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A study of Vertical Distribution of Airborne Pollen in Nsukka and Pollen Analysis of a Core From Lake Obayi, Nguru-Nsukka

By Njokuocha, Reginald C

The s t u d y of a i r - b o r n e palynomorphs t r a p p e d at
h e i g h t s of 15m and l . B O m , i n U n i v e r s i t y of N i g e r i a , W~ukka
and p o l l e n a n a l y s i s of s e d i m e n t s a m p l e s f r o m O b a y i Lake,
Nguru-Nsukka h a v e b e e n c a r r i e d o u t .

Published: 21/06/1997

Tags: Airborne, pollen

Size: 3.13MB

Studies On Nodulation And Yield Of Cowpea (Vigna Unguicu;ata (L) Walp.)

By Kwaye, Romanus Galako

'Thirty-five (35) cultivars of cowpea (Vigiza urzguiculata (L.) walp). were used
in pot and field experiments to investigate nodulation pattern with plant biomass and the
relationship between yield and yield attributes. Nodule initiation was observed within
5 days after emergence in all the cowpea varieties. Identifiable nodules were observed
15 days after sowing in most of the cultivars. V,, (IT89K-355); V2,,(IT91K-118-20) and
V3, (Local cultivar) recorded the highest number of nodules among the cultivars wl~ilc
V,, (I'r93K-624) and V,, (IT93K-596) recorded the least. A positive linear rcla~ionship
betwecn age of plants and plant biomass (dry weight) was observed in inost of the
cullivars with the exception of V, (IT89KD-349) and V2,(1T90K-365) wlicre a negative
cosrelalion was observed.
The thirty-five cultivars were screened in the ficld for eleven morpliological
attributes including seed yield. Hybridization studies were also carried out to investigate
improvement of nodulation and the inheritance of yield and yield-associatcd characters

Published: 21/03/1998

Size: 7.00MB

phytoplankton production in relation to physico-chemical status in Ogelube lake, opi, Nsukka

By Nkechinyere Onyewere Nweze

The rate of phytoplankton production in ogelube lake, opi, Nsukka was determined. It was related to seasonal variations in phytoplankton population and physico-chemical parameters such as depth, PH, temperature, transparency, color, alkalinity, oxygen, sulfide, iron, total dissolved solids, phosphates, nitrates, silica and ammonia nitrogen.

Published: 02/12/2018

Tags: phytoplankton, lake

Size: 3.88MB

Girth Induction in Irvingia Gabonensis Var Excelsa

By Nzekwe, Uche, and Onyekwelu, S.s.c.

Girth Induction in Irvingia Gabonensis Var Excelsa. National Horticultural Research Institute

Published: 20/04/1997

Tags: Girth Induction, Irvingia, Gabonensis Var Excelsa, Horticultural Research.

Size: 1.03MB

Studies on the Anatomy of the Mature Bark and Fungal Degradation of the Wood of Para-Rubber, Hevea Brasillensis (Kunth) Muell. Arg.

By Nzekwe, Uchendu

The anatomy of the mature bark of eleven clones of para-rubber, Heves brasilliensis (KUNTH) MUEU, ARC. was studied, to assess the relationship
between their structural features and latex yield, and to identify clones with synergistic combinations of yield determinants, which may be of interest to breeders and farmers,

Published: 02/12/2018

Tags: anatomy, Mature Bark and Fungal Degradation of the Wood, Para-Rubber, Hevea Brasillensis

Size: 3.00MB

PHYTOPLANKTONS PRODUCTION IN RELATION TO PHYSIO-CHEMICAL STATUS IN OGELUBE LAKE, OPI, ANAMBRA STATE

By Nkechinyere Onyekwere Nwaeze

THE RATE OF PHYTOPLANKTONS PRODUCTION IN oGELUBE lAKE, oPI, nSUKKA WAS DETERMINED. It was related to seasonal variations in phytoplanktons population and physio-chemical parameters such as depth, PH, temperature, iron, transparency, colour, alkalinity, oxygen, sulphide, total dissolved solids, phosphates, nitrates, silica and ammonia nitrogen

