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Inheritance of inflorescence, size and spacing on the tomato plantJohnson, Arthur William, 1939- January 1968 (has links)
No description available.
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Occurrence and development of epiphyllous inflorescences: consequences of their morphological interpretation, with special reference to Phyllonoma integerrima (Trucz.) Loes and Helwingia japonica (Thunb.) Dietr.Dickinson, Timothy Adam January 1974 (has links)
No description available.
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Occurrence and development of epiphyllous inflorescences: consequences of their morphological interpretation, with special reference to Phyllonoma integerrima (Trucz.) Loes and Helwingia japonica (Thunb.) Dietr.Dickinson, Timothy Adam January 1974 (has links)
No description available.
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Characterization of the Arabidopsis compact inflorescence 3 (cif3) mutant and identification of the cif3 gene product as a chloroplast localized putative ATPaseCameron, Jeffrey Carlyle. January 2005 (has links) (PDF)
Thesis (M.S.)--Montana State University--Bozeman, 2005. / Typescript. Chairperson, Graduate Committee: Robert Sharrock. Includes bibliographical references (leaves 36-37).
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Ueber die Inflorescenz und Blüte von Gunnera manicata Linden /Jonas, Victor, January 1892 (has links)
Thesis (doctoral)--Universität Erlangen, 1892. / Cover title. Includes bibliographical references.
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Inflorescence initiation and development, and the manipulation therof [sic], in selected cultivars of the genus ProteaGerber, Audrey I. (Audrey Inga) 03 1900 (has links)
Thesis (PhD(Agric))--University of Stellenbosch, 2000. / ENGLISH ABSTRACT: Little is understood regarding flowering in the genus Protea. The information
available on inflorescence initiation and development in the family Proteaceae was
reviewed and discussed. A number of experiments were conducted to investigate
inflorescence initiation and development, and their manipulation for commercial
production, in selected Protea cultivars, in the Western Cape, South Africa (33°S,
Protea species can be allocated into groups according to similar times of flower
initiation and of harvest. The stages occurring during flower initiation, and their
synchrony relative to shoot growth were investigated for three cultivars, viz. Protea
cv. Carnival (P. compacta x P. neriifolia), Protea cv. Lady Di (P. compacta x P.
magnifica) and Protea cv. Sylvia (P. eximia x P. susannae), when flower initiation
occurred on the spring growth flush.
For all three cultivars the spring flush was preformed and enclosed in the apical bud
before spring budbreak. During elongation of the spring flush the apical meristem
produced floral primordia which differentiated into involucral bracts. After
completion of the spring flush meristematic activity continued, to produce floral bracts
with florets in their axils. The three cultivars showed differences and similarities in
the time of budbreak, and the rates of shoot growth, appendage formation and flower
development. The presence of mature leaves on an over-wintering shoot is essential for
inflorescence initiation on the spring growth flush of 'Carnival'. Inflorescence
initiation in 'Carnival' started at spring budbreak, and production of involucral bracts
occurred concurrently with spring flush elongation. Shoots were defoliated at
different degrees of severity at intervals from pre- to post- spring budbreak. Total
defoliation applied earlier than 6-7 weeks before spring budbreak prevented flowering.
Defoliation closer to spring budbreak affected characteristics of the spring flush and
the inflorescence subtended by the spring flush. Effects were most marked following
total defoliation and diminished with less severe treatments imposed by partial
defoliation. Total defoliation applied before spring budbreak resulted in slower
inflorescence development and lead to later anthesis. Defoliation treatments applied
after completion of spring flush elongation had no effect on either vegetative or
reproductive spring growth.
The requirement for mature overwintering leaves to effect inflorescence initiation in
'Carnival' suggests that environmental factors, such as low temperature and daylength
may play an inductive role. Shoots were in the induced state and committed to
flowering 6-7 weeks before spring budbreak.
A change in source size and position subsequent to different severalties of defoliation
in 'Carnival' lead to reduced dry mass accumulation and altered partitioning. Mature
leaves on the overwintering shoot supported growth of the spring flush and the early
stages of inflorescence development. When these leaves were removed by total
defoliation dry mass accumulation in the spring flush was reduced. A hierarchy of priorities between competing sinks was revealed by defoliation during growth of the
spring flush and concomitant inflorescence development: formation of involucral
bracts> leaf growth> stem elongation. Dry mass accumulation of the inflorescence
subtended by the spring flush was supported by the spring flush leaves and was only
indirectly affected by defoliation. Treatments which resulted in the production of a
weaker spring flush lead to a reduction in dry mass accumulation of the inflorescence.
