نتایج جستجو برای: longer grain filling period

تعداد نتایج: 726081  

2016
Fu-Yuan Zhu Mo-Xian Chen Yu-Wen Su Xuezhong Xu Neng-Hui Ye Yun-Ying Cao Sheng Lin Tie-Yuan Liu Hao-Xuan Li Guan-Qun Wang Yu Jin Yong-Hai Gu Wai-Lung Chan Clive Lo Xinxiang Peng Guohui Zhu Jianhua Zhang

Modern rice cultivars have large panicle but their yield potential is often not fully achieved due to poor grain-filling of late-flowering inferior spikelets (IS). Our earlier work suggested a broad transcriptional reprogramming during grain filling and showed a difference in gene expression between IS and earlier-flowering superior spikelets (SS). However, the links between the abundances of t...

Water deficient stress is one of the major limiting factors of wheat production in arid and semiarid areas of the world such as Iran. Under water deficient stress photosynthesis is limited and remobilization of assimilates stored in stems is more important to grain filling. In order to molecular analysis of fructan remobilization in wheat stem (penultimate) under terminal water deficit stress, ...

2014
Xiao Wang Marija Vignjevic Dong Jiang Susanne Jacobsen Bernd Wollenweber

Drought stress occurring during the reproductive growth stage leads to considerable reductions in crop production and has become an important limiting factor for food security globally. In order to explore the possible role of drought priming (pre-exposure of the plants to mild drought stress) on the alleviation of a severe drought stress event later in development, wheat plants were subjected ...

1999
A. Morales E. Sánchez de Jiménez

Rogers et al., 1996; Fischer et al., 1997). In these plants, enzymes responsible for sucrose uptake and assimilation The original maize (Zea mays L.) var. Zacatecas 58 (Z 0 ) on one side, and photosynthetic rates, sucrose synthesis and five composites of cycles 5, 10, 15, 20, and 23 of and transport on the other, have been described as stratified mass selection (Z 5 , Z 10 , Z 15 , Z 20 , and Z...

Journal: :Comptes rendus biologies 2009
Chang-Xing Zhao Ming-Rong He Zhen-Lin Wang Yue-Fu Wang Qi Lin

Wheat (Triticum aestivum L.) is one of the most important agricultural crops worldwide. However, water is the most important limiting factor for wheat production. This study was initiated to test water stress environmental effects on grain quality and nutritional value of wheat by using single different water conditions at post-anthesis stage. Further analyses were conducted to examine variatio...

Journal: :Plant biotechnology journal 2003
Tong Zhu Paul Budworth Wenqiong Chen Nicholas Provart Hur-Song Chang Sonia Guimil Wenpei Su Bram Estes Guangzhou Zou Xun Wang

Cereal grains accumulate carbohydrates, storage proteins and fatty acids via different pathways during their development. Many genes that participate in nutrient partitioning during grain filling and that affect starch quality have been identified. To understand how the expression of these genes is coordinated during grain development, a genomic approach to surveying the participation and inter...

Journal: :حفاظت گیاهان 0
المیرا محمدوند علیرضا کوچکی مهدی نصیری محلاتی عباس شهدی کومله

the experiment was performed to evaluate the morphological, phenological and yield aspects of two different echinochloa species, including barnyardgrass (e. crus-galli) and watergrass (e. orizoides) as a new-introduced weed species. the study was conducted as a 2-years pot-experiment under outdoor condition at rice research institute of iran (rrii) in rasht. the results demonstrated that; time ...

Journal: :crop breeding journal 0
m. esmaeilzadeh moghaddam seed and plant improvement institute, agricultural research, education and extension organization (areeo), karaj, iran. m. r. jalal kamali internatioanl maize and wheat improvement cenetr (cimmyt), karaj, iran. n. soda islamic azad university, karaj, iran. s. sadre jahani4 agriculture faculty of varamin, islamic azad university, varamin, iran. m. ghodsi khorasan-e-razavi agriculture and natural research center, agricultural research, education and extension organization (areeo), mashhad, iran.

a field experiment was conducted at the seed and plant improvement institute research field station in karaj, iran, during the 2009-10 and 2010-11 growing seasons to estimate genetic progress and the variation in penological and agronomic characteristics in 13 irrigated facultative/winter bread wheat (triticum aestivum l.) cultivars released in iran between 1943 and 2011. trends of temporal var...

Journal: :تولید گیاهان زراعی 0

in order to determine the best index for evaluating maize genotypes, 15 maize inbred lines were evaluated in two planting dates, 6 july to coincide heat stress with pollination time and 27 july as normal planting to avoid high temperature during pollination and grain filling period, using a randomized complete block design with three replications, in shushtar city, in 2007. result showed that i...

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