Controlled pollination
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Honey bee colonies managed for agricultural pollination are highly dependent on human inputs, especially for disease control and supplemental nutrition. Hives are routinely fed artificial “pollen substitute” diets to compensate for insufficient nutritional forage in the environment.
14p vidarwin 22-02-2022 14 1 Download
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Cytoplasmic male sterility (CMS) is a natural phenomenon of pollen abortion caused by the interaction between cytoplasmic genes and nuclear genes. CMS is a simple and effective pollination control system, and plays an important role in crop heterosis utilization.
14p vitzuyu2711 29-09-2021 16 1 Download
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Genomic selection (GS) can increase genetic gain by reducing the length of breeding cycle in forest trees. Here we genotyped 1370 control-pollinated progeny trees from 128 full-sib families in Norway spruce (Picea abies (L.) Karst.), using exome capture as genotyping platform.
16p viseulgi2711 31-08-2021 13 1 Download
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The recent release of the reference genome sequence assembly of flax, a self-pollinated crop with 15 chromosome pairs, into chromosome-scale pseudomolecules enables the characterization of gene families. The ABC transporter and HMA gene families are important in the control of cadmium (Cd) accumulation in crops.
14p vijeeni2711 30-06-2021 10 1 Download
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Male sterility is a simple and efficient pollination control system that is widely exploited in hybrid breeding. In upland cotton, CCRI9106, a photosensitive genetic male sterile (PGMS) mutant isolated from CCRI040029, was reported of great advantages to cotton heterosis.
18p vijeeni2711 30-06-2021 10 1 Download
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The aim of present study, explore the distribution, relative abundance, species diversity and richness of syrphid flies for utilization as pollinator and biological control agents in floriculture ecosystem of Kashmir.
14p angicungduoc8 07-11-2020 6 1 Download
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Effect of intergeneric pollen on induction of parthenocarpy in watermelon (Citrullus lanatus Thunb.)
A field experiment was carried out during Rabi 2016 at College of Horticulture, Dr. Y.S.R. Horticultural University, Venkataramannagudem (A.P) to study the effect of intergeneric pollen on induction of parthenocarpy in watermelon. Among the intergeneric pollen studied, bottle gourd pollen was successfully induced parthenocarpy followed by bitter gourd pollen. However, minimum number of empty seeds (37.20) was recorded with ash gourd pollen. The lowest seed weight per fruit (1.60 g) was observed with bottle gourd pollen whereas maximum seed weight was recorded with control (17.99 g).
6p quenchua6 15-06-2020 10 1 Download
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The objective of this work was to study the different breeding systems, seed viability and seed germination in four nerium Cultivars (Nerium oleander L.). Different breeding systems like natural open pollination, autogamy, controlled pollinations and geitenogamy were studied in two seasons. In both the season of pollination no fruit set was observed in autogamy. In case of natural open pollination both the season of pollination up to five per cent of fruit set was observed in nerium cultivars.
11p nguathienthan5 04-06-2020 7 1 Download
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Field experiments were conducted to test the feasibility of using different caging material viz. perforated (3%) polyethylene sheet (200gauge), nylon net (1.2mm), butter paper bag including control (open pollination) for true to type seed production in Local selection-1 genotypes of papaya during summer and rainy seasons.
6p chauchaungayxua5 05-05-2020 6 2 Download
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Flowers open at sunrise and close at sunset, establishing a circadian floral movement rhythm to facilitate pollination as part of reproduction. By the coordination of endogenous factors and environmental stimuli, such as circadian clock, photoperiod, light and temperature, an appropriate floral movement rhythm has been established; however, the underlying mechanisms remain unclear.
21p vichoji2711 29-04-2020 11 1 Download
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Observations of precocious (early bearing) genotypes of walnut (Juglans regia L.) under natural conditions encouraged us to study the origin and genetic control of these fascinating traits.
