Effect of defoliation on garlic yield

Journal of Plant Production, 2018

and six pre-planting treatments on plant growth, yield and its components and chemical compounds of bulbs. The six pre planting treatments were T1: the control, T2: soaking garlic cloves (SGC) in water for 24 hour, T3: SGC in 5 ppm GA 3 for 24 hour, T4: SGC in water for 24 h and then placing in moist peat-moss for one day, T5: SGC in water for 24 h and then placing in moist peatmoss for two days and T6: SGC in water for 24 h and then placing in moist peat-moss until root initiation (after three days). The results showed that D2 produced markedly the highest values of plant length, number of leaves per plant, nick diameter, bulbing ratio as well as dry weight of leaves, bulb and plant. In addition, such planting date resulted in highest values of total yield at harvest time, bulb diameter, bulb weight and number of cloves per bulb in the yield sample after curing. The last planting date (D4) scored the highest values of total carbohydrates. While, D1 exhibited the highest level of nitrogen and crude protein in dry matter of garlic bulbs. T6 exhibited the highest germination percentage, plant length as well as dry weight of leaves, bulb and plant. Furthermore, such treatment (T6) produced the highest values of total yield, bulb diameter, bulb weight and total carbohydrates in bulb. Also, the highest level of nitrogen and crude protein were more achieved via T5.

A field experiment was conducted at the USDA Alliums' laid out in randomized complete block design with three replications. Result showed that plant height (49.99 cm), number of leaves per plant(6.78), length of leaves (30.74 cm), bulb fresh weight (23.06 g), bulb dry weight (5.94 g), bulb length (3.36 cm), bulb diameter (3.44 cm), number of cloves per bulb (22.88), bulb yield per plot (2.01 kg) and bulb yield per hectare (10.01 ton) were recorded maximum from 7 November planting. These parameters were recorded minimum in 22November planting. It was also found that BAU-3 produced the highest bulb yield per hectare (12.20 ton) followed byG-29 (11.20ton). The lowest bulb yield per hectare (5.20 ton) was obtained from G-32.The highest bulb yield per hectare (14.30 ton) was observed in the treatment combination of planting time 1 (7 November) with BAU-3.The lowest bulb yield per hectare (4.70 ton) was observed in the treatment combination of planting time 2 (22 November)with G-32. It can be concluded that BAU-3 genotype would give better growth and higher bulb yield if it is planted by early of November.

2017

Th e experiment was conducted during 2013-2014 and 2014-2015 at the Regional Agricultural Research Station, Ishwardi, Pabna, Bangladesh to fi nd out the appropriate irrigation schedule for optimum bulb yield and subsequent eff ect of irrigation schedule on storability of garlic. Th e experiments consisted of four irrigation frequencies (interval of 10, 15, 20 and 25 days) that were laid out in a randomized complete block design with three replications. Th e results showed that irrigation interval signifi cantly infl uenced yield and morphological characteristics (plant height, individual bulb weight/plant, number of clove/bulb, clove weight and bulb yield). Irrigation frequency of 10 days interval resulted with the highest bulb yield of 10.48 t/ha with 372 mm of seasonal water used. It was followed by 15 days interval (9.81 t/ha) where 275 mm of seasonal water was used. It was clearly shown that the bulbs lost their weight progressively aft er all irrigation treatments in storage co...

Zagazig Journal of Agricultural Research

A field experiment was carried out during the two successive winter seasons of 2015 /2016 and 2016/2017 in a Vegetative Private Farm at Hehia Distract, Sharkia Governorate, Egypt, to study the effect of lithovit as foliar application on dry weight, productivity and storability of two garlic cultivars (Balady and Sides 40). The obtained results were as follows: the interaction between Balady cultivar and spraying with lithovit at 5 g/l, increased dry weight of leaves, bulb and leaves + bulb dry weight/plant at 105 and 135 days after planting, and decreased fresh weight loss percentage in bulbs during storage period (180 days from storage) in both seasons. Also, the interaction between Balady cultivar and spraying with lithovit at 3 g/l, increased yield of grades 1, 2 and 3, exportable, marketable and total yield, as well as average bulb weight. On the other hand, Sides 40 cultivar without spraying with lithovit recorded the maximum values in yield of grade 4 in both seasons.

