scholarly journals Environmental and physiological effects on cross-ability and seed production of greenhouse cucumber

2019 ◽  
Vol 41 (2) ◽  
pp. 134-143
Author(s):  
Maryam Golabadi ◽  
Sezai Ercisli ◽  
Forough Ahmadi
Keyword(s):  
Seed Production ◽  
Block Design ◽  
Young Male ◽  
Male Flower ◽  
Early Morning ◽  
Randomized Complete Block Design ◽  
Flower Age ◽  
Greenhouse Cucumber ◽  
Male Flowers ◽  
Empty Seeds

Abstract: Seed production depends on many factors. In this study, two independent experiments were carried out to investigate the effects of pollination time, crossed node spacing, male flower age, number of crossings on each plant and deletion/non-deletion of other fruits in the crossed nodes on the cross-ability and seed production in greenhouse cucumber. In every experiment, three mentioned factors were assayed based on factorial experiment as a randomized complete block design. Crosses were done on 10 plants in every replication of treatments. The results showed that pollination at 8:00‒9:45 AM, led to higher amount of full seed weight in contrast to other times of pollination. Increasing crossed node spacing from 2‒3 to 4‒5 nodes led to an increase in the number of empty seeds, which was ascribed to the reduced seed production. The highest amount of number of seeds per fruit, seed weigh and number of full seeds were obtained when young male flowers were used. Moreover, higher seed production was obtained from five, instead three crossings on each plant, and the non-deletion of fruits on the crossed nodes. Overall, higher percentage of seed production per fruit was obtained when crossing was done with young male flower in early morning and high number of crossing in every plant.

scholarly journals The response of Stecklings Age and Plant Spacing on Carrot Seed Quality and Production

2020 ◽  
Vol 3 (2) ◽  
pp. 71
Author(s):  
Fatiani Manik ◽  
Rasiska Tarigan ◽  
Susilawati Barus
Keyword(s):  
Seed Production ◽  
Field Trial ◽  
Seed Quality ◽  
Block Design ◽  
Plant Spacing ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Carrot Seed

The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.

scholarly journals Planting Time Effect on Quality Seed Production of Three Varieties of Carrot (Daucus Carota L.)

2021 ◽  
Vol 23 (2) ◽  
pp. 23-34
Author(s):  
Lutfunnahar ◽  
MF Hossain ◽  
MA Malek ◽  
R Kamrunnahar ◽  
J Hossain
Keyword(s):  
Seed Production ◽  
Seed Yield ◽  
Block Design ◽  
Time Effect ◽  
Cool Temperature ◽  
Treatment Combination ◽  
Planting Time ◽  
Daucus Carota L ◽  
Randomized Complete Block Design ◽  
Carrot Seed

Crop management like planting time is a crucial factor for maximizing yield especially for seed production. Seed production of carrot is greatly influenced by temperature as it requires adequate periods of cool temperature (vernalization) for flowering and seed production. To find out optimum planting time of carrot steckling for quality seed production the experiment was conducted at the Field Laboratory of Horticulture Farm, Bangladesh Agricultural University, Mymensingh during the period from October 2015 to May 2016.Three planting time viz. 05 January, 15 January and 25 January on the seed production of three carrot varieties viz. BA (Brasillia Agroflora), PA (Prima Agroflora) and NK (New Kuroda) which constituted 9 treatment combinations were included in the experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Planting time had significant effect on most of the parameters studied. The January 05 planting of steckling gave the highest seed yield (527.92 kg ha-1) and the lowest was in January 25 planting of steckling (314.75 kg ha-1). Among the varieties BA gave the highest seed yield (448.73 kg ha-1) and the lowest yield for New Kuroda (395.35 kgha-1.) Considering interaction of planting time and variety the highest seed yield (572.37 kg ha-1) was obtained from the treatment combination of early planting (05 January) with the variety of BA and the lowest (279.77 kg ha-1) was recorded from the late planting (25 January) in variety PA. Hence, BA carrot variety planting on 5 January may be recommended for carrot seed production in Mymensingh region in Bangladesh. Bangladesh Agron. J. 2020, 23(2): 23-34

scholarly journals Effect of Different Levels of Nitrogen & Phosphorus Fertilizer and Roguing on Seed Production of Rice in Bangladesh