Different severalties of partial defoliation, whereby either upper or lower leaves were
removed from a shoot, indicated that the position of leaves relative to the active sink
is more important, with respect to source availability, than the number of leaves on the
shoot.
Mature overwintering leaves are essential in 'Lady Di' for shoots to achieve the
induced state for flowering; and are also crucial to the early stages of inflorescence
initiation. Defoliation applied before formation of involucral bracts was complete
prevented flowering. Defoliated shoots either remained vegetative or produced
inflorescences which aborted. Reserve carbohydrates in the stem and leaves of
overwintering shoots were low, and early growth and development of both the spring
flush and inflorescence were, therefore, supported by current photosynthates from the
overwintering leaves. Likewise, reserve carbohydrates available in the flowering
shoot were insufficient to account for the dry mass increase during the major portion
of growth of the spring flush and inflorescence. This rapid increase in dry mass
occurred after elongation of the spring flush was complete and was supported by
current photosynthates from the leaves of the spring flush. Defoliation treatments that did not prevent inflorescence initiation, had no effect on inflorescence development,
and flowering time of 'Lady Di' was not delayed by defoliation.
'Sylvia' has an open window for inflorescence initiation and can initiate flowers
throughout the year. Despite the 'open window' inflorescences are initiated more
readily on the spring flush, when it is subtended by one or more overwintering shoots.
This may be the expression of a facultative response to inductive conditions for which
'Carnival' and 'Lady Di' have an obligate requirement.
The date of pruning affected flowering time of 'Sylvia' by influencing on which flush
inflorescence initiation occurred, and the harvest could be manipulated to fall within
the optimum marketing period for export to Europe. Flowers initiated on the spring
flush reach anthesis in January and February; on the first summer flush predominantly
in April and May; on the second summer flush in July and August; and on the autumn
flush in November and December. Thus, shoots harvested within the optimum
marketing period (September to February) initiated inflorescences on the autumn and
spring flushes. Due to the readiness of shoots to initiate inflorescences on the spring
flush many shoots harvested in January and February (following initiation in the
previous spring) were short and were rendered unmarketable. For commercial
production pruning in July is recommended. Long flowering stems will be harvested
in October to November of the following year. Since the vegetative and reproductive
cycles necessary to produce inflorescences on long stems span more than a year, a
biennial cropping system is recommended. / AFRIKAANSE OPSOMMING: Bloeiwyse-inisiasie en -ontwikkeling, en die manipulasie
daarvan, van geselekteerde cultivars van die genus Protea.
Min word verstaan van blomvorming in die genus Protea. Die beskikbare inligting
oor die bloeiwyse-inisiasie en -ontwikkeling in die familie Proteaceae is nagegaan en
bespreek. 'n Aantal eksperimente is uitgevoer waarin geselekteerde Protea cultivars
van die Wes-Kaap, Suid-Afrika (33°S, 19°0) se bloeiwyse-inisiasie en -ontwikkeling,
asook die manipulasie daarvan vir kommersiële produksie ondersoek is.
Protea spesies kan in groepe ingedeel word op grond van blominisiasietye en oestye
wat ooreenstem. Die verskillende stadiums van blominisiasie en hulle sinchronisering
relatieftot stingelgroei is ondersoek vir drie kultivars, naamlik Protea cv. Carnival (P.
compacta x P. neriifolia), Protea cv. Lady Di (P. compacta x P. magnifica) en Protea
cv. Sylvia (P. eximia x P. susannae) tydens blominisiasie op die lentegroeistuwing.
By al drie die kultivars was die lentegroeistuwing reeds gevorm en omsluit in die
apikale knop voor die lente-knopbreking. Gedurende die verlenging van die
lentegroeistuwing het die apikale meristeem blomprimordia, wat in bloeiwyseomwindselskutblare
gedifferensieer het, geproduseer. Na voltooiing van die
lentegroeistuwing, het meristematiese aktiwiteit voortgeduur en blomskutblare met
blommetjies in hulle oksels is gevorm. Die drie kultivars het verskille en
ooreenkomste vertoon tydens die periode van knopbreking, asook in die tempo van
stingelgroei, aanhangselformasie en blomontwikkeling. Die teenwoordigheid van volwasse blare op 'n oorwinteringstingel is noodsaaklik vit
bloeiwyse-inisiasie op die lentegroeistuwing van 'Carnival'. Bloeiwyse-inisiasie in
'Carnival' het met lente-knopbreking begin en die produksie van bloeiwyseomwindselblare
het gelyktydig met lentegroeistuwing verlenging plaasgevind.
