نتایج جستجو برای: crop growth rate (cgr)

تعداد نتایج: 1740724  

2012
M. M. A. Mondal A. B. Puteh M. A. Malek M. R. Ismail M. Y. Rafii M. A. Latif

Growth parameters such as leaf area (LA), total dry mass (TDM) production, crop growth rate (CGR), relative growth rate (RGR), and net assimilation rate (NAR) were compared in six varieties of mungbean under subtropical condition (24°8' N 90°0' E) to identify limiting growth characters for the efficient application of physiology breeding for higher yields. Results revealed that a relatively sma...

2015
Hélène Tribouillois Florian Fort Pablo Cruz Raphaël Charles Olivier Flores Eric Garnier Eric Justes

Cover crops can produce ecosystem services during the fallow period, as reducing nitrate leaching and producing green manure. Crop growth rate (CGR) and crop nitrogen acquisition rate (CNR) can be used as two indicators of the ability of cover crops to produce these services in agrosystems. We used leaf functional traits to characterise the growth strategies of 36 cover crops as an approach to ...

Journal: :تولیدات گیاهی 0
مجید آقاعلیخانی دانشیار گروه زراعت، دانشگاه تربیت مدرس تهران مرضیه صفری دانش آموخته کارشناسی ارشد گروه زراعت، دانشگاه تربیت مدرس تهران

given the important role of crop growth indices for explanation of cultivars yield differences in diverse environmental and agronomical circumstances, this experiment was conducted at research field of tarbiat modares university during 2007 growing season. experimental treatments were arranged in split-plot layout based on randomized complete blocks with four replications. in this research, sow...

2012

In a field experiment, growth parameters of soybean cultivars in different weeding regimes was investigated. The trial was split plot in a randomized complete block design. The four cultivars and two lines of soybean (Glycine max L.) including: Sahar, Hill, Sari, Telar, 032 and 033 in main plot and weeding regime consist of no weeding (control), one weeding (35 days after planting) and two weed...

Journal: :journal of agricultural science and technology 2013
jr. amanullah b. a. stewart

shoot:root ratio, dry matter partitioning, growth analysis, and water use efficiency of oat (avena sativa l., cv. walker) was investigated under excessive nitrogen (n) as 200 mg n kg-1 (n1p0), excessive phosphorus as 200 mg p kg-1 (n0p1), and combined 100 mg n+100 mg p kg-1 (n2p2), and the control (n0p0) as check in a pot experiment at dryland agriculture institute, west texas a and m universit...

Journal: :Agronomy Journal 2023

Cultivar variation in seed characteristics can affect seedling vigor, and nitrogen (N) availability influences early-season growth some instances. However, interactions between cultivar N application rate for have received limited attention. Thus, the objectives of this research were to quantify effects cultivar, N-application rate, their interaction on growth, predict vigor from plant morpholo...

2008
ZAMIN SHAHEED SIDDIQUI

The present study was carried out in a field located at Department of Botany, University of Karachi where soil was treated with various concentrations of pesticides before sowing. Combined effects of pesticides on soybean growth and nutritive composition of seeds were observed. Pesticide treated soil had significant effects on leaf growth components such as leaf area ratio, leaf area index, spe...

Journal: :بوم شناسی کشاورزی 0
راحله احمدزاده قویدل قربانعلی اسدی محمد تقی ناصری پور یزدی رضا قربانی سرور خرم دل

introduction legumes after cereals are the second source of human food and in iran they are the second most important food after the wheat. legumes protein is four times as much as that of grains and 10 to 20 times as much as that of glandular plants. in addition, beans are planted in iran in a wide area and knowing optimal farming factors can be an important step in increasing them. one of the...

Growth indices are useful for interpreting plant reaction to environmental factor. Using Growing Degree Days (GDD) for estimating the phonological growth stages is more valid instead of calendar time. In order to study effect of salinity on growth analysis in three different plantago species, a greenhouse experiment was conducted in Vali-e-Asr University of Rafsanjan in 2009. The study was carr...

2013
J. K. Datta M. S. Sikdar A. Banerjee

Field experiment was carried out with five selected mustard cultivars during November 2007 to February 2008 under old alluvial soil in the Crop Research and seed Multiplication Farm of Burdwan University, Burdwan, West Bengal, India in randomized block design replicated thrice. Various growth parameters viz., length of shoot and root, number of primary branches per plant, length of siliquae, di...

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