scholarly journals Effects of ripening conditions on the following season's growth and yield components for Pinot noir and Gewurztraminer grapevines (Vitis vinifera L.) in a controlled environment

OENO One ◽  
2003 ◽  
Vol 37 (1) ◽  
pp. 39
Author(s):  
Eric Duchêne ◽  
Nathalie Jaegli ◽  
R. Salber ◽  
Jean-Pierre Gaudillère

<p style="text-align: justify;">Two levels of leaf/area ratio were created for two varieties of grapevine (<em>Vitis vinifera</em> L.) in a glasshouse. Carbohydrate and free amino acids concentrations in the pruning wood were significantly reduced when the leaf/fruit ratio was low. In the following season, growth parameters were affected as well as yield components such as the number of shoots per plant, the number of inflorescences per shoot, the number of flowers per inflorescence and the number of berries per cluster. Fruit set was however not altered. Weight of grapes at fruit set was reduced by 68% for Gewurztraminer and by 46 % for Pinot noir.</p>

OENO One ◽  
2003 ◽  
Vol 37 (2) ◽  
pp. 103
Author(s):  
Eric Duchêne ◽  
Christine Monamy ◽  
François Langellier ◽  
Nathalie Jaegli ◽  
R. Salber ◽  
...  

<p style="text-align: justify;">In order to assess the effects of reserves level on yield components in the following season, two leaf/fruit ratio were created on three trials in 2000 in the vineyard in Alsace, Burgundy and Champagne for different varieties. Significant differences did not exist for all the situations but could affect the leaf area as well as the potential photosynthetic activity in the following season. Hedging weights were sometimes reduced up to 30%. Yield components such as the number of primary shoots, the number of inflorescences per plant and the number of flowers per inflorescence could be affected in 2001. Analysis of the effects of growth on fruit set showed that whereas the number of berries per shoot appeared related to the leaf area on the main stem, the growth of laterals, also enhanced by good ripening conditions during the previous season, could be detrimental to seed formation. Yield reduction reached 30 % for Gewurztraminer but could also be observed on Chardonnay or Pinot noir.</p>


2020 ◽  
Vol 57 (4) ◽  
pp. 302-309
Author(s):  
Sukanta Pal ◽  
Megha Sana ◽  
Hirak Banerjee ◽  
Lhingneikim Lhungdim

Effect of nitrogen and bio-fertilizer on growth and productivity of hybrid rice (cv. PHB 71) was assessed during dry seasons of 2017 and 2018 at Research Farm of BCKV under new alluvial zone of West Bengal. The experiment was laid out in factorial randomized block design with 12 treatment combinations having 4 levels of N and 3 types of bio-fertilizer replicated thrice. Application at 180 kg N/ha produced tallest plants at 90 DAT with maximum LAI (60 DAT), DMA (90 DAT), tillers/hill (90 DAT) and CGR (30-60 & 60-90 DAT). The same N rate resulted in highest panicles/m2, panicle length, panicle weight, filled grains/panicle and 1000-grain weight. A decrease in N dose from 180 to 150 kg/ha caused reduction in all those yield components; however, the variation was non-significant except for number of panicles/m2. Maximum grain yield, straw yield and harvest index was also achieved with 180 kg N/ha accounting 120.1, 34.9 and 32.8% more than the values obtained with zero-N; however, it was statistically at par with the yields and HI obtained with 150 kg N/ha. The Azospirillum application increased all the growth parameters, yield components and yield of hybrid rice over other tested bio-fertilizers (Azospirillum > PSB > K mobilizer), accounting 5.9 and 8.8% more than the yields obtained with PSB and K mobilizer. The interaction of N and bio-fertilizer exerted significant effect on growth attributes but failed to record any significant variations in yield components and yield of hybrid rice. The maximum economic benefit was achieved with combined application of 180 kg N/ha and Azospirillum.