9p vishikamaru2711 29-04-2020 8 0 Download
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Photoperiod and/or thermo-sensitive male sterility is an effective pollination control system in crop two-line hybrid breeding. We previously discovered the spontaneous mutation of a partially male sterile plant and developed a thermo-sensitive genic male sterile (TGMS) line 373S in Brassica napus L.
14p viuchiha2711 21-04-2020 9 2 Download
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Tomato is widely consumed vegetable in the world. It is used as raw and processed form. Tomato flowers are self as well as controlled pollinated. The crop has more than thirteen species including cultivated and wild types with huge diversity and is susceptible to diverse stress conditions. Recent advances in the biotic and abiotic stress in tomato transcriptomics have been reviewed here. Transcriptome is a particular set of RNA expressed during a stress, developmental stages or a condition in a group of cells.
31p caygaocaolon4 04-04-2020 11 1 Download
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The choice of parents in a breeding programme for hybridization is one of the most critical considerations, since the selection on the basis of performance does not provide clear information. Combining ability, play a significant role in crop improvement, since they help in characterizing the nature and magnitude of genetic effects governing yield and component traits, besides pinpointing the promising parents to be used in the creation of genetic variability for eventual use in development of suitable varieties in self-pollinated crops.
9p trinhthamhodang4 22-03-2020 21 2 Download
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The present investigation entitled as “Effect of hardening media and different cross combinations on physiological parameters of in vitro cultured citrus plantlets” was carried out in the Division of Fruits and Horticultural Technology, ICAR-IARI, New Delhi. The experiment consisted of embryo rescued plantlets from cross pollination (control pollination) and open pollination (uncontrolled pollination) and two hardening media HM1(Coco peat: Perlite: Vermiculite, 1:1:1) and HM2 (Coco peat: Perlite: Vermiculite, 2:1:1).
6p cothumenhmong1 08-12-2019 9 1 Download
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A comparative assessment of fruit formation in some orchid species from the southern Caucasus region
The distribution and population size of 5 orchid species (Cephalanthera longifolia, Orchis simia, Platanthera bifolia, Dactylorhiza romana, and Ophrys scolopax) were studied in the southern Caucasus based on the individual numbers in a given area. The fruit set was recorded for the latter 3 species and compared in natural and control groups (pollinators prevented) for D. romana and O. scolopax
8p vibasque27 27-03-2019 10 0 Download
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Maize (Zea mays L.) hybrids with good yields of grain and whole-plant dry matter are preferred for forage production. The objective of this study was to examine the relationship between kernel development and nutritive value of maize silage, using controlled pollination to alter the extent of ear fill in 4 maize hybrids.
8p aquaman27 15-01-2019 30 1 Download
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Birds, by their very existence, enhance our daily lives. For many of us, it is a thrill to see the splash of a Brown Thrasher in a birdbath, or the flash of red in green woods as a tanager darts past. It is a gift of nature that such birds – which play an important role in healthy ecosystems by controlling pests, dispersing seeds, and pollinating plants – are also so beautiful and such a joy to watch.
34p coeus75 29-01-2013 54 4 Download
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This book is a compilation of 29 chapters focused on: pesticides and food production, environmental effects of pesticides, and pesticides mobility, transport and fate. The first book section addresses the benefits of the pest control for crop protection and food supply increasing, and the associated risks of food contamination.
0p camchuong_1 04-12-2012 81 8 Download
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Plant biotechnology Biotechnology: “the application of scientific methods to manipulate living cells or organisms for practical purposes.” Nabors; Chapter 14. “For centuries, humankind has made improvements to crop plants through selective breeding and hybridization — the controlled pollination of plants. Plant biotechnology is an extension of this traditional plant breeding with one very important difference — plant biotechnology allows for the transfer of a greater variety of genetic information in a more precise, controlled manner.” From Monsanto web page on biotechnology. ...
9p cuongcnsh53 14-03-2011 139 21 Download