Results 31 to 40 of about 209,563 (307)

Leaf area index of potato crop under three nitrogen fertilization treatments

open access: yesAgronomía Colombiana, 2017
Nitrogen fertilization has considerable effects on growth and yield of the potato crop. Additionally, leaf expansion is one of the most important growth parameters that can be used to optimize the management of agroecological resources.
Pedro Manuel Villa
doaj   +1 more source

Estimation of leaf area with an integrating sphere [PDF]

open access: yesTree Physiology, 1997
Relative absorptance of intact branches measured with an integrating sphere was compared to leaf area estimated by conventional methods (volume displacement and scanning area meter) for three conifer species: Picea mariana (Mill.) BSP, Pinus banksiana (Lamb.) and Pseudotsuga menziesii (Mirb.) Franco.
Lydia, Serrano, J. A., Gamon, J., Berry
openaire   +2 more sources

The Effects of Water Stress on Cotton Leaf Area and Leaf Morphology

open access: yesKahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi, 2023
The most important effect of water stress on plants is that it reduces leaf area and leads to changes in leaf morphology. Decreased leaf area results in reduces crop yield through the reduction in photosynthesis. This study investigates the effects of the decrease in leaf area on seed cotton yield, evapotranspiration (ET), water use efficiency (WUE ...
Berkant ÖDEMİŞ   +1 more
openaire   +4 more sources

Joint Estimation of Leaf Area Density and Leaf Angle Distribution Using TLS Point Cloud for Forest Stands

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The foliage density $(u_l)$ and the leaf angle distribution (LAD) are important properties that impact radiation transmission, interception, absorption and, therefore, photosynthesis.
Ameni Mkaouar   +3 more
doaj   +1 more source

تأثیر سطوح شوری آب آبیاری با NaCl بر فیلوکرون و سرعت ظهور برگ ارقام جو [PDF]

open access: yesتنش های محیطی در علوم زراعی, 2016
شوری منابع آب‌وخاک از مهم‌ترین مشکلات کشاورزی در مناطق خشک و نیمه‌خشک ایران است. برای بررسی تأثیر شوری آب آبیاری بر فیلوکرون و سرعت ظهور برگ ارقام جو، آزمایشی به‌صورت فاکتوریل در قالب طرح پایه بلوک‌های کامل تصادفی با سه تکرار در گلخانه دانشکده کشاورزی ...
رئوف سیدشریفی   +1 more
doaj   +1 more source

Assessment of morphological attributes of Guava tree for design of a novel tunnel spraying system

open access: yesEnvironment Conservation Journal
The morphological attributes play a significant role in determining the level of applied insecticide by the existing spraying system. Therefore, this attempt was made to assess the various morphological attributes of guava tree such as leaf size, leaf ...
Jagjeet Singh   +5 more
doaj   +1 more source

Conversion of total leaf area to projected leaf area in lodgepole pine and Douglas-fir [PDF]

open access: yesTree Physiology, 1998
Three definitions of leaf area index (LAI) in the literature have no predictable relationship with each other. Factors were derived for converting total LAI to projected LAI of horizontal leaves and to projected LAI for inclined leaves of lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.) and coastal Douglas-fir (Pseudotsuga menziesii (Mirb.)
openaire   +2 more sources

A Rapid Method of Leaf Area Determination [PDF]

open access: yesNature, 1951
RECENT physiological studies on nutrition and growth have shown that leaf area is a reliable index of growth factors determining dry matter accumulation, carbohydrate metabolism, yield and quality of crops1–9,12. Various methods have therefore been devised for measuring the total leaf surface on a growing plant.
K N, LAL, M S, SUBBA RAO
openaire   +2 more sources

Canopy Architecture and Sun Exposure Influence Berry Cluster–Water Relations in the Grapevine Variety Muscat of Alexandria

open access: yesPlants
Climate-change-related increases in the frequency and intensity of heatwaves affect viticulture, leading to losses in yield and grape quality. We assessed whether canopy-architecture manipulation mitigates the effects of summer stress in a Mediterranean ...
Olfa Zarrouk   +8 more
doaj   +1 more source

Allometric models for estimating the leaf area of lisianthus (Eustoma grandiflorum) using a non-destructive method

open access: yesRevista Ceres, 2022
Lisianthus (Eustoma grandiflorum) is a cut flower grown due to the wide diversity of colors and longevity in the post-harvest. The leaf area measurement is fundamental in plants because the leaves are directly related to several processes such as ...
Marlon Gomes Dias   +4 more
doaj   +1 more source

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