Published: 02/12/2018

Tags: phytoplanktons, physio-chemical parameters, PH, temperature, iron, transparency, colour, alkalinity, oxygen, sulphide, total dissolved solids, phosphates, nitrates, silica and ammonia nitrogen

Size: 3.88MB

Cytological and Breeding Studies of Soyabean (Glycine Max (L.) Merill)

By Ebot, Martin Etchi

Six cultivars of soybean collected from two localities were used in green house, field and laboratory experiments, to investigate their yields and yield attributes protein content and chromosome number.

Published: 07/07/1991

Tags: Cytological and Breeding Studies of Soyabean

Size: 3.72MB

WOODY BIOCHAR COMBINED WITH TWO NUTRIENT SOURCES PROMOTES GERMINATION, SEEDLING GROWTH AND YIELD OF OKRA GROWN IN DEPLETED SANDY SOIL

By Oburo, Francisca Onyebuchi

The chronic problem of soil depletion, acidification and erosion, caused by poor agricultural practices and reckless burning of organic materials have compounded the problem of food security and climate change in South Eastern Nigeria. Currently not much has been done to check these problems. Controlled burning of organic materials under reduced or absence of oxygen (pyrolysis) produces biochar which can address these problems and much more. This study was carried out to produce biochar from Gmelina (BCGM) and Pentaclethra (BCPE) wood offcuts and combine them with poultry droppings (PD) and NPK (NPK 15:15:15, chemical fertilizer) in varied forms to determine the best combination for amendment of acidic sandy soil from Opi valley in Nsukka. Both screen house and field studies covering seed germination, seedling growth and yield of okra (Abelmoschus esculentus (L.)(Moench) were carried out in a repeated experiment (experiment 1 and 2) at the Botanic garden, University of Nigeria Nsukka, using CRD and RCBD designs respectively for the two locations of the studies.

Published: 02/12/2018

Tags: woody biochar, germination, seedling growth, okra, depleted sandy soil

Size: 7.45MB

SCREENING OF THREE STANDARD BASAL MEDIA FOR IN VITRO PROPAGATION OF GLYCINE MAX LINN. ZYGOTIC EMBRYOS

By Okoro, Chinalurum Peace

Three different standard basal media were screened for the propagation of Glycine max Linn. zygotic embryos in vitro. The media employed were those of Murashige and Skoog (MS) (1962), Gamborg et al. (B5) (1968) and Schenk and Hildebrandt (SH) (1972). This study was done to determine the most suitable medium for the propagation of G. max Linn. zygotic embryos. The results obtained showed that although all the three basal media screened supported the in vitro propagation of the embryos but MS medium was the most effective in this respect. The embryos with the longest shoot (10.98 ± 1.00 cm), longest root (5.5 ± 0.59 cm) and highest fresh weights (0.2682 ± 1.00 g) were observed among those cultured in the MS medium whereas the B5 medium produced embryos with the highest percentage sprout (28.57 ± 0.51 %) and SH medium produced the highest sprout rate (0.4575 ± 0.384). The embryos were able to develop into normal plantlets even in the absence of externally applied plant growth regulators. This may suggest the presence of endogenous hormone in the zygotic embryos at a level that supported the propagation of the embryos. Also, the levels of ions present in all the media would have been optimum as plantlets which grew into normal seedlings were regenerated in all of them. This work recommends the use of MS medium for the propagation of G.max Linn. zygotic embryos as it proved to be the most effective of the three media screened.

