scholarly journals Effect of scion defoliation period and methods of grafting on success and survivability in mango

2016 ◽  
Vol 27 (3) ◽  
pp. 242-248
Author(s):  
J Akter ◽  
MA Rahim ◽  
T Haque ◽  
MM Hossain
Keyword(s):  
Success Rate ◽  
Block Design ◽  
Tree Improvement ◽  
Fruit Tree ◽  
Improvement Program ◽  
Randomized Complete Block Design ◽  
Graft Success ◽  
Bud Breaking ◽  
Grafting Methods

This study was conducted in order to investigate the effect of scion defoliation period and methods of grafting on the success and survivability of mango (var. Amrapali) at Bangladesh Agricultural University Germplasm Centre (BAU-GPC) of Fruit Tree Improvement Program (FTIP) of the Department of Horticulture, Bangladesh Agricultural University, Mymensingh. The experiment consisted of four scion defoliation periods, viz., defoliation before 9, 6, 3 days of grafting and defoliation on the day of grafting and two grafting methods namely cleft grafting and whip grafting. The study was laid out in randomized complete block design with three replications. The results revealed that scions defoliated 9 days before grafting showed the highest success (91.59%) and survivability (88.75%) and took the lowest time for bud breaking  and first leaf opening (11.10 days and 14.22 days, respectively)whereas the lowest success rate (85.82% ) and survivability (83.60%) were observed when scion defoliation was performed on the day of grafting. In respect of grafting methods, higher graft success and survivability (89.68% and 86.89%, respectively) were found in cleft method, however, this method took longer time for bud breaking (11.92 days) and first leaf opening (15.90 days). The combined influence of scion defoliation period and grafting method exhibited the best performance on graft success and survivability when cleft grafting method was used with scion defoliated 9 days before grafting operation. Therefore the results of this investigation suggested that scions defoliated 9 days before grafting operation and cleft grafting method would be better for propagation of mango, yet the performance of cleft grafting with scion defoliated 6 days before grafting was also good with the hope of getting 85% success and survivability.Progressive Agriculture 27 (3): 242-248, 2016

Screening of Mango Rootstock For Saline Tolerance

2021 ◽  
Vol 19 (1) ◽  
pp. 93-102
Author(s):  
MA Rahim ◽  
M Moniruzzaman ◽  
F Rahman
Keyword(s):  
Block Design ◽  
Tree Improvement ◽  
Fruit Tree ◽  
Improvement Project ◽  
Saline Tolerance ◽  
Randomized Complete Block Design ◽  
Salinity Levels ◽  
Improvement Programme ◽  
Number Of Leaves ◽  
Saline Area

An experiment was conducted at Fruit Tree Improvement Project, Fruit Tree Improvement Programme, Bangladesh Agricultural University-Germplasm Center (FTIP, BAU-GPC), Bangladesh Agricultural University (BAU), Mymensingh during the period of April 2020 to June 2020 to study the performance of selected mango rootstocks for the saline area. The two-factor experiment consisted of four mango rootstock varieties such as V1 = BAU Aam-9, V2 = BAU Aam-6, V3 = BAU Aam-4 and V4 = Amropali and six salinity treatments namely control S1 = 0 dSm-1, S2 = 4 dSm-1, S3 = 8 dSm-1, S4 = 10 dSm-1, S5 = 12 dSm-1 and S6 = 14 dSm-1. The experiment was conducted following randomized complete block design with three replications. Results revealed that rootstock line and salinity levels had significant influences on various rootstock characters viz. length of rootstocks, number of leaves and percent rootstocks success and survivability. In case of varietal effect, the highest number of leaves (32.44) found in BAU Aam-6 and the lowest number of leaves was recorded in Amropali (22.55) at 90 days after transplanting. The longest rootstock length observed in 90 DAT which (54.83 cm) found in BAU Aam-9and shortest rootstock recorded in Amropali (47.94 cm). The highest survivability (51.44%) was recorded in BAU Aam-9 and the lowest survivability recorded in Amropali (33.88%). In case of salinity treatments, the highest survivability (95.83%) was recorded in control and the lowest survivability (0.00%) recorded in 14 dsm-1 at 90 DAT. Interaction of rootstock varieties and different salinity treatments showed significant variation on the length leave and survivability of rootstocks at 90 DAT. The maximum number of rootstock leaves recorded in V2S2 (46.33) and lowest number of leave recorded in V4S6 (7.66). The highest rootstock length was found in V1S3 (78.00 cm) and lowest in V1S2 (21.66 cm). The highest Survivability (100 %) observed in V1S1, V1S2, V2S1, V2S2 and V4S1. From the above mentioned it can be said BAU Aam - 9 and BAU Aam – 6 rootstock varieties performed best from 0-8 dSm-1 salinity. The overall salinity tolerance was graded as follows: BAU Aam - 9>BAU Aam – 6> BAU Aam-4>Amropali rootstock line. SAARC J. Agric., 19(1): 93-102 (2021)