Stingels is met tussenposes, van voor tot na die lente-knopbreking, en met
verskillende grade van felheid, ontblaar. Algehele ontblaring vroeër as 6-7 weke voor
die lente-knopbreking het blomvorming verhoed. Ontblaring nader aan die lenteknopbreking
het 'n invloed gehad op die eienskappe van die lentegroeistuwing asook
die bloeiwyse gedra deur die lentegroeistuwing. Die effek was die duidelikste sigbaar
by algehele ontblaring en het verminder namate die behandeling minder fel geword
het by gedeeltelike ontblaring. Algehele ontblaring wat voor die lente-knopbreking
gedoen is, het gelei tot stadiger bloeiwyse-ontwikkeling en later antese.
Ontblaringsbehandelings wat na die voltooiing van die lentegroeistuwing verlenging
toegepas is, het geen effek op die vegetatiewe of die reproduktiewe lentegroei gehad
me.
Die nodigheid van volwasse oorwinteringsblare vir bloeiwyse-inisiasie in 'Carnival'
dui daarop dat omgewingsfaktore soos lae temperature en daglengte 'n induktiewe rol
kan speel. Stingels was in die geïnduseerde toestand en verbind tot blomvorming 6-7
weke voor die lente-knopbreking.
'n Verandering in oorspronggrootte en -posisie as gevolg van verskille in die felheid
van ontblaring by 'Carnival', het gelei tot verminderde droë-massa-akkumulasie en veranderde verdeling. Volwasse blare op die oorwinteringstingel het die groei van die
lentegroeistuwing en die vroeë stadiums van bloeiwyse-ontwikkeling ondersteun. Toe
hierdie blare verwyder is in 'n algehele ontblaring, het die droë-massa-akkumulasie in
die lentegroeistuwing verminder. 'n Hiërargie van prioriteite tussen kompeterende
sinke is blootgelê tydens ontblaring gedurende die lentegroeistuwing en saamlopende
bloeiwyse-ontwikkeling: vorming van bloeiwyse-omwindselblare > blaargroei >
stamverlenging. Droë-massa-akkumulasie van die bloeiwyse onderspan deur die
lentegroeistuwing is ondersteun deur die blare van die lentegroeistuwing en is slegs
op 'n indirekte wyse deur ontblaring geaffekteer. Behandelings wat tot die produksie
van 'n swakker lentegroeistuwing gelei het, het tot 'n vermindering in die droë-massaakkumulasie
van die bloeiwyse gelei.
Verskille in die felheid van gedeeltelike ontblaring, waartydens óf die boonste óf die
onderste blare van 'n stingel verwyder is, het aangetoon dat die posisie van die blare
relatief tot die aktiewe sink belangriker is, met betrekking tot die beskikbaarheid van
die oorsprong, as die aantal blare op die stingel.
By 'Lady Di' is volwasse oorwinteringsblare noodsaaklik VIr stingels om die
geïnduseerde stadium van blomvorming te bereik en hulle is ook van die uiterste
belang in die vroeë stadiums van bloeiwyse-inisiasie. Waar ontblaring gedoen is
voordat die vorming van bloeiwyse-omwindsel voltooi was, het blomvorming nie
plaasgevind nie. Ontblaarde stingels het ófvegetatief gebly ófbloeiwyses geproduseer
wat geaborteer het. Reserwe-koolhidrate in die stam en blare van die
oorwinteringstingels was laag en die vroeë groei en ontwikkeling van beide die lentegroeistuwing en die bloeiwyse is dus deur die bestaande fotosintate van die
oorwinteringsblare onderhou. Net so was die reserwe-koolhidrate beskikbaar in die
blomdraende stingels nie voldoende om die toename in droë massa gedurende die
grootste deel van die groei van die lentegroeistuwing en die bloeiwyse te verklaar nie.
