Results 31 to 40 of about 250,341 (305)
Using a chlorophyll meter to estimate tea leaf chlorophyll and nitrogen contents [PDF]
Journal of soil science and plant nutrition, 2012 A chlorophyll meter can conveniently estimate foliar chlorophyll and nitrogen (N) contents in many species. The objective of this study was to evaluate the utility of a chlorophyll meter to inform nitrogen fertilization rates of tea (Camellia sinensis L.) at different places and times.
Liu, Z.A, Yang, J.P, Yang, Z.C
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Evaluation and calibration of noninvasive leaf chlorophyll meters for wheat
Journal of Agrometeorology, 2015 Nondestructive and fast chlorophyll assessment can be made with portable chlorophyll meters. The meters measure the transmittance of red and near infrared radiation through the leaf and estimates the chlorophyll in non-dimensional index values by ...
M. M. LUNAGARIA, H.R. PATEL, VYAS PANDEY
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Assessing spectral similarities between rainfed and irrigated croplands in a humid environment for irrigated land mapping [PDF]
, 2014 Deriving accurate spatial assessments of the distribution of irrigated crops has become more important in recent years for water resource planning, particularly where irrigation water resources are constrained.
Shamal, S. A. M., Weatherhead, E. K.
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Remote sensing of terrestrial chlorophyll content [PDF]
, 2009 Terrestrial chlorophyll content is a key environmental variable that has proved difficult to estimate accurately using remotely sensed data. Some of the pioneering studies in this field were undertaken by Professor Kirill Ya Kondratyev and co-workers in the 1970s and early 1980s.
Dash, Jadunandan +2 more
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PhotosyntheticaHigh temperatures have significant impacts on fruit tree production. Foliar spraying application of promoting agents can be a sustainable approach to managing high-temperature stress in orchards.
I. MIHALJEVIĆ +4 more
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SPAD-502 readings in response to photon fluence in leaves with different chlorophyll content
Revista Ceres, 2010 The chlorophyll meter (SPAD-502) is widely used to estimate chlorophyll content, but non-uniform chloroplast distribution can affect its accuracy. This study aimed to assess the effect of photon fluence (F, irradiance x time of illumination) in leaves ...
Helena Cristina Santos Nascimento +1 more
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Biology, 2022 Photosynthesis is an important factor in determining the yield of rice. In particular, the size and efficiency of the photosynthetic system after the heading has a great impact on the yield. Research related to high-efficiency photosynthesis is essential
Yoon-Hee Jang +3 more
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Relationships between rice agricultural parameter and hyperspectra data
浙江大学学报. 农业与生命科学版, 2002 The paper studied the variation of leaf area index (LAI), leaf chlorophyll content (CHL. C), fresh leaf chlorophyll density (CHL. D) and hyperspectral data in growing period on rice field plots of different nitrogen levels.
WANG Xiu-zheng +4 more
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International Journal of Applied Earth Observations and Geoinformation, 2023 The real-world crowns of broadleaf tree species feature green leaves surrounding branches, resulting in leaf spatial aggregation effect in the crown. However, the impact of such leaf spatial aggregation on chlorophyll content retrieval has not yet been ...
Jinpeng Cheng +9 more
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A novel aspect of essential oils: coating seeds with thyme essential oil induces drought resistance in wheat [PDF]
, 2019 Coating seeds with biostimulants is among the promising approaches in crop production to increase crop tolerance to drought stress. In this study, we evaluated the potential of coating durum wheat seeds of the cultivar ‘Karim’ with thyme essential oil on
Alesami, Noura +9 more
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