scholarly journals Apple, Leafhopper Test, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 3-3
Author(s):  
George C. Hamilton ◽  
Dean Polk ◽  
Eugene Rizio
Keyword(s):  
Disease Control ◽  
Block Design ◽  
Apple Orchard ◽  
Fruit Tree ◽  
Post Treatment ◽  
Single Tree ◽  
Randomized Complete Block Design ◽  
Glass Plates

Abstract A 10 year-old apple orchard, variety ‘Red Delicious’ was used in this test. Single tree plots, replicated 4 times/variety in a randomized complete block design, were sprayed to runoff (ca 3 gal/tree) with a hydraulic sprayer equipped with a handgun operated at 200 psi. Treatments were applied at petal fall (PF—11 May), 5th cover (5th—12 Jun) and 6th cover (6th—3 Aug). The orchard was treated with Captan for disease control as needed. Weekly ERM counts were made by randomly selecting 20 leaves/tree, brushing mites onto glass plates coated with Triton B-1956, and counting motile ERM and AF. Mite-days (MD) were calculated as: MD = MD1 + [(Ml + M2)/2 × 7], where MD1 = mitedays already accumulated, Ml = avg ERM/leaf on a given sample date and M2 = avg ERM/leaf on the next sample date. Leafhoppers (White apple and/or Rose) were evaluated at 1,3, 7, 14, and 21 days post treatment using a 20 leaves/tree (PF) or 50 leaves/tree (5th and 6th) sample. Predatory coccinellids were sampled by 3 minute counts of larvae and adults. At harvest, 100 fruit/tree were collected and weighed, evaluated for spray injury, and rated (0%-100%) for russeting. Data were transformed to sqrt(x + 1) or arcsine(x) before ANOVA and comparison of means.

scholarly journals Effect of scion defoliation and stock leaf retention on growth of grafted lime (cv. Bau lime-1)

2018 ◽  
Vol 4 (1) ◽  
pp. 44-48
Author(s):  
Ashrafun Nahar ◽  
Md Shahidul Haque Choudhury ◽  
Md Abdur Rahim
Keyword(s):  
Block Design ◽  
Maximum Growth ◽  
Improvement Program ◽  
Graft Union ◽  
Factor B ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Root Stock ◽  
Number Of Leaves ◽  
Leaf Retention

The present experiment was conducted at the Germplasm Centre (GPC) of the Fruit Tree Improvement Program (FTIP), Bangladesh Agricultural University, Mymensingh, during the period from June to October, 2013 to investigate the effects of scion defoliation and stock leaf retention on growth of grafted Lime (cv. BAU lime-1). The experiment consisted of two factors such as Factor A: four scion defoliation periods viz., defoliation before 9 days of grafting, defoliation before 6 days of grafting, defoliation before 3 days of grafting and defoliation on the day of grafting and Factor B: retention of leaf on rootstock below graft union viz., rootstock with leaf and rootstock without leaf. The study was laid out following Randomized Complete Block Design (RCBD) with three replications. The grafts were kept under observation in poly tunnel condition. Results revealed that highest graft height, (45.47 cm), number of leaves (15.72) and branches (2.92), length of the largest leaf(8.45cm), breadth of the largest leaf(3.77cm) were observed when scions were defoliated 6 days before grafting and lowest graft height (38.72 cm), number of leaves (12.12) and branches (2.25), length of the largest leaf(5.60cm), breadth of the largest leaf(3.37cm) were observed when scions were defoliated on the day of grafting. In respect of retention of leaves on rootstock, the highest graft height (43.83 cm), number of leaves (15.62) and branches (2.82), length of the largest leaf(7.47cm), breadth of the largest leaf(3.78cm) were found when grafting was done on rootstock with leaves and lowest graft height (39.78 cm), number of leaves (11.32) and branches (2.48), length of the largest leaf(6.57cm), breadth of the largest leaf(3.40cm) were found when grafting was done on rootstock without leaves. Therefore, the maximum growth in grafted lime seedlings can be achieved if scion defoliated 6 days prior to grafting operation and leaves are kept on root stock below graft union.Asian J. Med. Biol. Res. March 2018, 4(1): 44-48

scholarly journals (97) Performance of `Ginger Gold' and `Gala' on Malling 9 and Budagovsky 9 over Ten Years

