scholarly journals Effect of Gypsum and Etepon on Crop Yield Siamese Orange (Citrus Nobilis Var. Microcarpa L.)

2021 ◽  
Vol 5 (2) ◽  
pp. 136-144
Author(s):  
A. A. Istri Tyagita Varenia ◽  
Ni Putu Anom Sulistiawati ◽  
Ni Komang Alit Astiari

This study aims to determine the effect of Gypsum and Etepon on the yield of Siamese orange (Citrus nobilis Var Microcarpa. L) conducted in Belancan Village, Kintamani District, Bangli Regency from December 2020 to July 2021. This study used a randomized block design (RAK) with 2 factors arranged in a factorial manner. The first factor that was tried was the dose of gypsum fertilizer (G) which consisted of 4 levels, namely: G0 (0 g/tree), G1 (250 g/tree), G2 (500 g/tree) and G3 (750 g/tree. While the second factor is the concentration of etepon (E) which consists of 3 levels, namely: E0 (0 ml/l water/tree), E1 (0.75 ml//l water/tree) and E2 (1.5 ml/l water)/tree). Thus, there were 12 combination treatments, each of which was repeated 3 times so that 36 citrus trees were needed.  The results showed that the interaction between the dose of gypsum and the concentration of etepon had no significant effect on all observed variables. The highest harvested fruit weight per tree was obtained at a dose of gypsum 750 g/tree which was 6.32 kg or an increase of 70.35% when compared to treatment without gypsum which was only 3.71 kg. The highest harvested fruit weight per tree was obtained in the etepon treatment with a concentration of 1.5 ml/l/tree, which was 6.54 kg, an increase of 51.38% compared to the treatment without etepon, which was only 4.32 kg.   Keywords: dose, etepon, gypsum, Siamese orange, yield

2021 ◽  
Vol 11 (1) ◽  
pp. 10
Author(s):  
I WAYAN RUMADA ◽  
I NYOMAN RAI ◽  
RINDANG DWIYANI

Fertilization outside the season of Siam Orange (Citrus microcarpa L.) with Induction of Flowering and Dormancy Breaking Substances. The Siam orange (Citrus microcarpa L.) produces seasonal fruit with the on-season harvest from July to August while the off-season harvest, i.e. from February to September there is hardly any fruit, or very limited supply. The purpose of this study was to examine the response of flowering induction and dormancy-breaking substances to produce off-season fruits of Siam orange. This research began in April to December 2016. The experiment was arranged factorially with two factors using a randomized block design (RBD), with nine combination treatments and six replications. Flowering induction factors consist of three levels, namely Ik = Control, IP = Paclobutrazol at a dose of 7.5 g/l, and Im = cutting the tip of dormant twigs. Dormancy-breaking substances factor consists of three levels, namely Dk = Control, Db = BAP 200 ppm, and Dn = KNO3 300 ppm. The results of the experiment showed that the highest fruit weight per tree at off-season production was obtained by induction with paklobutrazol (28.86 kg) and the lowest was in control (12.75 kg). Flowering induction treatments was not significantly different effect on fruit quality of Siam orange, represented by weight per fruits, fruit diemater, total soluble solid and vitamine C content was not siginificant different among levels of treatment. Dormancy-breaking substances treatment also not significantly effect on fruit quality of Siam orange. Based on this research it is recommended to induce flower for off-season produce of Siam orange by pruning the tips of dormant twigs or by using paklobutrzol.


2020 ◽  
Vol 4 (2) ◽  
pp. 151-156
Author(s):  
I Putu Tommy Saputra Adi ◽  
Made Sri Yuliartini ◽  
I Gusti Bagus Udayana

This study aims to determine the effect of the type of rabbit compost and the dose of NPK fertilizer on the growth and yield of zucchini plants. The design used in this study was a factorial randomized block design (RBD) consisting of 2 factors, namely: The first factor is rabbit compost (K) which consists of 4 levels of treatment, namely: K0 = 0 tonnes / ha, K1 = 10 tonnes / ha, K2 = 20 tonnes / ha, K3 = 30 tonnes / ha. The second factor, NPK pearl fertilizer dosage (D) consists of 4 levels, namely: D0 = 0 kg / ha-1, D1 = 100 kg / ha-1, D2 = 200 kg / ha-1, D3 = 300 kg / ha -1. Thus, there were 16 combination treatments, each of which was repeated 3 times so that there were 48 experimental plots. The research data were analyzed statistically using analysis of variance. For a single treatment that has a real to very real effect, it is followed by the BNT test at 5% level, the results showed that the interaction between rabbit compost dose and NPK (KxD) had no significant effect (P≥0.05) on all variables. The highest fresh fruit weight was obtained at the rabbit compost dose of 30 tons / ha (K3), namely 2463.64 grams, an increase of 16.09% when compared to the treatment without compost dose of 0 tons / ha (K0), namely 2084.30 grams . The high fresh weight was supported by the number of harvests per plant (r = 0.821 *), fruit length (r = 0.935 **) and fruit diameter (r = -0.975 **). The highest fruit fresh weight was obtained at the NPK fertilizer dose of 300 kg / ha (D3), namely 2488.95 grams. The fresh weight of the fruit increased by 18.23% when compared to the NPK fertilizer dose of 0 ton / ha (D0), which was 2104.87 grams. The high fresh weight of fruit was supported by the number of harvests per plant (r = 0.923 **)


