Results 121 to 130 of about 52,478 (276)

Genomic loci associated with leaf abscission contribute to machine picking and environmental adaptability in upland cotton (Gossypium hirsutum L.)

open access: yesJournal of Advanced Research
Introduction: Defoliation by applying defoliants before machine picking is an important agricultural practice that enhances harvesting efficiency and leads to increased raw cotton purity.
Hongge Li   +20 more
doaj   +1 more source

Ectopic Expression of ScALDH21 From a Desert Moss Enhances Cotton Resistance to Verticillium Wilt via the Modulation of Jasmonates and Phenylpropanoid Pathways

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Biotic stresses, particularly Verticillium wilt (VW), lead to a global decline in cotton yields. Here, we demonstrate that ectopic expression of ScALDH21, a gene from the desiccation‐tolerant moss Syntrichia caninervis Mitt. and absent in angiosperms, enhances cotton's resistance to VW.
Honglan Yang   +13 more
wiley   +1 more source

Interpretation and mapping of gypsy moth defoilation from ERTS (LANDSAT)-1 temporal composites [PDF]

open access: yes
The author has identified the following significant results. Photointerpretation of temporally composited color Diazo transparencies of ERTS(LANDSAT) images is a practical method for detecting and locating levels of widespread defoliation.
Kowalik, W. S.   +2 more
core   +1 more source

Screening for Fall Armyworm (Spodoptera frugiperda J. E. Smith) Resistance in Early‐Maturing Tropical Maize Adapted to Sub‐Saharan Africa

open access: yesPlant Breeding, EarlyView.
ABSTRACT Fall armyworm (FAW) (Spodoptera frugiperda J. E. Smith) has emerged as a serious pest since 2016 in Africa, affecting the food security and livelihoods of millions of smallholder farmers, especially those growing maize. Native genetic resistance to FAW is essential for reducing yield loss.
Adamu Masari Abubakar   +6 more
wiley   +1 more source

Computer analysis and mapping of gypsy moth levels in Pennsylvania using LANDSAT-1 digital data [PDF]

open access: yes
The effectiveness of using LANDSAT-1 multispectral digital data and imagery, supplemented by ground truth and aerial photography, was investigated as a new method of surveying gypsy moth (Porthetria dispar (L.)) (Lepidoptera; Lymantriidae) defoliation ...
Williams, D. L.
core   +1 more source

Potato late blight - fatal threat in organic potato production [PDF]

open access: yes, 2005
Improved potato late blight management is crucial for the continuity of organic potato production. Two major changes in cultural practises are necessary: more diverse crop rotation with at least 4 years between consecutive potato crops and optimising ...
Hannukkala, Asko, Lehtinen, Ari
core  

Drought and Herbivory Drive Physiological and Phytohormonal Changes in Soybean (Glycine max Merril): Insights From a Meta‐Analysis

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT With climate change, abiotic and biotic stresses such as drought and herbivory are predicted to further diminish agricultural productivity. Soybean (Glycine max [L.] Merrill), a crop of global economic importance, is vulnerable to both. However, the interactive effects of drought and herbivory on soybeans haven't been explored, especially ...
Manish Gautam, Rupesh Kariyat
wiley   +1 more source

Drought‐Induced Abscisic Acid Accumulation in Soybean Roots Depends on NCED Gene Expression More Than Shoot‐to‐Root ABA Transport

open access: yesPlant, Cell &Environment, EarlyView.
Abstract Abscisic acid (ABA) is a key phytohormone in plant responses to water deficit. Although there is extensive evidence that roots can synthesise ABA, recent findings suggest that local synthesis in response to dehydration contributes little to the root ABA pool compared to shoot‐sourced ABA.
Jaime Puértolas   +4 more
wiley   +1 more source

Defoliation reconsidered?

open access: yes, 2015
Since the 1980s defoliation (often assessed by means of crown transparency) is the most used indicator of tree condition adopted in Europe. It has been criticized for its subjectivity and scarce relation with meaningful endpoints. Here we collated the results of three different studies carried out in France and Italy to investigate the relationship ...
Ferretti, M.   +3 more
openaire   +1 more source

Effects of Defoliation at Different Fertility Stages on Material Accumulation, Physiological Indices and Yield of Cotton

open access: yesAgriculture
In recent years, severe hailstorms have caused damage to cotton leaves and stalks. In order to identify the effects of cotton leaf damage on its dry matter accumulation, protective enzyme activity and yield in different periods, in this experiment ...
Wenjun Li   +5 more
doaj   +1 more source

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