scholarly journals Effect of the Cultivation Systems and Split Fertilizer Applications on the Growth and Yields of Tatsoi (Brassica rapa subsp. narinosa)

2021 ◽  
Vol 18 (21) ◽  
pp. 344
Author(s):  
Kartika Kartika ◽  
Benyamin Lakitan ◽  
Rofiqoh P. Ria ◽  
Hana H. Putri
Keyword(s):  
Leaf Area ◽  
Culture System ◽  
Dry Weight ◽  
Conventional System ◽  
Single Application ◽  
Area Estimation ◽  
Culture Systems ◽  
Npk Fertilizer ◽  
Floating Culture ◽  
Non Destructive

Tatsoi [Brassica rapa subsp. narinosa (L.H.Bailey) Hanelt] is a leafy vegetable with potential for cultivation in a riparian wetland ecosystem. The floating culture system has the advantage of ensuring a sufficient water supply in the growing substrate due to the continuous upward water movement caused by capillarity force. This study evaluated the responses of the tatsoi plant to split fertilizer applications under conventional cultivation and floating culture systems. The fertilizer treatments consisted of control (F0), single (F1), split into 2 (F2), split into 3 (F3) or split into 4 applications (F4). The results showed that early growth of tatsoi was better using floating culture than the conventional system. However, tatsoi adapted well to conventional and floating culture systems as long as sufficient nutrients were available. A single application of 6 g NPK fertilizer (16:16:16 v/v/v) at transplanting provided sufficient nutrients, as indicated by the number of leaves, total leaf area, canopy area, stem dry weight, and leaf dry weight at harvest. The leaf SPAD values in the tatsoi plants were higher in the floating culture system than in the conventional system at 14 and 20 DAT fertilized with a 4-split application. Transplanting occurred 14 days after seed planting (DAP), and harvest occurred 49 days later. A quadratic regression model using leaf length (L), leaf width (W), or L×W as predictors was reliable for non-destructive leaf area estimation in the tatsoi plant. It is recommended for farmers to apply a single NPK fertilizer at the rate of 6 g/plant to achieve an optimum yield in tatsoi cultivated using a conventional or floating culture system. HIGHLIGHTS Tatsoi plant grew well under conventional and floating culture systems as long as sufficient nutrients were available Splitting fertilizer into several times of application did not significantly better than single application of NPK fertilizer at time of transplanting SPAD values in the tatsoi leaves were higher in the floating culture than in the conventional system Length and width of leaves were reliable predictors for non-destructive accurate leaf area estimation in the tatsoi plant GRAPHICAL ABSTRACT

Non-destructive leaf area estimation in banana

1991 ◽  
Vol 45 (3-4) ◽  
pp. 251-254 ◽  
Author(s):  
M.V. Potdar ◽  
K.R. Pawar
Keyword(s):  
Leaf Area ◽  
Area Estimation ◽  
Non Destructive

scholarly journals Determining Water Use and Crop Coefficients of Five Woody Landscape Plants

2006 ◽  
Vol 24 (3) ◽  
pp. 160-165 ◽  
Author(s):  
G. Niu ◽  
D.S. Rodriguez ◽  
R. Cabrera ◽  
C. McKenney ◽  
W. Mackay
Keyword(s):  
Leaf Area ◽  
Water Use ◽  
Culture System ◽  
Growth Parameters ◽  
Growth Index ◽  
Crop Coefficient ◽  
Nerium Oleander ◽  
Culture Systems ◽  
Unit Leaf ◽  
Crop Coefficients

Abstract The water use and crop coefficient of five woody landscape species were determined by growing the shrubs both in 56-liter (15 gal) drainage lysimeters and in above-ground 10-liter containers (#3). Water use per plant, crop coefficient and overall growth parameters differed by species and culture system. Of the five species tested, Buddleia davidii ‘Burgundy’ and Nerium oleander ‘Hardy Pink’ had higher water use per plant in the lysimeters than in the containers. Water use per plant for Abelia grandiflora ‘Edward Goucher’, Euonymus japonica and Ilex vomitoria ‘Pride of Houston’ was the same for the two culture systems. Crop coefficient and growth index of A. grandiflora, E. japonica, and I. vomitoria was similar between the two systems. The growth index of B. davidii and N. oleander was much higher in the lysimeters than in the containers. Abelia grandiflora and E. japonica had more growth in the containers than in the lysimeters while I. vomitoria had slightly larger leaf area in the lysimeters than in the containers. The culture system did not affect the water use per unit leaf area of all species. Therefore, our results indicated that by quantifying the leaf area, the plant water use in the two culture systems is exchangeable.

