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Volume 8 Issue 1
Mar.  2017
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Article Navigation >  Journal of Tropical Biology  > 2017  >  8(1): 52-57

ZHOU Yaqiu, SUN Qi, CHEN Xia, LAI Hanggui, CHEN Songbi, YE Jianqiu. Pollen Germination in Situ and Stigma Receptivity of Cassava[J]. Journal of Tropical Biology, 2017, 8(1): 52-57. doi: 10.15886/j.cnki.rdswxb.2017.01.009
Citation: ZHOU Yaqiu, SUN Qi, CHEN Xia, LAI Hanggui, CHEN Songbi, YE Jianqiu. Pollen Germination in Situ and Stigma Receptivity of Cassava[J]. Journal of Tropical Biology, 2017, 8(1): 52-57. doi: 10.15886/j.cnki.rdswxb.2017.01.009
shu

Pollen Germination in Situ and Stigma Receptivity of Cassava

doi: 10.15886/j.cnki.rdswxb.2017.01.009

  • 1. College of Agronomy, Hainan University, Haikou, Hainan 570228, China;

  • 2. Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China

  • Received Date: 2016-11-07
  • Rev Recd Date: 2016-12-06
  • The pollen germination and stigma receptivity is an important part of plant reproduction,and it is the basis for the artificial pollination in reproduction and crossbreeding. The pollen germination rate and pollen tube growth of cassava varieties SC5 and SC7 were observed by using the method for pollen germination in situ and in vivo,and the stigma receptivity was detected by using the benzidine-hydrogen peroxide test. The differences of the pollen tube germination process in selfng or crossing of these two cassava varieties were analyzed to determine the best pollination time for the stigmas of the pistil of cassava. The results show that there are differences in pollination affinity of the cassava varieties in the self-and cross-pollination,and that cross pollination had obvious advantages in pollen germination speed and rate. The best pollination time for the stigma was 2-5 h after the female flowers opened,and the stigma receptivity was the highest within 5-24 h. The stigma receptivity turned to be weaker with time and was no longer available after 72 h.
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Pollen Germination in Situ and Stigma Receptivity of Cassava

doi: 10.15886/j.cnki.rdswxb.2017.01.009
  • 1. College of Agronomy, Hainan University, Haikou, Hainan 570228, China;
  • 2. Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China
  • Received Date: 2016-11-07
  • Rev Recd Date: 2016-12-06

Abstract: The pollen germination and stigma receptivity is an important part of plant reproduction,and it is the basis for the artificial pollination in reproduction and crossbreeding. The pollen germination rate and pollen tube growth of cassava varieties SC5 and SC7 were observed by using the method for pollen germination in situ and in vivo,and the stigma receptivity was detected by using the benzidine-hydrogen peroxide test. The differences of the pollen tube germination process in selfng or crossing of these two cassava varieties were analyzed to determine the best pollination time for the stigmas of the pistil of cassava. The results show that there are differences in pollination affinity of the cassava varieties in the self-and cross-pollination,and that cross pollination had obvious advantages in pollen germination speed and rate. The best pollination time for the stigma was 2-5 h after the female flowers opened,and the stigma receptivity was the highest within 5-24 h. The stigma receptivity turned to be weaker with time and was no longer available after 72 h.

ZHOU Yaqiu, SUN Qi, CHEN Xia, LAI Hanggui, CHEN Songbi, YE Jianqiu. Pollen Germination in Situ and Stigma Receptivity of Cassava[J]. Journal of Tropical Biology, 2017, 8(1): 52-57. doi: 10.15886/j.cnki.rdswxb.2017.01.009
Citation: ZHOU Yaqiu, SUN Qi, CHEN Xia, LAI Hanggui, CHEN Songbi, YE Jianqiu. Pollen Germination in Situ and Stigma Receptivity of Cassava[J]. Journal of Tropical Biology, 2017, 8(1): 52-57. doi: 10.15886/j.cnki.rdswxb.2017.01.009
shu

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