Studies on
heterosis in okra (Abelmoschus esculentus
(L.) Moench)
Ramesh
K Singh1, Rajesh Kumar2, Sanjay K Singh3
1Division of Crop
Improvement & Biotechnology (Mango Database Project) ICAR-Central Institute
for Subtropical Horticulture (CISH) Rehmankhera (Malihabad), P.O. Kakori,
Lucknow-227107 (UP)
2Department of
Horticulture (Vegetable & Floriculture), Bihar Agricultural University, Sabour
(Bhagalpur) – 813 210, Bihar
3Krishi Vigyan
Kendra, Kanti, Jawahar Lal Nehru Krishi Vishwavidyalaya, Madhya Pradesh
Received:
25 September 2015 Revised
Accepted: 16 October 2015
ABSTRACT
In the present investigation a study was undertaken
in the Department of Agricultural Botany, Annamalai University during the year
2006-2008 to identify potential parents and superior cross combinations for
yield improvement of okra. Six bhendi genotypes viz Girija Vikas, MDU 1,
Hissar Unnath, Arka Abhay and EC 305623 were crossed in full diallel fashion
(including the reciprocals). The eight characters observed included days to 50
per cent flowering, plant height, number of branches per plant, number of
fruits per plant, fruit length, fruit girth, individual fruit weight, fruit
yield per plant. The results revealed that the standard heterosis for fruit
yield per plant was maximum with the hybrid MDU 1 x Hissar Unnath. Standard
heterosis upto a value of 65.23 per cent recorded by MDU 1 x Hissar Unnath. This
hybrid recorded high standard heterosis for all the characters except number of
branches per plant and individual fruit weight.
Key Words: Different
type of heterosis, Heterosis, Oka