb, BioMAc20- H36-3-Mc, BioMAc21-H36-4-M, BioMAc26-B1-1-Mb, BioMAc29-B2-1-Db, BioMAc31-B2-1-M, BioMAc33-B2-4- Pb, BioMAc34-B4-1-Da and BioMAc35-B4-1-Dc having plant height ranged from 88.79-104.08 cm, productive tiller ranged from 9 to 13 tillers/hill. Among those DH maintainer lines three lines were resistant to BLB pathotype III, i.e. BioMAc26-B1-1-Mb, BioMAc29-B2-1-Db and BioMAc31- B2-1-M lines, and two lines, i.e. BioMAc21-H36-4-M and BioMAc35-B4-1-Dc were highly resistant to BLB pathotype VIII. Only BioMAc35-B4-1-Dc lines highly resistant to BLB pathotype IV.</p><p> </p><p><strong>Abstrak</strong></p><p>Hawar daun bakteri yang disebabkan oleh bakteri Xanthomonas oryzae pv. oryzae, (Xoo) adalah salah satu penyakit utama padi di Indonesia. Dari penelitian sebelumnya 13 galur pelestari dihaploid (DH pelestari) yang berasal dari kultur antera telah diseleksi untuk perakitan galur mandul jantan baru. Tujuan penelitian ini adalah untuk mengevaluasi karakter agronomi dan ketahanan galur-galur DH pelestari terhadap patogen HDB. Karakter agronomi yang diamati meliputi tinggi tanaman, jumlah anakan produktif, dan bobot hasil per rumpun, sedangkan ketahanan terhadap HDB diamati berdasarkan skor ketahanan terhadap Xoo patotipe III, IV dan VIII di Balai Penelitian Padi, Sukamandi pada musim hujan 2008/2009. Hasil penelitian menunjukkan 10 galur DH pelestari, yaitu galur BioMAc18-H36-3-Ma, BioMAc19-H36-3-Mb, BioMAc20- H36-3-Mc, BioMAc21-H36-4-M, BioMAc26-B1-1-Mb, BioMAc29-B2-1-Db, BioMAc31-B2-1-M, BioMAc33-B2-4- Pb, BioMAc34-B4-1-Da, dan BioMAc35-B4-1-Dc mempunyai tinggi tanaman berkisar antara 88,79-104,08 cm, anakan produktif berkisar antara 9-13 batang/rumpun. Di antara galur DH pelestari yang tahan terhadap HDB patotipe III, yaitu galur BioMAc26-B1-1-Mb, BioMAc29-B2-1-Db dan BioMAc31- B2-1-M, dua galur yaitu galur BioMAc21-H36-4-M dan BioMAc35-B4-1-Dc sangat tahan terhadap HDB patotipe VIII, sedangkan galur BioMAc35-B4-1-Dc yang sangat tahan terhadap HDB patotipe IV.</p>


Agric ◽  
2016 ◽  
Vol 25 (1) ◽  
pp. 1
Author(s):  
Nugraheni Widyawati

<p>Studies on the growth and yield performance of wheat (Triticum aestivum L. variety of Dewata) planted in polybag with various populations and media compositions, had been conducted in Faculty of Agriculture Satya Wacana Christian University field research, located at Salaran – Kopeng village, Semarang district, from April 2012 to August 2012. Location of the study lies at an altitude of 900 meters above the sea level. Purpose of this study were to determine the appearance of both the growth and yield of wheat grown in polybag with a various population densities and media composition, as well as to determine the combination of treatments that producing the highest yield of wheat. Factorial design used that was consisted of two factors, i.e: (1) growing gedia composition with four different volume ratio of sand, soil and manure (1:1:1), (1:1:0), (1:0:1) and (0:1:1), and (2) population densities consisted of four: 1 seeds per polybag; 2 seeds per polybag; 3 seeds per polybag and 4 seeds per polybag, so that there were 16 combinations of treatments. Each combination was repeated three times. Basic design of the experiments used Randomized Block Design. Experimental data were analyzed by using analysis of variance (ANOVA) and high significant difference (HSD) test at 95% level of confidence. The conclusion of this study were: (1) Combination of treatment of population densities and composition of  growing media influence on plant height, number of plants per cluster, panicle length, seed weight per panicle, seed weight per cluster and seed weight per polybag and (2) the highest seed weight per polybag was resulted in the density of population of 4 seeds per polybag and planting on mixed media of sand, soil and manure in the volume ratio of 1:1:1.</p>


2017 ◽  
Vol 23 (1) ◽  
Author(s):  
A. B. SAGADE

The study of the effect of three well known mutagens, ethyl methane sulphonate (EMS), methyl methane sulphonate (MMS) and gamma rays (GR) on the yield contributing traits of the urdbean variety TPU-4 were carried out in the M3 generation. Effect of selected mutagenic treatments/doses of EMS (0.02, 0.03 and 0.04 M), MMS (0.0025, 0.05 and 0.01 M) and (GR) (30, 40 and 50 KR) on different yield contributing traits like plant height, plant spread, number of pods per plant, pod length, number of seeds per pod, seed yield per plant and 100 seed weight were analyzed in the M3 populations of the variety TPU-4. Seeds of M2 plants and control were harvested separately and sown to raise M3 population.. Genetic variabilty in the mutagen administered M3 progeny of the urdbean variety TPU-4 was analyzed by employing statistical methods. Data on mean values and shift in the mean of seven quantitative traits was evaluated on individual plant basis. The experimental findings revealed that concentrations / dose of the all these mutagens showed inhibitory effect on plant height, number of pods per plant, pod length and number of seeds per pod. Lower concentrations of mutagens exerted a promotory effect on plant spread, 100 seed weight and seed yield per plant while higher concentrations of these mutagens inhibited them to different extent.


Author(s):  
A. M. Pradhan ◽  
M. Roy Choudhury ◽  
A. Sawarkar ◽  
S. Das

The current investigation was carried out to examine the selection criteria for yield improvement in selected genotypes of Indian mustard. Twenty-four genotypes of Indian mustard were evaluated for seed yield and yield attributing characters with randomized block design with three replications. The analysis of variance showed significant differences among all the 24 genotypes against all the characters. The phenotypic and genotypic coefficient of variation were higher for most of the traits like seed yield per plant, number of secondary branches per plant and number of siliquae per plant. High heritability coupled with high genetic advance in percent of mean was registered for number of siliquae per plant, number of primary and secondary branches per plant, plant height, 1000 seed weight, siliqua length per plant and seed yield per plant suggesting predominant role of additive gene action for expression of these traits. The correlation study revealed that seed yield per plant was positively and significantly correlated with number of primary and secondary branches per plant, number of siliquae per plant, siliqua length per plant and 1000 seed weight at both phenotypic and genotypic level. The traits namely, number of secondary branches per plant recorded as highest positive direct effect followed by number of seeds per siliqua, number of siliquae per plant and plant height. Therefore, they may be carried out further evaluation in multilocational trials, biotic and abiotic stress like environmental conditions to check their stability and adaptability.


Sign in / Sign up

Export Citation Format

Share Document