Hierdie vinnige toename in droë massa het plaasgevind nadat die verlenging van die
lentegroeistuwing voltooi was en is deur die bestaande fotosintate van die blare van
die lentegroeistuwing onderhou. Ontblaringsbehandelings wat nie bloeiwyse-inisiasie
verhoed het nie, het geen effek op bloeiwyse-ontwikkeling gehad nie en die blomtyd
van 'Lady Di' is nie deur ontblaring vertraag nie.
'Sylvia' beskik oor 'n oop venster vir bloeiwyse-inisiasie en kan regdeur die jaar
blomme inisieer. Ten spyte van die 'oop venster', word bloeiwyses tog meer geredelik
in die lentegroeistuwing geïnisieer, wanneer dit deur een of meer van die
oorwinteringstingels gedra word. Dit mag die uitdrukking wees van 'n fakultatiewe
respons op induktiewe toestande wat vir 'Carnival' en 'Lady Di' 'n verpligte vereiste is.
'Sylvia' se blomtyd is deur die snoeidatum geaffekteer omdat die snoeidatum 'n
invloed gehad het op die keuse van by watter groeistuwing bloeiwyse-inisiasie
plaasgevind het. Die oestyd kon gemanipuleer word om binne die optimum
bemarkingstydperk vir uitvoer na Europa te val. Blomme wat op die
lentegroeistuwing geïnisieer is, bereik antese in Januarie en Februarie; dié wat op die
eerste somergroeistuwing geïnisieer is, bereik antese hoofsaaklik in April en Mei; dié
wat op die tweede somergroeistuwing geïnisieer is, bereik antese in Julie en Augustus
en dié wat op die herfsgroeistuwing geïnisieer is, bereik antese in November en Desember. Stingels wat in die optimum bemarkingsperiode (September tot Februarie)
geoes is, het dus bloeiwyses op die herfs- en lente-groeistuwings geïnisieer. As gevolg
van die gereedheid van stingels om bloeiwyses op die lentegroeistuwings te inisieer,
was baie van die stingels wat in Januarie en Februarie geoes is, kort en kon nie
bemark word nie. Vir kommersiële doeleindes word snoei in Julie aanbeveel. Lang
blomdraende stingels sal in Oktober en November van die volgende jaar geoes word.
Aangesien die vegetatiewe en reproduktiewe siklusse wat nodig is om bloeiwyses met
lang stingels te produseer oor meer as fn jaar strek, word fn tweejaarlikse
oesinsamelingstelsel aanbeveel.
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THE POLLINATION BIOLOGY OF PANICULATE AGAVES: DOCUMENTING THE IMPORTANCE OF MALE FITNESS IN PLANTS.SUTHERLAND, STEVEN DALE. January 1982 (has links)
Recently, it was hypothesized that pollinator selectivity for large inflorescences has led to the evolution of monocarpic reproduction in agaves. To test this hypothesis, fruit set and stalk length data were collected for six species of paniculate agaves and two species of spicate agaves. Regression results, for all of the paniculate species and for one species of the spicate agaves, showed no significant correlation between fruit set and stalk length. These results do not support the pollinator selectivity hypothesis. The validity of the assumptions was then examined, utilizing the results from hand pollination, pruning, and tie down experiments. These results imply that factors other than pollinator availability might be important in determining fruit set in agaves. In an effort to determine the relative importance of resource and pollinator limitation to fruit set in Agave chrysantha, three treatments were applied to entire plants: (1) natural pollination, (2) natural and hand pollination, and (3) hand pollination. When fruits were collected, there were no significant differences between percent fruit set for the three treatments, implying that fruit set is not limited by the availability of pollinators. When additional plants were pruned to reduce the total number of flowers by approximately one-half, thereby doubling the amount of resources available to each flower, the percent fruit set was twice that for control plants, implying that percent fruit set is energy limited. It is common for plants that exhibit resource limited fruit set to have relatively low fruit-to-flower ratios. This is surprising, since it appears that the resources expended for production of these "excess flowers" could be allocated to fruit maturation and thereby increase fruit production. Four hypotheses explaining the fruit set in Agave mckelveyana are tested. Results from pruning, bagging, and hand pollination experiments indicate that the apparently "excess flowers" do not contribute to fruit production (female fitness). Additional data on nectar production imply that these flowers act primarily as pollen donors and contribute only to male fitness. The importance of pollen donation (male fitness) in determining fruit set is examined for hermaphroditic, monecious, and dioecious plants.
