Afaq Majid Wani , K. C. Chauhan

Abstract

Bauhinia variegata bore whitish pink flowers on one year old shoot growth during March-April. The duration of flowering ranged from 26-49 days. Mean time taken to flower bud development was found to be between 20.88 to 24.92 days. The maximum anthesis and anther dehiscence was observed between 7:00 to 8:00 am and 7:30 to 8:30 am, respectively. The average size of pollen grains was found 68.97 μm. In-vivo stigma remained receptive with effect from 2 hrs before anthesis to 8 hrs after anthesis (88.89%).

Keywords

Floral Biology, Stigma Receptivity, Bauhinia variegata

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Afaq Majid Wani , B. S. Hmannihring , M. Deka

Abstract

Ten half-sib progenies of Albi ia lebbeck belonging to different places of Allahabad regions were sown in glasshouse and field condition with a view to assess the impact of two different environments on the expression of genetic diversity using non-hierarchical Euclidean cluster analysis. Superior tree progenies were grouped into four clusters under glasshouse as well as in field atmosphere. Families of plus tree S₉ and S₁₀ formed one cluster both under glasshouse and field back ground. Inter cluster distance was found to be highest between cluster IV and II (59.06) under green house whereas, under field condition cluster III and I showed maximum (51.80) inter cluster distance. Within a cluster showed low intra-cluster distance <1.681), under both the environments, revealing their genetic closeness. Leaf area followed by seedling height contributed maximum to the total divergence and played a predominant role in creating the genetic diversity.

Keywords

Statistics, Cluster, Albi ia lebbeck

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Mohd. Saleem Wani , Afaq Majid Wani

Abstract

Twenty genotypes of Madhuca inidica Gmel. scattered over district Allahabad, and adjoining areas in Uttar Pradesh in their natural range were studied for the pattern of genetic variation. Higher values for phenotypic coefficient of variation as compared to genotypic coefficient of variation in germination and nursery growth parameters, indicate that they are greatly influenced by the environment. The heritability and expected genetic gain were also observed to be high for these characters, except for number of leaves per seeding, leaf area, shoot/ischolar_main ratio and total biomass of seedling. The correlations between germination per cent, germination energy index per cent,mean daily germination, seedling height, seedling collar diameter and internodal length at phenotypic level were positive and significant. The families F₁₅, F₁₈, F₁₉ and F₂₀ showed good performance and are recommended for further genetic improvement programme in this species.

Keywords

, Genetic Variability, Germination, Heritability

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Afaq Majid Wani ¹, Basim Mohiuddin ¹, Abdul Nasir ¹

Affiliations
1 College of Forestry and Environment, Allahabad Agricultural Institute-Deemed University, Allahabad, Uttar Pradesh, IN

Abstract

A study was conducted to reveal the spring phenology and pollen studies in Delonix regia in the College of Forestry, Allahabad Agricultural Institute- (Deemed University) Allahabad, U.P. The study revealed that the synchronous flowering of Delonix regia started during first week of April and ended towards last week of June. Full blooming period was observed from last week of April to 2^nd week of June. Microscopic studies revealed circular pollen grains with a three germ pore. The maximum anthesis averagewas observed between 06:30 a.m. to 10:30 to a.m. Maximum anther dehiscence was recorded between 10:00 a.m. to 11:00 a.m. Total number of stamens per flower was ten with average size of 4.9 cmand number of Gynoceium was one with average maximum size of 5.9 cm. Main flower visitors identified on Delonix regia were Nectarinia sp, Merops orientalis and Dicrurus macrocercus. Pollen grains were yellow in colour, circular and 3-colporate. In-vitro pollen germination test indicated that in 20 per cent sucrose solution gave maximum germination (78.94) per cent after 12 hours of pollen dispersal.

Keywords

Phenology, Pollen Grains, Delonix regia.

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