2020 ◽  
Vol 30 (1) ◽  
pp. 65
Author(s):  
Wiwin Setiawati ◽  
Ahsol Hasyim ◽  
Bagus Kukuh Udiarto ◽  
Abdi Hudayya

<p>Penggunaan pupuk hayati dan unsur hara makro sekunder seperti magnesium (Mg) dan hara mikro boron (B) diketahui dapat meningkatkan pertumbuhan, kualitas hasil tanaman, meningkatkan unsur hara dalam tanah serta mampu meningkatkan ketahanan tanaman terhadap serangan hama dan penyakit. Selain itu penggunaan pupuk tersebut dapat mengurangi kebutuhan terhadap pupuk kimia sintetis. Tujuan penelitian adalah mengetahui pengaruh aplikasi Mg, B, dan kombinasinya dengan pupuk hayati terhadap pertumbuhan dan hasil panen serta penekanan serangan hama dan penyakit. Penelitian dilakukan di Kebun Percobaan Balai Penelitian Tanaman Sayuran, Lembang, Jawa Barat (1.250 m dpl.) dari bulan Juni 2018 sampai bulan Februari 2019. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok terdiri atas delapan perlakuan dan empat ulangan. Perlakuan yang diuji adalah aplikasi Mg, B, dan kombinasi dengan pupuk hayati serta teknologi konvensional sebagai pembanding. Pengamatan dilakukan terhadap pertumbuhan tanaman (tinggi tanaman dan luas kanopi), komponen hasil dan hasil serta serangan hama dan penyakit penting yang menyerang tanaman cabai. Hasil penelitian menunjukkan bahwa kombinasi Mg, B, dan pupuk hayati yang diaplikasikan sebanyak dua kali pada umur 30 HST dan 45 HST mampu meningkatkan produktivitas cabai sebesar 21,68 ton/ha atau meningkat sebesar 54,53% dibandingkan dengan kontrol. Peningkatan produktivitas cabai terjadi karena adanya perbaikan dalam komponen hasil seperti jumlah bunga, jumlah buah, panjang, dan bobot buah serta adanya penekanan terhadap serangan hama dan penyakit seperti trips, antraknosa, lalat buah, dan penggerek buah sebesar 18,10% sampai 23,93%.</p><p><strong>Keywords</strong></p><p><em>Capsicum annuum</em>; Unsur hara makro; Pupuk hayati; Produktivitas; Organisme pengganggu tumbuhan</p><p><strong>Abstract</strong></p><p>The use of biofertilizer and macro and micro nutrients enhanced the growth and development, yield quality of vegetable crops as well as nutrient status of soil to a greater extent and to increased on pests and diseases resistance. Organic sources of nutrients including biofertilizers also economize the use of chemical fertilizers. The objectives of this study were to determine the best combination of Mg, B, and biofertilizer that increase the growth and yield of chili pepper and the impact to pest and diseases on chili pepper. The field experiment was conducted at the experimental field of the Indonesian Vegetable Research Institute, Lembang, West Java from June 2018 to February 2019. The experiment was arranged in a Randomized Block Design with eight treatments and four replicated. The treatments were Mg, B, and their combinations with biofertilizer compared to the conventional technologies as a control. The observations were carried out on the growth parameters (plant height and leaf canopy), yield components, pest and diseases of chili pepper. The results showed that the combinations of Mg, B, and biofertilizer increased the yield of chili up to 21.68 ton/ha or positive interaction beside beneficial agent with Mg, B, and biofertilizer package on 54.53%. Increased productivity of chili occurs because of improvements in yield components such as the number of flowers, number of fruits, fruit length and fruit weight and reduction of pest and disease attacks such as thrips, anthracnose, fruit flies and, fruit borers by 18.10% to 23.93%.</p>


Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 90 ◽  
Author(s):  
José Casanova-Gascón ◽  
Pablo Martín-Ramos ◽  
Clara Martí-Dalmau ◽  
David Badía-Villas

Lime-induced chlorosis (LIC) is an important abiotic constraint affecting the growth and yield of grapevines growing in calcareous soils in the Mediterranean region, and the sensory properties of the produced wine. In the work presented herein, the impact of LIC on the nutritional status and chlorophyll content was assessed for eleven varieties and a clone (Merlot, Pinot Noir, Cabernet Sauvignon, Tempranillo, Parraleta, Moristel, Aglianico, Macabeo, Sauvignon, Chardonnay, and Riesling), grafted to the same rootstock (1103 Paulsen). Macro- and micronutrient contents were determined in the fruit set and veraison stages by petiole analyses, while chlorophyll content in young leaves was monitored by SPAD. Significant differences were detected amongst varieties for all nutrients (including Fe), and inverse relationships between Fe and P contents in the petiole and chlorophyll concentration in the young leaves were found. Regarding LIC resistance, the Fe and chlorophyll contents suggest that Cabernet Sauvignon, Tempranillo and Aglianico varieties would show the best performance, while Sauvignon would be the least tolerant.


2019 ◽  
Vol 48 (1) ◽  
pp. 22-33 ◽  
Author(s):  
Igor Palčić ◽  
Ana-Marija Jagatić Korenika ◽  
Snježana Jakobović ◽  
Igor Pasković ◽  
Nikola Major ◽  
...  