2019 ◽  
pp. 1-8
Author(s):  
Afia Sultana ◽  
Mohammad Salim ◽  
Md Abdul Kader ◽  
Md. Babul Akter ◽  
M. Kamruzzaman ◽  
...  
Keyword(s):  
Grain Yield ◽  
Seed Production ◽  
Block Design ◽  
Experimental Result ◽  
Phosphorus Fertilization ◽  
Nitrogen And Phosphorus ◽  
Randomized Complete Block Design ◽  
Significant Yield ◽  
Different Levels ◽  
P Fertilizers

An experiment was conducted at the Farmer’s Field, Boyra village, Mymensingh, Bangladesh during the period from February to May 2016 to study the yield performance of boro rice for seed production as influenced by nitrogen and phosphorus fertilization with different levels of roguing. The experiment comprised three levels of roguing viz. no roguing (R0), roguing one time (R1) and roguing two times (R2) and five doses of N and P fertilizers viz. Farmer practice (F1: 250 kg urea and 260 kg TSP), Optimum/recommended (F2: 187 kg urea and 200 kg TSP), High N (F3: 200 kg urea and 200 kg TSP), High P (F4: 187 kg urea and 240 kg TSP) and High N + High P (F5: 200 kg urea and 240 kg TSP). The experiment was laid out in a randomized complete block design with three replications. Results revealed that the Optimum doses of fertilizer applications significantly produced the highest grain yield among the treatments. All the yield contributing characters showed the best performance in this treatment. Though roguing did not produce significant yield variation but the interaction effects did. Here, The Optimum doses of fertilizer without roguing (F2R0) produced highest grain yield but it was at per with F3R1, F2R2, F2R1, F4R1 and F5R2 treatments. Among the five statistically alike treatments F2R2 i.e. optimum fertilizer dose with two rougings produced the highest number of filled grains per panicle and highest seed germination and appreciably higher percentage of pure seed. Based on this experimental result, it appears that optimum fertilizer dose with two times rouging treatment performed the best for seed production in BRRI dhan29.

scholarly journals PENGARUH PEMBERIAN BORON DAN WAKTU PEMANENAN POLEN TERHADAP PENINGKATAN PRODUKSI DAN VIABILITAS POLEN TETUA JANTAN SEMANGKA (Citrullus lanatus Thunberg.)

2019 ◽  
Vol 1 (2) ◽  
pp. 203-212
Author(s):  
Aris Susanto ◽  
Sri Hartatik ◽  
Muh. Burhan Rosyidi
Keyword(s):  
Seed Production ◽  
Fruit Set ◽  
Citrullus Lanatus ◽  
Research Result ◽  
Male Flower ◽  
Random Group ◽  
High Viability ◽  
Hybrid Seeds ◽  
Male Flowers ◽  
Factorial Design Of Experiments

Pollen management is one of the important factors in the production of hybrid seeds. The main obstacle in the seed production of hybrid watermelon are the appearance of the flowers do not coincide, and limited the availability of pollen with high viability. This research aims to the of dosage of boron and pollen harvesting time the pollen production and viability of pollen watermelon male parent. The research was done on a farm Seed Production Research Land of PT. Benih Citra Asia, sub-district Ajung, districts Jember and done with a random group of factorial design of experiments, with the first factor: 4 level doses of boron, and the second factor: 3 time harvesting the pollen, with each combination treatment is repeated as many as three times. The research result of which demonstrate of application of boron 1,0 kg ha-1 and time of harvesting the pollen pre-anthesis produces the successs of pollination to 100%. The boron dosage 1 kg ha-1 is able to give the age of male flowers faster which is 25,89 DAP, and the age of female flowers is faster which is 31,67 DAP, and produces a higher fruit set that is 94,44%. The time for harvesting pollen in anthesis phase produces the highest pollen germination, which 63,81%.Keywords: male flower, media Brewbaker and Kwack, germination pollen, fruit set

scholarly journals Effect of foliar spray of GA3 and NAA on sex expression and yield of bitter gourd

2019 ◽  
Vol 44 (2) ◽  
pp. 281-290
Author(s):  
R Khatoon ◽  
M Moniruzzaman ◽  
M Moniruzzaman
Keyword(s):  
Gibberellic Acid ◽  
Block Design ◽  
Foliar Spray ◽  
Sex Expression ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Bitter Gourd ◽  
Yield Attributes ◽  
Randomized Complete Block Design ◽  
Male Flowers