Published: 02/12/2018

Tags: basal media, in vitro propagation, glycine max linn, zygotic embryos

Size: 11.18MB

WOODY BIOCHAR COMBINED WITH TWO NUTRIENT SOURCES PROMOTES GERMINATION, SEEDLING GROWTH AND YIELD OF OKRA GROWN IN DEPLETED SANDY SOIL

By Oburo, Francisca Onyebuchi

The chronic problem of soil depletion, acidification and erosion, caused by poor agricultural practices and reckless burning of organic materials have compounded the problem of food security and climate change in South Eastern Nigeria. Currently not much has been done to check these problems. Controlled burning of organic materials under reduced or absence of oxygen (pyrolysis) produces biochar which can address these problems and much more. This study was carried out to produce biochar from Gmelina (BCGM) and Pentaclethra (BCPE) wood offcuts and combine them with poultry droppings (PD) and NPK (NPK 15:15:15, chemical fertilizer) in varied forms to determine the best combination for amendment of acidic sandy soil from Opi valley in Nsukka. Both screen house and field studies covering seed germination, seedling growth and yield of okra (Abelmoschus esculentus (L.)(Moench) were carried out in a repeated experiment (experiment 1 and 2) at the Botanic garden, University of Nigeria Nsukka, using CRD and RCBD designs respectively for the two locations of the studies.

Published: 02/12/2018

Tags: woody biochar, germination, seedling growth, okra, depleted sandy soil

Size: 7.45MB

In vitro and Breeding Studies of the African Yam Bean, Sphenosstylis stenocarpa (Hochst ox, A. Rich) Harms

By Kanu, Joy Ijeoma

Six cultivars of the African yam bean (sphenostylis stenocarpa) were used in field and laboratory experiments designed to study the crop yield and to explore the possibility of raising plants through invitro cu1ture techniques.

Published: 02/12/2018

Tags: African Yam Bea, Sphenosstylis stenocarpa

Size: 15.57MB

The Cell Wall Structure And The Industrial Utilization Of The Oil Of Para Rubber Seed In Paint Manufacture

By Njoku, Obioma Uzoma

The Cell Wall Structure And The Industrial
Utilization Of The Oil Of Para Rubber Seed In
Paint Manufacture

Published: 19/09/1994

Tags: Cell Wall Structure, Industrial Utilization, Para Rubber, Seed, Paint Manufacture

Size: 9.41MB

FACTORS INDUCING MULTIPLE SHOOT FORMATION FROM EMBRYO EXPLANTS OF PINUS CARIBARAVA YAR, ILONDURENESS IN VITRO

By G.i. Ameh,, S.n.c. Okongkwo,, et al

Embryo emplant of pinus carbaera development multiple shoots when cultured on von anold and larkson basal medium supplemented with benzylamino parime

Published: 18/09/1999

Tags: factors inducing multiple shoot formation

Size: 772.24KB

Studies on Nodulation and Yield of Cowpea (Vigna unguiculata (L) Walp)

By Kwaye, Romanus Galako

Thirty-five (35) cultivars of cowpea (Vigna unguiculata (L.) Walp.). were used
in pot and field experiments to investigate nodulation pattern wih plant biomass and the relationship between yield and yield attributes. Nodule initiation was observed within 5 days after emergence in all the cowpea varieties

Published: 12/03/1998

Tags: Nodulation and Yield of Cowpea, Vigna unguiculata (L) Walp, KWAYE, Romanus Galako 1998

Size: 24.38MB

Studies on Nodulation and Yield of Cowpea (Vigna unguiculata (L) Walp).

By Kwaye, Romanus Galako

Thirty-five (35) cultivars of cowpea (Vigna unguiculata (L.) Walp.). were used
in pot and field experiments to investigate nodulation pattern with plant biomass and the relationship between yield and yield attributes. Nodule initiation was observed within 5 days after emergence in all the cowpea varieties. Identifiable nodules were observed 15 days after sowing in most of the cultivars. V,, (IT89K-355); V2,(IT91K-1 18-20) and V, (Local cultivar) recorded the highest number of nodules among the cultivars while
V,, (Ir1'931

Published: 16/03/1998

Tags: nodulation, cowpea, vigna unguiculata, Botany, Kwaye

Size: 24.38MB