1967 ◽  
Vol 68 (3) ◽  
pp. 317-324 ◽  
Author(s):  
E. J. M. Kirby

1. Cereal plant density affects yield and growth parameters of fundamental importance. An experiment is described in which growth and development, and yield and yield components of barley grown over a wide range of density were examined.2. Four varieties of barley—Proctor, Plumage-Archer, Domen, and Moore—were grown at densities approximately equivalent to 35, 70, 140 and 280 lb/acre. Density was found not to affect seedling establishment or plant survival, but there was a variety effect on seedling establishment.3. Varietal differences were seen in maximum tiller number, and the percentage of tillers surviving to form ears. These differences were most marked between the six-row variety and two-row varieties. The effect of increasing density was to increase the maximum tiller number, but this was followed by different rates of tiller death until early June, after which there was no further compensation for tiller number. Ear emergence and ear number were affected both by variety and density.


2011 ◽  
Vol 45 (4) ◽  
pp. 331-336
Author(s):  
NK Paul ◽  
MA Qaiyyum

Effect of three levels of irrigation viz., no irrigation (I0), irrigation once a month (I1) and irrigations twice a month (I2) on some growth attributes and leaf yield and some of its components of five mulberry varieties were studied in field condition. Significant effect of irrigation on relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio (LAR), and relative leaf growth rate (RLGR) was observed. lrrigation also had significant effect on leaf yield and some of its components. The overall results indicated that twice irrigations in a month with mulberry variety BM-4 could be used for higher leaf yield. Key words: Mulberry; lrrigation; Growth parameters; Leaf yield DOI: 10.3329/bjsir.v45i4.7331 Bangladesh J. Sci. Ind. Res. 45(4), 331-336, 2010


OENO One ◽  
2000 ◽  
Vol 34 (1) ◽  
pp. 19
Author(s):  
Alberto Miele ◽  
Alain Carbonneau ◽  
Jacques Bouard

<p style="text-align: justify;">The composition of free amino acids was studied from leaves, pericarps, skins, musts and seeds of <em>Vitis vinifera</em> L. cv. Cabernet Sauvignon. Vineyards were in the Bordeaux region and the grapevines were conducted in espalier and lyre systems. Grapes were collected at maturity and lyophilized after sampling. Extraction of free amino acids was done with a hydroalcoholic solution and their analysis was performed with an autoanalyzer. A standard of 34 amino acids was utilized for the qualitative analysis. The results showed that, for both espalier and lyre training systems, respectively, the free amino acids were predominant in the pericarps (12.85 and 11.21 mg/g dw) - 16.88 and 15.12 mg/g dw in skins and 3.29 and 2.88 g/l in musts -, followed by the seeds (2.37 and 2.32 mg/g dw) and leaves (1.87 and 1.98 mg/g dw). The most abundant free amino acids in leaves were glutamic acid (23.8 and 28.8 p. cent), aspartic acid (8.8 and 11.1 p. cent), and glutamine (10.1 and 9.4 p. cent). Proline (41.8 and 41.5 p. cent) and arginine (22.8 and 22.4 p. cent) predominated in the pericarps. In seeds, the main amino acids were proline (14.5 and 15.8 p. cent), arginine (11.0 and 11.8 p. cent), histidine (11.2 and 8.7 p. cent), and glutamic acid (11.3 and 8.2 p. cent). Grapevine training system showed some differences in the total amount and in the percentages of each free amino acid, but the pattern of these compounds for each tissue was similar for both training systems.</p>


Author(s):  
M. Ramanjineyulu ◽  
V. K. Paulpandi ◽  
V. Geethalakshmi ◽  
C. Vanniarajan ◽  
N. S. Venkataraman ◽  
...  

A field experiment was conducted during kharif-2017 at Agricultural College and Research Institute, Madurai in a factorial randomized block design. The present research was designed by nine treatment combinations considering three dates of sowing D1: II fortnight of June, D2 : I fortnight of July and D3 : II fortnight of July and three nitrogen levels N1: RDN (80 kg ha-1), N2 : 75% RDN (60 kg ha-1) and N3 : 125% RDN (100 kg ha-1) to study the growth and yield components of pearlmillet grown with variety CO (Cu) 10. The crop sown on I fortnight of July with 125 % RDN recorded maximum growth parameters, yield components and recorded significantly highest grain yield. The lowest was recorded in crop sown on II fortnight of July with application of 75% RDN.


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