نتایج جستجو برای: shoot root ratio

تعداد نتایج: 644549  

سرخی لله لو, فرشاد, جوانشیر, عزیز , دباغ محمدی نسب, عادل ,

A pot experiment was designed to investigate the effects of full, above and below ground interactions of wheat with wild oat on leaf characteristics and root to shoot ratio. This experiment was conducted as a factorial based on randomized complete design with four replications. The treatments included four interference levels (above ground, below ground, above and below ground and check wheat a...

سرهنگ‌زاده, المیرا, نجفی, نصرت اله,

Salinity and waterlogging are two important abiotic stresses to plants growth and yield in the world. These two stresses can occur simultaneously and have additive effects on plants, including corn, growth. In a greenhouse experiment, the effects of NaCl salinity and waterlogging and their interactive effect on the growth characteristics of forage corn (Zea mays cv. single cross 704) were studi...

Journal: :علوم باغبانی ایران 0
حسین محمدی دانشجوی سابق کارشناسی ارشدپردیس کشاورزی ومنابع طبیعی دانشگاه تهران لیلا تبریزی استادیار پردیس کشاورزی ومنابع طبیعی دانشگاه تهران رضا صالحی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the effect of different ratio of vermicompost (0, 10, 20, 30, 40 & 50 %) in two type of substrate (coco peat and coco peat-perlite (50:50 v:v)) on growth characteristics of gooseberry (physalis peruviana l.) seedling was investigated in research greenhouse of university of tehran, in 2013. a factorial experiment based on completely randomized design with four replications was carried out. crite...

ژورنال: علوم آب و خاک 2008
سرخی لله لو, فرشاد, جوانشیر, عزیز , دباغ محمدی نسب, عادل ,

A pot experiment was designed to investigate the effects of full, above and below ground interactions of wheat with wild oat on leaf characteristics and root to shoot ratio. This experiment was conducted as a factorial based on randomized complete design with four replications. The treatments included four interference levels (above ground, below ground, above and below ground and check wheat a...

2010
Joyce G. Latimer John Freeborn

Plant growth regulators, especially those applied directly to the root system, are thought to significantly reduce growth of the root systems. Various perennials were treated with uniconazole (Concise, Fine Americas, Inc.) to evaluate effects on plant height as well as shoot and root dry weights. Plant height of Lobelia cardinalis was not affected by a 1 ppm uniconazole liner dip, but shoot dry...

Journal: :Annals of botany 2006
Joaquín Guerrero-Campo Sara Palacio Carmen Pérez-Rontomé Gabriel Montserrat-Martí

BACKGROUND AND AIMS The objective of this study was to test whether the mean values of several root morphological variables were related to the ability to develop root-borne shoots and/or shoot-borne roots in a wide range of vascular plants. METHODS A comparative study was carried out on the 123 most common plant species from eroded lands in north-east Spain. After careful excavations in the ...

2011
Joaquín Guerrero-Campo Sara Palacio Carmen Pérez-Rontomé

● Background and aims. The objective of this study was to test whether the mean values of several root morphological variables were related to the ability to develop root-borne shoots and/or shoot-borne roots in a wide range of vascular plants. ● Methods. A comparative study was carried out on the 123 most common plant species from eroded lands in NE Spain. After careful excavations in the fiel...

ژورنال: علوم آب و خاک 2008
حاج غنی, مهدیه , صفاری , مهری , مقصودی مود, علی اکبر ,

Soil salinity is an increasing environmental stress on crops in most areas of Iran since farmers use underground saline water for irrigation. In order to investigate the effects of salt stress on germination and seedling growth of safflower (Carthamus tinctorius L.), an experiment was conducted at two stages (germination seedling growth), using four levels of NaCl salinity (0, 5, 10, 15 ds/m), ...

حاج غنی, مهدیه , صفاری , مهری , مقصودی مود, علی اکبر ,

Soil salinity is an increasing environmental stress on crops in most areas of Iran since farmers use underground saline water for irrigation. In order to investigate the effects of salt stress on germination and seedling growth of safflower (Carthamus tinctorius L.), an experiment was conducted at two stages (germination seedling growth), using four levels of NaCl salinity (0, 5, 10, 15 ds/m), ...

Journal: :journal of agricultural science and technology 2010
r. mohammadian f. r. khoyi h. rahimian m. moghadam k. ghassemi-golezani

limited water for irrigation and the coincidence of early growth of sugar beet (beta vulgaris l.) with the late growth of winter cereals in the northeast (ne) of iran, force farmers, to allocate their limited irrigation water to the cereal crops and thus their sugar beet crop is subjected to an early water stress. finding cultivars which are able to withstand early water stress without a si...

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