Author(s):  
Nihad H. Mutlag ◽  
Ameer S. A. Al-Haddad

A field study was conducted to evaluate the efficiency of four microbial insecticides viz. Beauveria bassiana; HaNPV (Helicoverpa armigera Nuclear Polyhedrosis virus); (Bacillus thuringiensisvar.kurstaki 2 gm/L); HaNPV+Bt; neem oil; neem cake and D.D.V.P EC 76% @0.05% at Research Farm SHIATS,Allahabad during rabi season of 2011-2012. The experiment was laid out in randomized block design with seven treatment and replicated thrice. The observation larval populations of H. armigera were recorded one day before treatment was recorded at 3,7, and 10 days after treatments. The larva population of H. armigera appeared in the third week of February (8 the Standard week) and reached its peak of 14.65 larvae in first week of April and decline rapidly with maturation of crop. There was only one peak in the larval population observation in the 1st week. Bacillus thuringiensis was the most effective chemical by D.D.V.P.76%@0.05% . Among the microbial insecticides. HaNPV ,was the most effective followed by HaNPV+Bt and neem cake . The combination treatments were less effective than the individual treatment neem oil and B. bassiana were the least effective treatment in reducing the larval population of Heliverpa armigera.


AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 124-133
Author(s):  
I Ketut Arsa Wijaya

This study was conducted in Balai Benih Induk (BBI) Luwus, Baturiti District, Tabanan Regency, with the high of place 506m above sea level occurring in March to May 2014. This research used randomized block design arranged per factor, namely population of plants (P) including three steps: P1=80.000 plants per hectare, P2= 100.00 plants per hectare, P3= 120.000 per hectare; and mulch (M) that include: M0= without mulch and without cleaning, M1= without mulch with clean weeding, M2= rice plants straw mulch (5 ton per hectare) and M3= black silver plastic mulch. Eventually, there were 12 combination treatments, each of which was repeated 3 times to obtain 36 land slots. The research indicates that there was no real interaction between the treatment of plant population and mulch usage in all variables observed. The 100.000 plant population per hectare can produce the weight of dry and fresh oven corn kernel without highest cornhusk that was to say 4.79 tons and 0.53 tons or 11.66 % and 20.45% higher compared to 120.000 plant population per hectare. The use of black silver plastic and rice plants straw mulch can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare each of which is 4.69 tons, 4.57 tons, and 0.54 tons, 0.47 tons or 26.76%, 38.46 %, and 23.51 %, 20.51 % higher than without mulch and without clean weeding. Clean weeding treatment can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare with its weight of 4.63 tons and 0.51 tons or 25.35 % and 35.90 % higher than without mulch and cleaning. Clean weeding treatment was not obviously different from mulch treatment. The identification of weed types were 19 kinds of weeds and Cyperus rotundus L. Weeds. They have the highest density and each absolute frequent of 1249.333 stems m-2 and 1.00.


2017 ◽  
Vol 39 (4) ◽  
Author(s):  
NICOLE TREVISANI ◽  
RITA CAROLINA DE MELO ◽  
MAURO PORTO COLLI ◽  
JEFFERSON LUÍS MEIRELLES COIMBRA ◽  
ALTAMIR FREDERICO GUIDOLIN

ABSTRACT Knowledge about associations between traits is fundamental for plant breeding, since indirect selection can accelerate the development of promising genotypes. This study assessed the magnitude of associations between agronomically important traits in fisális (Physalis peruviana L). The experiment was conducted in Lages, Santa Catarina, and the treatments consisted of six fisális populations. The experiment was arranged in a randomized block design, with two replications and seven plants per plot. The correlations between traits were estimated based on the Pearson correlation coefficients and partitioned into direct and indirect effects through path analysis. Fruit weight was positively correlated with number of seeds (0.874), equatorial fruit diameter (0.738) and polar fruit diameter (0.672). By path analysis, number of seeds was identified as the trait with the highest direct contribution to fruit weight. The high phenotypic correlations between the equatorial and polar fruit diameters with fruit weight were mainly due to the indirect effect via number of seeds (0.505 and 0.459). The selection for heavier fisális fruits was strongly influenced by number of seeds, i.e., this trait should be taken into account for selection.