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1030A-1030
Author(s):  
Robert M. Crassweller ◽  
Donald E. Smith
Keyword(s):  
Block Design ◽  
Total Yield ◽  
Calculated Data ◽  
Fruit Weight ◽  
Fruit Tree ◽  
Single Wire ◽  
Cross Sectional ◽  
Growing Seasons ◽  
Randomized Complete Block Design ◽  
Rock Springs

An apple planting was established in 1996 comprised of two cultivars: `Ginger Gold' (GG) and `Crimson Gala' (CG) on Malling 9 NAKB T337 and Budagovsky 9 at the Horticulture Research Farm at Rock Springs, Pa. The trees were planted at a spacing of 1.5 × 3.7 m in a randomized complete-block design with 10 replications. The trees were trained to a vertical axe system with a single wire set at 2.8 m, to which the conduit was attached. Data collected included trunk cross-sectional area (TCA), tree yield, number of fruit, and number of rootsuckers. Calculated data included annual tree growth, tree efficiency, average fruit weight, and crop load. In most years, there were significant cultivar × rootstock interactions for some variables. At planting and for the first two growing seasons, GG/B.9 were significantly larger than GG/M.9 as measured by TCA. At planting, there were no differences in TCA for CG, but, by the end of 1996, M.9 trees were significantly larger and stayed this way for the rest of the study. The GG/M.9 trees did not have significantly larger TCA than those on B.9 until 2005. Trees on B.9 were 23% and 31% smaller in 2005 for GG and CG, respectively, for B.9 than on M.9. Flowering occurred first and in greater abundance for GG/B.9. At the end of the 10th growing season, there was no difference in number of fruit or total yield per tree within cultivars by rootstock. However, for both cultivars, efficiency was highest for trees on B.9. Rootsuckers were greatest for trees on B.9. Fruit weight, when adjusted with number of fruit/tree as a covariate, was different for GG in some years.

scholarly journals EFFICIENCY OF VEGETATIVE PROPAGATION OF CAJÁ-DE-JABUTI UNDER CONCENTRATIONS OF INDOLEBUTYRIC ACID AND GRAFTING METHODS

2021 ◽  
Vol 34 (2) ◽  
pp. 310-317
Author(s):  
DHEIMY DA SILVA NOVELLI ◽  
GABRIELA DA SILVA TAMWING ◽  
SEBASTIÃO ELVIRO DE ARAÚJO NETO ◽  
LUIS GUSTAVO DE SOUZA E SOUZA ◽  
NILCILÉIA MENDES DA SILVA
Keyword(s):  
Vegetative Propagation ◽  
Block Design ◽  
Dry Mass ◽  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Parametric Test ◽  
Randomized Block Design ◽  
Different Types ◽  
Graft Success ◽  
Grafting Methods

ABSTRACT The objectives of the tests were to evaluate concentrations of indolebutyric acid (IBA) combined with different types of cuttings and grafting methods on the vegetative propagation of cajazeira-dejabuti (S. testudinis). The experiment with stem cuttings was conducted in a greenhouse with an intermittent misting system. The experimental design was completely randomized in a 5 x 6 factorial arrangement consisting of five cutting types: apical, medial, basal, stratified, and tanchan, and six IBA concentrations: 0, 1,000, 2,000, 3,000, 4,000, and 5,000 mg kg-1, with four replications of ten cuttings. The experiment with the root cuttings followed a randomized block design composed of six IBA concentrations (0, 1,000, 2,000, 3,000, 4,000, and 5,000 mg kg-1) with four replications, evaluating after 120 days the percentages of live, sprouted, rooted, and calloused cuttings, and the number and dry mass of roots and sprouts. Five grafting methods (chip budding, shield budding, cleft grafting, wedge grafting, and splice grafting) were tested by evaluating the graft success and sprouting percentages at 30 and 60 days after grafting, respectively. Statistical analyses were performed using the Kruskal-Wallis non-parametric test. The IBA concentrations of 0, 2,000, 3,000, and 5,000 mg kg-1 increased the number of sprouts in tanchan cuttings. The tanchan cuttings showed the highest survival and percentage of sprouts regardless of the IBA concentration. The IBA concentration of 2,200 mg kg-1 promotes higher rooting rates in root cuttings. Splice grafting provides higher graft success and sprouting rates.

scholarly journals ADAPTABILITY AND STABILITY FOR IRON AND ZINC IN COWPEA BY AMMI ANALYSIS

