Stigma receptivity in pigeonpea [Cajanus cajan (L.) Millspaugh]

Dalvi, V.A. and Saxena, K.B. (2009) Stigma receptivity in pigeonpea [Cajanus cajan (L.) Millspaugh]. Indian Journal of Genetics and Plant Breeding , 69 (3). pp. 247-249.

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Seeds of a cytoplasmic-nuclear male-sterile line ICPA 2039 and its maintainer were sown during the rainy season of 2006 inside an insect-proof nylon cage in a field in Patancheru, Andhra Pradesh, India. To study the stigma receptivity, hand pollinations were carried out on male-sterile plants using pollen of the maintainer line at different stages of flower bud growth of female parent. These materials and methods not only excluded the need of emasculation for controlled pollinations but also avoided chances of accidental self- or cross-pollination. Results revealed that the stigma of ICPA 2039 remained receptive for a total of approximately 120 h, starting at 48 h before flower opening and continued until 72 h thereafter. However, a considerable variation in pod set was observed in different days during this period. To optimize pod set in Patancheru environments, pollinations should be initiated a day before flower opening and continued for 3 days.

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, India
Subjects: Crop Improvement
Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Pigeonpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 28 Nov 2010 20:36
Last Modified: 29 Dec 2010 20:17
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