Results 31 to 40 of about 365,168 (303)

Progress and bottlenecks in the early domestication of the perennial oilseed Silphium integrifolium, a sunflower substitute [PDF]

, 2018
Silflower (Silphium integrifolium Michx.) is in the early stages of domestication as a perennial version of oilseed sunflower, its close relative. Grain crops with deep perennial root systems will provide farmers with new alternatives for managing soil ...
Crews, Timothy E., González Paleo, Luciana, Peterson, Kelsey, Ravetta, Damián Andrés, Turner, Kathryn, Van Tassel, David, Vilela, Alejandra Elena   +6 more
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Studies on the Varietal Difference of Harvest Index in Rice. Relationship between harvest index and dry matter production.

Japanese Journal of Crop Science, 2000
Varietal differences harvest index (HI) and yield (Y) were examined using 60 Japanese varieties (J group) and 20 high-yielding varieties bred in Asian countries (H group). HI varied from 36.8% to 53.4%. Mean values of HI were 43.5% in the J group and 48.8% in the H group. Y ranged form 22.6g/plant to 40.0g/plant.
Jing CUI, Akihito KUSUTANI, Masanori TOYOTA, Koh-ichiro ASANUMA   +3 more
openaire   +2 more sources

ENTRIES PERFORMANCE OF BREAD WHEAT AND ESTIMATION OF PHENOTYPIC AND GENETIC VARIANCES AND GENEIC CORRELATION [PDF]

Mesopotamia Journal of Agriculture, 2007
Twenty bread wheat of ICARDA in addition to the local variety, Abou-Garib 3 were evaluated in Nienvah governorate, Iraq for two locations, , Al-Rashidia and Rabeeha,15 and 120 km from Mosul center .
Ahmed A. Ahmed
doaj   +1 more source

Persistence Index for Harvested Populations

Mathematical Biosciences
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jerzy A. Filar, Matthew H. Holden, Manuela Mendiolar, Sabrina H. Streipert   +3 more
openaire   +1 more source

Developing an Uncrewed Aerial Vehicle (UAV)-Based Prediction Model for the Rice Harvest Index Using Machine Learning

Agriculture
(1) Background: The harvest index is important for measuring the correlation between grain yield and aboveground biomass. However, the harvest index can only be measured after a mature harvest.
Zhaoyang Pan, Zhanhua Lu, Liting Zhang, Wei Liu, Xiaofei Wang, Shiguang Wang, Hao Chen, Haoxiang Wu, Weicheng Xu, Youqiang Fu, Xiuying He   +10 more
doaj   +1 more source

Assessing the Harvest Maturity of Brazilian Mangoes [PDF]

, 2010
No clear criterion exists to determine the optimum time to harvest mango. Some empirical relations are used to assess maturity, such as shoulder development.
Eccher Zerbini, P.C., Filgueiras, H., Pereira, T., Rizzolo, A., Spinelli, L., Tijskens, L.M.M., Torricelli, A., Vanoli, M.   +7 more
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How Planting Density Affects Number and Yield of Potato Minitubers in a Commercial Glasshouse Production System [PDF]

, 2009
Commercial potato minituber production systems aim at high tuber numbers per plant. This study investigated by which mechanisms planting density (25.0, 62.5 and 145.8 plants/m2) of in vitro derived plantlets affected minituber yield and minituber number ...
Lommen, W.J.M., Veeken, A.J.H., van der
core   +2 more sources

Improving pear (Pyrus spp.) harvest maturity assessment: Integration of color composite indicators and sophisticated multivariate analysis techniques

Journal of Agriculture and Food Research
Predicting the appropriate maturity index for pear fruit at the time of harvest is crucial for preventing post-harvest losses and preserving fruit quality.
Zeinab Shafaei-Cherush, Kazem Arzani, Nima Ahmadi, Ali Mokhtassi-Bidgoli, Mahdi Ayyari, Hamid Abdollahi   +5 more
doaj   +1 more source

Responses of grain yield, biomass and harvest index and their rates of genetic progress to nitrogen availability in ten winter wheat varieties. [PDF]

, 2006
peer-reviewedIncreased yields in winter wheat cultivars have been found to be largely attributable to improved partitioning of biomass to the grain, i.e., higher harvest index.
White, E.M., Wilson, F.E.A.
core  

Sugar maple (Acer saccharum March.) growth is influenced by close conspecifics and skid trait proximity following selection harvest [PDF]

, 2009
In this study, we quantified the effects of local neighbourhood competition, light availability, and proximity to skid trails on the growth of sugar maple (Acer saccharum Marsh.) trees following selection harvest.
Astrup, Beaudet, Burnham, Busing, Bédard, Canham, Canham, Canham, Canham, Christian Messier, Coates, Coates, Daniels, Daniels, Duchesne, Dwyer, Forget, Fortin, Gartner, Germain, Godman, Grigal, Grissino-Mayer, Grushecky, Hartmann, Hartmann, Hegyi, Helms, Heninger, Henrik Hartmann, Holmes, Jones, Kenefic, Kienholz, Kiernan, Komatsu, Leak, LeBlanc, Lefrançois, Lorimer, MacFarlane, Mailly, Marc J. Mazerolle, Marilou Beaudet, McClaran, Moore, Murphy, Nadezhdina, Nyland, Nyland, Pacala, Pacala, Peng, Peterson, Pinheiro, Pretzsch, Puettmann, Puettmann, R Development Core Team, Roberts, Robitaille, Schwinning, Smith, St.Clair, Stadt, Stadt, Startsev, Tardif, Thorpe, Wang, Wimberly, Zhao   +71 more
core   +1 more source