نتایج جستجو برای: eight leaf stage

تعداد نتایج: 603263  

Abdol Amir Rahnama, Abdol Hamid Mohebi Mohammad Khayat,

Oil palm propagation techniques are juvenile pot plants derived from germinated seeds and tissue culture, because it doesn’t produce sucker. In the nursery stage, monitoring the conditions of irrigation and nutrition are important to ensure phenotypic quality. During the nursery stage, optimal fertilization in development of more vigorous and productive plants. This research was carried out to ...

2009
Pradeep Sharma Narayan Rishi

In recent years leaf curl disease of cotton has become a major limiting factor in the production of cotton, which is an important fiber cash crop. In the last two decades or more, leaf curl disease in cotton took on epidemic proportions in Pakistan. In the early 1990’s cotton leaf curl disease (CLCuD) appeared in the bordering parts of India in the states of Rajasthan and Punjab and spread to e...

2013

Evaluation of the effect of ethanolic leaves extract of Maringa oleifera on Haematological and certain Biochemical parameters was studied. The study assessed Total protein, Albumin, Billirubin for biochemical and PCV, Hb and WBC for haematological indices. Twenty five (25) albino rats of wistar strain (100-175g) were used for the studies and were divided into 5 groups of five (5) rats per each....

Journal: :علوم گیاهان زراعی ایران 0
کیوان فتحی امیرخیز دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه شاهد، تهران مجید امینی دهقی دانشیار دانشکده کشاورزی دانشگاه شاهد، تهران سید علی محمد مدرس ثانوی استاد، دانشکده کشاورزی دانشگاه تربیت مدرس، تهران سیاوش حشمتی دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه شاهد، تهران

in order to study the effects of soil and foliar application of fe-eddha on some biochemical and physiological traits in safflower under two irrigation regimes an experiment was conducted in 2008 growing season in research field of faculty of agriculture, shahed university. the experimental design was a split-plot based on randomized complete blocks with four replications. mainplots consisted o...

2010
Hye Ryun Woo Jin Hee Kim Junyoung Kim Jeongsik Kim Ung Lee In-Ja Song Jin-Hong Kim Hyo-Yeon Lee Hong Gil Nam Pyung Ok Lim

Leaf senescence is a developmentally programmed cell death process that constitutes the final step of leaf development and involves the extensive reprogramming of gene expression. Despite the importance of senescence in plants, the underlying regulatory mechanisms are not well understood. This study reports the isolation and functional analysis of RAV1, which encodes a RAV family transcription ...

1998
J. A. Kolmer

Leaf rust (caused by Puccinia recondita f. sp. tritici) is the most widespread and regularly occurring rust on wheat. Genetic resistance is the most economical method of reducing yield losses due to leaf rust. To date, 46 leaf rust resistance genes have been designated and mapped in wheat. Resistance gene expression is dependent on the genetics of host-parasite interaction, temperature conditio...

2014
Maya Bar Naomi Ori

The development of plant leaves follows a common basic program that is flexible and is adjusted according to species, developmental stage and environmental circumstances. Leaves initiate from the flanks of the shoot apical meristem and develop into flat structures of variable sizes and forms. This process is regulated by plant hormones, transcriptional regulators and mechanical properties of th...

Journal: :Tree physiology 2002
John C Volin Eric L Kruger Richard L Lindroth

Relatively little is known about the implications of atmospheric CO2 enrichment for tree responses to biotic disturbances such as folivory. We examined the combined effects of elevated CO2 concentration ([CO2]) and defoliation on growth and physiology of sugar maple (Acer saccharum Marsh.) and trembling aspen (Populus tremuloides Michx.). Seedlings were planted in the ground in eight open-top c...

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