2017 ◽  
Vol 39 (4) ◽  
Author(s):  
MATEUS DA SILVEIRA PASA ◽  
BRUNO CARRA ◽  
CARINA PEREIRA DA SILVA ◽  
MARLISE NARA CIOTTA ◽  
ALBERTO FONTANELLA BRIGHENTI ◽  
...  

ABSTRACT The low fruit set is one of the main factors leading to poor yield of pear orchards in Brazil. Ethylene is associated with abscission of flowers and fruitlets. Then, the application of ethylene synthesis inhibitors, such as AVG, is a potential tool to increase fruit set of pears. The objective of this study was to evaluate the effect of AVG, sprayed at different rates and timings, on fruit set, yield and fruit quality of ‘Rocha’ pear. The study was performed in a commercial orchard located in the municipality of São Joaquim, SC, during the growing seasons of 2014/2015 and 2015/2016. Plant material consisted of ‘Rocha’ pear trees grafted on quince rootstock ‘BA29’. AVG was tested at different rates (60 mg L-1 and 80 mg L-1) and timings [full bloom, one week after full bloom (WAFB), and two WAFB), either alone or in combination. The experiment was arranged in a randomized block design, with at least five single-tree replications. The fruit set, number of fruit per tree, yield, estimated yield, fruit weight, return bloom, and fruit quality attributes were assessed. Fruit set and yield were consistently increased by single applications of AVG at 60 and 80 mg L-1 at both one and two weeks after full bloom, without negatively affecting fruit quality attributes and return bloom.


2011 ◽  
Vol 29 (4) ◽  
pp. 531-536 ◽  
Author(s):  
Angela Kwiatkowski ◽  
Edmar Clemente ◽  
Carlos Alberto Scapim

In Brazil, the greengrocery market of sweet corn has been expanding along the country. In contrast, there have been few agri-industries canning sweet corn (Zea mays) because of the lack of cultivars with agronomic characteristics proper to industrial purposes. The purpose of this study was to evaluate the general combining ability (GCA) of seven inbred lines of sweet corn, and the specific combining ability (SCA) of their hybrid combinations based on their agronomic traits, and the chemical composition of the grain. In the growing season 2006/2007, twenty-one single hybrids were evaluated in the Iguatemi Research Station, Maringá County, Northwestern Paraná, in Brazil using a complete randomized block design with four replications. Data were subjected to the analysis of variance and the genotypes were clustered by the Scott-Knott test. We estimated the GCA and SCA effects using the Griffing's method IV with the fixed model for plant height (PH), height of ear (EH), dehusked ears yield (DEY), reducing (RS) and total sugars (TS), starch (ST), proteins (PTN), ether extract (EE) and fibers (FB). The inbred line L4, which was originated from the 'Doce de Cuba', had the best GCA for crop yield and grain quality and therefore should be used in the next hybrid combinations. The hybrids L4xL5 and L3xL7 were the most promising with regard to crop yield and grain quality.


2013 ◽  
Vol 3 (2) ◽  
pp. 183-191
Author(s):  
Muhammad Rizqillah Hidayat

       Watermelon come from arid tropical and subtropical regions of Africa. Watermelon is an annual plant that grows and requires full sun. Lebak swamp soil is known to have the properties and properties of acid sulphate soils that affect the physical, chemical and biological properties of the soil. Fertilizers are the key to soil fertility. Compound fertilizer is a fertilizer that contains several nutrients, for example nutrients (nitrogen), potassium (K) and phosphorus (P). This study aims (i) to obtain influence and (ii) the best dosage of various applications of NPK Compound fertilizer dosage on the growth and yield of watermelon plants on lebak wetland. The study was conducted in Teluk Buluh Village, Banjang District, Hulu Sungai Utara Regency in July - September 2013, this study used a single randomized block design (RBD) with 5 treatments and 5 replications so that there were 25 experimental units. The factors tested were various doses of Compound NPK fertilizer, namely m1: 0.333 t.ha-1 (200 g / bed), m2: 0.666 t.ha-1 (400 g / bed), m3: 0.999 t.ha-1 ( 600 g / bed), m4: 1,332 t.ha-1 (800 g / bed) and m5: 1,665 t.ha-1 (1000 g / bed). The results of this study indicate that the dosage of Compound NPK fertilizer given to watermelon plants in swampland area had a significant effect on plant length and number of leaves aged 25 HST and 30 HST and had a very significant effect on the fruit weight and number of watermelon plants with the best treatment is  m3: 0.999 t.ha-1 (600 g / bed).