2021 ◽  
Vol 34 (3) ◽  
pp. 590-598
Author(s):  
CARLOS ENRIQUE CARDONA-AYALA ◽  
HERMES ARAMENDIZ-TATIS ◽  
MIGUEL MARIANO ESPITIA CAMACHO
Keyword(s):  
Genetic Improvement ◽  
Block Design ◽  
Environment Interaction ◽  
Improvement Program ◽  
Genotype Environment Interaction ◽  
Randomized Complete Block Design ◽  
Ammi Analysis ◽  
Iron And Zinc ◽  
Ammi Model ◽  
Main Effects

ABSTRACT Iron and zinc deficiency is one of the main problems affecting vulnerable populations in the Colombian Caribbean, thereby generating malnutrition from the consumption of foods with low content of essential minerals. The objective of this study was to evaluate the genotype-environment interaction for iron and zinc accumulation in grains in 10 cowpea bean genotypes by additive main effects and multiplicative interaction (AMMI) model and to select the most stable ones to stimulate their planting or as parents in the genetic improvement program. Nine promising lines and a commercial control were evaluated using the randomized complete block design with 10 treatments and four replications in 10 environments of the northern Colombia in the second semester of 2017 and first of 2018. The adaptability and stability analysis was done using AMMI model. The results showed highly significant differences at the level of environments, genotypes, and genotype-environment interaction for iron and zinc, demostrating a differential adaptability of genotypes in the test environments. Genotypes 2 and 3 expressed greater adaptability and stability for iron contents in the seed; while genotype 1, recorded it for zinc contents. These three genotypes outperformed the commercial control and, therefore, can be recommended for planting or be used as parents in the genetic improvement program.

Chilling requirement evaluation of the Abjosh cultivar (Vitis vinifera) in Afghanistan

2020 ◽  
Vol 3 (3) ◽  
pp. 88-92
Author(s):  
Ali Jawed Safdary ◽  
Ahmad Jawid Ahamdi ◽  
Nasratullah Habibi ◽  
Gul Agha Sadiq
Keyword(s):  
Higher Education ◽  
Vitis Vinifera ◽  
Block Design ◽  
Chilling Requirement ◽  
Local Cultivar ◽  
Randomized Complete Block Design ◽  
Bud Breaking

This study was conducted to determine the chilling requirement of the Abjosh grape (local cultivar). The experiment was carried out based on randomized complete block design with three replications. The grape cuttings were treated at 5°C for (0, 100, 200, 250, 300, 350, 400, and 500 hrs) as chilling treatments at Samangan Higher Education Institute in the autumn of 2018. The traits such as the percentage of bud breaking, number of days to the first bud breakage, number of days to 50% of bud breaking, and number of days to the last bud breaking were measured. The results showed that the percentage of bud breaking increased significantly, as the chilling hrs (hours) increased. By the increasing of cold duration, the percentage of bud breaking in 500 hrs increased to 80% whereas, number of days to the first bud breaking, 50% of bud breaking and the number of days to the last bud breaking were decreased to 13, 14, and 16 days, respectively. Though, there were no significant differences between the 400 and 500 cold hrs in all indicators. The findings revealed that at least 300 hrs of cold duration is essential to reach an acceptable percentage of bud breaks, but further elaboration is needed.

scholarly journals Physical analysis of peduncles of dwarf cashew clones for consumption, processed or natural

2019 ◽  
Vol 13 (2) ◽  
pp. 200-207
Author(s):  
Antonia Galdino ◽  
Laiza Brito Ribeiro ◽  
Carlos Moura ◽  
Francisca Frenna Verezza Rodrigues de Amorim ◽  
Renato Innecco
Keyword(s):  
Analysis Of Variance ◽  
Genetic Improvement ◽  
Total Mass ◽  
Block Design ◽  
Experiment Design ◽  
Physical Characteristics ◽  
Physical Analysis ◽  
Improvement Program ◽  
Basal Diameter ◽  
Randomized Complete Block Design

The physical characteristics of cashew-dwarf peduncles were evaluated to later indicate the best clones for natural consumption and/or processing, considering that consumers appreciate products for their visual attractiveness. The objective of this study was to analyze peduncles of dwarf cashew clones obtained from the Genetic Improvement Program of Embrapa Agroindústria Tropical, Cruz-CE experimental area, in order to make inferences about the physical characteristics and indicate the best clones for natural consumption and/or processing. The analyzed variables were: total mass of the cashew (MT), chestnut mass (MC), peduncle mass (MP), apical diameter (DA), basal diameter (DB), length and firmness. The experiment design was a randomized complete block design with 25 treatments (clones) with 3 replications and up to 12 cashews per plot (four plants in total). The analysis of variance and the comparison of the means by the Scott and Knott test was realized. When analyzing the MT values, it was found that 100% of the clones were classified as types 4 (approximately 150 g), 5 (approximately 100 g) and 6 (approximately 150 g) cashews/tray. As for MC, there was a variation from 8.18 to 15.08 g. General averages of 95.16, 50.07 and 41.38 mm were found for the variables length, DB and DA of peduncle, respectively. It is concluded that, in general, all clones presented good characteristics; however, clone 108-6 is the preference for most consumers since it has red staining, as did the control (CCP 76). Therefore, all clones presented desirable characteristics for natural consumption and/or processing.

