نتایج جستجو برای: irrigation disruption at vegetative growth stage

تعداد نتایج: 4541257  

Journal: :علوم گیاهان زراعی ایران 0
محفوظی محفوظی

to investigate the effect of supplemental irrigation and nitrogen fertilizer on kernel weight, test weight and wheat grain yield under dryland conditions, a two-year field experiment was conducted in the research farm of college of agriculture, shiraz university during 2004-2005. five irrigation regime including dryland conditions, irrigation at stem elongation, booting, flowering and grain fil...

2018
Mitra Rahmati José M. Mirás-Avalos Pierre Valsesia Françoise Lescourret Michel Génard Gholam H. Davarynejad Mohammad Bannayan Majid Azizi Gilles Vercambre

Climate change projections predict warmer and drier conditions. In general, moderate to severe water stress reduce plant vegetative growth and leaf photosynthesis. However, vegetative and reproductive growths show different sensitivities to water deficit. In fruit trees, water restrictions may have serious implications not only on tree growth and yield, but also on fruit quality, which might be...

2013
Nanthanit Pholphana Nuchanart Rangkadilok Jittra Saehun Supachai Ritruechai Jutamaad Satayavivad

UNLABELLED BACKGROUND The therapeutic activities of Andrographis paniculata are attributed to four major active diterpenoids: andrographolide (AP1), 14-deoxy-11,12-didehydroandrographolide (AP3), neoandrographolide (AP4), and 14-deoxyandrographolide (AP6). This study aims to quantify the four active diterpenoids in various plant organs of A. paniculata at different growth stages in greenhous...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Chuan-Yu Hsu Joshua P Adams Hyejin Kim Kyoungok No Caiping Ma Steven H Strauss Jenny Drnevich Lindsay Vandervelde Jeffrey D Ellis Brandon M Rice Norman Wickett Lee E Gunter Gerald A Tuskan Amy M Brunner Grier P Page Abdelali Barakat John E Carlson Claude W DePamphilis Dawn S Luthe Cetin Yuceer

Annual plants grow vegetatively at early developmental stages and then transition to the reproductive stage, followed by senescence in the same year. In contrast, after successive years of vegetative growth at early ages, woody perennial shoot meristems begin repeated transitions between vegetative and reproductive growth at sexual maturity. However, it is unknown how these repeated transitions...

In order to investigate the effect of zeolite on growth indices, yield and grain yield components and protein of lentil in dryland and supplementary irrigation conditions, a field study was conducted in Shahrekord University, Shahrekord, Iran. The experiment was performed as a split plot in a randomized complete block design with three replications. The main factor included three levels of irri...

2016
O K Koech R N Kinuthia G N Karuku S M Mureithi R Wanjogu

BACKGROUND Production of range grasses under irrigation has been widely adopted in the arid environments of Kenya as a strategy for seasonal forage supply gap. However, their productivity has only been done under conventional methods without an evaluation of their performance at varied soil moisture conditions. This information is needed for making sustainable management of irrigation water and...

2017
He Song Yibo Li Li Zhou Zhenzhu Xu Guangsheng Zhou

10 Effects of crop growth and physiological activity to drought and irrigation regimes 11 have been extensively studied; however, the responses of plant growth, morphological 12 and photosynthetic behaviors to drought episodes and thereafter rewatering receive a 13 less attention. This field experiment was carried out directly in situ at an agricultural 14 ecosystem research station during 2015...

Journal: :Drones 2022

Climatic variability and extreme weather events impact agricultural production, especially in sub-Saharan smallholder cropping systems, which are commonly rainfed. Hence, the development of early warning systems regarding moisture availability can facilitate planning, mitigate losses optimise yields through augmentation. Precision practices, facilitated by unmanned aerial vehicles (UAVs) with v...

2006
TALITA M. ALEXANDRE LUIS F.A. ALVES SÉRGIO B. ALVES

This study was carried out to evaluate the influence of temperature and poultry litter on germination vegetative growth virulence and conidial production of Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) isolates on larvae and adults of the lesser mealworm (Alphitobius diaperinus) (Panzer). The vegetative growth and conidial production were evaluated on culture media. Vi...

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