Results 91 to 100 of about 58,703 (187)
Revista de la Facultad de Ciencias Agrarias, 2019 The objective of this study was to evaluate the morphogenetic and structural characteristics of Piatã grass under rotational stocking and nitrogen fertilization during the seasons.
Lorraine do Nascimento Farias +7 more
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, 2009 Nitrogen is an essential nutrient for crop growth. The demand for nitrogen in the potato crop is relatively high. However, in organic farming nitrogen input is rather limited, compared with conventional farming.
Tiemens-Hulscher, M. +2 more
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Does increased leaf appearance rate enhance adaptation to postanthesis drought stress in sorghum?
, 2011 Increased leaf appearance rate (LAR) could reduce preanthesis water use of sorghum [Sorghum bicolor (L.) Moench] by restricting plant size via reduced tillering.
van Oosterom, E. J. +11 more
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Identification of microclimatic variables determining the appearance of the symptoms of a leaf disease: case of the coffee leaf rust [PDF]
, 2018 Coffee leaf rust (Hemileia vastatrix) caused major epidemics since 2012 in Central America. In order to prevent future epidemics, PROCAGICA program (Programa Centroamericano de Gestión Integral de la Roya del Café) aims to the creation of a warning system with an epidemic forecast component based on meteorological variables.
Merle, Isabelle +3 more
openaire
Frogeye Leaf Spot Making an Appearance Across Iowa Soybeans
, 2018 Iowa State University Extension and Outreach field agronomists have reported the appearance of frogeye leaf spot in soybeans as much of the crop across Iowa enters the R3-R5 growth stage.
Stoetzer, Ethan
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Modelling variation in the physiology of Bambara Groundnut (Vigna subterranea (L.) Verdc. ) [PDF]
, 2005 The aim of this PhD project was to construct a model based on physiological and socio-economic factors related to the growth, development and yield of bambara groundnut landraces in relation to their environment.
Cornelissen, Rutgerus Leonardus Evert Jan
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On seed physiology, biomechanics and plant phenology in Eragrostis tef
, 2011 • Key words: Teff (Eragrostis tef (Zuccagni) Trotter), germination, temperature, model, leaf appearance, phyllochron, development rate, lodging, biomechanics, safety factor, flowering, heading, day length, photoperiod. • Background Teff (Eragrostis tef
van Delden, S.H., Delden, S.H., van
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Ciência Rural, 2004 Response functions used in crop simulation models are usually different for different physiological processes and cultivars, resulting in many unknown coefficients in the response functions. This is the case of African violet (Saintpaulia ionantha Wendl.)
Streck Nereu Augusto
doaj
Study on Image Inspection of Ornamental Leaf Appearance
, 2014 本研究的目的為研發葉材外形品質的影像檢測方法，檢測葉材的邊緣瑕疵與葉內蟲咬孔洞，檢測對象包含黃椰子葉、山蘇葉與電信蘭葉。由於此三種葉材外形特殊，呈現連續的內凹和外凸曲綫，欲以一般的外形檢測方法檢測其邊緣瑕疵有其困難度，本研究參考並修改火鶴花的外形檢測方法，使之適用於本研究上。 在邊緣檢測部份，先沿著葉緣輪廓計算以取得凹凸變化的關鍵點，再利用葉緣瑕疵處，凹凸特徵在小範圍內反複出現的特性，將之與葉材自然外形的凹凸變化作區分，即可檢測出葉緣瑕疵。 孔洞檢測方面，電信蘭葉本身具有自然孔洞 ...
林政宏, Lin, Cheng-Hung
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, 2018 The rate of leaf appearance is related to early vigor, crop duration, and its environment. This experiment aimed to measure the variability of the leaf appearance rate and its response to two watering systems within the rice indica race. The GRISP Global
Jiang, Y. +5 more
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