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S. Kalaiselvan ◽  
S. Anuja

The present investigation consisted of 9 lines, 3 testers with their 27 F1 hybrids developed through line x tester mating fashion in randomized block design with three replications. Parents and hybrids differed significantly for gca and sca effects, respectively. Among the parents, maximum gca effect was found in EC 112241 and Aruna for inter node distance, EC 112241 and Arka Anamika for single fruit weight, EC 109454, EC 169344 and Arka Anamika for number of branches per plant, EC 169331 and Arka Anamika for number of fruits per plant, EC 109454 and Aruna for plant height at final harvest. The crosses exhibited maximum positive significant sca effect was observed in EC 112241 x Aruna, EC 109454 x Kashi Kranti and EC 112264 x Aruna were found as good specific combiners for single fruit weight, number of branches per plant and number of fruits per plant respectively. The hybrid EC 112264 x Aruna exhibited maximum significant negative sca effects for inter node distance and plant height at final harvest.


2020 ◽  
Vol 19 (1) ◽  
pp. 33
Author(s):  
ROSIHAN ROSMAN ◽  
OCTIVIA TRISILAWATI ◽  
SETIAWAN SETIAWAN

<p>ABSTRAK<br />Dosis pupuk N, P, dan K optimal untuk akar wangi belum diketahui<br />dan penggunaannya  masih beragam. Penelitian bertujuan untuk<br />mendapatkan komposisi dosis pupuk N, P, dan K optimal yang dapat<br />meningkatkan produktivitas akar wangi. Penelitian dilakukan di Desa<br />Sukakarya, Garut dari bulan Januari 2009 sampai dengan Desember 2010<br />menggunakan rancangan Acak Kelompok, dengan 3 ulangan. Perlakuan<br />meliputi 9 kombinasi pupuk N, P, dan K: (1). Kontrol; (2) 100 kg SP-36 +<br />75 kg KCl; (3) 100 kg ZA + 75 kg KCl; (4) 100 kg ZA + 50 kg SP-36 + 75<br />kg KCl; (5) 100 kg ZA + 100 kg SP-36 + 75 kg KCl; (6) 100 kg ZA + 100<br />kg SP-36 + 150 kg KCl; (7) 100 kg ZA + 100 kg SP-36; (8) 200 kg ZA +<br />100 kg SP-36 + 75 kg KCl; (9) 200 kg ZA + 100 kg SP-36 + 150 kg KCl.<br />Panen dilakukan pada 12, 14, dan 16 bulan setelah tanam (BST). Hasil<br />menunjukkan bahwa pemupukan dosis 100 kg ZA + 75 kg KCl<br />menghasilkan minyak 52,59 dan 67,78 kg/ha (12 dan 14 BST) dan 200 kg<br />ZA + 100 kg SP-36 + 75 kg KCl menghasilkan 67,76 kg /ha (16 BST),<br />dengan kadar vetiverol lebih dari 50%.<br />Kata kunci: Vetiveria zizanioides, pemupukan, vetiverol, produksi, mutu<br />minyak</p><p>ABSTRACT<br />The optimum dosage of N, P, and K fertilizer has not been known<br />yet and it usage was still varied. The research aim is to obtain an optimal<br />composition of N, P, and K fertilizer that could increase productivity of<br />vetiver crop. The researsch has been conducted in Sukakarya Village,<br />Garut, from January 2009 to December 2010. The research was arranged<br />in randomized block design, with 3 replications and N, P, and K fertilizer<br />combination treatments i.e.: (1) Control; (2) 100 kg SP-36 + 75 kg KCl;<br />(3) 100 kg ZA + 75 kg KCl; (4) 100 kg ZA + 50 kg SP-36 + 75 kg KCl;<br />(5) 100 kg ZA + 100 kg SP-36 + 75 kg KCl; (6) 100 kg ZA + 100 kg SP-<br />36 + 150 kg KCl; (7) 100 kg ZA + 100 kg SP-36; (8) 200 kg ZA + 100 kg<br />SP-36 + 75 kg KCl; (9) 200 kg ZA + 100 kg SP-36 + 150 kg KCl.<br />Harvesting was done at 12, 14 and 16 months after planting (MAP). The<br />result showed that the dose of 100 kg ZA + 75 kg KCl produced vetiver oil<br />52,59 and 67,78 kg/ha (12 and 14 MAP). Meanwhile the dose of 200 kg<br />ZA + 100 kg SP-36 + 75 kg KCl produced 67,76 kg/ha (16 MAP),<br />respectively. vetiverol content were more than 50%.<br />Key words: Vetiveria zizanioides, fertilizing, vetiverol, production, oil<br />quality</p>


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