Saimaneerat A., Pookpakdi A., Crozat Yves, Kasemsup P..
1997. Effects of water deficit on growth and yield of cotton cultivar Si Samrong 60.
In : Abstracts. Regional conference and workshop on "cotton research and development in South-East Asia" and the third national cotton conference. Kasetsart University; CIRAD-CA; Ministry of Foreign Affairs
Résumé : The objectives of this study were to determine the effects of water deficit on growth, yield and yield components of cotton (Gossypium hirsutum L.). The study has been conducted in the dry season of 1996 (January-July, 1996) at National Corn and Sorghum Research Center, Pak Chong, Nakhon Ratchasima. The experimental design was RCB with 4 replications. The cultivar Si Samrong 60 was used in this experiment. The treatments composed of full irrigation applied everyweek (T1), stress period at the beginning of square producing stage (T2) and stress period at the early blooming stage (T3). Mid-day leaf water potential (yi) was used as an indicator for water deficit, when y, reached to about-2.5 MPa, the irrigation was started again. The results revealed that plant height, number of nodes per plant and height to node ratio of T2 and T3 were statistically lower than of T I during stress period. The production of reproductive organs of T2 and T3 were significantly reduced. Ten days after reirrigation, the recovery and rapid growth occurred in T2 and T3. Thus, the total seed cotton yield of T2 and T3 was not significantly different from T I. However, T3 gave the greatest seed cotton yield, approximately 3 tons/ha.
Auteurs et affiliations
- Saimaneerat A., Kasetsart University (THA)
- Pookpakdi A.
- Crozat Yves, CIRAD-CA-COTON (THA)
- Kasemsup P.
Source : Cirad - Agritrop (https://agritrop.cirad.fr/392566/)
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