scholarly journals RESPON PERTUMBUHAN BIBIT CENGKEH (Syzgium aromaticum (L.) Merr dan Perry) KULTIVAR ZANZIBAR AKIBAT PUPUK NPK DAN PUPUK ORGANIK CAIR

2017 ◽  
Vol 4 (1) ◽  
pp. 59
Author(s):  
Yudi Yusdian ◽  
Ridwan Haris
Keyword(s):  
Leaf Area ◽  
Sea Level ◽  
Soil Type ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Stem Height ◽  
West Java ◽  
Randomized Block Design ◽  
Npk Fertilizer

The objective of this research was to study the response on the growth of clove seedling cultivar Zanzibar as the result of using  NPK Phonska fertilizer dosage and liquid organic fertilizer  concentration and to find out the acurate dosage of  NPK Phonska and liquid organic fertilizer  “Getoe”. The experiment was conducted at Kampung Ciherang Desa Gunungtua Kecamatan Cijambe Kabupaten Subang, West Java. The altitude is about 600 m above sea level, the soil type is Ultisol (pH 5,4), the average of rainfall was 1622,10 mm/year and the type of rainfall is C according to Schmidt and Ferrguson (1951). The experiment from March 2014 until June 2014. The experiment was arranged in Randomized Block Design (RBD) consisted of  six treatments, i.e :  A (2,5 g NPK + 0 cc/L of water POC Getoe), B (1,5 g NPK + 2,5 cc/L of water POC Getoe), C (2,0 g NPK + 2 cc/L of water POC Getoe), D (2,5 g NPK + 1,5 cc/L of water POC Getoe), E (3,0 g NPK + 1,0 cc/L of water POC Getoe) and F (3,5 g NPK + 0,5 cc/L of water POC Getoe) and replicated six times respectively. The result of this research showed that combined 2,5 g NPK fertilizer and 1,5 cc Getoe liquid organic fertilizer  concentration  gave the better effect on stem height, leaves of number, leaf area, dry weight of plant and dry weight of root the clove seedling cultivar Zanzibar. 

scholarly journals Non-destructive linear model for leaf area estimation in Vernonia ferruginea Less

2015 ◽  
Vol 75 (1) ◽  
pp. 152-156 ◽  
Author(s):  
MC. Souza ◽  
CL. Amaral
Keyword(s):  
Linear Regression ◽  
Leaf Area ◽  
Leaf Development ◽  
Linear Equations ◽  
Accurate Estimate ◽  
Area Estimation ◽  
Leaf Dimensions ◽  
Non Destructive ◽  
Linear Regressions ◽  
Very High

Leaf area estimation is an important biometrical trait for evaluating leaf development and plant growth in field and pot experiments. We developed a non-destructive model to estimate the leaf area (LA) of Vernonia ferruginea using the length (L) and width (W) leaf dimensions. Different combinations of linear equations were obtained from L, L2, W, W2, LW and L2W2. The linear regressions using the product of LW dimensions were more efficient to estimate the LA of V. ferruginea than models based on a single dimension (L, W, L2 or W2). Therefore, the linear regression “LA=0.463+0.676WL” provided the most accurate estimate of V. ferruginea leaf area. Validation of the selected model showed that the correlation between real measured leaf area and estimated leaf area was very high.

scholarly journals A Simple, Cost-Effective Method for Leaf Area Estimation

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
S. K. Pandey ◽  
Hema Singh
Keyword(s):  
Leaf Area ◽  
Cost Effective ◽  
Botanical Garden ◽  
Area Estimation ◽  
Graph Paper ◽  
Cost Effective Method ◽  
Cost Effective Alternative ◽  
Cost Efficient ◽  
Non Destructive ◽  
Paper Method