Horticultura Brasileira, 2019

Correlations and path analysis between characteristics can aid the selection of important attributes in breeding programs. Thus, the objective of this work was to perform genotypic, phenotypic correlations and path analysis under commercial yield of garlic bulbs, depending on morphological and agronomic variables. The experiment was carried out in 2017 at the Universidade Federal dos Vales do Jequitinhonha e Mucuri and Universidade Federal de Lavras, using ten garlic genotypes, eight trials and two commercial cultivars, Caçador and Jonas. We evaluated: plant height; number of leaves, total bulb number; total bulb mass, total bulb yield, marketable bulb yield and number of cloves per bulb. The genotypic and phenotypic correlations were positive and significant between marketable yield of bulbs with bulb mass, total yield and number of cloves per bulb, indicating that selection based on these characteristics will help increase the yield of garlic. However, only the number of cloves pe...

Revista Caatinga, 2016

ABSTRACT: The objective of this work was to evaluate the development and production of semi-noble garlic cultivars subjected to different bulb-seed pre-planting vernalization periods in two municipalities (Barauna and Governador Dix-sept Rosado) of the Western Mesoregion of Rio Grande do Norte State, Brazil. Therefore, two simultaneous experiments were conducted, from April to November, 2012. A complete randomized block experimental design was used with four replications. The treatments were arranged in split-plot design, with the plots consisted of cultivars (Gigante-do-Nucleo and BRS-Hozan) and subplots consisted of bulb-seed pre-planting vernalization (4±1°C) periods (0, 10, 20 and 30 days). In Barauna, the cultivar Gigante-do-Nucleo proved to be adapted, with a yield of 4.56 Mg ha-1 without vernalization, while the BRS-Hozan presented a yield of 4.42 Mg ha-1 when vernalizated for 10 days at pre-planting. In Governador Dix-sept Rosado, the vernalization of 10 days improved the ad...

This study aimed to evaluate the horticultural performance, chemical properties and storage quality of six garlic (Allium sativum L.) genotypes differ in their bulb skin color; three white-coloredbulb genotypes (Egyptian, El-Wady clone, and Clone 24) and three purple-colored-bulb genotypes (Egaseed1, Sids 40, and Clone 21) under Minia governorate growing conditions, Middle Egypt, Egypt using the drip irrigation system. The collected materials were evaluated in a field trial using a Randomized Complete Block Design (RCBD) with four replications in three successive seasons of . Also, the interactions between the tested genotypes and the seasons were studied. Data showed that the tested genotypes differed significantly in their growth characteristics, chemical properties and storage quality. El-Wady Clone showed the highest clove germination percentage; Egaseed1 gave the highest values of average bulb weight, clove weight, total yield, total ash content (TAC), and L-Ascorbic acid (Vitamin C) content. Cultivar Sids40 gave the highest values of dry matter (DM) content and total fractionated oil (TFOs) contents; the Egyptian cultivar gave the highest values of both the total phenolic compound (TPCs) and the total Flavenoides (TFs); while, the lowest values of bulb weight loss during storage for different storing periods were recorded for both Clone 21 and Sids40. Results of this study may be beneficial for garlic growing farmers, traders, customers, storage for consumption or as clove seeds and processing purposes to choose which genotypes are suitable for each of these purposes.

An experiment was conducted in research farm of Kaha, Agricultural Research Center (ARC), Kalubia governorate, Egypt in winter season of 2010/2011 and 2011/2012 to study the effects of different planting dates, cultivars and growing degree days (GDD) on vegetative growth, yield and its components of garlic. The experiment was a split plot design with three replications. The planting date at four different times (Sep.25, Oct. 10, Oct. 25 and Nov. 10) made the main plot and three cultivars (Balady, Sids-40 and White super) constituted the sub-plot. The Maximum and minimum Temperature was recorded during growing season to calculate accumulative growing degree days (GDD). The obtained results showed that planting date on 25 th Sep. combined with all cvs. recorded the highest germination percentage in both seasons whereas, the late planting date (November 10) gave the lowest germination percentage. The Balady cultivar was minimum GDD accumulation when it was emerged after 18.67 day from planting. The 25 th Sep. planting date significantly produced higher means on plant height, number of leaves per plant and leaves weight per plant in the first and second seasons. The super white cultivar combine with planting date Sep. 25 has the height GDD about 1929 and 1345 unit for the two seasons. The yield and its components was increased under early planting date furthermore, under late planting date conditions the yield and its components were significantly decreased. The plating date on Sep. 25 was the highest yield and GDD accumulated compared to other planting date on the 2010-11 and 2011-12 seasons. The lowest yield and GDD was observed by planting on 10 th Nov. in first and second seasons. The White super cultivar produced the highest yield due to increase GDD accumulated followed by Sids-40. Whereas, cv. Balady produce the lower most bulb yield and less GDD in the first and second seasons. The N, P and K contents in the garlic bulbs were increased when garlic seed cloves planted on 25 th Sep. However, the NPK contents in garlic bulbs were decreased with planting date was late.

2022

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