A field experiment was conducted at the Plant Physiology field of Horticulture Research Center, BARI, Gazipur during two consecutive years of kharif 2014 and 2015 to assess the effect of GA3 and NAA on sex expression, yield and yield components of bitter gourd (Momordica charantia L.) var. BARI Karola-1. Eeleven treatments comprising five concentrations each of gibberellic acid (50, 100, 150, 200 and 300 ppm) and naphthalene acidic acid (50, 100, 150, 200 and 300 ppm) along with distilled water considered as control were evaluated in randomized complete block design with three replications. Gibberellic acid (GA3) and Naphthalene acidic acid (NAA) were sprayed at 4 leaf stage; second spray was done at 35-38 DAS and third spray done at flowering stage. All the treatments improved the flowering and yield characters over control. Foliar spray of NAA @ 150 ppm and 200 ppm was found better in terms of sex expression, yield and yield attributes of bitter gourd as compared to control and other treatments. Spray of NAA @ 150 ppm gave the lowest number of male flowers and the highest number of female flowers thereby produced the lowest sex ratio (male:female). Number of fruits/plant, individual fruit weight and fruit yield/plant were also found maximum from NAA 150 ppm. Maximum fruit yield was recorded with the application of NAA @ 150 ppm. Spraying of NAA @ 150 ppm gave the maximum gross return and net return with the highest BCR of 3.17. Bangladesh J. Agril. Res. 44(2): 281-290, June 2019

Pengaruh Beberapa Konsentrasi Hyrasil Terhadap Pembungaan Tanaman Melon (Cucumis melo L.)

Agrotek ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Liz Yanti Andriyani
Keyword(s):  
Experimental Design ◽  
Sea Level ◽  
Cucumis Melo ◽  
Block Design ◽  
The Other ◽  
Experimental Station ◽  
Randomized Complete Block Design ◽  
Male Flowers ◽  
Cucumis Melo L ◽  
Female Flowers

<em>The objective of the experiment was to observe the best Hydrasil� concentration to the flowering of �melon� to increase the yield of melon </em>(<em>Cucumis melo</em> L.)<em> . The experiment was conducted at Jambi University experimental station, which is located in an altitude of ��35 m above the sea level.� The experimental� design was randomized complete block design with 4 replications and 6 treatment levels of Hydrasil concentration, ie. : H<sub>0 =� </sub>none� Hydrasil treatment, H<sub>1 =� </sub>100 ppm� Hydrasil, H<sub>2 =� </sub>200 ppm�� Hydrasil, H<sub>3 =� </sub>300 ppm� Hydrasil, H<sub>4 =� </sub>400 ppm� Hydrasil, H<sub>5 =� </sub>500 ppm� Hydrasil. The results� showed that Hydrasil concentration� significantly affected number of female �flowers and number of male� flowers per plant. �Hydrasil concentration at� 200 ppm�� gave �more� number of female �flowers �per plant and� less �number of male �flowers per plant than the other treatments.</em>

scholarly journals Çukurova Ekolojik Koşullarında Lavender (Lavandula angustifolia Mill.) de Diurnal Varyabilitenin Bazı Verim ve Kalite Özelliklerine Etkisinin Belirlenmesi

2019 ◽  
Vol 7 (3) ◽  
pp. 531 ◽  
Author(s):  
Çiğdem Sönmez ◽  
Hülya Okkaoğlu
Keyword(s):  
Essential Oil ◽  
Oil Content ◽  
Block Design ◽  
Early Morning ◽  
Oil Yield ◽  
Lavandula Angustifolia ◽  
High Drug ◽  
Randomized Complete Block Design ◽  
Essential Oil Yield ◽  
Herb Yield

Lavender as called Lavandula angustifolia Mill. is used for many purposes such as pharmaceutical, cosmetics etc industry. The aim of this study is to determine the effects of different harvest hours on yield, essential oil and essential oil yield in lavender. The research was conducted a randomized complete block design with three replications under Karaisalı/Adana ecological conditions. Flowering lavender plants were harvested every two hours starting from 8 am at five different times. The fresh herb yield, dry herb yield, drug flos yield, essential oil content and essential oil yield were determined in 2014 and 2015. The highest means were obtained from harvestings at 8 in morning when lowest means were recorded at harvesting at 14 in afternoon for both drug flos and essential oil yield in similar. Based on the results from research of two years, it was concluded that it would be suitable to harvest in early morning for obtaining high drug flos and essential oil yields.

scholarly journals Fall-bearing Year Herbicides and Spring-nonbearing Year Foramsulfuron Applications for Hair Fescue Management in Lowbush Blueberry

