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Publication
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| Title of Article |
Understanding growth rate patterns among different drought resistant sugarcane cultivars during plant and ratoon crops encountered water deficit at early growth stage under natural field conditions |
| Date of Acceptance |
15 October 2021 |
| Journal |
| Title of Journal |
Agronomy |
| Standard |
SCOPUS |
| Institute of Journal |
Agronomy MDPI |
| ISBN/ISSN |
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| Volume |
2021 |
| Issue |
11 |
| Month |
October |
| Year of Publication |
2021 |
| Page |
2083-2103 |
| Abstract |
Drought-tolerant sugarcane genotype is proposed to alleviate early water deficit issue; however, phenology on crop growth rate and growth patterns is important to investigate. This study aimed to investigate the responses of different water deficit-tolerant cultivars on crop growth rate patterns of both plant crop and ratoon under rain-fed and well-irrigated conditions, and to determine the relationship between final stalk dry weight and crop growth rates during water deficit, recovery and maturity phases. A 2 x 6 split plot in randomized complete block design with four replications was used. Two water regimes namely field capacity (FC) and rain-fed conditions were assigned as main plot, while six sugarcane cultivars differed in water deficit-tolerant levels were assigned as sub plot. Sugarcane cultivar KK3 consistently possessed high potential and low reduction of dried shoot weight. The correlation coefficients between stem growth rate, shoot growth rate, and HGR at recovery period in the first season and stalk dry weight were existed, and HGR at recovery stage correlated with the dry weight of ratoon. Recovery phase of early water deficit stress was a key stage for determining the final stalk dry matter. The desired cultivar having a good adaptation to water deficit stress at formative stage, such as KK3, showed gradually increased growth rate during early water deficit stage but it would go rapid and reach maximum growth rate during recovery period. These knowledges will be expedient in clarify the selection of sugarcane cultivar which resist water deficit at early growth stage in breeding program. |
| Keyword |
water shortage, stalk dry weight, recovery stage, height growth rate |
| Author |
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| Reviewing Status |
ไม่มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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