Studies on floral biology and breeding behaviour of sweet orange (Citrus sinensis (L.) Osbeck.)
KrishiKosh
View Archive InfoField | Value | |
Title |
Studies on floral biology and breeding behaviour of sweet orange (Citrus sinensis (L.) Osbeck.)
|
|
Creator |
Kumatkar, Raghunath Bhimrao
|
|
Contributor |
Godara, A. K.
|
|
Subject |
fruits, biological phenomena, animal developmental stages, environmental degradation, attractants, bactrocera cucurbitae, biological interaction, sexual reproduction, precipitation, eggs
|
|
Description |
The present experiment was conducted to study the floral biology and breeding behaviour of sweet orange cultivars viz., Pineapple, Blood Red, Jaffa and Mosambi. In sweet orange flowering takes place only once in year i.e. February–March under North Indian conditions. The duration of floral bud development was 19-23 days in different cultivars Jaffa was earliest to start flowering. The duration of flowering was 20-23 days in the cultivars. These cultivars came to full bloom in last week of February to first week of March. Two type of inflorescence were observed i.e. leafy and leafless. The flowers were borne on current season’s growth in the axils of leaves either solitary or in cymes of three to eight. Flower structure observed in sweet orange with five sepals, five petals and twenty stamens with superior ovary. The maximum opening of flowers and dehiscence of anthers took place in morning hours (10.00 A.M. to 12.00 noon) in all the cultivars. Stigma became receptive just after anthesis and remained receptive till 72 hours of pollination in all the cultivars. The maximum receptivity was recorded on the day of anthesis. The highest fruit set was recorded in cultivar Jaffa under open pollination (32.84%) followed by self pollination (29.81%) and lowest fruit set was recorded in cv. Blood Red. |
|
Date |
2016-09-15T11:16:39Z
2016-09-15T11:16:39Z 2014 |
|
Type |
Thesis
|
|
Identifier |
http://krishikosh.egranth.ac.in/handle/1/76820
|
|
Language |
en
|
|
Format |
application/pdf
|
|
Publisher |
CCSHAU
|
|