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Leuko-antosianienbinders as beheermaatreël vir die voorkoming van bruinwording in ProtealoofblareDu Plessis, Dawid Gerhardus Cornelius 25 September 2014 (has links)
M.Sc. (Botany) / The purpose of this investigation was to determine the effects of various physical treatments (limitation of transpiring surface, removal of stem base and changing of vase water and different numbers of inflorescence per constant volume of vase water) on the browning of foliage and the rate of water absorption by Protea neriifolia in florescences. The binding capacity of lead acetate with flavonoids in vase media was also determined. The limitation of the number of leaves (transpiring surface) per peduncle resulted in less absorption of leached browning and stem plugging components. Regular removal of the stem base and changing of vase water inhibit stern blockage and accumulation of leached products in the vase medium. A large number of inflorescences in a limited volume of vase medium resulted in higher concentrations of leached flavonoids and other browning components. A reduced number of leaves per peduncle, regular removal of stern base and changing of vase water, as well as a limited number of inflorescences per constant volume of vase medium, ensured adequate continuous water uptake, which is essential to limit browning.
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Flower initiation and development of Protea cv. CarnivalHoffman, Eleanor Wilhelmina 12 1900 (has links)
Dissertation (PhD(Agric))--University of Stellenbosch, 2006. / ENGLISH ABSTRACT: Advancement of the flowering time of Protea cv. Carnival by approximately three months,
without compromising the product quality, was achieved by the application of 6-
benzyladenine-containing plant growth regulators to three-flush shoots in autumn. This
earlier flowering time coincides favourably with the prime European marketing period
(November-January). The percentage three-flush shoots initiating an inflorescence
following the brush application of the 6-benzyladenine (BA)-containing regulators, ABG-
3062 (active ingredient: BA 2% w/w) and Accel® (active ingredients: BA 1.8% w/w;
gibberellins A4A7 0.18% w/w) on dormant terminal buds, increased with later application
dates and flowering percentages as high as 90% was achieved. No inflorescences were
initiated on flushes induced by Promalin® (active ingredients: BA 1.8% w/w; gibberellins
A4A7 1.8% w/w).
Phenological phase progression of green point, flush expansion and inflorescence
development of 'Carnival' shoots as induced by BA was calculated to have base temperatures
of 8°C, 6°C and 1°C respectively.
The days required from application of the BA-containing growth regulator until green point
stage increased progressively over the six consecutive treatment dates in autumn (14 March -
22 May 2003). In contrast, the days required to complete inflorescence development
decreased with each successive treatment date. The days required between the respective
stages were mostly negatively correlated with temperature, except for the phase 'green point
to flush expansion', where the relationship was unclear. For three-flush shoots of eight-year
old plants, between 13-57, 39-65 and 121-177 days were required to reach green point, to achieve full flush expansion following green point and to complete inflorescence after flush
expansion respectively.
BA application enhanced budbreak in most dormant shoots, irrespective of plant age, BA
concentration, decreasing temperature over time or shoot characteristics. However, twoflush
shoots treated in late May had low budbreak and hence low flowering percentages.
Shoots varied considerably in their responsiveness to BA treatments. BA application
(500mg·L-1) as MaxCelTM (active ingredients: BA 1.9% w/w) to terminal buds alone of
mature three-flush shoots from less vigorous growing plants resulted in the highest flowering
percentages. Applications were most effective when applied to the terminal bud in the
dormant state or up to the ‘green point’ stage. Shoot characteristics such as flush length, leaf
area, shoot dry mass, number and proximity of the leaves to the terminal bud were all
positively correlated with the propensity of shoots to initiate inflorescence under BA
induction. Terminal flush intercalation shoot diameter (>7mm) was identified as the most
important variable influencing the likeliness of flowering and can effectively serve as a nondestructive
estimation of a shoot's propensity to flower.