scholarly journals Response of Rootstock Planting, Scion Type and Time of Grafting on Grafting Success and Subsequent Growth of Walnut Plants

2021 ◽  
pp. 47-57
Author(s):  
Rifat Bhat ◽  
Saffina Kosser ◽  
M. K. Sharma ◽  
Sharbat Hussain ◽  
Raouf Malik
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Block Design ◽  
Shoot Length ◽  
Leaf Number ◽  
Subsequent Growth ◽  
Middle Portion ◽  
Current Season ◽  
Randomized Complete Block Design ◽  
Graft Success

This was carried out in the Experimental Farm, of Division of Fruit Science, SKUAST-K- Shalimar during the years 2017 and 2018. The experiment was laid out in a Randomized Complete Block Design with three replications having 15 plants per replication. In this study rootstock were planted at three different timings (2nd fortnight of November, 2nd fortnight of December, 2017 and 2nd fortnight of January, 2018) and were grafted with two different scion types (Middle portion of current season growth with 3-5 buds and Current season growth (3-5buds) with small piece of 2- year old-wood) on two different dates (3rd week of February and 1st week of March, 2018) under polyhouse conditions. The results obtained indicated that initial graft success (75%), leaf area (350 cm2), leaf number (11.4), scion girth (4.8 cm), shoot length (21.8 cm), final plant height (132.9 cm) and final graft success (69%) were significantly better when rootstocks were planted during 2nd fortnight of November as compared to other timings of rootstock planting. Among two different scions viz., (Middle portion of current season growth with 3-5buds) and (Current season growth (3-5buds) with small piece of 2-year old wood), initial graft success (63%), leaf area (309.9 cm2), leaf number (12.9), scion girth (4.3 cm) and shoot length (19.3 cm), final plant height (119.8 cm) and final graft success (58%) were observed better with scion type having middle portion of current season growth with 3-5 buds. Time of grafting significantly influenced all the recorded parameters and best results were obtained when grafting was performed during 3rd week of February as compared to 1st week of March.

DISTRIBUSI DAN IDENTIFIKASI POPULASI SINTRONG (Crossocephalum crepidiodes.Benth) RESISTEN PARAKUAT PADA LAHAN JAGUNG (Zea mays) DI KABUPATEN DAIRI

2017 ◽  
Vol 4 (2) ◽  
pp. 149-161
Author(s):  
Berton Sianturi
Keyword(s):  
Zea Mays ◽  
Dose Response ◽  
High Resistance ◽  
Block Design ◽  
Recommended Dose ◽  
Second Step ◽  
Resistance Level ◽  
Susceptible Population ◽  
Randomized Complete Block Design ◽  
Susceptible Populations

Crassocephalum crepidioides on Cornfields in Dairi Regency had been reported tobecome more difficult to control using paraquat. The objective of the research was todetermine the characteristics and the distribution of C.crepidioides resistant to paraquatin cornfields. The experiment was carried out in two steps, the first step was screeningthe population of C. crepidioides with paraquat at the recommended dose, and the secondstep, dose-response experiment for the resistance level of C. crepidioides population withdose 0, 76, 152, 304,5, 609, 1218, and 2436 g.ai /ha. In the first step experiment, paraquatdichloride was applied at 280 g.ai/ha. The treatments were arranged in a randomized blockdesign with 3 replication. The second step experiment was that the resistant populationsconfirmed in the first experiment were sprayed for their dose-response. The treatmentswere arranged in a randomized complete block design (CRBD). The results showed thatof 30 populations of C. crepidiodes, 19 populations (63.3%) were categorized to beresistant with the mortality ranging from 10.84% to 52.08%, and 11 populations (36.7%),was categorized as high resistance with mortality of 0% to 9.21%. The level ofresistance (R/S) of R-C25, R-C27, and R-C30 populations of C. crepidioides were 12,3,14,86, and 24,83 times consecutively, compared with the susceptible population. Thenumber of C. crepidioides chlorophyl leaves in susceptible populations was significantlylower than that of a resistant populations.

Sign in / Sign up

Export Citation Format

Share Document