نتایج جستجو برای: root available water

تعداد نتایج: 1214422  

Journal: :Plant biology 2013
V Vadez J S Rao P Bhatnagar-Mathur K K Sharma

Water deficit is a major yield-limiting factor for many crops, and improving the root system has been proposed as a promising breeding strategy, although not in groundnut (Arachis hypogaea L.). The present work was carried out mainly to assess how root traits are influenced under water stress in groundnut, whether transgenics can alter root traits, and whether putative changes lead to water ext...

2005
MARY ANNE SWORD

Comparison of the root system growth and water transport of southern pine species after planting in different root-zone environments is needed to guide decisions regarding when, and what species to plant. Evaluation of how seed source affects root system responses to soil conditions will allow seed sources to be matched to planting conditions. The root growth and hydraulic conductivity of three...

2012

Each plant production system must foster the availability of oxygen to the plant roots. This includes every plant production system, ranging from the garden or agricultural field outside to the commercial and hobby hydroponics system in the greenhouse. In successful production systems, this happens. It may be due to a favorable air/water relationship in the media or a media component. It may be...

Journal: :American journal of botany 2003
J G Dubrovsky L F Gómez-Lomelí

Determinate root growth is an important adaptation feature for seedling establishment in some Cactaceae. We show that seedlings of Pachycereus pringlei have primary roots with a stable determinate developmental program. How water stress affects determinate root growth and lateral root development has not been studied. Here we address this question. Root growth was analyzed in plants growing in ...

2005
A. J. Guswa

Transpiration in water-limited ecosystems is controlled by the availability of soil moisture. Rain events in these natural environments may only partially wet the root zone, leading to a heterogeneous distribution of available water. This spatial variability coupled with the non-linearity of the function relating local uptake to local saturation produces a non-unique relationship when these qua...

2018
Daoqian Chen Shiwen Wang Lina Yin Xiping Deng

In plants, water deficiency can result from a deficit of water from the soil, an obstacle to the uptake of water or the excess water loss; in these cases, the similar consequence is the limitation of plant growth and crop yield. Silicon (Si) has been widely reported to alleviate the plant water status and water balance under variant stress conditions in both monocot and dicot plants, especially...

2013
Guneet Mander Gurinder Pal Singh

Moisture is an important consideration in many aspects ranging from irrigation, soil chemistry, golf course, corrosion and erosion, road conditions, weather predictions, livestock feed moisture levels, water seepage etc. Vegetation and crops always depend more on the moisture available at the root level than on precipitation occurrence. In this paper, design of an instrument is discussed which ...

2017

High yielding crop production technologies became available for farmers in irrigated favorable agricultural ecosystems from 1960’s known as Green Revolution, while 77% of world arable land (~1,086Mha in 2014, FAOSTAT) is estimated without irrigation and prone to water shortage or drought (a disaster from a shortage of rainfall and available water on agriculture and other human lives). Greater d...

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