The presence of developing inflorescences or possible floral inhibiting factors derived from
the previous flowering season is suggested to be inhibitory to inflorescence initiation
following BA application. Synchronisation of shoot growth by pruning plants in late winter
appears to be an essential step to ensure high percentages inflorescence initiation with BA
treatment the following autumn. The use of BA as a management tool to control flowering
times in Protea for better market opportunities is shown to hold considerable commercial
potential. / AFRIKAANSE OPSOMMING: Protea cv. Carnival se blomtyd is met ongeveer drie maande vervroeg sonder om
produkkwaliteit prys te gee. Hierdie vervroegde blomtyd wat gunstig saam val met die
optimale Europese bemarkingstyd van November-Januarie is bewerkstelling deur die herfstoediening
van 6-bensieladenien-bevattende plantgroei-reguleerders op lote bestaande uit
drie groeistuwings. Die persentasie lote met drie groeistuwings wat 'n bloeiwyse geïniseer
het na 'n kwas-aanwending met die 6-bensieladenien (BA)-bevattende groeireguleerders,
ABG-3062 (aktiewe bestandeel: BA 2% w/w) en Accel® (aktiewe bestandele: BA 1.8% w/w;
gibberellins A4A7 0.18% w/w), het toegeneem met latere behandelingsdatums en
blompersentasies so hoog as 90% is behaal. Geen bloeiwyses is geïnisieer op groeistuwings
wat deur Promalin® (aktiewe bestandeel: BA 1.8% w/w; gibberellins A4A7 1.8% w/w)
teweeggebring is nie.
Basis temperature van 8°C, 6°C en 1°C respektiewelik is bereken vir fenologiese fasevordering
vanaf groeireguleerder toediening tot by groenpunt, groeistuwing-voltooing en
bloeiwyse-ontwikkeling van 'Carnival' lote soos geïnduseer deur BA. Die dae wat benodig
was vanaf toediening van die BA-toediening totdat groenpunt stadium bereik is, het
progressief toegeneem oor die ses opeenvolgende herfsbehandelingsdatums (14 Maart-22
Mei 2003). In teenstelling met bostaande, het die vereiste aantal dae om bloeiwyseontwikkeling
te voltooi afgeneem met elke opeenvolgende behandelingsdatum. Die aantal
dae wat benodig was vir die onderskeie fases was meestal negatief gekorreleer met
temperatuur, behalwe vir die fase 'groenpunt tot groeistuwing-voltooing', waar die
verhouding onduidelik was. Vir lote van agt-jaar-oue plante met drie groeistuwings was
tussen 13-57, 39-65 en 121-177 dae respektiewelik benodig om groenpunt te bereik, volledige groeistuwingverlenging te bewerkstellig en om bloeiwyse-ontwikkeling wat volg
na groeistuwing verlenging, te voltooi.
BA-toediening het knoprusbreking bevorder in die meeste dormante lote, ongeag plant
ouderdom, BA konsentrasie, afname in temperatuur met tyd of loot eienskappe. Lote met
twee groeistuwings wat laat in die herfs behandel is, het egter lae rusbreking en dus
gevolglik ook lae blompersentasies getoon.
Lote varieer aansienlik in hul reaksie op BA behandeling. BA toediening (500mg·L-1) as
MaxCelTM (active ingredients: BA 1.9% w/w) op die terminale knop van afgeharde lote met
drie groeistuwings en afkomstig van minder groeikragtige plante het tot die hoogste
blompersentasies gelei. Die effektiwiteit van die behandeling was die hoogste met
toedienings aan dormante terminale knoppe tot en met groenpuntstadium. Loot eienskappe
soos groeistuwinglengte, blaaroppervlakte, loot droë massa, asook die aantal en nabyheid
van die blare relatief tot die terminal knop was almal positief gekorreleerd met die vermoë
van die loot om 'n blom te inisisieer in reaksie op BA induksie. Terminale groeiverstuwing
interkalasie-lootdikte (>7mm) is geïdentifiseer as die belangrikste veranderlike wat die
vermoë om te kan blom kan beïnvloed en kan gebruik word as 'n nie-destruktiewe
voorspeller vir blom-inisiasie.
Die teenwoordigheid van ontwikkelende bloeiwyses of potensiële blom-inhiberende faktore
aanwesig in die loot na die vorige blomperiode, word moontlik beskou om inhiberend te
wees vir BA-geïnduseerde blom-inisiasie. Sinchronisering van lootgroei deur die snoei van
plante in laat-winter blyk krities te wees om 'n hoë blompersentasie met BA behandeling te
verseker in die daaropvolgende herfs. Die aanwending van BA as 'n bestuurstegniek om die
blomtyd van Protea te posisioneer vir beter bemarkingsgeleenthede toon aansienlike
kommersiële potensiaal.
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Étude de la biologie florale et de mécanismes de pollinisation d'Arisaema triphyllumBarriault, Isabelle January 2007 (has links)
Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.
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