Results 31 to 40 of about 311,405 (246)

Heat unit requirement and performances of litchi under Sub-Himalayan terai region of West Bengal

open access: yesJournal of Horticultural Sciences, 2022
To determine the heat unit requirement and assess its subsequent effects on flowering and fruiting characteristics, a field experiment was conducted during 2018-19 with seven cultivars of litchi viz., Calcuttia, Elaichi, Bedana, Bombai, China, Shahi and
NILESH BHOWMICK, Saidiksha Subba
doaj   +1 more source

Thermal Time as a Parameter to Determine Optimal Defoliation Frequency of Perennial Ryegrass (Lolium perenne L.) and Pasture Brome (Bromus valdivianus Phil.)

open access: yesAgronomy, 2020
The herbage mass and nutritional value of harvested forage are fundamental determinants of the production potential of pastoral systems. The objective of this study was to evaluate the growth dynamics and accumulated herbage mass expressed in dry matter (
Iván Calvache   +4 more
doaj   +1 more source

High resistance to climatic variability in a dominant tundra shrub species [PDF]

open access: yesPeerJ, 2019
Climate change is modifying temperature and precipitation regimes across all seasons in northern ecosystems. Summer temperatures are higher, growing seasons extend into spring and fall and snow cover conditions are more variable during winter.
Victoria T. González   +5 more
doaj   +2 more sources

Initial growth and development of southern sandbur based on thermal units [PDF]

open access: yesPlanta Daninha, 2014
Availability of basic information on weed biology is an essential tool for designing integrated management programs for agricultural systems. Thus, this study was carried out in order to calculate the base temperature (Tb) of southern sandbur (Cenchrus ...
E.C.R. Machado   +5 more
doaj   +1 more source

Impact of Sowing Date Induced Temperature and Management Practices on Development Events and Yield of Mustard

open access: yesBangladesh Agronomy Journal, 2015
The experiment was conducted at the research field of the Agronomy Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, during rabi season of 2014-2015 to find out the relationship between different development events of ...
MSA Khan, MA Aziz
doaj   +1 more source

EFFECT OF HEAT STRESS ON SOME AGRONOMIC TRAITS OF BREAD WHEAT (TRITICUM AESTIVUM, L) GENOTYPES UNDER UPPER EGYPT CONDITIONS [PDF]

open access: yesFayoum Journal of Agricultural Research and Development, 2005
Combined analysis of variance for all studied traits in twelve breadwheat genotypes showed highly significant differences among lines andsowing dates, as well as, the lines x sowing date interaction whichshowed significant and highly significant for all ...
Abd El-Kareem A. Abd El-Kareem   +2 more
doaj   +1 more source

Study of Comparative Phenology and the Effect of Emergence Date and Scarification on the Growth and Performance of Caspian Vetch (Vicia hyrcanica) and Narbon Vetch (Vicia narbonensis) in Wheat (Triticum aestivum) Fields [PDF]

open access: yesپژوهش‌های حفاظت گیاهان ایران
IntroductionWheat (Triticum aestivum L.) is one of the most important cereal crops in the world as a source of carbohydrates, protein, and minerals (Esposito et al., 2023). Its yield and planted area account for about one-third of food production.
Vahid Kamari Direh   +3 more
doaj   +1 more source

Growth model of the pineapple guava fruit as a function of thermal time and altitude

open access: yesIngeniería e Investigación, 2016
The growth of the pineapple guava fruit is primarily stimulated by temperature but is also influenced by other climactic factors, such as altitude.
Alfonso Parra-Coronado   +2 more
doaj   +1 more source

Agrometeorological Conditions and Agroclimatic Trends for the Maize and Wheat Crops in the Balkan Region

open access: yesAtmosphere, 2021
The Balkan peninsula is a transitional zone, in terms of bioclimatic conditions, with an extended and dynamic agricultural sector. Its potential is in peril due to climate change and socioeconomic factors.
Ioannis Charalampopoulos
doaj   +1 more source

Phenological variations of avocado cv. Hass and their relationship with thermal time under tropical conditions

open access: yesHeliyon, 2023
In recent years, the avocado has been one of the most dynamic fruits in the world market. In particular, cv. Hass stands out due to its productivity, nutritional quality, and acceptance.
Joaquín Guillermo Ramírez-Gil   +6 more
doaj   +1 more source

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