Easy, accurate, inexpensive, and nondestructive methods to determine individual leaf area of plants are a useful tool in physiological and agronomic studies. This paper introduces a cost-effective alternative (called here millimeter graph paper method) for standard electronic leaf area meter, using a millimeter graph paper. Investigations were carried out during August–October, 2009-2010, on 33 species, in the Botanical garden of the Banaras Hindu University at Varanasi, India. Estimates of leaf area were obtained by the equation, leaf area (cm2) = x/y, where x is the weight (g) of the area covered by the leaf outline on a millimeter graph paper, and y is the weight of one cm2 of the same graph paper. These estimates were then compared with destructive measurements obtained through a leaf area meter; the two sets of estimates were significantly and linearly related with each other, and hence the millimeter graph paper method can be used for estimating leaf area in lieu of leaf area meter. The important characteristics of this cost-efficient technique are its easiness and suitability for precise, non-destructive estimates. This model can estimate accurately the leaf area of plants in many experiments without the use of any expensive instruments.

Allometric models for non-destructive leaf area estimation in Eugenia uniflora (L.)

2018 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
M. F. Pommpelli ◽  
J. M. Figueirôa ◽  
F. Lozano-Isla
Keyword(s):  
Leaf Area ◽  
Allometric Models ◽  
Eugenia Uniflora ◽  
Area Estimation ◽  
Non Destructive

scholarly journals Non-destructive and Destructive Methods to Determine the Leaf Area of Zucchini

2020 ◽  
Vol 8 (3) ◽  
pp. 295
Author(s):  
Adriano Bicioni Pacheco ◽  
Jéssica Garcia Nascimento ◽  
Larissa Brêtas Moura ◽  
Tárcio Rocha Lopes ◽  
Sergio Nascimento Duarte ◽  
...  
Keyword(s):  
Leaf Area ◽  
Prediction Models ◽  
Standard Procedure ◽  
Efficiency Index ◽  
Estimation Model ◽  
Statistical Parameters ◽  
Important Indicator ◽  
Area Estimation ◽  
Non Destructive ◽  
Destructive Methods

Leaf area estimation is a very important indicator in studies related to plant anatomy, morphology and physiology, and in many cases, it is a fundamental criterion to understand plant response to input conditions. Although there are leaf area prediction models have been produced for some plant species, a leaf area estimation model has not yet been developed for the zucchini. The objective of this paper was to determine the leaf area based on destructive and non-destructive methods for zucchini. The accuracy of measurement methods was evaluated and compared to determinations of the leaf area by the scanning integration method (LICOR equipment LI 3100C), considered as standard procedure. Non-destructive methods consisted of digital photography and measurement of leaf dimensions (width and length) based on ImageJ software. The destructive methods used were a) leaf area integrator LI-3100C, b) determination of leaf mass and c) weighing of leaf discs punched from the leaves. According to statistical parameters that evaluate the performance of the analyzed methods: determination coefficient (R2), Pearson (r) correlation coefficient, Willmott agreement index (d) and Camargo and Sentelhas performance index (c) the parameters presented values higher than 0.8820, classifying the methods as very good, whereas the modeling efficiency index (NSE) and the percentage of bias (PBIAS) also classified the methods as very good (0.87≤NSE≤0.99; -4.80≤PBIAS≤1.40), except the ImageJ method without correction (NSE=0.77; PBIAS = -22.70).

The Relation Between Leaf Production and Wood Weight in First-Year Root Sprouts of Two Populus Clones

1972 ◽  
Vol 2 (2) ◽  
pp. 98-104 ◽  
Author(s):  
Philip R. Larson ◽  
J. G. Isebrands
Keyword(s):  
Leaf Area ◽  
Leaf Surface ◽  
Dry Weight ◽  
First Year ◽  
Leaf Production ◽  
Leaf Surface Area ◽  
Highly Correlated ◽  
The Relationship ◽  
Non Destructive ◽  
Leaf Dry Weight

The relationship between leaf production and wood production in two clones of Populus grown for 1 year under intensive culture was investigated. Wood weight at any one stem position was highly correlated with the cumulative leaf area above that position. About one-half the total stem weight was bark, but the bark/wood ratio decreased with increasing leaf area. Wood specific gravity in creased from stem top to stem base, with mid-stem values of about 0.35. Leaf surface area and leaf dry weight were highly correlated with leaf lamina length; the latter therefore provides an easily measured, non-destructive estimate of photosynthesizing leaf surface. Marked clonal differences existed in all parameters measured.

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