2020 ◽  
Vol 30 (6) ◽  
pp. 670-676
Author(s):  
Scott Neil White ◽  
Linshan Zhang
Keyword(s):  
Seed Production ◽  
Seedling Recruitment ◽  
Block Design ◽  
Perennial Grass ◽  
Interactive Effects ◽  
Production Cycle ◽  
Seedling Density ◽  
Vaccinium Angustifolium ◽  
Lowbush Blueberry ◽  
Randomized Complete Block Design

Hair fescue (Festuca filiformis) is a tuft-forming perennial grass that reduces yields in lowbush blueberry (Vaccinium angustifolium) fields. Nonbearing year foramsulfuron applications suppress hair fescue, but there is interest in increasing suppression through foramsulfuron use in conjunction with fall-applied herbicides. The objective of this research was to determine the main and interactive effects of fall-bearing year herbicide applications and spring-nonbearing year foramsulfuron applications on hair fescue. The experiment was a 5 × 2 factorial arrangement of fall-bearing year herbicide (none, terbacil, pronamide, glufosinate, dichlobenil) and spring-nonbearing year foramsulfuron application (0, 35 g·ha−1) arranged in a randomized complete block design at lowbush blueberry fields in Portapique and Stewiacke, Nova Scotia, Canada. Spring-nonbearing year foramsulfuron applications did not reduce total tuft density or consistently reduce flowering tuft density, flowering tuft inflorescence number, or flowering tuft seed production. Fall-bearing year pronamide applications reduced hair fescue density for the 2-year production cycle, although additional bearing year density reductions occurred when pronamide was followed by spring-nonbearing year foramsulfuron applications at Stewiacke. Fall-bearing year dichlobenil applications reduced total and flowering tuft density at each site, although reductions in flowering tuft inflorescence number and seed production were most consistent when followed by spring-nonbearing year foramsulfuron applications at Stewiacke. Suppression extended into the bearing year at each site, and dichlobenil should be examined further for hair fescue control. Fall-bearing year glufosinate applications reduced hair fescue total tuft density at each site and flowering tuft density and flowering tuft seed production at Stewiacke. Fall-bearing year glufosinate applications followed by spring-nonbearing year foramsulfuron applications also reduced nonbearing year flowering tuft inflorescence number and bearing year hair fescue seedling density at Stewiacke, indicating that this treatment may reduce hair fescue seedling recruitment at some sites. Fall-bearing year terbacil applications did not suppress hair fescue and are not recommended for hair fescue management in lowbush blueberry.

scholarly journals The Effect of Phosphorus and Potassium on the Growth and Quality of Viola (Viola cornuta L.) Seed Production

2019 ◽  
Vol 35 (1) ◽  
pp. 12
Author(s):  
Alfa Sada Saputra ◽  
Suprihati Suprihati ◽  
Endang Pudjihartati
Keyword(s):  
Seed Production ◽  
Block Design ◽  
Ornamental Plants ◽  
Media Analysis ◽  
Germination Energy ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Phosphorus And Potassium ◽  
Generative Stage

<p>Viola cornuta L. is an ornamental plant that is primarily propagated by high-quality seeds that have high demand in subtropical countries. The use of fertilizers according to recommendations results in the growth of parent plants below the standard. Furthermore, seed production is generated below 2 g per plant and the seed germination capacity is below 80%. In addition, phosphorus (P) and potassium (K) nutrients can increase the growth and seed production of the plants, including ornamental plants. The study aimed to determine the influence of P and K nutrients on growth and seed production of V. cornuta L. Research was carried out in November 2018 - January 2019 at PT. Selektani Horticulture, Ngablak, Magelang. There were seven treatments with four replications. Experiments were arranged according to the Randomized Complete Block Design (RCBD). Plants were grown in 5l volume-polybags. Fertilization was done by watering the planting media. Analysis of variance was performed at 95% accuracy. The study shows that P and K nutrients have a highly significant effect on height, number of flowers, number of seed per capsule, seed production and germination energy and significantly affected the number of leaves. The addition of both P and K fertilizers in the vegetative and P in the generative stage (P6) can result in the productivity of 3.28 g plant-1 and produce germination energy ≥90%. It is recommended for increasing growth and seed production.</p>

scholarly journals Flower Development and Its Implication for Seed Production on Amorphophallus muelleri Blume (Araceae)

2016 ◽  
Vol 7 (2) ◽  
pp. 65 ◽  
Author(s):  
Edi Santosa ◽  
Adolf Pieter Lontoh ◽  
Ani Kurniawati ◽  
Maryarti Sari ◽  
Nobuo Sugiyama
Keyword(s):  
Seed Production ◽  
Morphological Characteristics ◽  
Male Flower ◽  
Female Flower ◽  
Flowering Phenology ◽  
Flower Morphology ◽  
Bud Break ◽  
Male Flowers ◽  
Positive Correlations ◽  
Artificial Shading

<p><em>ABSTRACT</em></p><p><em>There are many studies on agronomic and economic advantages of iles-iles (<span style="text-decoration: underline;">Amorphophallus</span> <span style="text-decoration: underline;">muelleri</span> Blume), leading to high demand on seed to support the rapid production expansion in many Asian countries. By contrast, there are few studies on flowering phenology and flower morphology although they affect the seed production. Therefore, we evaluated flowering phenology and flower morphology of 80 plants of <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">muelleri</span> grown in a field under 65% artificial shading net </em><em>at Leuwikopo Experimental Farm IPB Darmaga, Bogor</em><em>,</em><em> Indonesia </em><em>from May 2015 to July 2016 in order to improve seed production. <span style="text-decoration: underline;">A.</span> <span style="text-decoration: underline;">muelleri</span> produced solitary spadix, with female flowers at the lower part and male flowers at the upper part. Spadix grew slowly for 56-71 days after bud break, and then grew rapidly thereafter for 30-35 days until anthesis. Seed was harvested 9.6 to 10.2 months after anthesis. We devided the development of spadix into seven phases, bud break as stage I and berry maturity as stage VII. Stage VI to VII determined seed production. Seed production was also affected by roots<del cite="mailto:Windows%207" datetime="2016-10-31T14:49"></del> formation and spadix size. There were strong positive correlations between lengths <del cite="mailto:Windows%207" datetime="2016-10-31T14:50"></del>of the female zones with berry production. Some morphological characteristics of spadix were dependent on corm size, thus, it was <del cite="mailto:Windows%207" datetime="2016-10-31T14:50"></del><ins cite="mailto:Windows%207" datetime="2016-10-31T14:50"></ins>likely that agronomic improvement to enhance </em><em>female </em><em>flower and corm sizes was<ins cite="mailto:Windows%207" datetime="2016-10-31T14:50"></ins>important in seed production.</em></p><p align="left"><em>Keywords: developmental s<del cite="mailto:Windows%207" datetime="2016-10-25T11:44"></del><ins cite="mailto:Windows%207" datetime="2016-10-25T11:44"></ins>tage, female flower, iles-iles, male flower, seed production</em><em></em></p><p> </p><p>ABSTRAK</p><p>Telah banyak kajian keunggulan agronomi dan ekonomi iles-iles (<em>Amorphophallus muelleri</em> Blume), sehingga mendorong peningkatan permintaan benih untuk mendukung perluasan areal produksi di banyak negara Asia. Namun demikian, kajian fenologi dan morfologi bunga khususnya terkait produksi benih masih terbatas. Oleh karena itu, kami mengkaji perkembangan dan morfologi 80 bunga iles-iles yang ditanam di bawah paranet 65% di Kebun Percobaan <ins cite="mailto:Windows%207" datetime="2016-10-31T14:50"></ins><ins cite="mailto:Windows%207" datetime="2016-10-31T14:50"></ins>Leuwikopo IPB, Bogor, Indonesia dari Mei 2015 sampai Juli 2016 dalam rangka perbaikan produksi benih. Iles-iles menghasilkan sebuah tongkol bunga dengan bunga betina pada bagian bawah dan bunga jantan pada bagian atas. Tongkol bunga tumbuh lambat 58-71 hari setelah pecah tunas, diikuti tumbuh cepat 30-35 hari hingga antesis, dan biji dipanen 9.6 sampai 10.2 bulan setelahnya. Perkembangan bunga dari pecah tunas hingga buah matang dapat dibagi menjadi tujuh tahap. Tahap VI ke tahap VII menentukan keberhasilan produksi biji iles-iles. Selain itu, keberhasilan produksi biji juga dipengaruhi oleh keberadaan akar dan ukuran tongkol khususnya panjang bagian bunga betina. Beberapa karakter morfologi bunga iles-iles<em> </em>dipengaruhi oleh ukuran umbi saat tanam. Oleh karena itu, perlu perbaikan agronomis untuk meningkatkan ukuran umbi dan ukuran bunga betina guna mendukung produksi benih.</p><p>Kata kunci: bunga <del cite="mailto:Windows%207" datetime="2016-10-25T11:44"></del><ins cite="mailto:Windows%207" datetime="2016-10-25T11:44"></ins>betina, bunga jantan, iles-iles, produksi benih, tahap pertumbuhan</p>

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